Madge Training - ringdale.com Hubs.pdf · 3.3 U SING T RUE V IEW ... 3.6 S ECURITY AND F AULT F INDING.....47 3.7 T RUE V IEW A LERT M ANAGER ... Madge Training TRN-02 Intelligent

Madge Training TRN-02 Intelligent Token Ring Hubs_____________________________________________________________________________________________________

Madge Networks 1997 05/11/99 Page 1 of 88

Madge.connect

Madge TrainingTRN-02

Intelligent Token Ring Hubs

Self-Study Guide


Madge Networks 1997 05/11/99 Page 2 of 88

TABLE OF CONTENTS

1. INTRODUCTION................................................................................................................... 3

2. MADGE INTELLIGENT HUBS............................................................................................ 5

2.1 OBJECTIVES........................................................................................................................... 52.2 INTRODUCTION...................................................................................................................... 52.3 SMARTCAU PLUS PRODUCT LINE .......................................................................................... 82.4 SMARTLAM PLUS UTP/STP PRODUCT INFORMATION .......................................................... 192.5 SMARTCAU PLUS AND SMARTRAM PLUS UTP/STP INTER-CONNECTIVITY.......................... 222.6 SUMMARY ........................................................................................................................... 272.7 SELF-STUDY QUESTIONS...................................................................................................... 292.8 WORKSHOP ONE - INTELLIGENT HUB INTER-CONNECTIVITY ................................................. 32

3. TRUEVIEW MANAGEMENT FOR INTELLIGENT HUBS ............................................ 36

3.1 OBJECTIVES......................................................................................................................... 363.2 INTRODUCTION TO TRUEVIEW ............................................................................................. 363.3 USING TRUEVIEW................................................................................................................ 393.4 SMARTCAU PLUS AND SMARTRAM PLUS UTP/STP MANAGEMENT ..................................... 413.5 MANAGING THE PORTS ........................................................................................................ 453.6 SECURITY AND FAULT FINDING ............................................................................................ 473.7 TRUEVIEW ALERT MANAGER............................................................................................... 513.8 SUMMARY ........................................................................................................................... 543.9 SELF-STUDY QUESTIONS...................................................................................................... 563.10 WORKSHOP TWO - TRUEVIEW SMARTCAU PLUS AND SMARTRAM PLUS UTP/STPMANAGEMENT .................................................................................................................................. 59

4. APPENDIX A - INTRODUCTION TO NETWORK MANAGEMENT............................. 72

4.1 OSI OVERVIEW OF NETWORK MANAGEMENT ....................................................................... 724.2 BASIC SNMP CONCEPTS...................................................................................................... 734.3 RMON - REMOTE MONITORING .......................................................................................... 76

5. APPENDIX B - ANSWERS TO SELF-STUDY QUESTIONS............................................ 79

5.1 INTELLIGENT HUB - SELF STUDY QUESTIONS ........................................................................ 795.2 TRUEVIEW MANAGEMENT - SELF-STUDY QUESTIONS ........................................................... 80

6. APPENDIX C - SUGGESTED ANSWERS TO WORKSHOPS ......................................... 82

6.1 WORKSHOP ONE - INTELLIGENT HUB INTER-CONNECTIVITY ................................................. 826.2 WORKSHOP TWO - TRUEVIEW SMARTCAU PLUS AND SMARTRAM PLUS UTP/STPMANAGEMENT .................................................................................................................................. 84

7. APPENDIX D - TABLE OF FIGURES................................................................................ 87


__________________________________________________________________________________Student Notes

Sg_trn02 Madge Networks Page 3 of 88

1. Introduction

Audience:The course is aimed at technical personnel who will be supporting customers throughboth telephone support and site visits, including installation, diagnostics and networkdesign.

Course pre-requisites and objectives:Delegates are expected to have completed the following or equivalent course: TRN-01- A good knowledge of Token Ring principles is important. Familiarity with networkmanagement, in particular SNMP and RMON is assumed.Appendix A contains a short summary of SNMP and RMON and its main functionsand features.

By the end of this course you will be able to: install, configure and connect Madge intelligent hubs explain why it is not advisable to use non-intelligent hubs with intelligent hubs in the

same layer design and build a complex, multi-layer segment describe TrueView CAU / RAM Manager install and configure TrueView CAU / RAM Manager use the icons to identify a device and determine its status add devices manually or using automatic discovery create and delete group folders use the Tools menu to manage devices download new microcode use Alert Manager to troubleshoot problems with devices manage CAUs / RAMs using the TrueView Manager table view and explain CAU LCD messages configure the TrueView Traffic Monitor manage CAU / LAM / RAM ports implement security features use the fault finding features manage the devices using TELNET and SNMP


__________________________________________________________________________________Student Notes


Topics covered during this course: Madge intelligent hubs - control panel, connectivity and internals Fault recovery process Lobe length differences with passive (i.e. non-intelligent) LANs SmartCAU Plus, SmartLAM and SmartRAM management

How to use this guide:This guide includes details on all areas covered during the TRN-02 Intelligent TokenRing Hubs course, as well as additional notes on areas that were only verbally coveredand a variety of activities which allow you to cover the topics in a way which will suityour own style of learning.

Look out for the icons on the left. Try to cover all the suggested practical activitiesand check your knowledge using the workbook reviews.

If you are taking Madge Certification tests make sure you cover the topics andobjectives listed in the first chapter as well as the more detailed objectives for eachmodule or chapter.

ICON KEY

F Key Information

& Workbook Review

? Self-Study: Lab Exercise


__________________________________________________________________________________Student Notes


2. Madge Intelligent Hubs

2.1 Objectives

By the end of this session you will be able to: Describe the Madge Intelligent Hub family Discuss the need for intelligent hubs in a Token Ring network List the Madge Intelligent Hubs and their features Explain the internals of the SmartCAU Plus Name the connectors on the front and rear panel of the units Describe the fault recovery mechanisms and repeater functions Discuss the various ways of interconnecting the Madge Intelligent Hub family

2.2 Introduction

Madge Token Ring Hubs

n TR 2L & TR 20UE (UTP) or TR 20SE (STP)

Controlled Access Unit

Lobe Attachment Module

n TR 20U (UTP) or TR20S (STP)

Ring Access Module

Figure 1 - Madge Token Ring Hubs

The figure above depicts the Madge Intelligent Hub Family. It can be split into twogroups:

- CAU / RAM (SmartCAU Plus and SmartRAM Plus UTP / SmartRAM STP)- LAM (SmartLAM STP / SmartLAM Plus UTP


__________________________________________________________________________________Student Notes


The SmartCAU Plus is an intelligent wiring concentrator for Token Ring networks.You can connect four Token Ring stations to it directly. Used in conjunction with upto four SmartLAM STP / SmartLAM Plus UTP, you can connect up to eightyToken Ring stations to your SmartCAU Plus. The SmartLAM STP / SmartLAM PlusUTP is an expansion module that allows you to connect stations to your SmartCAUPlus. It has twenty ports to which you can connect Token Ring stations. There are twotypes:

- SmartLAM Plus for UTP (Unshielded Twisted Pair) media- SmartLAM for STP (Shielded Twisted Pair) media

Combining the Madge SmartCAU Plus devices and SmartLAM STP / SmartLAM PlusUTP provides intelligent cabling hubs for Token Ring networks. They provide a meansfor connecting workstations equipped with Token Ring Network Interface Cards intoa Token Ring network. They also incorporate intelligence that automatically switchesout faulty cables and equipment so that, if faults occur, the operation of the network isdisrupted as little as possible.The SmartCAU Plus attaches into the main trunk-cabling using Ring In / Ring Outconnectors in the same way that passive MAUs do. You can intermix MadgeSmartCAU Plus devices and SmartLAM STP / SmartLAM Plus UTP with IBM CAUsand LAMs.

