Metrodata MetroLAN User Manual

Metrodata MetroLAN User Manual

Metrodata LtdFortune HouseCrabtree Office VillageEversley WayEghamSurrey TW20 8RY United Kingdom

tel: +44 (0) 1784 744700fax:+44 (0) 1784 744730email: [email protected] Part No: 76-02-059Dwebsite: www.metrodata.co.uk

www.metrodata.co.uk

MetroLAN

Use

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anua

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Metrodata Ltd

No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of

Metrodata Ltd,

Fortune House,

Crabtree Office Village,

Eversley Way,

Egham, Surrey, TW20 8RY,

United Kingdom.

Tel: +44 (0) 1784 744700

Fax: +44 (0) 1784 744730

e-mail: [email protected]

www: http://www.metrodata.co.uk

DisclaimerMetrodata Ltd makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties or merchantability or fitness for any particular purpose. Further, Metrodata Ltd reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Metrodata Ltd to notify any person of such revision or changes.

TrademarksThe Trademarks of other Corporations which may be used in this manual are hereby acknowledged.

Copyright © 2008 by Metrodata LtdAll Rights Reserved

CONTENTS

1 INTRODUCTION 11. 1 About The MetroLAN 11. 2 Typical MetroLAN Installation 21. 3 About This Manual 31. 4 Conventions 3

2 STATUTORY INFORMATION 52. 1 Safety 52. 2 Electromagnetic Compatibility 52. 3 FCC Declaration 52. 4 Power Supply 52. 5 On board batteries 62. 6 Laser technology 62. 7 WEEE Directive 6

3 INTRODUCING THE MetroLAN 73. 1 Front Panel 73. 2 Rear panels 83. 3 Power Supply 93. 4 Remote Management port 103. 5 Alarm Extension 103. 6 Terminal Port 113 . 6. 1 Minimum RS232 connection 123 . 6. 2 V.24 Terminal Connector 9 Way to 9 Way 123 . 6. 3 V.24 Terminal Converter 9 Way to 25 Way 133. 7 E1/T1 Terminal Ports 143 . 7. 1 Balanced RJ45 E1/T1 Port Layout 143 . 7. 2 Connecting an E1/T1 port to a network device 153 . 7. 3 Connecting an E1/T1 port to a terminal device 153 . 7. 4 RJ45 Connector layout 173 . 7. 5 Cable lengths and types 173. 8 10/100 BaseT LAN ports 183 . 8. 1 LAN port layout 183 . 8. 2 E3/DS3 BNC Port layout 18

4 INSTALLING & SETTING-UP 194. 1 Connecting up 194. 2 Power-Up Sequence 204. 3 User Interface 204 . 3. 1 TTY terminal 214 . 3. 2 VT100/VT220 and ANSI terminals 224. 4 Default settings 23

5 SETTING-UP THE MetroLAN 255.1 MetropLAN 1000 and 2000 Menu Structures 255.2 Mapping 275 .2.1 VC-4 275 .2.2 VC-3 275 .2.3 VC-12 275.3 Main Set-up Menu 295.4 Accessing the Wizard to configure the MetroLAN1000 305.5 Configuring the remote unit 315 . 5. 1 Get Config 315 . 5. 2 Put Config 315.6 Configuring MetroLAN units remotely 325 . 6. 1 Setting the Unit IP Address 325 . 6. 2 Setting a default Route 335.7 Alarm extension 345 .7.1 Clear Alarm Outputs 345 .7.2 SDH port alarm menu 355 .7.3 VC 365 .7.4 LAN port alarms 37

5 .7.5 E1/T1 port alarms 385 .7.6 DS3/E3 port alarms (MetroLAN2000 only) 395.8 Data port set-up menus 405.9 V.24 set-up menu 405 .9.1 Terminal type 405 .9.2 Via Modem 405 .9.3 Baud rate 405 .9.4 Parity 415 .9.5 Data bits 415 .9.6 Stop bits 415 .9.7 Load new config 415.10 Management 425 .10.1 Management menu 425 .10.2 Telnet Option 435 .10. 3 TFTP 445 .10. 4 Ping 455.11 System menu 465 .11.1 Date 465 .11.2 Node name 475 .11.3 Password 475 .11.4 Software version 475 .11.5 Output config 475 .11.6 Input config 485 .11.7 Warm start 495 .11.8 Cold start (Caution!) 495 .11.9 Event Logs 505.12 Testing menu 515.13 Performance data 51

6 QUICK START METROLAN1000 USING THE WIZARD 536.1 Using the Wizard. 546 .1. 1 Select the number of LAN ports 546 .1. 2 Select the number of E1/T1 ports 546 .1. 3 Select E1/T1 interface type 546 .1. 4 Configuring the unit 546.2 Configuring units remotely 556 . 2. 1 Get Config 556 . 2. 2 Put Config 556.3 Configuring MetroLAN units from a remote location 566 . 3. 1 Setting the Unit IP Address 566 .3. 2 Setting a default Route 57

7 ADVANCED DATA PORT SET-UP MENUS 597.1 SDH port set-up 617 .1. 1 Type of fibre 627 .1. 2 Timing 627 .1. 3 C1/J0 selection 627 .1. 4 J0 transmit/J0 expected & receiving 627 .1. 5 E1 value 627 .1. 6 Degrade detection threshold (sD thresholds) 637 .1. 7 Payload 637 .1. 8 Path signal label 647 .1. 9 J1 transmit/ J1 expected & receiving 647 .1. 10 RDI type 657 .1. 11 Unused tribs sent 657 .1. 12 Counters 657.2 LAN port set-up 667 .2. 1 State 667 .2. 2 Auto-negotiation 677 .2. 3 Flow control 677 .2. 4 MDI/MDIX 687 .2. 5 MAC address 68

7 .2. 6 FCS generation 687 .2. 7 Max frame size 687 .2. 8 GFP payload fcs 687 .2. 9 Allocation 697 .2. 10 LCAS 697 .2. 11 Max differential delay 697 .2. 12 RDI type 697 .2. 13 J2 transmit & J2 expected 707 .2. 14 List allocation 707 .2. 15 LCAS status 717 .2. 16 Counters 717.3 E1 / T1 PORT 737 .3. 1 State 737 .3. 2 Interface 737 .3. 3 Rx sensitivity 737 .3. 4 Allocation 737 .3. 5 RDI type 747 .3. 6 J2 transmit & J2 expected 747 .3. 7 List allocation 747 .3. 8 Counters 757.4 E3 / DS-3 PORT (MetroLAN2000 only) 767 .4. 1 State 767 .4. 2 Interface 767 .4. 3 Allocation 767 .4. 4 RDI type 767 .4. 5 J1 transmit & J1 expected 777 .4. 6 List allocation 777 .4. 7 Counters 77

8 ANALYSING PERFORMANCE 798. 1 Introduction 798. 2 Errors and Alarms 798 . 2. 1 SDH port errors & alarms 798 . 2. 2 VC errors & alarms 808 . 2. 3 E1/T1 errors & alarms 808 . 2. 4 Error and Alarm definitions 818. 3 Performance menu 828 . 3. 1 Interface 828 . 3. 2 Display mode 828 . 3. 3 Summary style 828 . 3. 4 Physical layer stats 828 . 3. 5 Error type 838. 4 Physical layer stats – Reports 838 . 4. 1 Full Report 838 . 4. 2 Rolling report 848. 5 Physical layer stats - Summaries 858 . 5. 1 Screen presentation 858 . 5. 2 Presentation display modes 858 . 5. 3 Summary style 868 . 5. 4 Summary display - COUNTS style 868 . 5. 5 Summary display - G.821 style 878 . 5. 6 Summary display - Percent G.821 style 88

9 TEST & TROUBLESHOOTING 899. 1 Testing Menu 899. 2 Local Loop Tests 90

10 MetroLAN REMOTE MANAGEMENT 9110.1 Management menu 9110 .1. 1 Telnet Option 9210 .1. 2 TFTP 9310 .1. 3 Ping 93

INTRODUCTION

1 76-02-059D

1 INTRODUCTION

1. 1 About The MetroLAN

The Metrodata MetroLAN offers the capability of extending multiple LAN segments across an SDH network. Initially two model variants are offered. These are MetroLAN-1000 offering LAN + E1/T1 transport; and MetroLAN-2000 with additional E3/DS-3 transport.

The MetroLAN presents LAN ports as fully auto-sensing 10/100BaseT interfaces with manual override, thereby supporting any LAN network infrastructure. The MetroLAN offers 8 independent LAN interfaces, each of which may be transported to a remote location via the SDH infrastructure.

Generic Framing Procedure (GFP) encapsulation along with virtual concatenation with VC-3 or VC-12 granularity and LCAS support offers maximum benefit to both service providers and users in terms of flexibility and bandwidth optimisation. The MetroLAN supports 8 independent GFP sessions, each of which may be directed to separate remote destinations.

The MetroLAN supports IEEE 802.3x flow control on all 10/100 ports to prevent traffic loss when reduced bandwidth is available. Full wire speed forwarding on any GFP session requires 50 VC-12 tributaries. The remaining bandwidth is available to other GFP sessions enabling the full 155Mbps SDH bandwidth to be utilised.

The MetroLAN supports large frames of up to 4096 bytes and is protocol and payload transparent. The MetroLAN will pass VLAN tagged frames, including “Q in Q” double tagged frames and CISCO ISL, transparently end to end. To further optimise network utilisation the MetroLAN offers 8 E1/T1 G.703 clear channel ports. Each E1/T1 may be mapped into an individual VC-12 for mapping into the remaining SDH payload.

SDH Network

PBX

SWITCH

PBX

SWITCH

PBXSWITCH

HEAD OFFICE

100 Mbps20 Mbps

STM-1

STM-1

STM-1

BRANCH OFFICE

BRANCH OFFICE

E1

E1

E110/100 BaseT

10/100 BaseT

10/100 BaseT

INTRODUCTION

2 76-02-059D

1. 2 Typical MetroLAN Installation

Figure 1.1 MetroLAN typical deployment

INTRODUCTION

3 76-02-059D

1. 3 About This Manual

This user manual describes the installation, commissioning and operation of the Metrodata MetroLAN SDH Access Multiplexer. It describes the operational functions of the unit, as well as the extensive performance monitoring facilities.

It is important that you read and understand the performance and operating limitations in Section 2 before attempting any connections. Also, familiarise yourself with each of the connectors at the rear of the unit, which are described in Section 3.

Section 3 describes the front and rear panels of the MetroLAN with details of connectors, connector layouts and alarm lights. It is worthwhile to study the detail of Sections 3 and 4 since this helps in installing and testing the unit.

Section 4, Installing & Setting-up, takes you through the basic steps of connecting the MetroLAN to the external devices that you may have.

Section 5 describes the MetroLAN menu and setting-up facilities, including the Wizard to achieve a simple (or Quickstart) set-up.

Section 6 describes the Quickstart facility and use of the Wizard in a self contained section.

Section 7 covers advanced Dataport set-up procedures for the more advanced or high technology user.

Section 8, Analysing Performance, shows you how to monitor the link and change the summary report options for the MetroLAN.

The diagnostic testing and troubleshooting functions of the MetroLAN are described in Section 9, including testing both local and remote connections.

Section 10 describes remote managemnt and set-up facilities.

1. 4 Conventions

Notes are used to provide the reader with either statutory information which must be observed for safety reasons, or additional information which may increase the MetroLAN's effectiveness.

A pair of arrows around a word indicates a key on the keyboard, such as

<space> or <escape>

There are two exceptions to this, which appear on some of the menus:

<display> indicates that selecting the option will lead to data being displayed on the screen.

<menu> indicates that the option leads to another menu, from which further options may be chosen.

INTRODUCTION

4 76-02-059D

Screen displays that contain variable information, such as the current date or time, show the variable in italics, surrounded by square brackets, i.e. [time], or “[nodename]”. The speechmarks indicate that the field contents can be specified by the user.

Where menu items are referred to in the text, these are shown in italics to help the reader to cross relate to menu information.

Screen examples: the MetroLAN allows you to use one of three options for displaying the menus on a terminal - ANSI, VT100/VT220 or TTY.

The screen examples in this manual use VT100/VT220 and are shaded to allow easy identification by the reader.

STATUTORY INFORMATION

5 76-02-059D

2 STATUTORY INFORMATION

2. 1 Safety

The following ports are designated SELV (Safety Extra Low Voltage) within the scope of EN41003:

E1 Line (or WAN) port (BNC or RJ45)4 x 10/100 BaseT Ethernet ports

These ports should only be connected to SELV ports on other equipment in accordance with EN60950 clause 2.3.

2. 2 Electromagnetic Compatibility

In order to ensure EMC compliance all signal and data cables and connectors must use a screened connector shell with a screened cable. The cable screen must be terminated to the screened connector shell and not connected to any pins of the connector. Failure to use the correct connector may compromise EMC compliance.

2. 3 FCC Declaration

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at its own expense.

2. 4 Power Supply

The MetroLAN is powered by a mains power supply with an input voltage range 100-250 VAC / 50-400 Hz. The maximum operating input current is 400mA rms at 100VAC.

An alternative -48V DC power supply is available. The maximum input current is 1000mA.

Section 3.2 provides more detail on power supplies.

Safety Notes: Excessive voltages are present inside the unit. There are no user serviceable parts inside the unit, and the cover should not be removed by unqualified personnel. The unit must not be exposed to damp or condensing conditions. The MetroLAN must be connected to safety earth for correct operation.