The SmartRAM Plus UTP / SmartRAM STP is also an intelligent cabling device forIEEE 802.5 Token Ring networks. It is an integrated CAU / LAM and there are twotypes:

- SmartRAM Plus for UTP (Unshielded Twisted Pair) media- SmartRAM for STP (Shielded Twisted Pair) media

Both devices have twenty connectors on the front panel to connect up to twentystations to a Token Ring network. You can also connect up to two SmartLAM PlusUTP / SmartLAM STP directly to ports on the rear panel of the SmartRAM Plus UTP/SmartRAM STP, allowing an extra 40 more stations to be connected.

The SmartRAM, being smaller and cheaper than a SmartCAU Plus, has slightly lesserror correction function.


__________________________________________________________________________________Student Notes


Intelligent Wiring Concentrators

n Optimised solution for Token Ring

Automatic recovery from all cable faults

No operator intervention required

Integral ring repeater function

n Adherence to standards

IEEE 802.5 Dual Reconfiguring Ringstandard

Complete interoperability with IBM 8230

Complete interoperability with MSAUs

n IBM / multi-vendor compatiblemanagement

Madge TrueView graphical managementsoftware included

Figure 2 - Intelligent Wiring Concentrators

Since both the SmartCAU Plus and the SmartRAM Plus UTP / SmartRAM STP areintelligent wiring concentrators, they are capable of automatic recovery from all cablefaults; this keeps disruption to the network to a minimum. The modules adhere to theIEEE 802.5 (Token Ring) standard and thus are interoperable with IBM8230 andMAUs.

The graphical management software, TrueView can be used to manage the Madgeintelligent hub family, and also IBM / multi-vendor equipment.


__________________________________________________________________________________Student Notes


2.3 SmartCAU Plus Product Line

2.3.1 Product Description

SmartCAU Plus Product Line

TR 2L

Ring In Ring Out

- control unit for TR 20UE/SE

- copper trunk ring connections

- Optional UTP / Fiber Trunk

Link modules

TR20UE

TR20SE

Figure 3 - SmartCAU Plus with SmartLAM Plus UTP and SmartLAM STP

You can combine SmartCAU Plus and SmartLAM Plus UTP / SmartLAM STP withIBM CAUs and LAMs. The procedure for attaching the LAM cables is the same asthat for a Madge SmartCAU Plus.However, you cannot exceed the limit of four attached IBM LAMs / SmartLAM PlusUTP / SmartRAM STP or any mix of devices, since it only has four LAM portconnectors at the back of the unit.

When attaching a SmartLAM Plus UPT / SmartLAM STP to the same CAU, makesure the SmartLAM Plus UTP is upstream of the SmartLAM STP (that is theSmartLAM Plus UTP precedes the SmartLAM STP in the ring), in order to complywith impedance matching.

The RI/RO modules on the SmartCAU Plus are removable and have fiber or copper(STP or UTP) or a mixture of media type connectors inserted. The RI/RO modulesalso act as cable converters.

F

F


__________________________________________________________________________________Student Notes


SmartCAU Plus Plus Front Panel

Copper TrunkLink Module

LAM Status

Ring speedswitch

Wrap status

Reset button

LCD displaycontrol

2 lines x 24 charactersLCD display

Copper TrunkLink Module

Ring In Ring Out

Figure 4 - SmartCAU Plus Plus Front Panel

2.3.2 Switches

The picture above shows a SmartCAU Plus Plus front panel with two copper trunklink modules on Ring In and Ring Out.The Ring Speed Switch allows the speed of the ring to be changed easily; altering itssetting will cause the SmartCAU Plus to reboot.The LCD toggle switch allows you to view the various status indicators on the LCDpanel.The reset button will reset the CAU. Depending on the length that the reset button ispressed, different resets will be performed. The kind of reset that is being performedcan be observed on the LCD panel.

2.3.3 LED

The LAM status LEDs give clear indications of the status of the four SmartLAM PlusUTP / SmartLAM STP:

green = LAM connected and operating normally.flashing red = LAM disabled due to a fault.LED off = no LAM installed.


__________________________________________________________________________________Student Notes


The wrap LED will give the wrap status of the SmartCAU Plus:LED off = RI / RO port is wrapped and there is no valid Token Ring signal.green = RI / RO ports is unwrapped and there is a valid Token Ring signal.amber = RI / RO port is wrapped. Wrap forced by management software.red = RI / RO port is wrapped due to a fault.

2.3.4 The LCD Display

The LCD panel shows the following information by toggling the LCD display controlswitch:

SmartCAU Plus nameSmartCAU Plus RO MAC address, ring number and IPX addressStatus of each SmartLAM Plus UTP / SmartLAM STP (e.g. Port 1: LAM

Primary path status (e.g. Ring operating normally)Backup path status (e.g. Backup path not in use)Software version number and hardware revision number

Changes to the SmartCAU Plus status appear instantly as alerts on this display.

SmartCAU Plus Plus Rear Panel

Figure 5 - SmartCAU Plus Rear Panel

The row of four 25-way D-type connectors on the left of the rear panel allows thecommunication of management information with up to four SmartLAM Plus UTP /SmartLAM STP.


__________________________________________________________________________________Student Notes


The four 9-way D-type connectors on the right of the rear panel carry the token ringsignals between the SmartCAU Plus and the connected SmartLAM Plus UTP /SmartLAM STP. These connectors are also used for connecting single nodes to theSmartCAU Plus.The 25-way D-type serial connector is used for tests during manufacture and toprovide a terminal management session to the SmartCAU Plus.

Both the 25-way D-type connector and the 9-way D-type connector are numberedfrom 1 to 4 to indicate the pairing of connectors for each attached LAM.

2.3.5 Product Internals

SmartCAU Plus Plus Internals

RI Wrap Path RO Wrap Path

Management Processor

TR20UE/SE Connection Ports

Primary Output NodePrimary Input Node

Secondary Node

Figure 6 - SmartCAU Plus Internals

The SmartCAU Plus contains 3 Token Ring nodes (MAC addresses): PI (Port In), PO(Port Out) and S (Secondary Interface).

The SmartCAU Plus can individually wrap the Token Ring signal between the primarypath and the backup path, giving a total of four possible wrap states:

- Wrap normal signal path- Wrap Ring In signal path- Wrap Ring Out signal path- Wrap Ring In and Ring Out signal path

F


__________________________________________________________________________________Student Notes


Note that wrapping the RI or RO port of the SmartCAU Plus may divide your networkinto two separate segments. However, the three nodes of the SmartCAU Plus arearranged such that at least one of the nodes is always present on each ring segment.

2.3.6 Media Filtering

SmartCAU Plus Plus Media Filters

n High Frequency

Filter in TR 2L

n Each port of

(UTP) TR 20UE

has Impedance

Matching Filter

n Must place (UTP)

TR 20UEs before

(STP) TR 20SEs

in the Ring order

Ring In Ring Out

Figure 7 - SmartCAU Plus Media Filters

The SmartCAU Plus has built-in media filters. The SmartLAM Plus UTP has animpedance matching filter.

Since the SmartLAM Plus UTP is the only LAM with an impedance matching filter, itis important to ensure that the SmartLAM Plus UTP are placed on top of theSmartLAM STP when mixing SmartLAM Plus UTP and SmartLAM STP in one stack.

F


__________________________________________________________________________________Student Notes


2.3.7 SmartCAU Plus Fault Recovery

SmartCAU Plus Fault Recovery

n Automatic fault detection, location and isolation

n Trunk faults:

Dual Reconfiguring Ring

n Lobe faults:

TR 20UE/SE ring speed detect

TR 2L fault detection software

n No operator intervention required

Figure 8 - SmartCAU Plus Fault Recovery

The SmartCAU Plus automatically detects many network faults and takes actions toisolate or bypass them.

Faults on the trunk section of the ring are located and bypassed using the DualReconfiguring Ring standard defined by IEEE 802.5c using an extra type of frame(Beacon Type 1) which on receipt causes the CAU to wrap and test itself.

Lobe faults are located and isolated in one of two ways: special hardware in Madge SmartLAM Plus UTP / SmartLAM STP detects nodes

attempting to insert at the wrong ring speed and locks out the port fault detection software in the SmartCAU Plus locates all other lobe faults

Fault detection on the SmartCAU Plus is fully automatic and requires no operatorintervention.

2.3.8 Recovery Processes

Trunk Cable Fault RecoveryIsolating Network Segments - 1


__________________________________________________________________________________Student Notes


TR 2L 1 TR 2L 2

TR 2L 3

Figure 9 - S,martCAU Plus Isolating Network Segments I

We have a token cable between SmartCAU Plus 2 and SmartCAU Plus 3.PI of SmartCAU Plus 3 detects a signal loss and sends a beacon type 1 frame to PO ofSmartCAU Plus 2 (his NAUN - Nearest active upstream neighbour).

We end up with two separate, but fully functioning rings. The primary circuit carries allthe workstations, but the backup circuit has the three Secondary nodes on it - thesewill be Ring Polling.

Trunk Cable Fault RecoveryIsolating Network Segments - 2

Ring Out Wrap

TR 2L 1 TR 2L 2

TR 2L 3

Figure 10 - SmartCAU Plus Isolating Network Segments II


__________________________________________________________________________________Student Notes


Secondary adapter of SmartCAU Plus 2 may also detect signal loss, but when POdetects beacon frames it informs the management processor which wraps RO, sincethese two conditions occurred together.

Trunk Cable Fault RecoveryIEEE 802.5c Dual Reconfiguring Ring

Ring In Wrap

TR 2L 2

TR 2L 3

Ring Out Wrap

TR 2L wraps ring tobypass fault zone

Monitors fault zone:unwraps when faultrepaired

TR 2L 1

Figure 11 - SmartCAU Plus Dual Reconfiguring Ring

S adapter on SmartCAU Plus 3 detects beacon frames from its own PI. SmartCAUPlus 2 must have wrapped for this to happen. SmartCAU Plus 3 wraps at RI.PI of SmartCAU Plus 3 and S of SmartCAU Plus 2 monitor the faulty segment; whenrepaired (i.e. the cable is replaced), the ports will unwrap.


__________________________________________________________________________________Student Notes


2.3.9 Lobe Faults

SmartCAU Plus Isolation of Lobe Faults

1) TR 2L detects beaconing

2) Wraps RI and RO to isolate this TR 2L

3) Checks each TR 20SE/UE in turn to identify

which TR 20SE/UE

4) Checks ports using Binary Chop to

identify which port

5) Isolates and locks out port

6) Unwraps RI and RO, returns to normal

Figure 12 - SmartCAU Plus Isolation of Lobe Faults

Ring speed faults are detected by the SmartLAM Plus UTP / SmartLAM STP ringspeed detection hardware resulting in the offending port being disabled. The LEDflashes red. Other faults, i.e. lobe faults, are located and isolated with SmartCAUPluss fault detection software.

The above diagram shows how the SmartCAU Pluss internal fault detection softwareworks:

1. Workstation disrupts the ring2. SmartCAU Plus begins beaconing3. It wraps RI and RO to ensure that the rest of the ring can continue to work4. It locates the LAM causing the fault by isolating each in turn5. It then locates the port where the fault is located by isolating blocks of ports(binary chop)6. The port is disabled and the red LED above it flashes to indicate the port is in afault state7. SmartCAU Plus unwraps RI and RO

Faults are located in a few seconds; there is little disruption to other users.


__________________________________________________________________________________Student Notes


2.3.10 Ring Speed Detection

SmartLAM Plus UTP/STP Speed Detect

TR 20SE/UE has special hardware to measure ring speed ofnode inserting

Node set to wrong speed never allowed to insert into ring

Absolutely no disruption to other users on the ring

16 Mbps

4 Mbps

Figure 13 - SmartLAM Plus UTP/STP Speed Detect

A special feature of the SmartLAM Plus UTP / SmartLAM STP hardware is thespecial circuitry designed to measure the ring speed of nodes attempting to insert. Ifthe ring speed is wrong, the port will be disabled and the node never inserts; thus thereis no disruption to other users.

This feature is only present when the SmartLAM Plus UTP / SmartLAM STP isconnected to the SmartCAU Plus.Be aware that IBM LAMs do not have this capability. Even when connected to aMadge SmartCAU Plus. If a node which is set to the wrong ring speed inserts, thenormal error recovery functions will come into play, i.e. the ring will beacon while theSmartCAU Plus isolates the LAM, then the port. Although this is very quick, it is NOTring speed detect and some disruption and therefore errors will occur.

F


__________________________________________________________________________________Student Notes


2.3.11 SmartCAU Plus Repeater Function

SmartCAU Plus Repeater Function

Trunk Max

UTP Cat 4/5 100m

STP 16 Mbps 200m

STP 4 Mbps 400m

Fiber 2000m

Figure 14 - SmartCAU Plus Repeater Function

Token Ring nodes repeat the signal, so since the SmartCAU Plus has three nodes, eachwill perform this function. The signal is repeated on input by the PI node before havingsent around the LAM ports. The signal returning from the LAM ports is repeatedbefore being put on the trunk cable to the PO node. This means that physically largerings can be constructed without the need for separate ring repeaters.In contrast, most chassis hub concentrators only have one MAC, and are thereforeunable to repeat the signal on the backup path. With chassis hubs, the inter-hubdistances are contrained by the ARL without the additional expense of repeatermodules which usually consume one expansion slot.

Either fibre or copper cables are supported. You may even mix them on the sameSmartCAU Plus (e.g. have fibre on RI and copper on RO). Longer inter-SmartCAUPlus distances are best supported using a fibre trunk cable.


__________________________________________________________________________________Student Notes


2.4 SmartLAM Plus UTP/STP Product Information

SmartRAM STP Front and Rear Panel

Power CableConnector

Management Cable

Connectors

Access Ports

Fan Token RingSTP Connectors

Serial Port

Reset Button Speed Select Button

Figure 15 - SmartRAM STP Front and Rear Panel

Front Panel:LEDs on the top of the SmartRAM STP indicate power and ring speed; the buttonsare to reset the SmartRAM STP and to change the ring speed. When the ring speed ischanged, the SmartRAM STP will reboot and come up at the new speed.

Rear Panel:There are two sets of ports (management and Token Ring connectors) to connect upto two SmartLAM Plus UTP / SmartLAM STP to the SmartRAM STP. Again,remember to put the SmartLAM Plus UTP before the SmartLAM STP in ringsequence.The SmartRAM STP also has three access ports to connect, e.g. an STP, hub like theMAU, to the unit.Although you can connect an STP hub, UTP hub or fiber hub (using an optional FTLmodule) to your SmartRAM STP, you can only connect one at a time.

F


__________________________________________________________________________________Student Notes


In summary:Device AttachmentsTR20U UTP stations

Hub lobe-port (UTP, STP or fibre)TR20UE

TR20S STP stationsHub lobe-port (UTP, STP or fibre)TR20UE and TR20SE (one of each or two of the same)

See also figure below.