2. 5 On board batteries

The user is reminded that Metrodata motherboards use Lithium/Thionyl Chloride 3.6 volt battery cells for the maintenance of RAM. These batteries must be handled with care. There may be a risk of explosion if a battery is incorrectly replaced. Do not recharge, force open, heat or dispose of by fire. Replace only with the same type of battery.

STATUTORY INFORMATION

6 76-02-059D

Disposal must be in accordance with the manufacturer’s instructions. If in doubt about any aspect of battery replacement or disposal, please call Metrodata Technical Support Department.

2. 6 RoHS Compliance

The WCM1000 is compliant with the EU RoHS directive 2002/95/EC. The RoHs directive bans the use of six hazardous materials in products placed on the market after July 1st 2006. The six banned materials are Lead, Mercury, Hexavalent Chromium, Polybrominated Biphenyls, Polybrominated Diphenyl Ethers and Cadmium.

To ensure product reliability, the RoHS directive exempts Network Infrastructure Equipment including the WCM1000 product range, allowing the use of standard leaded solder; as such the WCM1000 range is manufactured using leaded solder.

2. 7 WEEE Directive

The MetroLAN unit is covered by Directive 2002/96/EC (OJ:L37/24/2003) on waste electrical and electronic equipment (The WEEE Directive). MetroLAN units must therefore not be disposed of in a standard landfill.

INTRODUCING THE MetroLAN

7 76-02-059D

3 INTRODUCING THE METROLAN

3. 1 Front Panel

The front panel of the MetroLAN is shown in schematic form below.

POWER TRIBUTARY FAULT TEST

LINEMAJOR

LINEMINOR

Figure 3.1 MetroLAN front panel

The MetroLAN provides you with essential information through a series of LED’s on the front panel. The colour of some of these LED’s will depend on the type of data that is being handled at the time, and these are described in Figure 3.2 below. Note that the LINE port label refers to the SDH port, whilst a Tributary fault may relate to any E1/T1 line, E3/DS-3 line, LAN or a VC fault.

Figure 3.2 Front panel alarms

LED Colour Meaning

Power Red Power is being received.

Line SDH

Line Major Red LOS, LOF, LOC, SD or OOF alarm is present

Line Minor Yellow AIS, FERF or TIM alarm is present.

Tributary Fault

Fault Red LOS (Major) or AIS (MInor) fault on any E1/T1 lineLKDN (Link Down) fault on any LAN portVC fault

Test

Red Local loop test in progress on SDH or any E1/T1 or E3/DS3 port

Unlit No test in progress


8 76-02-059D

3. 2 Rear panels

The MetroLAN is supplied in a metal enclosure for tabletop or 19” rack mounting using the optional rack mounting ears that bolt onto the side of the module.The MetroLAN 1000 unit is 1U high, whilst the MetroLAN 2000 which has the additional E3/DS-3 interfaces, is 1.5U high.The layout of the rear panels with their connections is shown in the figures below.

ALARM EXT

TERMINAL

100 -250VAC/50-400Hzwww.metrodata.co.uk

Tx Rx

NetworkSTM-1/OC3

HAZARD WARNING!DO NOT OPEN WITHPOWER CONNECTED

P2

P1

P4

P3

P6 P8

P5 P7

C R T LO X X II NL K

M ANPORT

10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8

E1

METROLANMetrodata Ltd

10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8

100 -250VAC/50-400Hz ALARM EXT

TERMINAL

www.metrodata.co.uk

Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7

www.metrodata.co.uk

Rx TxRx Tx

PORT 3 PORT 2

Rx Tx

PORT 1 METROLAN 2000Metrodata Ltd (METROLAN)


M ANPORT

E1

B D F H

A C E G

Figure 3.3 MetroLAN 1000 rear panel

Figure 3.4 MetroLAN 2000 rear panel


9 76-02-059D

3. 3 Power Supply

The MetroLAN is powered by a mains supply with an input voltage of 100-250VAC 50-400Hz and with a maximum input current of 400 mA at 100VAC. Mains power is connected via the IEC inlet on the rear of the unit.

An alternative -48VDC powered unit is available. The input voltage and current ranges are -minus 36 to 72 volts DC, 1000 - 500mA. A Buccaneer type socket is fitted to the rear panel, and a plug is provided with the unit for the customer’s own wiring. The connections are labelled on the rear panel of the MetroLAN.

Figure 3.5 -48VDC connections

On some units, an additional Ground stud may be located on the rear panel to permit a separate Ground connection to be made.

Pin1-48V

Pin30V

L__

Figure 3.6 DC Supply socket

Note: The MetroLAN must be connected to mains safety earth for correct operation.

Pin no Connection

1 -48VDC

2 Ground

3 0VDC


10 76-02-059D

3. 4 Remote Management port

This port is labelled MAN PORT on the rear panel. The LM1100 SNMP Enabler option gives access to the SNMP network management system via an IEEE 802.3/10BaseT interface on the rear of the unit. The layout of this port’s RJ45 connector is shown below:Note: The Management port is regarded as a SELV port within the scope of EN 41003.

Figure 3.7 Management port layout

3. 5 Alarm Extension

This port contains a 9-pin D-type connector, allowing you to connect the major and minor alarm relay contacts within the MetroLAN to a remote indicator, such as a bell or a lamp. The two types of connectors are described below. The Major alarm relay is energised for normal operation, so that major alarm indication is given if the mains power supply to the MetroLAN should fail. The Alarm Relay port is regarded as a SELV port within the scope of EN41003.

Figure 3.8 9-pin D-type connector layout

Pin Signal

1 Tx Data + ve

2 Tx Data - ve

3 Rx Data + ve

4 Not connected

5 Not connected

6 Rx Data - ve

7 Not connected

8 Not connected

Pin Function

1 Shield

2 Major common

3 Minor N/O

4 Minor N/C

5 Not connected

6 Major N/C

7 Major N/O

8 Minor common

9 Not connected


11 76-02-059D

3. 6 Terminal Port

The terminal port is provided for local management of the MetroLAN. It is a female 9-pin D-type connector with a full RS232 layout which is shown below.

Note: The Terminal port is regarded as a SELV port within the scope of EN 41003.

Figure 3.9 Terminal port connector layout

Note:If the menu item VIA MODEM in the V.24 SET-UP menu is set to its default value YES, then RTS (pin 7 on the MetroLAN terminal port) needs to be correctly driven, otherwise the user will be permanently logged out of the unit. To drive the RTS correctly, a fully configured cable can be used together with a terminal that supports hardware handshaking. An alternative approach is to connect the RTS and DSR signals together (pins 6 and 7) at the MetroLAN end of the cable.

Pin Function

1 DCD

2 Transmit

3 Receive

4 Not connected

5 Ground

6 DSR

7 RTS

8 CTS

9 Not Connected


12 76-02-059D

3 . 6. 1 Minimum RS232 connection

A cable to connect a local terminal to this port (without a modem) may have the minimum RS232 connection when this is suitable for the terminal being used, as shown below.

Female

Figure 3.10 Local terminal cable pinout

3 . 6. 2 V.24 Terminal Connector 9 Way to 9 Way

A connector cable can be used to connect from the 9-way female D-type connector on the rear panel of the MetroLAN to the 9-way D-type connector of a PC compatible COM port. This may be required if a PC is being used as the management terminal. The connections are:

Figure 3.11 Terminal port connector cable 9 way to 9 way

Note: To inhibit the modem control function, loop pins 6 and 7 at MetroLAN end of cable, and do not connect PC pin 7, RTS.

9-Way Male (MetroLAN)

Function 25 Way D Female 9 way D

1 Not connected

3 Transmit 2 3

2 Receive 3 2

4 Not connected

5 Ground 7 5

6 Loop to 7

7 Loop to 6

8 Not connected

9 9-25 Not connected

9 Way D Male (MetroLAN)

Function 9 Way D Female (PC)

1 DCD 1

2 Receive 2

3 Transmit 3

4 Not connected 4

5 Ground 5

6 DSR 6

7 RTS 7

8 CTS 8

9 Not connected 9


13 76-02-059D

3 . 6. 3 V.24 Terminal Converter 9 Way to 25 Way

A converter cable can be used to convert from the 9-way female outlet on the MetroLAN to a 25-way female D-type connector such as is used for many dumb terminals.

Figure 3.12 9 way to 25 way converter cable

Note: To inhibit the modem control function, loop pins 6 and 7 at MetroLAN end of cable, and do not connect PC pin 4, RTS

9 Way D Male (MetroLAN)

Function 25 Way D Female

1 DCD 8

2 Receive 3

3 Transmit 2

4 Not connected

5 Ground 7

6 DSR 6

7 RTS 4

8 CTS 5

9 Not connected 1, 9-25


14 76-02-059D

3. 7 E1/T1 Terminal Ports

There are 8 RJ45 based E1/T1 ports arranged in an array on the rear panel of the MetroLAN.The schematic below shows both types of metroLAN rear panels.

ALARM EXT

TERMINAL


Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7


M ANPORT

10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8

E1


10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8


TERMINAL

www.metrodata.co.uk

Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7

www.metrodata.co.uk

Rx TxRx Tx

PORT 3 PORT 2

Rx Tx



M ANPORT

E1

B D F H

A C E G

Figure 3.13 MetroLAN rear panels

The ports are shown as the array on the right hand side of the MetroLAN rear panel. They have a DCE interface, as described in detail below.

3 . 7. 1 Balanced RJ45 E1/T1 Port Layout

The layout of each of the female RJ45 E1/T1 ports mounted on the rear panel is shown below:

2 4 5 6 7 8

Figure 3.14 E1/T1 port layout

In earlier models the E/T1 ports may not be identified on the rear panel silk screening as given in the figure above. The numeric and alpha port descriptions are given in the table below.

Figure 3.15 E1/T1 ports by number and by port letter

RJ45 Pin No 1 3

Function Rx tip Rx ring Rx shield

Tx tip Tx ring Tx shield

N/C N/C

2 4 6 8 equals B D F H

1 3 5 7 equals A C E G


15 76-02-059D

3 . 7. 2 Connecting an E1/T1 port to a network device

The MetroLAN E1/T1 interface outlet presents a TE (Terminal Equipment) type interface. Connecting cables from the MetroLAN port to a network port such as an E1 leased line or an NTU are straight through.

Figure 3.16 Connection from MetroLAN (TE) to network device

3 . 7. 3 Connecting an E1/T1 port to a terminal device

Connection to a terminal equipment port such as a router or PABX requires a crossover cable as shown below. Dongle cables are provided with the MetroLAN product for each E1/T1 port.

Figure 3.17 Connection from MetroLAN to a terminal device

MetroLAN port pin

MetroLAN E1/T1 port function (TE)

Network portpin

Network port function (NE)

1 Rx tip 1 Tx tip

2 Rx ring 2 Tx ring

3 Rx shield 3 Tx shield

4 Tx tip 4 Rx tip

5 Tx ring 5 Rx ring

6 Tx shield 6 Rx shield

7 Not connected Not connected Not connected


MetroLAN port pin

MetroLAN E1/T1 port function (TE)

Terminal portpin

Terminal port function (NE)

1 Rx tip 4 Tx tip

2 Rx ring 5 Tx ring

3 Rx shield 6 Tx shield

4 Tx tip 1 Rx tip

5 Tx ring 2 Rx ring

6 Tx shield 3 Rx shield




16 76-02-059D

The dongle crossover cable is shown in the schematic below. When the MetroLAN product is to be connected to a TE device such as a router or a PABX then a crossover cable is necessary The MetroLAN is supplied with one crossover cable for each E1/T1 interface. The part number is 80-40-002.

Male RJ45Female RJ45

ALARM EXT

TERMINAL


Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7


M ANPORT 10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8

E1

B D F H

A C E G

Straight cable to NT deviceStraight cable to TE devicee.g. PABX or router

Crossover dongle

Figure 3.18 RJ45 E1 Dongle

Figure 3.19 TE and NT connections to MetroLAN

This use of dongle may not apply in the same way to Metrodata products other than MetroLAN, so the user should check the use of the dongle for each product individually.


17 76-02-059D

3 . 7. 4 RJ45 Connector layout

Figure 2.4 shows both the plug and socket head on so that any connecting wires are behind the connector. The connector numbering is shown.

1 2 3 4 5 6 7 8

8 7 6 5 4 3 2 1

LOCKING TAB

Figure 3.20 RJ45 layout

3 . 7. 5 Cable lengths and types

Cable lengths should be restricted to those defined below:

Figure 3.21 Cable lengths

Note: The total maximum attenuation of the cable attached to the network port must not exceed 6dB when measured at 1024 MHz. The frequency/attenuation characteristic of the cables attached to the network port shall follow a root frequency law. This port type is approved to CTR12, CTR13.

Cable Max Length (metres)

Belden 8132 (28 AWG) 175

Belden 9841 (24 AWG) 300


18 76-02-059D

3. 8 10/100 BaseT LAN ports

There are 8 RJ45 based 10/100 BaseT LAN ports arranged in an array on the rear panel of the MetroLAN.The schematic below shows the rear panels of both types of metroLAN.

ALARM EXT

TERMINAL


Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7


M ANPORT

10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8

E1


10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8


TERMINAL

www.metrodata.co.uk

Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7

www.metrodata.co.uk

Rx TxRx Tx

PORT 3 PORT 2

Rx Tx



M ANPORT

E1

B D F H

A C E G

Figure 3.22 MetroLAN rear panels

The 10/100 BaseT LAN ports are the left hand array as shown on the schematics above. The upper array has green indicator LEDs (one for each port). The LEDs show green when the port is active.The LED and port numbering is shown in the table below. This is also engraved in a table on the rear panel.