SmartRAM Plus UTP/STP Media Filters

n TR 20 S will support

TR 20 UE/SEs orMAUs

UTP must comebefore STP in the ringorder

n TR 20 U will support

UTP TR 20 UE/ and thirdparty LAMs only

Figure 16 - SmartRAM Plus UTP/STP Media Filters

The SmartRAM STP is able to support SmartLAM Plus UTP, SmartLAM STP andMAUs. However, you have to connect the UTP module before the STP module in thering sequence (ports are numbered).

The SmartRAM Plus UTP only supports the SmartLAM Plus UTP or third party UTPLAMs.


__________________________________________________________________________________Student Notes


SmartRAM Plus UTP/STP Access Ports

n Using Access Port TR 20S/U is downstream of

TR 2L

TR 20UE/SE on TR 2L

MAU

LRH

Figure 17 - SmartRAM Plus UTP/STP Access Ports

The access port supports 5V, so it will open a MAU lobe port immediately onattachment; no reset or TrueView intervention is necsssary.

SmartRAM Plus UTP/STP TokenRing Connectors

n Using Token Ring Connectors TR 20 U/S isupstream of

TR 20 UE/SE (LAM) onTR 20U/S

MAU

Figure 18 - SmartRAM Plus UTP/STP Token Ring Connectors

You may also connect the RI port of the MAU to the D9 LAM connector on the backof the SmartRAM STP. However, LAM connectors are only checked during startup ofthe RAM. So, if you attach a SmartLAM Plus UTP/STP, third party LAM or MAU tothe SmartRAM Plus UTP/STP whilst on, you need to reset it.

F


__________________________________________________________________________________Student Notes


Do not connect a MAU or STP LAM to a SmartRAM Plus UTP because ofimpedance matching problems.

2.4.1 Introducing the 1U SmartRAM Plus UTP

1U SmartRAM Plus UTP

Figure 19 - Introducing the 1U SmartRAM Plus UTP

The 1U SmartRAM Plus UTP is the latest addition to the RAM family. One of themajor differences between this model and its predecessor is that the switches are nowon either side of the ports panel.

2.5 SmartCAU Plus and SmartRAM Plus UTP/STP Inter-Connectivity

SmartCAU Plus and SmartRAM PlusUTP/STP Connectivity

TR 20S I

TR 20S III

TR 20S IV

TR 20S II

TR 2L

MAU VMAU IV

MAU II

MAU III

MAU I

TR 20UE I

TR 20UE II

Figure 20 - SmartCAU Plus and SmartRAM Plus UTP/STP Connectivity


__________________________________________________________________________________Student Notes


The above diagrams shows all possible connections between SmartCAU Plus,SmartRAM Plus UTP/STP, SmartLAM Plus UTP/STP and MAUs:

TR2L to MAU I using TR2L RO to MAU RITR2L to MAU II using TR2L LAM port to MAU RITR2L to TR20UE I using TR2L LAM port to TR20UE LAM connectorTR2L to TR20S II using TR2L RI to TR20S II LAM connectorTR20S I to MAU I using TR20S STP access port to MAU node portTR20S II to MAU IV using LAM connector to MAU RITR20UE I to TR20S II using TR20UE lobe port to TR20S III UTP access

portMAU IV to MAU V using MAU RO to MAU RIMAU III to TR20S IV using TR20S STP access port to MAU node port

2.5.1 Lobe Cable Lengths

SmartCAU Plus and SmartRAM PlusUTP/STP Lobe Cable Lengths

Cable typeRing speed

4 Mbps 16 Mbps

STP

UTP

Type 1

Type 2

Type 6

Type 8

Type 9

Category 3

Category 4

Category 5

Not recommended

375m

375m

145m

145m

185m

250m

250m

120m

160m

160m

100m

100m

95m

95m

70m

Figure 21 - SmartCAU Plus and SmartRAM Plus UTP/STP Lobe Cable Lengths

These are lobe cable lengths, not ARLs. Since the signal is repeates at each hub, is noconcept of an ARL on a SmartCAU Plus. With a SmartRAM Plus UTP/STP attachedto a SmartCAU Plus, you in effect may double the distances.Lobe length applies from SmartRAM Plus UTP/STP to SmartCAU Plus, and also fromSmartRAM Plus UTP/STP to the PC.


__________________________________________________________________________________Student Notes


The cabling distances in this table apply to Madge and IBM 16/4 Token Ring adapters.Other vendors adapters may not support these distances.

SmartCAU Plus and SmartRAM PlusUTP/STP Lobe Cable LengthsWhy longer distances?

375m 375m

n Signal is regenerated at nextstation

n On a TR 2L with only one station,the regeneration would be the PO

n On a TR 2L with two stations, theregeneration would be at the nextstation

n Distances also take into accountinternal cabling on the TR 2L andTR20SE/UE

Figure 22 - Why longer distances?

SmartCAU Plus and SmartRAM Plus UTP/STP both are active, intelligent hubs, thusthe signal is regenerated at the next station or at the PO, should there only be onestation on the SmartCAU Plus.

F


__________________________________________________________________________________Student Notes


2.5.2 SmartRAM Plus UTP Uses

SmartRAM Plus UTP/STP UsesRemote SmartRAM Plus UTP/STP

100m UTP @ 16Mbps

145m STP @ 16Mbps

145m STP@ 16Mbps

100m UTP@ 16Mbps

100m UTP@ 16Mbps

145m STP@ 16Mbps

100m UTP@ 16Mbps

Figure 23 - Remote SmartRAM Plus UTP/STP

Using the STP and UTP access port on the back of the SmartRAM Plus UTP/STP,you may inter-connect a remote SmartRAM Plus UTP/STP to a Token Ring port on aSmartCAU Plus. The big advantage of this setup is the inter-connection of a smallnetwork over reasonably long distances (e.g. between floors), since the signal isrepeated before reaching the lobe ports.You should take care, though, to eliminate any interfering signalling from light, heat ormagnetic sources as much as possible, to avoid interference in your Token Ringnetwork.

SmartRAM Plus UTP/STP UsesWorkgroup Concentrator

Backbone Segment

Bridges

User Segments(Max 60 users)

Figure 24 - SmartRAM Plus UTP/STP Workgroup Concentrator


__________________________________________________________________________________Student Notes


The SmartRAM Plus UTP/STP is ideal for small workgroups. The diagram aboveshows how the SmartRAM Plus UTP/STP can be effectively used to segment a largenetwork into small workgroups using Token Ring bridging.Each segment will be able to support up to 60 users, which will guarantee a higherbandwidth allocation ratio than a segment with up to 180 users. All servers areinstalled in the backbone SmartRAM Plus UTP/STP , which means that each user hasto travel equal distances to attach to the servers.

SmartRAM Plus UTP/STP UsesBranch Office

100m UTP @ 16Mbps

145m STP @ 16Mbps

Branch Office(Max 60 users)

Figure 25 - SmartRAM Plus UTP/STP Branch Office

This is yet another classic application for the SmartRAM Plus UTP/STP . Since theSmartRAM Plus UTP/STP is effectively an integrated SmartCAU Plus and SmartLAMPlus UTP/STP, it becomes a very cost-effective solution for branch offices withouthindering any expansion plans. As the branch office grows, additional SmartLAM PlusUTP/STP can be attached to the SmartRAM Plus UTP/STP.


__________________________________________________________________________________Student Notes


2.6 Summary

The Madge Intelligent Hub family can be split into two groups:- CAU / RAM (SmartCAU Plus and SmartRAM Plus UTP/STP- LAM (SmartLAM Plus UTP/STP).

Each SmartCAU Plus can have up to 4 SmartLAM Plus UTP/STP or a mixture ofboth attached to it, however care has to be taken to put the SmartLAM Plus UTPbefore the SmartLAM STP in the Token Ring sequence.

The SmartCAU Plus has a RI and RO module, which can be UTP, STP or fiber orany combination of the three to connect with other SmartCAU Pluss.

All hubs adhere to the 802.5 Token Ring standard and are therefore compatiblewith IBM and multi-vendor equipment.

The front panel of the SmartCAU Plus has LED indicators for the ring speed andthe status of the attached SmartLAM Plus UTP/STPs, as well as an LCD panel togive a detailed description on the SmartCAU Pluss operation.

The rear panel of the SmartCAU Plus has four pairs of connectors (managementD25 connectors and Token Ring D9 connectors) to attach four SmartLAM PlusUTP/STPs to the unit. The Token Ring D9 connector can also be used for stationattachment, since it will accept 5V. The serial connector is for a serial connection tothe SmartCAU Plus.

The SmartCAU Plus has 3 Token Ring MAC addresses: Port In, Port Out andSecondary.

RI and RO of the SmartCAU Plus can be independently wrapped, giving fourpossible wrap states. Note, that wrapping my divide your Token Ring into twoseparate segments.

&


__________________________________________________________________________________Student Notes


The SmartCAU Plus is able to recover from trunk and lobe cable faults throughautomatic fault detection, location and isolation. No operator intervention isrequired.

The SmartLAM Plus UTP/STP has speed detection, which prevents a station tryingto insert at the wrong ring speed from joining the ring.

The SmartCAU Plus has a repeater functions, which means that it is not constrainedby any ARL limitations.

The SmartRAM Plus UTP/STP can attach up to two SmartLAM Plus UTP/STP orIBM LAMs. Again, care has to be taken to put the UTP module before the STPmodule in the ring sequence to guarantee impendance matching. In addition, theSmartRAM UTP/STP has one access port, supporting three media types: UTP,STP and FTL.

A MAU can be attached to the SmartRAM UTP/STPeither by connecting one ofthe node ports to the SmartRAM UTP/STP access port or by connecting one of theSmartRAM UTP/STP LAM ports to the RI port of the MAU.

SmartCAU Plus, SmartRAM UTP/STP , SmartLAM Plus UTP/STP and MAU canall be inter-connected to form a large Token Ring network, although it is notrecommeneded to have a MAU in the same layer as intelligent hubs.

SmartCAU Plus and SmartRAM Plus UTP/STP are capable of supporting longerlobe cable lengths, since the signal is regenerated at the next station.


__________________________________________________________________________________Student Notes


2.7 Self-Study Questions

1. The SmartCAU Plus is the equivalent to the IBM8230 or a multi-vendor CAU.

True False

2. How many SmartLAM Plus UTP/STP can be attached to a SmartCAU Plus?

a) 2b) 4c) 15d) 20

3. A SmartRAM Plus UTP with two SmartLAM Plus UTPs can have to up 60stations attached.

True False

4. You are able to attach a combination of up to 4 SmartLAM Plus UTP/STP andLAMs to the SmartCAU Plus.

a) True, but the multi-vendor LAMs have to be first in the ring sequenceb) False, we only allow the attachment of Madge units to the SmartCAU Plusc) True, but the UTP units have to be first in the ring sequenced) False, you can only attach 2 units to the SmartCAU Plus

@


__________________________________________________________________________________Student Notes


5. The RI/RO modules on the SmartCAU Plus can be _________________________.

a) copper connectors onlyb) only STP and / or UTPc) fibre connectors onlyd) fibre and / or copper connectors

6. You will be able to attach a station to the Token Ring D9 connector at the back ofthe SmartCAU Plus.

True False

7. How many node addresses does the SmartCAU Plus have?

a) 1, since this is only once Token Ring unitb) 2, one for each portc) 3, one for each primary port and one for the secondary portd) 4, one for each LAM port

8. The SmartCAU Plus is capable of automatic fault recovery; this, however, has to beenabled by the operator.

True False

9. If RI of a SmartCAU Plus wraps, RO of that SmartCAU Plus has to wrap too.

True False

10. During speed detection of the SmartLAM Plus UTP/STP, the station inserting atthe wrong ring speed will briefly join the ring.

True False


__________________________________________________________________________________Student Notes


11. The SmartCAU Plus has a repeater function, which makes the ARL obsolete,because __________ .

a) the SmartCAU Plus is an intelligent hubb) it supports different kind of mediac) it has two MAC addressesd) it has an internal media filter

12. The SmartRAM Plus UTP/STP can have up to _______ SmartLAM PlusUTP/STP and / or LAMs attached to it.

a) 1b) 2c) 3d) 4

13. The SmartRAM Plus UTP/STP has three access ports, one for STP, one for UTPand one for FTL.

a) False, there are two: one for STP / UTP and one for FTLb) False, there is one: one for STP / UTP or FTLc) Trued) There are no access ports on the SmartRAM Plus UTP/STP

14. Name the two ways of connecting a MAU to the SmartRAM STP.

a)......................................................................................................................

b)......................................................................................................................


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2.8 Workshop One - Intelligent Hub Inter-Connectivity

2.8.1 Cabling the LANstack

You will work with a rack consisting of one or more SmartCAU Pluss, SmartLAMPlus UTP/STPs, SmartRAM Plus UTP/STPs and MAUs. The objective is toestablish how many ways there are to configure these particular hubs so that they allwork togetherRecord your results below listing the ports used on each device.

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

What are the benefits and drawbacks of each method of cabling up the hubs? (somepoints to consider are what happens if a hub or trunk cable fails)

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

:


__________________________________________________________________________________Student Notes


What is your conclusion on how to connect these products together?

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

2.8.2 Automatic Fault Detection

Having interconnected the SmartCAU Pluss, SmartLAM Plus UTP/STPs andSmartRAM STP/UTPs, record what happens, when you pull out any one of theconnections (observe the LEDs and LCD display of the units).

a) Disconnect the RO cable from the SmartCAU Plus:

....................................................................................................................................

.....................................................................................................................................

b) Disconnect the LAM Token Ring connector from the back of the SmartCAU Plus:

.....................................................................................................................................

.....................................................................................................................................

c) Disconnect the RI cable from the MAU:

.....................................................................................................................................

.....................................................................................................................................


__________________________________________________________________________________Student Notes


Any other disconnections and the results you have observed:

.....................................................................................................................................

....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

2.8.3 Speed Detect

1. Install a 16/4 Token Ring adapter into a PC and connect it to a SmartLAM PlusUTP/STP. Configure the adapter for the correct ring speed and run MadgeODI.COMfor a Madge adapter or TOKEN.COM for an IBM adapter. What do you observe?

.....................................................................................................................................

Did the adapter insert?

.....................................................................................................................................

Why?

.....................................................................................................................................

.....................................................................................................................................


__________________________________________________________________________________Student Notes


2. Reboot your PC and configure the adapter for the incorrect ring speed and load thedriver again. What do you observe?

.....................................................................................................................................

Did the adapter insert?

.....................................................................................................................................

Why?

.....................................................................................................................................

3. Repeat the above two excercises using a MAU port. What is the difference? Recordyour observations.

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................

.....................................................................................................................................


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3. TrueView Management for Intelligent Hubs

3.1 Objectives

By the end of this session, you will be able to: Explain how the TrueView platform is integrated and which management protocols

it uses Navigate around TrueView CAU Manager Manage the SmartCAU Plus, SmartRAM Plus UTP/STP and SmartLAM Plus

UTP/STP Describe what each of the functions in TrueView does Use Traffic Monitor to manage the traffic in your network Use the Timed Authorisation and Security settings to configure a secure network Configure alerts and where they should be sent to Use Alert Manager to troubleshoot your Token Ring network

3.2 Introduction to TrueView

TrueView is a network management system that runs under a number of differentmanagement platforms, including a standalone version that is typically supplied withMadge devices. Management platforms are often called umbrella applications intowhich you can snap-in device management modules such as CAU Manager.