P3 P4 P7 P8

Figure 3.23 LAN port indicator LEDs & port numbers

3 . 8. 1 LAN port layout

Each of the ports in the array has the layout shown below, but will auto select MDI/MDIX configuration.

2 4 5 6 7 8

Figure 3.24 RJ45 LAN port layout

3 . 8. 2 E3/DS3 BNC Port layout

In earlier models the E3/DS-3 ports may not be identified on the rear panel silk screening as given in the figure above. The numeric and alpha port descriptions are given below.:

Figure 3.25 E3/DS-3 Port by number & letter

Port indicator LED P1 P2 P5 P6

Upper ports P2 P4 P6 P8

Lower ports P1 P3 P5 P7

RJ45 Pin No 1 3

Function Rx + Rx - Tx + Tx -

1 2 3 equals J K L

INSTALLING & SETTING-UP

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4 INSTALLING & SETTING-UP

This chapter describes how to set up the MetroLAN ready for use. It covers the initial connections, powering on the unit, and how to access the software that controls the operating parameters. Note that MetroLAN units must be used at each location on the SDH network.Safety Notice: Ports that are identified as SELV in this manual should only be connected to SELV ports on other equipment in accordance with EN 60950 clause 2.3.

4. 1 Connecting up

Step 1: MountingThe MetroLAN is housed in a convenient 1U or 1.5U table top enclosure. The unit may also be installed in a 19" rack using the rack mounting brackets supplied.

Step 2: SDH NetworkConnect each of the MetroLAN units to the SDH Network, using the dual connector located on the rear panel of each unit. Ensure that the correct fibre type is used, otherwise unreliable operation may occur. Step 3: LAN connectionsConnect the LAN or LANs at each site to the LAN ports using the RJ45 connector ports P1-P8 on the rear panel of the unit.

Step 4: E1/T1 connectionsConnect the E1/T1 lines to the E1/T1 ports A - H in the E1/T1 RJ45 socket matrix on the rear panel.

Step 4: E3/DS-3 connectionsConnect the E3/DS-3 lines to the ports J, K, L (1, 2, 3) on the MetroLAN rear panel.

Step 5: TerminalConnect the management terminal (Teletype or VT100/220 or PC) using the 9-way D- type connector labelled TERMINAL on the rear panel of the unit.

Step 6: Alarm ExtensionIf you wish to use an external alarm device, connect this to the rear panel port labelled ALARM EXT.

Step 7: SNMP Management PortIf you have the LM1100 SNMP Enabler option and wish to use it, connect the LAN to the port labelled MAN PORT using an RJ45 connector.

Step 8: Power SupplyFinally, connect the mains power lead (or DC power cable) and re-check all connections for security. See section 2.4 for connection details for the optional -48V DC power supply. Turn on the terminal and external alarm device if used, then turn on the power supply.

Warning: Do not connect the MetroLAN to excessive voltages. Read the safety information before continuing.

Step 9: Open menu systemWhen the unit has powered up, type the password using the management terminal.


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4. 2 Power-Up Sequence

When the MetroLAN is powered up, it performs several system tests. After a few seconds the start-up screen is shown on the terminal. Figure 4.1 below is an example only:

Figure 4.1 Start-up screens

In order to check or change any of the operating parameters, you will first need to gain access to the MetroLAN's software by logging in. Press any key, and a logon message will be displayed:

Figure 4.2 Logon screen

There are two levels of user - Observer, or Operator. If you type VIEW as the password, you will only be able to look at the current settings, and will not be able to change any of them. If you enter the correct operator password, you can change any parameters that are not defined as read-only.

The default operator password is the same as the model number, i.e. MetroLAN. When you have entered this once, you will be able to change the password if you wish, as described in Section 5.8. When you enter the appropriate password, you will be presented with the MAIN SET-UP menu. All of the MetroLAN's operating parameters are accessed through this initial menu.

4. 3 User Interface

The display of the menu, and the way you select menu options, will depend on which type of terminal you have connected to the unit, and which version of MetroLAN firmware you have. This section describes the differences between the three main types of display - how to change the display set-up is described at the end of this section.

Metrodata LimitedMetroLAN Sonet/SDH Access Multiplexer

Metrodata LimitedMetroLAN

Software version 5.0.694 23/3/05Wide Area Network Kernel 1993 Martin HarveyReal-time clock okaytime now: [time, date] Cold-start requested from consoleCold-starting Configuration data set to defaultsPerformance log cleared

Software version 5.0.694 23/3/05Wide Area Network Kernel 1993 Martin HarveyReal-time clock okaylast used: [time, date]time now: [time, date]

Warm-starting

Cold start Warm start

Metrodata MetroLAN: Local connection to "[nodename] "password ('view' to view only):


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4 . 3. 1 TTY terminal

With a TTY terminal, options are selected by pressing the first capital letter in the name. Generally, this will be the first letter, but where two menu options start with the same letter one of them will have another letter capitalised. An example of a TTY display (the default) is shown below:

Figure 4.3 TTY Main set-up menu

When you press a letter which leads to a further menu, the screen will scroll up and the new menu will be displayed. The item MANAGEMENT only appears if the LM1100 SNMP Enabler has been fitted to the MetroLAN.

Pressing a letter corresponding to a menu option will lead to additional prompts at the bottom of the screen:

Figure 4.4 Prompt screen

The current value of that option will then be shown. Each time you press the space bar, the next value will be displayed, cycling through the available values. When the required value is displayed, simply press the <enter> key to accept the value or press <escape> to cancel your choice. This process is known as toggling.

MAIN SET-UP

Global status

alarm eXtension <menu>

Data port set-up <menu>

V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>

Performance data <menu>

Select item by using first CAPITAL letter of name

<escape> - exit menu

<space> - change value<enter> - save new value<escape> - exit without saving


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4 . 3. 2 VT100/VT220 and ANSI terminals

The displays you see on a VT100/VT220 or an ANSI terminal are very similar, and examples are shown below:

Figure 4.5 VT/ANSI Main set-up menu

When you press a letter which leads to a further menu, the screen will be refreshed without scrolling, displaying the new menu.

If you press a letter corresponding to a menu option, the value opposite that option will be highlighted. You will also see the prompts at the bottom of the screen, similar to the TTY display:

Figure 4.6 Prompt screen

Pressing the space bar will cause the next available value to be displayed opposite the option. When the required value is displayed, simply press the <enter> key to accept the value or press <escape> to leave the existing value unchanged.This process is known as toggling.

Note that if you use a PC with the Windows Hyperterm terminal emulator set to VT100/220, click on View/Font and activate MS Linedraw to achieve best picture quality.

MAIN SET-UP

Global status <display>



V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>


HIGHLIGHTED letter - select item


<space> - change value<enter> - save new value<escape> - exit without saving


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4. 4 Default settings

The default settings for the terminal connected to the management port are given in the table below.

The terminal must be set to the MetroLAN default values after performing a cold start. Once this is done, the MetroLAN V.24 settings can be changed using the V.24 SET-UP menu, which is accessed from the MAIN SET-UP menu described in the next section.

The default terminal is a Teletype (TTY), but the vast majority of users will employ a VT100/220 or an ANSI terminal either directly or on a PC via a terminal emulator. The TTY output screens do not have graphic capability, and are therefore not so easy to read when setting up the system.

After a making changes in the MetroLAN’s stored terminal set-up (with the terminal on default settings), select LOAD NEW CONFIG on the menu screen. The physical terminal must then be re-set to correspond to the new values stored in the unit.

Figure 4.7 V.24 Terminal set-up defaults and options

V.24 Item Defaults Options

Terminal type TTY TTY, VT100/220, ANSI

Via Modem No Yes, No

Baud rate 19200 2400, 4800, 9600, 19200

Parity None Odd, Even

Data bits 8 7 or 8

Stop bits 2 1 or 2


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SETTING-UP THE MetroLAN

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5 SETTING-UP THE METROLAN

5.1 MetropLAN 1000 and 2000 Menu Structures

When you have completed the installation, and have successfully logged in, you will be presented with the MAIN SET-UP menu. In order to view or change a parameter, you need to know which menus or options to display. This section describes how to navigate your way through the menus.

Global status Display

alarm e tensionX Clear alarm outputs

SDH portVCLAN portE1/T1 port

Data port set-up

E1/T1 port [A-H]StateInterfaceRx sensitivityAllocationRDI typeJ2 transmitj2 eXpectedList allocationcouNters

Ethernet, IP, UDP, tCp, sNmp, tFtp, [Menus]Telnet,

Ping [Display]

Terminal type, via Baud rate, Parity, Data bits, Stop bits, Load new config

Modem , V.24 set-upV.24 set-up

Management

Interface, Display mode, Summary stylePhysical layer stats, Error type, Clear all data

Performance data

E1/T1 (A-H)

None, Local loop None, Local loop

SDH E1/T1 (A-H)Testing

SystemTime, Date, Node name, Password, Software version,Output config, Input config,Warm start, Cold start, Sub-product number, Event logs [Menu]

Type of fibreTimingC1/J0 selectionJ0 transmitj0 eXpected receivingE1 valueDeg det threshpaYloadPath signal labelreceivingj1 transmitj1 eXpectedreceivingRDI typeUnused tribs sentcouNters

SDH/SONET port LAN port [no]Stateauto-NegotiationFlow controlMDI/MDIXmaC addressfcs GenerationmaX frame sizegfp paylOad fcsAllocationLCASmax diff delaYRDI typeJ2 transmitj2 eXpectedlIst allocationcounTers

Main set-up menu

set- p toolsUUser interfaceRemote unit set-up

User interface (Simple)set-up wiZardRemote unit set-up

(Advanced) Remote Unit Set-up Get config Put config

Set-up wizardLAN portsE1/T1 portsE1/T1 interfaceConfigure unit

Figure 5.1 MetroLAN1000 menu structure


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The MetroLAN 2000 differs from the MetroLAN1000 in that there is no Simple set-up option with a wizard. It also includes a DS3/E3 triple port option. The DS3/E3 option is described in this section and is included on menu screens, but the user should note that ay references to DS3/E3 will only appear on a MetroLAN2000 product, and not on a MetrLAN1000 unit.

Global status Display

Alarm extension Clear alarm outputs

SDH portVCLAN portE1/T1 portDS3/E3 port

Data port set-up

Ethernet, IP, UDP, tCp, sNmp, tFtp, [Menus]Telnet,

Ping [Display]

Terminal type, via Baud rate, Parity, Data bits, Stop bits, Load new config

Modem , V.24 set-upV.24 set-up

Management

Interface, Display mode, Summary stylePhysical layer stats, Error type, HDLC layer statsClear all data

Performance data

None, Local loop

SDHTesting

SystemTime, Date, Node name, Password, Software version,Output config, Input config,Warm start, Cold start, Sub-product number, Event logs [Menu]

Main set-up menu

E1/T1 port [A-H]StateInterfaceRx sensitivityAllocationRDI typeJ2 transmitj2 eXpectedList allocationcouNters

Type of fibreTimingC1/J0 selectionJ0 transmitj0 eXpected receivingE1 valueDeg det threshpaYloadPath signal labelreceivingj1 transmitj1 eXpectedreceivingRDI typeUnused tribs sentcouNters

SDH/SONET port LAN port [no]Stateauto-NegotiationFlow controlMDI/MDIXmaC addressfcs GenerationmaX frame sizegfp paylOad fcsAllocationLCASmax diff delaYRDI typeJ2 transmitj2 eXpectedlIst allocationcounTers

StateInterfaceRx sensitivityAllocationRDI typeJ1transmitj1 eXpectedList allocationcouNters

E1/T1 (A-H)

None, Local loop None, Local loop

E1/T1 (A-H) DS3/E3 J,K,L

Figure 5.2 MetroLAN2000 menu structure

Note: When interacting with menus, pressing the <escape> key on any screen will return you to the previous screen in the structure.


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5.2 Mapping

The SDH Next Generation development provides an encapsulation method that can accommodate any data packet protocols and also exploits the SDH bandwidth efficiently.The SDH port on a MetroLAN product can be configured as up to 63x VC-12 or 3x VC-3 in accordance with the table below.

Figure 5.3 Virtual Containers supported by MetroLAN

5 .2.1 VC-4

Whilst VC-4 mode can be selected via software this is not a valid operating mode.

5 .2.2 VC-3

The payload from up to 3 sources (such as a LAN port or E3/DS-3 ports) may be mapped into a VC-3. E1/T1 payloads may not be used

5 .2.3 VC-12

The payloads from any E1/T1 ports and any LAN ports may be mapped into VC-12’s for transport.

Note: Payload mappings may be mixed at the TUG-3 level (see schematic over page). Each of the 3 TUG-3’s may be independently mapped to either VC-3 or VC-12 mappings.

SDH Bandwidth Kbps

Payload Kbps

Max channels

VC - 3 48960 48384 3

VC - 12 2240 2176 63

STM-1OC-3 / STS-3155 Mbps

AUG-1STS-3

X 1

AU-4STS - 3c

X1

TUG-2VT-Group

X 7

X 3

TU-12VT-2

VC-12VT-2 SPE

C-12

SDH CONTAINER

LAN E1/T1

VC-4

STS-3c SPE

TUG-3

X3

SDH CONTAINER

TU-3

X1

VC-3

C-3

LAN E3/DS-3


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Figure 5.4 MetroLAN mapping schematic


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5.3 Main Set-up Menu

Figure 5.5 Main set-up menu

When the unit has been powered up and the login procedure has been carried out, the MetroLAN MAIN MENU screen appears on the Management Console, as shown in the figure above. Note that the frist menu option set-Up tools appears only on the MetroLAN1000 product.

The Main menu gives access to a range of menus that permit the set-up and configuration of the MetroLAN. This section describes the overall menu structure of the MetroLAN and is intended for the advanced user, who will also proceed to Section 7 for Advanced Data Port set-up procedures. The detailed DATA PORT SET-UP menus which may be required by advanced system users are best described in a separate section.

Note that the set-Up tools menu option provides access to the SET-UP WIZARD that provides a simple way to make an initial configuration of the MetroLAN. Section 6 describes the use of the Wizard for simple configurations of MetroLAN1000 units on dark fibre.

Other facilities such as Performance monitoring, Management and Testing are accessible from the MAIN SET-UP menu and are described in later sections of this manual.

MAIN SET-UP

set-Up tools <menu>




V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>





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5.4 Accessing the Wizard to configure the MetroLAN1000

Select the first option on the main menu screen set-Up tools by pressing or on the keyboard. The SET-UP TOOLS menu is then displayed. Select the item User Interface and toggle with the space bar to select SIMPLE. This causes the item set-Up wizard to be displayed. Press <z> to select the SET-UP WIZARD menu, as shown below.

Note that if the item User Interface is set to ADVANCED, the Wizard option is not displayed, and you will be able to configure the system using the methods described in section 7 of this manual.

Figure 5.6 Set-up tools menu

Figure 5.7 Set-up wizard screen

You may use the SET-UP WIZARD screen to instruct the wizard to set-up a simple configuration. This is described in section 6 of this manual in a self contained section intended for new users or for those users who require a simple configuration of the MetroLAN unit.

SET-UP TOOLS SET-UP TOOLS

User interface Simple User interface Advanced

set-up wiZard <menu> Remote unit set-up <menu>

Remote unit set-up <menu>



SET-UP WIZARD

LAN ports 2

E1/T1 ports 1

E1/T1 interface E1

Configure unit




31 76-02-059D

5.5 Configuring the remote unit

Once the local MetroLAN has been configured there are two options for configuring the remote unit. Press <r> to select the REMOTE UNIT SET-UP screen, as shown below

Figure 5.8 Remote set-up menu screen

You must then press either <g> or to select the Get or Put option in accordance with the following rules:

5 . 5. 1 Get Config

If a MetroLAN has been installed and configured and a unit is then installed at a remote location, you must use the Get config option.Press <g> on your keyboard to select the Get config option. The MetroLAN will fetch the new configuration and reboot the remote unit, after which it will be operational.

5 . 5. 2 Put Config

If the local MetroLAN has been powered up and connected to the fibre interface, then after configuring the local unit, you must use the Put config option to send the configuration to the unconfigured remote unit.

Press on your keyboard to select the Put config option. The remote MetrolAN will receive the new configuration and reboot itself, after which it will be operational.

REMOTE UNIT SET-UP

Get config 2

Put config 1


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5.6 Configuring MetroLAN units remotely

To access the MetroLAN from a remote location via an Ethernet connection, the Management Port on the rear panel (labelled MAN PORT) must be connected to a 10BaseT LAN. The port is presented on an RJ45 connector for direct connection to a switch. The port is fixed for operation at 10Mbps, Half duplex.

5 . 6. 1 Setting the Unit IP Address

From the MAIN SET-UP menu, select the Management menu item and then select the Ethernet menu.

Figure 5.9 Main set-up & Management screen menusI

Figure 5.10 Ethernet screen menu

In order to set, or change, the IP address the LAN port state must first be set to DOWN.

Configure the IP address using the format AA.BB.CC.DD

Configure the Network Mask, if not Class C

Activate the LAN port by changing the state to UP

MAIN SET-UP MANAGEMENT

set-Up tools <menu> Ethernet <menu>

Global status <display> Data-link

alarm eXtension <menu> IP <menu>

Data port set-up <menu> UDP <menu>

V.24 set-up <menu> tCp <menu>

Management <menu> sNmp <menu>

System <menu> Telnet <display>

Testing <menu> tFtp <menu>


ETHERNET

State Up

Phys. address 0:c0:81:0:5:da

DHCP On

IP address 0.0.0.0.

Network mask 0.0.0.0.

Broadcast address from bit 1

AT table <display>

sTats <display>


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5 . 6. 2 Setting a default Route

From the MAIN SET-UP menu, select Management and then the IP menu, and then select the ROUTING TABLE.

Figure 5.11 IP screen menu

Figure 5.12 New Route screen menu

To add a new entry as the default route proceed as follows:

Destination 0.0.0.0Mask 0.0.0.0Interface Select Ethernet interface Next Hop IP Address of Next Hop Router

IP ROUTING TABLE

default TTL <menu> 1-255.255.255.255. <menu>

Max reassy time <menu> List routes <display>

Routing table <menu> New route <menu>

Forwarding <menu>

Stats <menu>

NEW ROUTE

Destination 0.0.0.0.

Mask 0.0.0.0.

Next hop x.x.x.x.

Interface Ethernet

Activate


34 76-02-059D

5.7 Alarm extension

Selecting the menu item ALARM EXTENSION on the MAIN SET-UP menu leads to a further menu.Note that the menu item DS3/E3 port appears only on MetroLAN2000 models.

Figure 5.13 Alarm extension screen

5 .7.1 Clear Alarm Outputs

If the MetroLAN has detected a major or minor alarm condition the alarm extension is activated. The alarm extension device may be muted by selecting CLEAR ALARM OUTPUTS. When this option is selected the alarm extension status (prior to the clear command) is shown below the menu.

Figure 5.14 Alarm status screen

Note: If the alarm extension has been cancelled with the CLEAR ALARM OUTPUTS option, the alarm is still indicated on the front panel indicator lights and in the performance statistics.

ALARM EXTENSION

clear Alarm outputs <display>

SDH port <menu>

VC <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>



Alarms cleared>FERF alarmPress any key to continue


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5 .7.2 SDH port alarm menu

The SDH PORT option shown below provides a display of all the alarms which are valid for the MetroLAN. The alarms are labelled from 0 to 9 and A to Z in the firmware, and can be selected by their label. Note that even if the alarm extension menu item is set to NONE, the performance reports described in Section 6 will continue to count alarms.

Figure 5.15 SDH Port alarm config

Note: Toggling the space bar permits the alarm to be configured by the user to MAJOR, MINOR or NONE. This affects which alarm extension relay is affected by an alarm. The configuration rules are:

Figure 5.16 Alarm relay config

To reset the status of any alarm, select it by the number shown on the menu screen. It can be set as MAJOR, MINOR or NONE by toggling with the space bar through the options displayed.

Figure 5.17 Alarm relay options

SDH PORT

0 - LOS Major

1 - LOF Major

2 - LOC Minor

3 - AIS Minor

4 - FERF Minor

5 - SD Major

6 - OOF Major

7 - TIM Minor



MAJOR major relay

MINOR minor relay

NONE no relay

<space> - change value

<enter> - save new value

<escape> exit without saving


36 76-02-059D

5 .7.3 VC

When the item VC is selected from the ALARM EXTENSION menu, the user is requested to enter the VC klm number to select the VC required. The system responds with a list of VC alarms for that VC (KLM). Section 5.4.2 above describes how to change alarm states.

Figure 5.18 VC port selection

Figure 5.19 VC alarms

Note: When the VC port is being selected, the following actions are required:

VC4 is selected by pressing <enter> (NB This is an invalid operating mode)VC3 is selected by pressing 1,2 or 3 <enter>VC12 is selected by pressing klm <enter>

ALARM EXTENSION


SDH port <menu>

VC <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>

Enter VCnumber (klm)

>

VC111

0 - LOP Major

1 - UNEQ Major

2 - PLM Major

4 - RDI Minor

5 - SD Major

6 - RFI Major

7 - TIM None

9 - CAIS Minor

A - LOM Minor


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5 .7.4 LAN port alarms

Each LAN port is numbered and is selected by number when the LAN port menu is activated.

Figure 5.20 LAN port selection

Figure 5.21 LAN port alarm

The LINKDOWN alarm is the only one applicable to the LAN ports. It can be set as MAJOR,MINOR or NONE by selecting the alarm number and toggling with the space bar through the options.


ALARM EXTENSION


SDH port <menu>

VC <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>

Enter port number (1-8)

>

LAN PORT 3

0 - LKDN Major





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5 .7.5 E1/T1 port alarms

Each of the 8 E1/T1 ports is identified by letter (A-H) and is selected by typing the required letter when the menu is activated.

Figure 5.23 E1/T1 port selection

Figure 5.24 E1/T1 port alarms

The LOS and AIS alarms are applicable to the E1/T1 ports. They can be set as MAJOR,MINOR or NONE by selecting the alarm number and toggling with the space bar through the options.


ALARM EXTENSION


SDH port <menu>

VC <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>

Enter port name (A-H)

>

E1/T1 PORT C

0 - LOS Major

3 - AIS Minor





39 76-02-059D

5 .7.6 DS3/E3 port alarms (MetroLAN2000 only)

Each of the 3 DS3/E3 ports is identified by letter J,K or L and is selected by typing the required letter when the menu is activated.

Figure 5.26 E1/T1 port selection

Figure 5.27 Ds3/E3 port alarms

The LOS and AIS alarms are applicable to the DS3/E3ports. They can be set as MAJOR,MINOR or NONE by selecting the alarm number and toggling with the space bar through the options.


ALARM EXTENSION


SDH port <menu>

VC <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>

Enter port name (J-L)

>

DS3/E3 PORT K

0 - LOS Major

3 - AIS Minor





40 76-02-059D

5.8 Data port set-up menus

The Data port set-up menus for advanced users are described fully in Section 7 of this manual.

5.9 V.24 set-up menu

The V.24 SET-UP screen allows you to set up the communications parameters for the terminal attached to the management port.

Figure 5.29 V.24 Terminal set-up menu

5 .9.1 Terminal type

The terminal type can be ANSI, VT100/VT220 or TTY.

The ANSI and VT100/VT220 options give you a graphical presentation of the menus, whereas TTY is used where a dumb terminal device such as a Teletype is used for configuration and data presentation. Note that ANSI and VT100/220 terminals also highlight the menu select letter.

The screen displays for these terminal types are shown in Section 4.

5 .9.2 Via Modem

This option specifies whether a modem is to be used or not. This default is NO.

Modem support causes you to be logged-out if the Ready-to-send (RTS) signal is dropped on the terminal port. The RTS line needs to be driven for V.24 operation if modem support is on, so we recommend using a fully configured 25-way cable.

5 .9.3 Baud rate

The baud rates supported are 2400, 4800, 9600 and 19200 baud. The default setting is 19200 baud.

V.24 SET-UP

Terminal type VT100/VT220

via Modem yes

Baud rate 9600bps

Parity None

Data bits 8

Stop bits 2

Load new config




41 76-02-059D

5 .9.4 Parity

Parity may be set to NONE, ODD or EVEN.

5 .9.5 Data bits

The number of data bits may be 7 or 8.

5 .9.6 Stop bits

The number of stop bits may be 1 or 2.

5 .9.7 Load new config

Except for the terminal type, the changes you make on the V.24 Set-up screen do not take effect until you register the changes in the MetroLAN. To do this, select LOAD NEW CONFIGafter you have made the necessary changes to the other values on this screen. You should then change your terminal settings to match these values.


42 76-02-059D

5.10 Management

In addition to using the terminal port, the MetroLAN may be managed remotely by using a LAN-based network management system. In order to do this a LAN must be connected to the Management port.

The operating parameters, event log, performance statistics database and diagnostics functions are known collectively as the Management Information Base (MIB). The MetroLAN MIB can be accessed remotely by using a Network Management System (NMS) connected to the LAN. The NMS should use SNMP (Simple Network Management Protocol), and could be located on the local LAN or on a remote LAN connected to the local LAN via a LAN bridge or IP router.

The MIB definitions supported have been placed in the public domain by Metrodata and can be parsed in to any NMS supporting an ASN.1 MIB parser. For further information on the management interface and the MIB definition, please refer to the LM1100 SNMP Enabler user manual. The information given in this section is a brief summary to serve as an introduction to the subject.

5 .10.1 Management menu

The LM1100 SNMP Enabler is fitted as standard to the MetroLAN, and the MAIN SET-UP menu contains the option MANAGEMENT.


The MANAGEMENT menu leads to a series of menus which permit you to configure the various system management protocols and parameters. Only the utility options Telnet, TFTP and PING are described below. For the other options, please refer to the Metrodata LM1100 manual.

MAIN SET-UP

set-Up tools <menu>




V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>





43 76-02-059D

Figure 5.31 Management menu

5 .10.2 Telnet Option

The Telnet option permits a Telnet session to be established between the local MetroLAN and a remote unit.

.

Figure 5.32 Telnet screens

MANAGEMENT

Ethernet <menu>

Data-link

IP <menu>

UDP <menu>

tCp <menu>

sNmp <menu>

Telnet <display>

tFtp <menu>

Ping <display>



TELNET

telnet Client <display>

Timeout 60

Metrodata MetroLAN: Local connection to “[nodename]”

Telnet>


44 76-02-059D

The following Telnet commands are available on MetroLAN and are displayed in response to the <help> command. Note that the MetroLAN does not use DNS facilities and therefore that the IP Address of the device to be called must be used.