TrueView as a standalone platform enables you to simplify network management byarranging the devices that are discovered on the network into group folders of yourchoice. You can use TrueView to configure the network management station, launchapplication for discovered devices and take advantage of a range of networkmanagement tools. The management features provided by TrueView depend upon theTrueView applications that you have installed.


__________________________________________________________________________________Student Notes


SmartCau Plus and SmartRAM PlusUTP/STP ManagementUnique Network Management Flexibility

SNMP Telnet

TR 2LTR 2LTR 20S/UTR 20S/U

Out-of-bandManagement

IBM LAN NetworkManager

& NetView

GraphicalWindows-basedMadge TrueView

Standards based management

Figure 26 - Unique Network Management Flexibility

Madge provides a suite of management application platforms that performmanagement functions appropriate to particular types of network devices.The management applications that are supplied depend upon the product you ordered.For example, if you purchase a SmartCAU Plus, you are supplied with TrueView,TrueView CAU Manager and TrueView Alert Manager. Other TrueView applicationscan be ordered separately.

IBM-Compatible ManagementHLM over IPX


__________________________________________________________________________________Student Notes


HLM defined to work over source-routing bridges

Madge extended HLM to work over IPX routers

Management of TR 2L located on the far side of an IPXrouter

Supported only in Madge management software

TrueViewTR 2L Manager TR 2L

HLM Protocolover IPX

IPX Router orNetware Server

Figure 27 - IBM Compatibility through HLM over IPX

The HLM protocol is defined to work over source-routing bridges. Madge extendedthe HLM protocol to work over IPX routers. Used for management of SmartCAUPluss located on the far side of an IPX router or NetWare bridge.

HLM over IPX only works between Madge management software and the SmartCAUPlus. IBM CAUs cannot be managed over IPX routers. IBM LAN Network Managerwill not be able to see the SmartCAU Plus on the far side of an IPX router.

SNMP Management

TR 2LTR 20U/S

IP or IPX router

SNMP ManagementSystem

n Systems supported include:

HP OpenView for UNIX

HP OpenView for Windows

IBM NetView/6000

MIBs available:

MIB-II

Internet Hub MIB

RMON

Figure 28 - SNMP Management of the SmartCAU Plus / SmartRAM Plus UTP/STP

In addition to the IBM compatible management, the SmartCAU Plus supportsmanagement using SNMP. SNMP is the de-facto standard for network management,but it is not implemented on the IBM 8230 CAU.

F


__________________________________________________________________________________Student Notes


SNMP is supported over IP and IPX, which means the SmartCAU Plus can bemanaged across IP and IPX routers - even across remote routers. SNMP support onthe SmartCAU Plus means it can be managed from SNMP management systems suchas the ones shown the above figure.

The default password is public.

Out-of-Band Management

Dial-up link

Remote Office

TR 2LTR20 U/S

Modem Modem

VT100 terminal orterminal emulator

Figure 29 - Out-of-Band Management

Out-of-band management means management using a media other than the Token Ringnetwork itself. The SmartCAU Plus has a serial port on the back which allows aVT100 terminal or modem to be attached to it. The modem allows a remoteSmartCAU Plus to be managed over normal Telecomms lines from a central headoffice.

3.3 Using TrueView

TrueView is started by double-clicking on the TrueView icon.

F


__________________________________________________________________________________Student Notes


TrueView consists of a main window that provides an overview of the manageableobjects in your network. By setting up the management applications you install, youcan decide how objects appear in the window.

By default, the auto-discovery feature for the installed TrueView applications isswitched on, thus devices on the network will be discovered automatically. Thediscovered devices will be displayed as icons and placed in the Discovery GroupFolder.

If you run applications under the TrueView management platform, you are presentedwith a main window that you can use to access the management applications that areinstalled. The TrueView window is shown below.

TrueView Window

Menu BarTool Bar

TR2L Icon

Minimised Folder

Discovery folder

Group folderwith list icons

Status Bar

TR20U/S Icon

Figure 30 - TrueView Window

You can create a new group folder and move icons from the Discovery folder into it,or add icons manually to the new group folder. You can move the icons by selectingthem, clicking on the Move button on the TrueView toolbar, and nominating a differentfolder. Alternatively, you can drag and drop the icons into a different folder.


__________________________________________________________________________________Student Notes


The contents of each group folder can be presented as large icons, small icons, or a listof small icons. To choose the way icons are presented, click on either the Large Icons,Small Icons, or List Icons button on the TrueView toolbar.You can choose whether TrueView arranges the icons automatically, or only when youuse the Arrange command, by clicking on the Arrange Icons command on theTrueView toolbar. You can also determine the way the icons are arranged by clickingon the Sort by Name, Sort by Type, or Sort by Status buttons on the TrueView toolbar.

3.4 SmartCAU Plus and SmartRAM Plus UTP/STP Management

When you start up the management application for a device such as a hub, mostTrueView applications display a picture of the device that is updated at regularintervals while the management connection remains active.The picture represents the ports, Liquid Crystal Display (LCD) and indicators as theyappear on the actual device. To access information about the device, click on thetoolbar buttons or the hotspot areas on the picture.For example, the following picture shows the dialog box, and all the possible hotspotcursors, that can be displayed by TrueView CAU Manager when you manage a MadgeSmartCAU Plus.

SmartCAU Plus Main Window


__________________________________________________________________________________Student Notes


Exit InformationFan Speed

Traffic Information

Paddle switch

Reset button

LCD Display

Node address

Status LED

LAM LEDs

Ring speed

Figure 31 - SmartCAU Plus Main Window

TrueView device management applications enable you to access management featuresusing hotspots on the picture of the device. When you move the pointer over an area,the cursor changes to indicate that you can click on the hotspot.

You can view the messages that are shown on the LCD panel for the SmartCAU Plus.You can either view the messages one at a time by clicking the paddle switch, or clickon the LCD to display a dialog box containing all the messages.

SmartRAM Plus UTP/STP Main Window

Exit Information

Fan Speed

Traffic Information

Reset buttonNode address

Status LED

Ring speed

Figure 32 - SmartRAM Plus UTP/STP Main Window

The management features that you can use depend on whether you have established alink to the SmartCAU Plus or SmartRAM Plus UTP/STP that you are managing. Ifyou do not establish a link to the SmartCAU Plus or SmartRAM Plus UTP/STP, you


__________________________________________________________________________________Student Notes


can still view the information about the device, but you cannot change information,enable or disabled ports, implement security features or download a new microcodeversion.

Information Window

Figure 33 - Information Window

You can configure information about the SmartCAU Plus, SmartRAM Plus UTP/STPusing the information dialog box. The information that you configure depends on thetype of device that you are managing. For a SmartCAU Plus, you can configure thename, location, comments, password and base address. You can also view the status ofthe device.

Temperature and Fan Speed


__________________________________________________________________________________Student Notes


Figure 34 - Temperature and Fan Speed

You can also view the internal temperature and the fan speed for the device.

If you want to monitor traffic from the SmartCAU Plus you have to enable SNMPRemote Monitoring (RMON). If you enable promiscuous mode RMON, you candefine whether the SmartCAU Plus or SmartRAM Plus UTP/STP announce that it isoperating in promiscuous mode.

Traffic Monitor

Figure 35 - Traffic Monitor


__________________________________________________________________________________Student Notes


TrueView CAU Manager can display traffic on a SmartCAU Plus or SmartRAM PlusUTP/STP as a graph. You can configure the graph and save up to four differentconfigurations. The Traffic Monitor dialog box is only available if you have a link tothe device, and Traffic Monitor is enabled in the Miscellaneous Information dialog box.The graph shows the traffic on the SmartCAU Plus, SmartRAM Plus UTP/STP orCAU for the last 60 seconds, 60 minutes or 60 hours. You can select whether youwant the graph to record in seconds, minutes or hours. When you change from oneunit of time to another, CAU Manager resets the graph. To make it easier to identifythe lines on the graph, you can display a legend that lists the colour associated witheach value. The legend only includes values that you enable using the Optionscommand.

3.5 Managing the Ports

When you are linked to a SmartCAU Plus or SmartRAM Plus UTP/STP, you canmanage ports on the SmartCAU Plus or SmartRAM Plus UTP/STP and theSmartLAM Plus UTP/STP that are connected to the device. You can enable or disableports, find out the status of the port and implement security features on the port.

You can manage the following ports: RI and RO ports on the SmartCAU Plus Access ports on the SmartRAM Plus UTP/STP SmartLAM Plus UTP/STP ports on SmartCAU Pluss and SmartRAM Plus

Node ports on SmartRAM Plus UTP/STPs

TrueView CAU Manager always indicates which node ports on SmartRAMs andLAMs are in use. In addition you can choose to view the addresses of nodes that areconnected to node ports.

Wrapping RI - RO of the SmartCAU Plus


__________________________________________________________________________________Student Notes


Figure 36 - Wrapping RI - RO of the SmartCAU Plus

You can wrap the RI and / or RO port on a SmartCAU Plus. If both the RI and theRO ports wrap, or if one port is wrapped on the SmartCAU Plus and another port iswrapped on another CAU, some users may lose access to the network.Equally, you can wrap the SmartRAM Plus UTP/STP Access port. Again, if you wrapthe port, some users may lose access to the network.

Managing SmartLAM Plus UTP/STP Ports

Figure 37 - Managing SmartLAM Plus UTP/STP Ports


__________________________________________________________________________________Student Notes


You can enable or disable the state of a SmartLAm Plus UTP/STP port on aSmartCAU Plus or SmartRAM Plus UTP/STP. You can also determine whether thedevice performs automatic speed detection. The dialog box also shows which nodeaddress is attached to the port.If a passive hub is attached to the port, the usage of the port will be defined as multi.You will be able to view all the node addresses attached to this port by clicking theAddresses button.

3.6 Security and Fault Finding

TrueView CAU Manager implements timed authorisation features for all devices, andthe node athorisation features for the SmartCAU Plus and IBM CAU. To use timedauthorisation features on any device, or node authorisation features on a SmartCAUPlus or IBM CAU, run CAU Manager on the management station at all times.

For each ring, you can implement the following security policies: Restriction of access to authorised times of the day and week Restriction of access by Madge adapters, IBM adapters, or Madge and IBM

adapters Reporting or removal of nodes that are promiscuous mode (PM) unsafe or cause

PM violations Reporting or removal of rogue nodes that prevent the SmartCAU Plus or

SmartRAM Plus UTP/STP from discovering their node address Nomination of authorised managers and trap destinations for stations using SNMP

to manage device


__________________________________________________________________________________Student Notes


Timed Authorisation Security Configuration

Figure 38 - Timed Authorisation Security Configuration

You can configure authorised access times for a ring. The SmartCAU Plus orSmartRAM Plus UTP/STP provides access to the ring between the times and days youspecify. For example, you can use the timed authorisation feature to prevent weekendaccess to the network.There are different actions that the SmartCAU Plus or SmartRAm Plus UTP/STPtakes in the event that security violations occur. You can define the action to be: a) ignore - specifying that no action is taken in response to the security violation b) inform - specifying that an alert is produced when a security violation occurs c) remove - specifying that the offending node is removed from the network


__________________________________________________________________________________Student Notes


Security Settings Dialog Box

Figure 39 - Security Settings Dialog Box

Timer Poll Defines the frequency with which the TR2L or TR20U/S pollsnodes on the ring to find out their node address and determinewhether they are promiscuos mode safe.

Reply timeout The amount of time the TR2L or TR20U/S waits for a reponseto the poll.

No. of retries The number of times the TR2L or TR20U/S retries the poll, inthe event of a timeout. If no response is received after thespecified number of retries, the TR2L or TR20U/S identifies thenode as a rogue node and takes the action you have specified.

PM Violations The action that the TR2L or TR20U/S takes when it detects anode in promiscuous mode.


__________________________________________________________________________________Student Notes


PM unsafe The action that that TR2L or TR20U/S takes when it detects anode that is promiscuous mode unsafe. These are nodes that maybe able to use promiscuous mode without being detected byCAU Manager.

Rogue Node A address which has been identified by the TR2L or TR20U/S asinvalid or faked. Nodes not using LAAs are considered rogue iftheir address differs from their burnt-in address.

IllegalManufacturer

A node that is different from the list of valid manufacturersspecified in the security setup of CAU Manager.

Node Access Nodes with addresses that are not specified in the AddressAuthorisation settings.

Fault Finding Dialog Box

Figure 40 - Fault Finding Dialog Box

If you are also running TrueView Ring Manager, you can implement fault-findingfeatures for the SmartCAU Plus and SmartRAM Plus UTP/STP. The Faults dialog box


__________________________________________________________________________________Student Notes


enables tou to choose whether CAU Manager ignores, detects or removes certaintypes of failure according to thresholds you define.

You can specify thresholds and actions for the fault conditions that CAU Manager candetect and remove:

Nodes that fail to take part in the Neighbour Notification process Nodes which repeatedly beacon Nodes which repeatedly purge the ring Nodes which consistently cause isolating errors

When the threshold is exceeded, or when a Ring Poll Failure condition is detected,CAU Manager takes the specified action to remove the faulty node.

3.7 TrueView Alert Manager

TrueView Alert Manager enabled you to manage alerts associated with devices on thenetwork for which you have installed TrueView management software. For example, ifyou install TrueView CAU Manager, you can configure alerts relating to theSmartCAU Plus, SmartRAM Plus UTP/STP and IBM8230 Token Ring NetworkControlled Access Unit (CAU).

You can view a list of the alerts that have been logged by Alert Manager. To view alist of alerts, double-click on the Alert Manager icon, which is the picture of a bell(ringing, if there are alerts to be viewed).


__________________________________________________________________________________Student Notes


Alert Manager Dialog Box

Figure 41 - Alert Manager Dialog Box

When you double-click on the Alert Manager icon, Alert Manager displays the Alertsdialog box and updates the list as it logs new alerts.

You can view a table of logged alerts in the Alerts dialog box. You can: find out the meaning of an event save the table information to a file print the table information show, hide, resize ore rearrange the columns


__________________________________________________________________________________Student Notes


Alert Manager Configuration

Figure 42 - Alert Manager Configuration

You can also specify the way in which Alert Manager handles each type of event thatcan occur. For example, you can specify that each time a node is disabled on a LAMport, Alert Manager logs the alert, displays a popup window or plays a wave file.


__________________________________________________________________________________Student Notes


3.8 Summary

TrueView is a network management system, providing support for Madge and IBMdevice management.

TrueView supports management over HLM, SNMP (over IP and IPX), TELNETand Out-of-band (i.e. Telecommunication connection) to the devices. IBM CAUs,however, do not support SNMP.

Since TrueView is supported over IP and IPX, there is no problem in managingdevices over IP and / or IPX router and even remote networks.

By default, all devices that are autodiscovered go into the Discovery folder. Youcan create new group folders and move the discovered devices between folders.

Double-clicking on a device icon will display an up-to-date picture of the device,allowing you to access information about the device and manage it.