Figure 5.33 Telnet commands

5 .10. 3 TFTP

TFTP is used to upload or download software or config files from the device to or from a server (CLIENT mode) or to permit remote devices to acquire files from the device (SERVERmode). The remote server or device is identified by its REMOTE IP address, which is typed into a menu box after the menu item is selected.

Figure 5.34 TFTP menu screens

The two modes of TFTP operation are as follows:

a) In SERVER mode the device awaits GET or PUT action from other remote devices. The menu items SOFTWARE FILE NAME or CONFIG FILE NAME specify the files which can be transferred. Note that Software may only be uploaded into the local device, whilst Config files can be transferred in either direction.

b) In CLIENT mode, Config files may be downloaded from the server (GET), or may be uploaded to the server (PUT). Note that Software may only be uploaded (GET) into the local

Command Action

open Open a connection to an IP address

close Close a connection

abort Abandon a connection without waiting for confirmation from the called service

status Give a status report of the telnet session

quit Leave telnet

help Print help screen.

<control> ] or type quit

Escape to command mode

TFTP TFTP

Mode Server Mode Client

remote IP 192.168.1.10 remote IP 192.168.1.10

Software file name MetroLAN.45 Get new software

Config file name MetroLAN.cnf get Config

Put config

Enter file name>


45 76-02-059D

device, whilst Config files can be transferred in either direction. The system requests a file name in response to selection of a GET or PUT action from the menu.

5 .10. 4 Ping

PING is used to check that a selected device is responding on the network by sending a PING packet to its IP address, and receiving an acknowledgement if the connection is successful. When PING is selected from the screen, the following dialogue occurs if the connection is successful. If it is not, the screen message is NO RESPONSE.

Figure 5.35 Ping screen

Enter file name, then wait>

Metrodata MetroLAN: Local connection to “MetroLAN“Destination: [192.168.1.10]press any key to stop testokayokay


46 76-02-059D

5.11 System menu

Figure 5.36 System menu

When you select Time, you will be prompted to enter the current time in the format hh:mm:ss. Note that this format uses the 24-hour clock. For example:

Figure 5.37 Time prompt

5 .11.1 Date

Enter the current date in the format dd/mm/yyyyy. For example, April 4th 2001 would be entered as 4/4/2001. The corresponding day of the week is also displayed when you press <enter>. Leading zeros are suppressed by the date display.

Figure 5.38 Date prompt

The year is entered as an explicit 4 digit number (e.g. 2004), and processed as such in the firmware. Dates between 01/01/1980 and 31/12/2047 are valid.

SYSTEM

Time 16:24:32

Date Mon 2/4/05

Node name “[nodename]”

Password ********

Software version 5.0

Output config <display>

Input config

Warm start

Cold start

Sub-product no. 0

Event logs <menu>



Enter time (hh:mm:ss)> 14:30:00

Enter date “[dd/mm/yyyy]”> 4/7/2003


47 76-02-059D

5 .11.2 Node name

This is the name of the unit to which you are currently connected. The top of the screen indicates the current node by displaying

Local connection to "[nodename]"

At the ENTER NEW NAME prompt, you can enter the name you wish to give this node. The name may be up to 16 characters with no spaces permitted.

Figure 5.39 Enter new name

5 .11.3 Password

This option is used to change the current password. The supervisory password, which allows you to change settings, is initially set to the model number, i.e. MetroLAN. If you wish to change the password, select this item and then enter the new password.

The password may be up to 16 characters with no spaces permitted.

The password is not case-sensitive, which means that if you enter the password as upper case letters, the unit will accept either upper or lower case, or a mixture of both, when you next log on.

Figure 5.40 Password prompt

For security, the characters you type are displayed on the screen as asterisks. You will also be asked to re-enter the password as a check.

5 .11.4 Software version

This display item shows the version number of software installed on the MetroLAN.

5 .11.5 Output config

This item facilitates the outputting of config information to an intelligent terminal or PC connected to the MetroLAN’s terminal port and set up with a terminal emulator such as Hyperterm. When OUTPUT CONFIG is selected from the menu screen, the following message appears:

Figure 5.41 Output config screen response

Enter new name>

Enter new passwordPassword> ********Verify>

Metrodata LA1000: local connection to “[nodename]” Alarms: None

Start capture then press a key

After transfer, stop capture then press another key.


48 76-02-059D

The Hyperterm path TRANSFER / CAPTURE TEXT is selected, and when a key is pressed, transfer of configuration data takes place into a nominated file. Note that the file is a .TXT text file. As soon as the transfer is complete, the Hyperterm DISCONNECT button should be pressed to avoid capturing unwanted messages. A typical config file is shown below:

Figure 5.42 Metrodata Configuration dump file

5 .11.6 Input config

This item facilitates uploading of config information from a stored Text file into a MetroLAN. It also requires the use of a PC as an intelligent Management terminal connected to the unit’s terminal port. When INPUT CONFIG is selected from the menu screen, the following message appears:

Send text file. Esc to end

Figure 5.43 Input config message screen

The Hyperterm path TRANSFER / SEND TEXT FILE is selected, together with the file containing the config information. When a key is pressed, transfer of configuration data takes place from a nominated file into the MetroLAN’s memory.

e.0.c=1 e.0.f=1

e.0.t=1 e.0.b=1 e.0.j=1

e.0.o=1 e.0.xa=8652 e.0.xi=49715

e.0.xt=58367 e.0.q=65536 e.1.c=1

e.1.l=1 e.1.f=5 e.1.t=1

e.1.j=1 e.1.xa=8652 e.1.xi=49715

e.1.xt=58367 e.1.q=65536 a.0.m=-1

a.0.a=1 a.0.h=2 a.0.c=1

a.0.p=1 a.0.s=28 a.1.m=-1

a.1.a=1 a.1.h=2 a.1.c=1

a.1.s=28 v.b=3 v.w=LA1000

v.a=31 v.r=2 v.e=1

g.n=egham3k g.t=60 p.0.e=3

p.0.d=1 p.0.i=5 p.0.v=1

p.1.i=5 p.2.i=5 n.0.a=1

n.0.p=0.192.129.0.1.255 n.0.n=255.255.255.0 n.0.b=1

n.1.n=255.255.255.0 n.1.b=1 n.1.t=1

n.2.b=1 n.2.t=2 n.2.f=255.255.255.255

i.t=32 s.up=161 s.ut=162

s.sc=public s.sw=public s.st=public

s.sm=255.255.255.255 s.ts=software s.tc=config


49 76-02-059D

5 .11.7 Warm start

Selecting WARM START simulates turning the mains power off then on again. This may be necessary if a network component hangs up. A warm start does not adversely affect the MetroLAN's configuration parameters, performance statistics database or event log.

5 .11.8 Cold start (Caution!)

Selecting COLD START returns the MetroLAN's software configuration to the default settings. All configuration parameters will be reset to their defaults, and the performance statistics database and event log will be cleared. The “[nodename]” will be erased, but the real-time clock will not be affected.

For security, you will be asked to confirm this request. Pressing Y will perform the cold start, pressing any other key will cancel the request.

Note: This option should only be selected when absolutely necessary, since it may cause disruption to the network.

Operational reasons for needing to COLD START include real time clock problems when the RTC must be reset; a change of firmware version number in the MetroLAN owing to carrying out an upgrade; an invalid configuration, probably caused by corruption of the MetroLAN RAM.The management terminal may need to be reset to default settings before you can communicate with the MetroLAN after a cold start. Section 5 shows the MetroLAN's default settings.


50 76-02-059D

5 .11.9 Event Logs

Event logs are intended to provide a long-term history of major occurrences on the system. They can be the first port of call for a network manager when investigating a problem, and serve to confirm the status of the MetroLAN at any point in time from the last cold start. If a cold start is performed, this log will be cleared and the first entry in the log will be the date and time of that cold start.

The logs are all accessed from the SPECIAL menu. The logs record the most recent events at the top of the screen, with events sorted into backwards order of time. The log is divided into three separate logs on separate screens: SYSTEM EVENT LOG, ALARM EVENT LOG and CONFIG EVENT LOG.

The SYSTEM EVENT LOG records system level events

Figure 5.44 System event log

Note: If the system event log contains either the message SPURIOUS RESET or ILLEGAL INTERRUPT, please register this occurrence with your Supplier or Distributor of the product.

The ALARM EVENT LOG records alarms that have arisen since the last cold start. They are recorded simply as MAJOR or MINOR alarms with ON or OFF status.

Figure 5.45 Alarm event log

--- System Event Log ---

16/8/99 23:27:35 power restored

16/8/99 23:19:07 illegal interrupt

15/8/99 00:09:33 power restored

15/8/99 00:09:28 power-down

Press any key to continue

--- Alarm Event Log ---

17/2/2001 08:20:23 Major ON POS

16/2/2001 13:21:00 Minor OFF POS

16/2/2001 12:52:38 Minor ON POS



51 76-02-059D

The CONFIG EVENT LOG records any configuration changes on the system. This can be very useful since configuration actions may have been taken remotely, without the knowledge of the local user of a node

Figure 5.46 Config event log

5.12 Testing menu

This option gives you access to the MetroLAN’s diagnostic functions, which are explained in detail in Section 9, Test & Troubleshooting.

Figure 5.47 Testing menu

5.13 Performance data

The subject is described in section 7 of this manual.

--- Config Event Log ---

16/7/2001 08:20:23 Config updated

16/5/2001 13:21:00 Config updated

14/5/2001 11:32:38 Config updated


TESTING

SDH Local loop

E1/T1 A None

E1/T1 B None

E1/T1 C Local loop

E1/T1 D None

E1/T1 E None

E1/T1 F None

E1/T1 G None

E1/T1 H None

E3/DS3 J None

E3/DS3 K None

E3/DS3 L None



<escape> - exit without saving


52 76-02-059D

QUICK START METROLAN1000 USING THE WIZARD

53 76-02-059D

6 QUICK START METROLAN1000 USING THE WIZARD

There are two methods available for setting-up the Dataports: Simple and Advanced. The method required is selected from the SET-UP TOOLS menu as shown below. The Simple method uses the Wizard, whilst the Advanced method is for users who wish to implement a custom set-up. Note that the Wizard is only available on MetroLAN 1000 units and does not appear as an option if you have selected ADVANCED set-up.


Figure 6.2 Simple and Advanced menu screens

Since there is one SDH port, this does not have to be specified if using dark fibre.

The LAN set-up process is auto-negotiating and therefore configuration is automatic.

The User has simply to specify the number of LAN and number and type of E1/T1 ports to configure.

MAIN SET-UP

set-Up tools <menu>




V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>









54 76-02-059D

6.1 Using the Wizard.

Figure 6.3 Set-up Wizard screen

The procedure for using the SET-UP WIZARD is described below

6 .1. 1 Select the number of LAN ports

The number of LAN ports to be used can range from 0 to 8. Set the number that you wish to configure by typing <L> to select the LAN ports option. Then toggle the space bar on your keyboard to reach the number that you require e.g. 0,1,2,3......When you have selected the right number, press the <enter> key to accept.

6 .1. 2 Select the number of E1/T1 ports

The number of E1/T1 ports to be used can range from 0 to 8. Set the number that you wish to configure by typing <e> to select the E1/T1 PORTS option. Then toggle the space bar on your keyboard to reach the number that you require e.g. 0,1,2,3......When you have selected the right number, press the <enter> key to accept.

6 .1. 3 Select E1/T1 interface type

Set the E1 or T1 interface that you wish to configure by pressing to select the E1/T1 PORTS option. Then toggle the space bar on your keyboard to either E1 or T1 When you have selected the right option, press the <enter> key to accept.

6 .1. 4 Configuring the unit

When the required number of LAN and E1/T1 ports have been selected, you must ask the wizard to configure the MetroLAN. press <c> to configure the unit. This will lead to the response:

Press <y> to confirm the action, and the unit will configure itself with your chosen configuration.

SET-UP WIZARD

LAN ports 2

E1/T1 ports 1

E1/T1 interface E1

Configure unit



Configuration will be over written

Are you sure?


55 76-02-059D

6.2 Configuring units remotely

Once the local MetroLAN has been configured, return to the SET-UP TOOLS menu press <r> to select the REMOTE UNIT SET-UP screen, as shown below.

Figure 6.4 Set-up tools menu screen

Figure 6.5 Remote set-up menu screen

You must then press either <g> or to select the Get or Put option in accordance with the following rules:

6 . 2. 1 Get Config

If the local MetroLAN needs to be installed and configured using the wizard after the remote unit has been installed, you must use the Get config option. An example of the use of Get config is when a local unit has become faulty and is replaced by a new unit. Get config is then used to download the remote unit’s set-up to the local unit.

Press <g> on your keyboard to select the Get config option. The MetroLAN will fetch the new configuration and reboot the remote unit, after which it will be operational.

6 . 2. 2 Put Config

If the local MetroLAN has been powered up and connected to the fibre interface, then after configuring the local unit with the Wizard, you must use the Put config option to send the configuration to the remote unit.

Press on your keyboard to select the Put config option. The remote MetrolAN will receive the new configuration and reboot itself, after which it will be operational.

SET-UP TOOLS

User interface Simple

set-up wiZard <menu>


REMOTE UNIT SET-UP

Get config 2

Put config 1


56 76-02-059D

6.3 Configuring MetroLAN units from a remote location

To access the MetroLAN from a remote location via an Ethernet connection, the Management Port on the rear panel (labelled MAN PORT) must be connected to a 10BaseT LAN. The port is presented on an RJ45 connector for direct connection to a switch. The port is fixed for operation at 10Mbps, Half duplex.

6 . 3. 1 Setting the Unit IP Address

From the MAIN SET-UP menu, select the Management menu item and then select the Ethernet menu.

Figure 6.6 Main set-up & Management screen menus

I

Figure 6.7 Ethernet screen menu

In order to set, or change, the IP address the LAN port state must first be set to DOWN.

Configure the IP address using the format AA.BB.CC.DD

Configure the Network Mask, if not Class C

Activate the LAN port by changing the state to UP

MAIN SET-UP MANAGEMENT

Global status <display> Ethernet <menu>

alarm eXtension <menu> Data-link

Data port set-up <menu> IP <menu>

V.24 set-up <menu> UDP <menu>

Management <menu> tCp <menu>

System <menu> sNmp <menu>

Testing <menu> Telnet <display>

Performance data <menu> tFtp <menu>

ETHERNET

State Up

Phys. address 0:c0:81:0:5:da

DHCP On

IP address 0.0.0.0.

Network mask 0.0.0.0.

Broadcast address from bit 1

AT table <display>

sTats <display>


57 76-02-059D

6 .3. 2 Setting a default Route

From the MAIN SET-UP menu, select Management and then the IP menu, and then select the ROUTING TABLE.

Figure 6.8 IP screen menu

Figure 6.9 New Route screen menu

To add a new entry as the default route proceed as follows:

Destination 0.0.0.0Mask 0.0.0.0Interface Select Ethernet interface Next Hop IP Address of Next Hop Router

IP ROUTING TABLE

default TTL <menu> 1-255.255.255.255. <menu>

Max reassy time <menu> List routes <display>

Routing table <menu> New route <menu>

Forwarding <menu>

Stats <menu>

NEW ROUTE

Destination 0.0.0.0.

Mask 0.0.0.0.

Next hop x.x.x.x.

Interface Ethernet

Activate


58 76-02-059D

ADVANCED DATA PORT SET-UP MENUS

59 76-02-059D

7 ADVANCED DATA PORT SET-UP MENUS

The screens below show the path to be taken to select a LAN port or an E1/T1 port for configuration. Since there is only one SDH port, the menu goes directly to the SDH config screen without the need to identify the port. Note that LAN ports are numbered, whilst E1/T1 and E3/DS3 ports (MetroLAN 2000) are named by letters.Not that the set-Up tools menu item appears only on MetroLAN1000 products.


From the MAIN SET-UP menu, select set Up tools and then the User interface option. Toggle the option to Advanced and you will see the screen on the right below.

Figure 7.2 Simple and Advanced menu screens

Next, press <escape> to return to the MAIN MENU and press <d> to view the DATAPORT SET-UP screen that you will use to configure the MetroLAN unit.

Figure 7.3 Dataport set-up menu

MAIN SET-UP

set-Up tools <menu>




V.24 set-up <menu>

Management <menu>

System <menu>

Testing <menu>






DATA PORT SET-UP

SDH port <menu>

LAN port <menu>

E1/T1 port <menu>

DS3/E3 port <menu>


60 76-02-059D

press <S> or <L> or <E> or <D> to select the port type that you wish to configure. The SDH option responds directly with the SDH /SONET PORT menu. The other 3 port types respond with a screen requesting the port number/letter to select the port to be configured.

Figure 7.4 Select LAN port by number

Figure 7.5 Select E1/T1 port or DS3/E3 port by letter

Following sub-sections of this manual describe the configuration process for each port type.

Enter port number (1-8) Enter port number (1-3)

> >

Enter port name (A-H)) Enter port name (J-L))

> >


61 76-02-059D

7.1 SDH port set-up

When the SDH port has been selected for set-up, a two page menu screen is available to the user as shown below. Page change is done by pressing > or < as shown on the message screens below.

Figure 7.6 SDH port set-up menu screens 1 & 2

SDH/SONET PORT

Framing SDH

Type of fibre SM short-haul

Timing Loop

C1/J0 selection C1

E1 value 00

sD thresholds <menu>

paYload <menu>-

Path signal label Auto

receiving 02 (TUG structure)

j1 transmit “ “

j1 eXpected “ “

receiving “ “


> - next page


SDH/SONET PORT

RDI type 1 - bit

Unused tribs send Unequipped

couNters <display>


< - previous page



62 76-02-059D

The definitions of the menu items are given below.

7 .1. 1 Type of fibre

The port establishes and displays the type of fibre transceiver that is fitted to the MetroLAN.

7 .1. 2 Timing

This item is either LOOP or INTERNAL LOOP timing uses the Receive timing as the source for the Transmit timing. INTERNAL timing uses the local oscillator.

7 .1. 3 C1/J0 selection

This item is either C1 or J0. C1 is the C1 overhead byte applicable to early SDH implementations. It is a fixed value and should be set to 1.J0 is a later implementation of G.707 which enables the user to put a label or address on the interface to permit easy checking that link connections are correct. This is explained immediately below.

7 .1. 4 J0 transmit/J0 expected & receiving

The J0 TRANSMIT function permits a label to be placed onto a transmission. This is usually an alphanumeric string of some kind that identifies a port to which traffic is being transmitted. The J0 EXPECTED function permits a label to be specified for incoming traffic. The next menu item is RECEIVING, which displays the actual incoming J0 label. Comparison of the expected and receiving labels indicates whether there is a transmission problem. If the labels are different, a J0 alarm will be raised.

Figure 7.7 J0 string entry

J0 mismatch processing will not occur unless a string is entered in the J0 EXPECTED item.

7 .1. 5 E1 value

E1 VALUE is a hexadecimal number which is entered into the system. The E1 Value defines the “E1 order wire” which is an overhead byte for a voice connection between two SDH units for Engineers to use when commissioning or testing. The E1 Orderwire is not supported by MetroLAN and a hex value is set to suitable values for reducing noise on the connection in cases where the far end does support E1 Orderwire.

Figure 7.8 E1 hex entry

Enter string

>

Enter hex value

>


63 76-02-059D

7 .1. 6 Degrade detection threshold (sD thresholds)

This item sets the threshold of BIP errors encountered. The range of permissible errors can be set in steps of 1 in 10-x to be from 1 in 10-3 to 1 in 10-8. Above this threshold a Signal Degrade (SD) alarm will be raised. when the menu item is selected, the screen below appears

Figure 7.9 SD Thresholds set-up screen

7 .1. 7 Payload

Figure 7.10 Payload menu

The main payload may be selected as AU4/VC-4* or as AU4/TUG-3. If TUG-3 is selected then a further configuration is required for each TUG-3 to be either VC-3 or VC-12.

* NB AU4/VC-4 is not a valid operating mode

SD THRESHOLDS

SDH section, vc-4 10 ^ - 6

vc - 3 10 ^ - 6

vc - 12 10 ^- 6




PAYLOAD

Main payload AU-4/TUG-3

TUG - 3 # 1 VC-12

TUG - 3 # 2 VC-3

TUG - 3 # 3 VC-3

List allocation <display>




64 76-02-059D

Figure 7.11 Bandwidth Allocation

7 .1. 8 Path signal label

The PATH SIGNAL LABEL is a hex value which can be set to 0 (zero) for AUTO operation, or to a hex value for a particular reason. With Auto operation, the C2 byte of the frame is received from the far end and then set to the same value. Initially, when set to AUTO, the C2 byte will default to 02 (TUG structure). However, on receipt of a valid C2 byte it will change and match the received value. AUTO may be used to reduce path label mismatch errors. Setting C2 manually must be done with care, since an incorrect C2 will prevent correct operation.

7 .1. 9 J1 transmit/ J1 expected & receiving

J1 is a 16 byte label that applies to VC-4 channels. The J1 TRANSMIT function permits a label to be placed onto a transmission. This is usually an alphanumeric string of some kind that identifies a port to which traffic is being transmitted.

The J1 EXPECTED function permits a label to be specified for incoming traffic. The next menu item is RECEIVING, which displays the actual incoming J1 label. Comparison of the expected and receiving labels indicates whether there is a transmission problem. If the labels are different, a J1 alarm will be raised. Mismatch processing is only enabled if a valid J1 EXPECTED string is entered.

Metrodata MetroLAN: Local connection to " "

BANDWIDTH ALLOCATION

TUG - 3 #1

VC-12 111 - 113 121-123 131 -133 141 - 143 151 - 153 161 - 163 171 - 173

- - - - - - -

- - - - - - -

TUG - 3 #2

VC - 3 -

TUG - 3 #3

VC-3 -


65 76-02-059D

7 .1. 10 RDI type

The RDI (Remote Defect Indicator) is toggled between its two modes 1-BIT and 3 - BIT

Figure 7.12 RDI type

7 .1. 11 Unused tribs sent

This toggled item offers the options AIS or UNEQUIPPED. This menu item defines what is transmitted on tributaries which are not physically allocated.

7 .1. 12 Counters

CouNters is a display option that lists path counters as shown below

Figure 7.13 SDH Path Counters display

SDH/SONET PORT

RDI type 1 - bit

Unused tribs send Unequipped

couNters <display>


< enter> - save new value


Metrodata MetroLAN: Local connection to " " Alarms: Major

Path Counters

Pointer Increments 0

Pointer Decrements 0

Positive Justifications 0

Negative Justifications 0

<Escape> - exit, C - clear counts other key - refresh


66 76-02-059D

7.2 LAN port set-up

When the LAN port has been selected for set-up, a two page menu screen is available to the user as shown below. Page change is done by pressing > or < as shown on the message screens below.

Figure 7.14 LAN port set-up menu screens

The definitions of the menu items are given in the subsections below.

7 .2. 1 State

The LAN port state is either UP or DOWN. The state is reported in this menu item. Toggling the space bar changes the State. Other menu items can only be changed when the State is DOWN.

LAN PORT 2

State Down

auto-Negotiation Enabled

Flow control Enabled

MDI/MDIX Auto

maC address 0.0.0.0.0.0

fcs Generation Disabled

maX frame size 1536

gfp paylOad fcs Disabled

Allocation -

LCAS Enabled

max diff delaY 32.000ms

RDI type 1 - bit

LAN PORT 2

lIst allocation <display>

lcas statUs <display>

counTers <menu>

HIGHLIGHTED letter - select item HIGHLIGHTED letter - select item

< - previous page > - next page

<escape> - exit menu <escape> - exit menu


67 76-02-059D

7 .2. 2 Auto-negotiation

This item is either ENABLED or DISABLED. When enabled, the LAN port establishes the LAN operating speed and connects automatically. When Auto-negotiation is disabled is DISABLED, the user must configure the speed/duplex manually.

A two page menu screen is available to the user as shown below. Page change is done by pressing > or < as shown on the message screens below.

Figure 7.15 LAN menu with Auto-negotiation Disabled/Enabled

7 .2. 3 Flow control

This item is either ENABLED or DISABLED. When ENABLED, the metroLAN implements IEEE802.3x flow control to reduce traffic loss when reduced bandwidth is available. Note that Flow Control is only active when Auto-negotiation is ENABLED.

LAN PORT 2 LAN PORT 2

State Down State Down

auto-Negotiation Disabled auto-Negotiation Enabled

spEed 10 Mbit/s Flow control Enabled

Duplex Half MDI/MDIX Auto

Flow control Disabled maC address 0.0.0.0.0.0

MDI/MDIX Auto fcs Generation Disabled

maC address 0.0.0.0.0.0 maX frame size 1536

fcs Generation Disabled gfp paylOad fcs Enabled

maX frame size 1536 Allocation -

gfp paylOad fcs Enabled LCAS Disabled

Allocation - max diff delaY 32.000ms

LCAS Disabled RDI type 1-bit

LAN PORT 2 LAN PORT 2

max diff delaY 32.000ms lIst allocation <display>

RDI type 1 - bit lcas statUs <display>

lIst allocation <display> counTers <menu>

lcas statUs <display> Auto Neg Enabled

counTers <menu>

Auto Neg Disabled


68 76-02-059D

7 .2. 4 MDI/MDIX

This item is either AUTO or MDIX. When set to AUTO the port determines whether an MDI or MDIX port layout is required. If set to MDIX the port presents a fixed MDIX interface.

7 .2. 5 MAC address

This item is the MAC address used for IEEE802.3x pause frames and can be changed using the sub-menu screen. Options are transmit zero (0.0.0.0.0.0) or transmit MetroLAN unit address. Note that Pause Frames’ MAC addresses are not entered into Switch Address filter tables.

Figure 7.16 MAC address sub-menu

7 .2. 6 FCS generation

This item (Frame Check Sequence) is either ENABLED or DISABLED. When ENABLED, an incoming Ethernet packet is stripped of its 4 byte FCS, passed over the SDH link and has a new FCS calculated and appended on its exit from the MetroLAN LAN interface at the remote end. If FCS is disabled, the 4 byte FCS remains with the packet as it is transmitted over the SDH link, and emerges unmodified onto the LAN at the remote end of the link.

Figure 7.17 FCS sub-menu

7 .2. 7 Max frame size

The maximum frame size is 4096 bytes. The default Max Frame size is 1536 bytes and supports most current physical layer frame formats. The frame size is typed into the sub-menu.

7 .2. 8 GFP payload fcs

This item (GFP payload Frame Check Sequence) is either ENABLED or DISABLED. When ENABLED, a 4-byte FCS is added to the GFP Frame encapsulating the Ethernet packet for its transmission across the SDH link.When the item is DISABLED, no FCS is added to the GFP.