The dialog box of the SmartCAU Plus or SmartRAM Plus UTP/STP has certainhotspots that appear as your mouse across the picture. Clicking on those hotspotswill open dialog boxes to configuration and information windows on the device.

In the information window, you can enter details about the device, such as name,location and passwords. You can also enable promiscuous mode RMON from here,configure IP addresses, check versions and link to the device.

Once you have enabled promiscuous mode, you will be able to view traffic statisticscollected by each device using the Traffic Monitor.

You can also manage ports on the SmartCAU Plus, SmartRAM Plus UTP/STP andSmartLAM Plus UTP/STP, such as RI and RO ports of the SmartCAU Plus, accessports on the SmartRAM Plus UTP/STP and all node ports on the SmartRAM PlusUTP/STP and SmartLAM Plus UTP/STP; in addition you can view which nodeaddress(es) are attached to which port.

&


__________________________________________________________________________________Student Notes


In order to manage any of the ports, double click on it and, in the appearing dialogbox, configure the port. Note that this can only be done once you have linked thedevice.

Timed Authorisation Security Configuration allows you to limit the access times ofthe ports to the working days of the week, for example, by defining a start and stoptime for each port.

In the Security Settings and Fault Finding dialog boxes you can define what actionthe device is going to take if a certain security violation has occurred, such asignore, inform or remove.

TrueView Alert Manager is the watchdog of the network management system,alerting you to any fault or error conditions occurring in your network.


__________________________________________________________________________________Student Notes


3.9 Self-Study Questions

1. Which is the TRUE statement?

a) The management applications supplied depend upon the product you ordered.b) Alert Manager is an application which has to be purchased separately.c) HLM over IPX only works between the TrueView and IBM CAUs.d) SNMP can be used to manage all devices in the network, including IBM 8230s.

2. By default, all discovered devices, will be placed in the _______________ folder.

a) default groupb) discovery groupc) generic groupd) Madge group

3. The information for the device is only updated when the device remains an icon. Noupdates will be done during the picture display of the device.

True False

4. Without a link to the SmartCAU Plus or SmartRAM Plus UTP/STP, you will not beable to view any information.

True False

@


__________________________________________________________________________________Student Notes


5. If you want to monitor traffic on the SmartCAU Plus or SmartRAM Plus UTP/STP, you have to ________________ .

a) start the traffic monitor applicationb) enable RMON promiscuous mode on the devicec) buy an additional Traffic Monitor applicationd) wait for the device to announce that it is in promicuous mode

6. Name three kinds of ports that can be managed using TrueView CAU Manager.

a)........................................................................................................................

b)..........................................................................................................................

c)..........................................................................................................................

7. Timed Authorisation security features can also be used when the networkmanagement station is switched off.

True False

8. Name the three actions that can be taken by the management station in the event ofsecurity violations.

a)..........................................................................................................................

b)..........................................................................................................................


__________________________________________________________________________________Student Notes


c)..........................................................................................................................

9. Fault finding can only be used if ____________________ is also installed.

a) Alert Managerb) Ring Managerc) Fault Managerd) Service Manager


__________________________________________________________________________________Student Notes


3.10 Workshop Two - TrueView SmartCAU Plus and SmartRAM PlusUTP/STP Management

3.10.1 LANstack TR CAU Options

TR CAU options enables you to view different labels of the SmartCAU Plus orSmartRAM Plus UTP/STP icons in the TrueView main window and to enable / disableAuto Discovery.

1. In TrueView, select the LANstack drop-down menu, TR/CAU, Options ....

Figure 43TR LANstack CAU Options

2. Change the display option to Node Address. What happens?

.....................................................................................................................................

3. To enable Auto Discovery, click the box next to it so that a cross appears andclick the OK button to confirm.

In the TrueView window the icons for the discovered devices on the network areplaced in the Discovery folder.


__________________________________________________________________________________Student Notes


3.10.2 Creating new group folders, moving icons

You may have the need to create various group folders for groups of icons, e.g. todifferentiate between different floors or sites.

1. From the File drop-down menu, select New.2. Type the name of your new group folder in the dialog box (e.g. Site 1).

Figure 44 - Creating a New Group Folder

3. Click OK button to confirm.4. A blank window with your group folder name appears. Select an icon from the

Discovery folder and drag the icon over to the new folder

You can move any icon to any folder, including the Alert Manager icon. Once youhave created all your folders you may arrange the minimised folders on a bitmap ofyour choice, e.g. a world map, and move the folders over the locations of your choice.For further information on how to do this, please refer to your TrueView manual.

3.10.3 Linking, Information, Comms Information, etc.

In order to be able to fully manage a SmartCAU Plus or SmartRAM Plus UTP/STP,you need to link to the device.

1. Double click on the SmartCAU Plus or SmartRAM Plus UTP/STP of yourchoice.2. In the CAU Manager main window, click on the blue I button.3. Enter the Name, Location, Comments and Password of your choice.


__________________________________________________________________________________Student Notes


Figure 45 - Linking to a SmartCAU Plus or SmartRAM Plus UTP/STP

4. To link to the SmartCAU Plus, click on the Link ... button, and click the Linkradio button in the dialog box; enter password, if required.

5. Click OK to confirm.

Do you notice the changes (the icon colour legend in the Help menu should be ofassistance here)?

.....................................................................................................................................

6. To select your way of communications with the SmartCAU Plus, go back intothe Information dialog box, and select the Comms ... button.

7. Here, you are given the node address, IPX and IP address of the device. Select your preferred communications protocol on the bottom of the dialog box.


__________________________________________________________________________________Student Notes


3.10.4 Traffic Monitor

In order to view the Traffic Monitor, promiscuous mode RMON has to be enabled.

1. Open the Information dialog box, and click the Misc ... button.

Figure 46 - Enabling RMON for Traffic Monitor

2. On the bottom of the Miscellaneous Information dialog box, ensure that the Traffic box is ticked. Click OK to confirm.

3. To view the traffic information, click on the Chart icon in the CAU Manager main window.

4. Click on the Clock icon to change the time interval and observe the graph.

.....................................................................................................................................

3.10.5 Viewing the Fan Speed and Temperature

To view the Fan Speed and Temperature, click on the Fan icon in the CAU Managermain window.

3.10.6 Port Management - RI/RO of the SmartCAU Plus

1. In the CAU main window, click on either the RI or RO of the CAU.


__________________________________________________________________________________Student Notes


Figure 47 - Wrapping RI of the SmartCAU Plus

2. Click the Wrapped radio button and click OK to confirm.3. Use the RI/RO LED, Alert Manager and the LCD Display of the CAU to

observe the changes:

.....................................................................................................................................

.....................................................................................................................................

3.10.7 Port Management - SmartLAM Plus UTP/STP or SmartRAM Plus UTP/STP Ports

1. In the CAU main window, click on one of the node ports.

Figure 48 - Disabling a port on the SmartLAM STP

2. Here you can see which node address is using the port. Click the Disabledradio button and click OK to confirm.

3. What happens to the node ports LED?

.....................................................................................................................................


__________________________________________________________________________________Student Notes


3.10.8 Port Management - LAM Ports and Access Ports

1. Click on a SmartRAm Plus UTP/STP icon to get into the CAU Manager mainwindow.

2. Click on the light blue I button.

Figure 49 - Managing LAM ports and Access Port on the SmartRAM Plus UTP/STP

3. Here yo

Documents

Madge Training - ringdale.com Hubs.pdf · 3.3 U SING T RUE V IEW ... 3.6 S ECURITY AND F AULT F INDING.....47 3.7 T RUE V IEW A LERT M ANAGER ... Madge Training TRN-02 Intelligent