69 76-02-059D

7 .2. 9 Allocation

This item records the number or number range of VCs that have been allocated to the LAN port. Items can be entered individually, comma delimited, or entered as a range e.g. 111, 121, or 131-133. Allocation does not have to be to adjacent TUGs.

Figure 7.18 Allocation sub-menu

7 .2. 10 LCAS

This item (Link Capacity Adjustment Scheme) is either ENABLED or DISABLED.A group of VCs can only function as a link if all are working. If, for example, a link has 8 functioning VCs in one direction, and only 7 in the other direction, it will not function. When ENABLED, LCAS removes a faulty or non-functioning VC from a group of VCs and thus restores the link to working order, albeit at a lower throughput owing to the loss of a VC. If the VC subsequently returns to working order, LCAS will seamlessly add the VC back into the group.

7 .2. 11 Max differential delay

This item sets the maximum delay for an Ethernet frame being transported across a group of VC-12s. The MetroLAN will reconstruct data from the different paths taken across the network for delays within the maximum.

Figure 7.19 Differential delay sub-menu

7 .2. 12 RDI type

The RDI (Remote Defect Indicator) is toggled between its two modes 1-BIT and 3 - BIT.

Figure 7.20 RDI sub-menu

Enter list and/or range

>

Enter value in ms (0 - 48)

>





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7 .2. 13 J2 transmit & J2 expected

These two menu items are labels attached to VC11/12s. They are used as identity tags to assist in specifying the network. Both J2s consist of a string of characters up to 15 bytes long. The J2 TRANSMIT label is sent with outgoing packets, and is compared with the J2 EXPECTED string when traffic is received from the same VC.

Figure 7.21 J2 transmit/expected sub-menu

In normal circumstances the two labels will be the same, thus indicating a sound network path. If the J2s differ, then the path is incorrect and an alarm is raised. Alarm processing will only occur if a valid J2 EXPECTED string has been entered.

7 .2. 14 List allocation

Figure 7.22 List allocation display

Enter string

>



TUG - 3 #1

VC-12 111 - 113 121-123 131 -133 141 - 143 151 - 153 161 - 163 171 - 173

- - - - - - -

- - - - - - -

TUG - 3 #2

VC - 3 -

TUG - 3 #3

VC-3 -


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7 .2. 15 LCAS status

Figure 7.23 LCAS Status display

7 .2. 16 Counters

Interface Statistics

INTERFACE STATISTICS

ifInOctets In FCS Errors

ifInUcastPkts In Pause Frames

ifInNUcastPkts In Alignment Errs

ifInDiscards In Length Errors

ifInErrors In Under-size Frms

ifInUnknownProtos In Over-size Frms

ifOutOctets In Fragments

ifOutUcastPkts In Jabbers

ifOutNUcastPkts Out Pause Frames

ifOutDiscards Out Deferrals

ifOutErrors Out Excessive Defs

ifOutQLen out Collisions

press any key to continue:


TX LCAS STATUS

VC x1x x2x x3x x4x x5x x6x x7x

1x1

1x2

1x3

<Escape> - exit, R - receive status, other key - refresh

COUNTERS

Interface <display>

Encap/decap <display>


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Encapsulation Counters

Encapsulation Counters

Encapsulated Byte Count 0

Encapsulated Frame Count 0

Decapsulation Counters

Frame Size Errors 285904458

Payload FCS Errors 429070118

Payload Frames Received 0

Core HEC Errors 429070112

Client Data Frames Rcvd 0

EXI Mismatch 429070112

Idle Frame Count 429070112

Client Mgmt Frames Recvd 429070112

PTI Errors 429070112

Payload HEC (tHEC) Errs 285904344

UPI Errors 429070112

<Escape> - exit, C - clear counts other key - refresh

Figure 7.24


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7.3 E1 / T1 PORT

Figure 7.25 E1/T1 port menu

7 .3. 1 State

The port state is either UP or DOWN. The state is reported in this menu item. Toggling the space bar changes the State. Other menu items can only be changed when the State is DOWN.

7 .3. 2 Interface

This item is toggled using the space bar. Options are E1 or T1.

7 .3. 3 Rx sensitivity

This item is toggled using the space bar. Options are SHORT-HAUL or LONG-HAUL.

7 .3. 4 Allocation

This item is used to allocate a VC-12 to the E1 channel. The format of the TUG is (klm).

Figure 7.26 VC allocation sub-menu

E1/T1 PORT B

State Down

Interface E1

rx sEnsitivity Short-haul

Allocation -

RDI type 1-bit

J2 transmit

j2 eXpected 00


couNters <display>



Enter VC/VT no. (klm)

>


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7 .3. 5 RDI type




These two menu items are labels attached to VC11/12s. They are used as identity tags to assist in specifying the network. Both J2s consist of a string of characters that you enter up to 15 bytes long. The J2 TRANSMIT label is sent with outgoing packets, and is compared with the J2 EXPECTED string when traffic is received from the same VC. In normal circumstances the two labels will be the same, thus indicating a sound network path. If the J2s differ, then the path is incorrect and an alarm is raised. Alarm processing will only occur if a valid J2 EXPECTED string has been entered.

Figure 7.28 J2 Transmit/Expected entry screens






Enter string

>



TUG - 3 #1

VC-12 111 - 113 121-123 131 -133 141 - 143 151 - 153 161 - 163 171 - 173

- E1/T1 B - - - - -

TUG - 3 #2

VC - 3 -

TUG - 3 #3

VC-3 -


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7 .3. 8 Counters

Figure 7.30 E1/T1 Counter display


Path Counters



<Escape> - exit C - clear counts other key - refresh


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7.4 E3 / DS-3 PORT (MetroLAN2000 only)

Figure 7.31 E3/DS3 port menu

7 .4. 1 State

The port state is either UP or DOWN. The state is reported in this menu item. Toddling the space bar changes the State. Other menu items can only be changed when the State is DOWN.

7 .4. 2 Interface

This item is toggled using the space bar. Options are E3 or DS3.

7 .4. 3 Allocation

This item is used to allocate a VC-3 to the E3 or DS-3 channel. The format of the TUG is (km).

Figure 7.32 VC allocation sub-menu

7 .4. 4 RDI type



E3 DS3 PORT K

State Down

Interface E3

Allocation -

RDI type 1-bit

J1transmit

j1 eXpected 00


couNters <display>



Enter VC/VT no. (km)

>





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These two menu items are labels attached to VC3s. They are used as identity tags to assist in specifying the network. Both J1s consist of a string of characters up to 15 bytes long. The J1 TRANSMIT label is sent with outgoing packets, and is compared with the J1 EXPECTEDstring when traffic is received from the same VC. In normal circumstances the two labels will be the same, thus indicating a sound network path. If the J1’s differ, then the path is incorrect and an alarm is raised. Alarm processing will only occur if a valid J1 EXPECTED string has been entered.



7 .4. 7 Counters

Figure 7.35 E3/DS3 Counter display



TUG - 3 #1

VC-12 111 - 113 121-123 131 -133 141 - 143 151 - 153 161 - 163 171 - 173

- B - - - - -

- - - - - - -

TUG - 3 #2

VC - 3 211

TUG - 3 #3

VC-3 -


Path Counters



<Escape> - exit C - clear counts other key - refresh


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ANALYSING PERFORMANCE

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8 ANALYSING PERFORMANCE

8. 1 Introduction

The MetroLAN provides you with extensive performance analysis functions, which allow you to monitor and record service information about the various links. The first part of this section describes the Errors and Alarms that are valid for the modes of operation of the MetroLAN. Performance data is displayed in the form of an on-screen report or summary. Information is grouped into periods of 15 minutes. Examples of the screens are shown in later subsections.

8. 2 Errors and Alarms

8 . 2. 1 SDH port errors & alarms

The following error types are reported:

Figure 8.1 MetroLAN SDH Error types

The following alarms are monitored. The default status is shown in the table below in upper case. The alarm extension menu can be used to set the status of any alarm to the required level e.g. MAJOR, Minor or None

Figure 8.2 MetroLAN SDH Alarm types

B1 BIP Errors Indicate parity errors

B2 BIP Errors Indicate parity errors.

Line FEBE Errors Line Far End Block Errors

0 - LOS Loss of Signal MAJOR, Minor, None

1 - LOF Loss of Frame MAJOR, Minor, None

2 - LOC Loss of Clock MAJOR, Minor, None

3 - AIS Alarm Indication Signal MINOR, Major, None

4 - FERF Far End Receive Failure MAJOR, Minor, None

5 - SD Signal Degrade MAJOR, Minor, None

6 - OOF Out of Frame MAJOR, Minor, None

7 - TIM Trace Indicator Mismatch MINOR, Major, None


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8 . 2. 2 VC errors & alarms

The following error types are reported:

Figure 8.3 VC Error types

The following alarms are monitored. The default status is shown in the table below in upper case. The alarm extension menu can be used to set the status of any alarm to the required level e.g. MAJOR, Minor or None

Figure 8.4 VC Alarms

8 . 2. 3 E1/T1 errors & alarms

The following error type is reported:

Figure 8.5 E1/T1 Error type

The following alarms are signalled. The default status is shown in the table below in upper case. The alarm extension menu can be used to set the status of any alarm to the required level e.g. MAJOR, Minor or None

Figure 8.6 E1/T1 Alarms

V5 BIP Errors V5 Parity errors

REIs Remote Error Indicator

0 - LOP Loss of Pointer MAJOR, Minor, None

1 - UNEQ Unequipped MAJOR, Minor, None

2 - PLM Path Label Mismatch MAJOR, Minor, None

4 - RDI Remote Defect Indication MINOR, Major, None

5 - SD Signal Degrade MAJOR, Minor, None

6 - RFI Remote Fault Indicator MAJOR, Minor, None

7 - TIM Trace Indicator Mismatch MINOR, Major, None

8 - SSF System Server Failure MAJOR, Minor, None

9 - CAIS C2/V5 Alarm Indication Signal

MINOR, Major, None

A - LOM Loss of Multiframe MINOR, Major, None

BPV Errors Bi Polar Violation errors

0 - LOS Loss of Signal MAJOR, Minor, None

3 - AIS Alarm Indication Signal MINOR, Major, None


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8 . 2. 4 Error and Alarm definitions

The definitions corresponding to Performance reporting are given below:

Figure 8.7 Performance data definitions

Errors Interface Definition

B1 BIP SDH Indicate parity errors

B2 BIP SDH Indicate parity errors

Line FEBE SDH Line Far End Block Error

V5 BIP Error VC V5 parity error

REI VC Remote Error Indicator

BPV E1/T1 Bi Polar Violation

G.821 Errors Definition

Err. Count The number of errors in the interval.

Total secs Valid number of seconds in the interval (less than 900 means that the 15- min. period was incomplete).

EFS Error-free seconds.

ES Errored seconds: seconds with an error.

BES Bursty errored seconds: seconds > 2 errors,<1 in 103 errors

SES Severely errored seconds: seconds >1 in 103 errors.

UAS Unavailable seconds: declared after SES for 10 consecutive secs.

DM Degraded minutes: >1 in 106 errors/minute.

Alarms Definition

LOS SDH, E1/T1

Loss Of Signal: No data and therefore no clocking information. The units are alarm seconds if the summary style is G.821, or events if the style is set to counts.

LOF SDH Loss of Frame: Clocking information is there but the frame alignment pattern is faulty. The units are alarm seconds if the summary style is G.821, or events if the style is set to counts.

LOC SDH Loss of Clocking information

AIS SDH, E1/T1

Alarm Indication Signal: All '1s' being received. The units are alarm seconds if the summary style is G.821, or events if the style is set to counts.

FERF SDH Far End Receive Failure: the remote MetroLAN has detected a prob-lem. The units are seconds if the summary style is G.821, or events if the style is set to counts.

SD SDH,VC Signal degradation

OOF SDH Out of frame events caused by frame alignment word errors

TIM SDH Trace Indicator Mismatch


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8. 3 Performance menu

Figure 8.8 Performance data menu

8 . 3. 1 Interface

This field is for the selection of the interface for which statistics are to be displayed. Options are toggled using the space bar. They are: SDH, VC, E!/T1. Both VCs and E1/T1 ports must be identified to the system by their number/letter. Thus a VC may be displayed as VC121, and an E1 port as E1/T1 B.

Figure 8.9 Interface identity screen

8 . 3. 2 Display mode

This sets the type of display and the options are:

Full report and Rolling report

Static summary, Updated summary and 15 minute summaries

These modes are described in the subsections below describing reports and summaries. Reports and summaries are dealt with separately since they have different characteristics.

8 . 3. 3 Summary style

The SUMMARY STYLE menu option only appears when a Summary has been selected (as opposed to a Report) from the Display mode menu item, and this is therefore described in section 7.5.3 below.

8 . 3. 4 Physical layer stats

This item leads to the physical layer stats display screen described later in this section.

PERFORMANCE DATA

Interface VC121

Display mode Static summary

Summary style G.821

Phys layer stats <display>

Error type V5 BIPs

Clear all data

HIGHLIGHTED letter – select item <escape> - exit menu

Enter port name (A-H)>


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8 . 3. 5 Error type

The Error type to be reported is selected by toggling the options presented on the menu screen. The options are described in section 7.2 above.

8. 4 Physical layer stats – Reports

8 . 4. 1 Full Report

This presentation gives six sequential screens of information extending over the previous 24 hours for each type of error. The entries show the performance statistics for each 15-minute interval, referenced from the current real-time clock time.

Note: If the real-time clock is altered then the relative times of this database are also modified.

Period Starting

14:09:23 0 900 0 0 0 0 0 0 900 0 0

14:24:23 0 900 0 0 0 0 0 0 900 0 0

14:39:23 0 900 0 0 0 0 0 0 900 0 0

14:54:23 0 900 0 0 0 0 0 0 900 0 0

15:09:23 0 900 0 0 0 0 0 0 900 0 0

15:24:23 0 900 0 0 0 0 0 0 900 0 0

15:39:23 0 900 0 0 0 0 0 0 900 0 0

15:54:23 0 900 0 0 0 0 0 0 900 0 0

16:09:23 0 900 0 0 0 0 0 0 900 0 0

16:24:23 0 900 0 0 0 0 0 0 900 0 0

16:39:23 0 900 0 0 0 0 0 0 900 0 0

16:54:23 0 900 0 0 0 0 0 0 900 0 0

17:09:23 0 900 0 0 0 0 0 0 900 0 0

17:24:23 0 900 0 0 0 0 0 0 900 0 0

17:39:23 0 900 0 0 0 0 0 0 900 0 0

17:54:23 0 900 0 0 0 0 0 0 900 0 0

18:09:23: 0 900 0 0 0 0 0 0 900 0 0

Figure 8.10 Full report screen

Metrodata MetroLAN: Local connection to “[nodename]” Alarms: Major

E1/T1 B 1 of 6

I BPV Errors | Alarmed seconds:

Count Valid EF ES BES SES UAS DM Valid LOS AIS

<Escape> to exit, any other key to continue


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8 . 4. 2 Rolling report

The Rolling report option gives a single line summary of the statistics at the end of each 15-minute period. This option is a more economic version of the 15-minute summaries option where a line printer is used, since only one report line is added to the printout every 15 minutes.

Period Starting

14:09:23 0 900 0 0 0 0 0 0 900 0 0

14:24:23 0 900 0 0 0 0 0 0 900 0 0

14:39:23 0 900 0 0 0 0 0 0 900 0 0

14:54:23 0 900 0 0 0 0 0 0 900 0 0

15:09:23 0 900 0 0 0 0 0 0 900 0 0

15:24:23 0 900 0 0 0 0 0 0 900 0 0

Figure 8.11 Rolling report screen

Metrodata MetroLAN: Local connection to “[nodename]” Alarms: Major

E1/T1 B 1 of 6

I BPV Errors | Alarmed seconds:

Count Valid EF ES BES SES UAS DM Valid LOS AIS

<Escape> to exit, any other key to continue


85 76-02-059D

8. 5 Physical layer stats - Summaries

8 . 5. 1 Screen presentation

The summary report screens are designed to give a view of the alarm and error status on a single screen. There is a choice of update frequencies of the data so that the user can choose the optimum presentation at any time.

The type of Alarm or Error being monitored is shown in the left hand column of the screen. Always check this when viewing a screen for the first time. If a diagnostic test is being run, its name appears at the top right of the screen entitled DIAGS.

The Temporary counts column is used to obtain error counts over a user definable test period, the duration of which need not be time related to anything else, without erasing the entire statistics database. You can reset the Temporary counts by pressing C. This means that a measurement may be started after a 15 minute interval has partly elapsed. The counts are displayed for the temporary measurement period from its start until you clear it down by pressing C.

Pressing any key other than C or <esc> will instantly refresh the display. This applies to each of the display styles - Static, Updated and 15 minute displays.

The Current 15-mins column gives the error counts for the current partial 15 minute period. Therefore the duration of statistics within this column varies between 0 and 15 minutes in a cyclical fashion as time passes.

The Previous 15-mins column gives the error counts for the previous complete 15 minute period, assuming that there has been one.

The Last 24 hours column gives the error counts for the previous 24-hour period, as an accumulation of the last 96 complete Previous 15-mins periods.

8 . 5. 2 Presentation display modes

The three DISPLAY MODES for summaries define the frequency with which the display data is updated.

Static summaryThis option presents the data as a single screen display, giving a snapshot of the current status. The information in the display may be updated by pressing any key except <escape>.

Updated summaryThis is similar to a static summary except that the screen is refreshed approximately every 5 seconds, and provides a dynamic display of events.

15 minute summariesThis updates the information in a summary at the end of each 15 minute period. This mode is useful where a printer is connected to the terminal port and a detailed log is required.

Once one of these summary types has been selected for display, three styles of display are available for selection, as described below.


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8 . 5. 3 Summary style

This option determines the method of presenting the error information in the summaries. These options are not available for the full or rolling reports, which have a fixed style. The SUMMARY STYLE option only shows on the menu when a SUMMARY has been selected in the DISPLAY MODE. The styles available are:

Figure 8.12 Summary styles

8 . 5. 4 Summary display - COUNTS style

Figure 8.13 Performance summary screen - COUNTS style

Note:If an alarm appears in Counts style, it appears only once as a single event, and is recorded in the Temporary Counts column only. It may be best to confirm an alarm situation by setting the summary screen to G.821 style when an alarm is present.

Counts Errors and alarms accumulate and are quoted as an absolute count.

G.821 Errors and alarms are expressed as G.821 parameters per second.

%G.821 Errors and alarms are shown in terms of normalised percentage G.821 parameters.

Metrodata MetroLAN: Local connection to "[nodename]"

13:32:54 Mon 18/4/2005 PERFORMANCE SUMMARY VC121

Current Alarms: none ------------------------------------------------ Diag: None

Temporary Current Previous Last

Counts 15 mins 15 mins 24 hours

Alarmed secs

Total Secs 856 510 900 86400

V5 BIPs 0 0 0 0

Total secs 1 0 0 0

Err Count 0 0 0 0

Error rate 0 0 0 0

<Escape> - exit, N - next interface, C - clear temp, other key - refresh


87 76-02-059D

8 . 5. 5 Summary display - G.821 style

Figure 8.14 Performance summary screen - G.821 style

Note: If an alarm appears in G.821 style, it is updated incrementally in the Temporary Counts and other columns as appropriate for its duration. The definition of G.821 as parameters per second gives a different summary layout than that for Counts style. In Counts style, an event is recorded once only.

Metrodata MetroLAN: Local connection to "[nodename]"

13:32:54 Mon 18/4/2005 PERFORMANCE SUMMARY E1/T1 B

Current Alarms: ---- ------------------------------------------------ Diag: None



Alarmed secs

Total Secs 856 510 900 86400

LOS 500 500 0 0

AIS 0 0 0 0

BPV Errors: 0 0 0 0

Total secs 856 510 900 86400

ES 500 500 0 0

SES 500 500 0 0

UAS 0 0 0 0



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8 . 5. 6 Summary display - Percent G.821 style

Figure 8.15 Performance summary screen - Percent G.821 style

Metrodata MetroLAN: Local connection to "[nodename]" Alarms: Major

13:32:54 Mon 18/4/2005 PERFORMANCE SUMMARY SDH

Current Alarms: LOF, OOF ------------------------------------------------ Diag: None



Alarmed time:

Total secs 856 510 900 86400

%LOS 00.0000% 00.0000% 00.0000% 00.0000%

%LOF 100.0000% 100.0000% 100.0000% 100.0000%

%LOC 0.0000% 0.0000% 0.0000% 0.0000%

%AIS 0.0000% 0.0000% 0.0000% 0.0000%

%FERF 0.0000% 0.0000% 0.0000% 0.0000%

%SD 0.0000% 0.0000% 0.0000% 0.0000%

%OOF 100.0000% 100.0000% 100.0000% 100.0000%

BPV Errors: 0.0000% 0.0000% 0.0000% 0.0000%

%EFS 100.0000% 100.0000% 100.0000% 100.0000%

%ES 0.0000% 0.0000% 0.0000% 0.0000%

%SES 0.0000% 0.0000% 0.0000% 0.0000%

%UAS 100.0000% 100.0000% 100.0000% 100.0000%


TEST & TROUBLESHOOTING

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9 TEST & TROUBLESHOOTING

Local loop tests can be performed on the SDH port, all the E1/T1 ports and the E3/DS3 ports. Diagrams showing the functioning of these test loops are given in this Section.

9. 1 Testing Menu

When you select the TESTING option from the MAIN SET-UP menu, the TESTING menu is displayed.

Figure 9.1 Testing menu

The type of test to carry out are selected by selecting a port and toggling the test option on this screen between NONE, LOCAL LOOP and OUTSIDE LOOP.

Note that Local loop tests can be carried out on the SDH port, any E1 port or any E3/DS3 port (MetroLAN 2000).

TESTING

SDH Local loop

E1/T1 A None

E1/T1 B Local loop

E1/T1 C None

E1/T1 D None

E1/T1 E None

E1/T 1 F Outside loop

E1/T1 G None

E1/T1 H None

E3/DS3 J Local loop

E3/DS3 K None

E3/DS3 L None



TEST & TROUBLESHOOTING

90 76-02-059D

9. 2 Local Loop Tests

The schematic below indicates the local loop tests that can be performed on the MetroLAN.

10/100BaseT

P1 P2 P3 P4 P5 P6 P7 P8


TERMINAL

www.metrodata.co.uk

Tx Rx

NetworkSTM-1/OC3


P2

P1

P4

P3

P6 P8

P5 P7

www.metrodata.co.uk

Rx TxRx Tx

PORT 3 PORT 2

Rx Tx



M ANPORT

E3 Loop test

STM-1 Loop test

E1 Loop test

RxTx E1

B D F H

A C E G

L K J

Figure 9.2 Local loop tests

MetroLAN REMOTE MANAGEMENT

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10 METROLAN REMOTE MANAGEMENT

In addition to using the terminal port, the MetroLAN may be managed remotely by using a LAN-based network management system. In order to do this, the LM1100 SNMP Enabler option must be fitted to the MetroLAN and a LAN must be connected to the Management port.

The operating parameters, event log, performance statistics database and diagnostics functions are known collectively as the Management Information Base (MIB). The MetroLAN MIB can be accessed remotely by using a Network Management System (NMS) connected to the LAN. The NMS should use SNMP (Simple Network Management Protocol), and could be located on the local LAN or on a remote LAN connected to the local LAN via a LAN bridge or IP router.

The MIB definitions supported have been placed in the public domain by Metrodata and can be parsed in to any NMS supporting an ASN.1 MIB parser. For further information on the management interface and the MIB definition, please refer to the LM1100 SNMP Enabler user manual. The information given in this section is a brief summary to serve as an introduction to the subject.

10.1 Management menu

When the LM1100 SNMP Enabler is fitted to the MetroLAN, the MAIN SET-UP menu contains the option MANAGEMENT.


MAIN SET-UP


General set-up <menu>


V.24 set-up <menu>

Management <menu>

Testing <menu>

Special <menu>





92 76-02-059D

The MANAGEMENT menu leads to a series of menus which permit you to configure the various system management protocols and parameters. Only the utility options Telnet, TFTP and PING are described below. The other options are described in the Metrodata LM1100 manual.

Figure 10.2 Management menu

10 .1. 1 Telnet Option

The Telnet option permits a Telnet session to be established between the local MetroLAN a remote unit.

Figure 10.3 Telnet screen

Note that the MetroLAN does not use DNS facilities and therefore that the IP Address of the device to be called must be used. The following Telnet commands are available on MetroLAN and are displayed in response to the <help> command

Figure 10.4 Telnet commands

MANAGEMENT

Ethernet <menu>

Data-link <menu>

IP <menu>

UDP <menu>

tCp <menu>

sNmp <menu>

Telnet <display>

tFtp <menu>

Ping <display>

Metrodata MetroLAN: Local connection to “[nodename]”

Telnet>

Command Action

open Open a connection to an IP address

close Close a connection

abort Abandon a connection without waiting for confirmation from the called service

status Give a status report of the telnet session

quit Leave telnet

help Print help screen.

^] Escape to command mode


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10 .1. 2 TFTP

TFTP is used to upload or download software or config files form the device to or from a server (CLIENT mode) or to permit remote devices to acquire files from the device (SERVERmode). The remote server or device is identified by its REMOTE IP address, which is typed into a menu box after the menu item is selected.

Figure 10.5 TFTP menu screens

The two modes of TFTP operation are as follows:

a) In SERVER mode the device awaits GET or PUT action from other remote devices. The menu items SOFTWARE FILE NAME or CONFIG FILE NAME specify the files which can be transferred. Note that Software may only be uploaded into the local device, whilst Config files can be transferred in either direction.

b) In CLIENT mode, Config files may be downloaded from the server (GET), or may be uploaded to the server (PUT). Note that Software may only be uploaded (GET) into the local device, whilst Config files can be transferred in either direction. The system requests a file name in response to selection of a GET or PUT action from the menu.

10 .1. 3 Ping

PING is used to check that a selected device is responding on the network by sending a PING packet to its IP address, and receiving an acknowledgement if the connection is successful. When PING is selected form the screen, the following dialogue occurs if the connection is successful. if it is not, the screen message is NO RESPONSE.

Figure 10.6 Ping screen

TFTP TFTP

Mode Server Mode Client

remote IP 192.168.1.10 remote IP 192.168.1.10

Software file name MetroLAN.45 Get new software

Config file name MetroLAN.cnf get Config

Put config

Enter file name>

Enter file name, then wait>

Metrodata MetroLAN: Local connection to “Metro-LAN“Destination: [192.168.1.10]press any key to stop testokayokay

Documents

Metrodata MetroLAN User Manual