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HUAWEI TECHNOLOGIES CO. , LTD.
www.huawei.com
Huawei Confidential
Security Level: For Internal Use Only 23/4/7
Introduction to Features of OptiX NG-SDH V100R007
Cheng Fei (ID: 42642)
HUAWEI TECHNOLOGIES CO. , LTD. Page 2Huawei Confidential
Preface
This course is developed according to new
features of OptiX NG-SDH product series
V100R007 (hereinafter referred as NG-SDH
V1R7).
This course introduces the specifications and
application of new boards of the NG-SDH
V1R7 products. After learning this course, you
can get a general understanding about the
products.
HUAWEI TECHNOLOGIES CO. , LTD. Page 3Huawei Confidential
Learning Guide
Before starting this course, learn OptiX NG-
SDH V100R001-V100R003 Product
Description and Introduction to Features of
OptiX NG-SDH V100R006 to obtain the
inheritance of different versions of NG-SDH
products.
When learning this course, refer to related
product manuals of NG-SDH V1R7 products.
This course focuses on the types and new
features of new boards of NG-SDH products.
HUAWEI TECHNOLOGIES CO. , LTD. Page 4Huawei Confidential
References
OptiX NG-SDH V100R007 product
manuals
OptiX NG-SDH V100R001-V100R003
Product Description
Introduction to Features of OptiX NG-SDH
V100R006
HUAWEI TECHNOLOGIES CO. , LTD. Page 5Huawei Confidential
Upon completion of this course, you will be able to
know:
General features and position of NG-SDH V1R7 products
New boards and main specifications of the boards of NG-SDH
V1R7 products
Main software features of NG-SDH V1R7 products
Objectives
HUAWEI TECHNOLOGIES CO. , LTD. Page 6Huawei Confidential
Contents
NG-SDH V1R7 Version Description
New Boards of NG-SDH V1R7 Products
New Functions and Application Scenarios
of NG-SDH V1R7 Products
HUAWEI TECHNOLOGIES CO. , LTD. Page 7Huawei Confidential
Overview of NG-SDH Product Series
Unified software platform
OSN 7500
Unified hardware platform
OSN 3500OSN 2500OSN 1500B
Universal line boards, tributary boards and data processing boards of OSN product
series Saving spare parts and decreasing inventory End-to-end multiservice provisioning Lower capital expenditure (Capex) and operation expenditure (Opex)
OSN 1500A OSN REG
HUAWEI TECHNOLOGIES CO. , LTD. Page 8Huawei Confidential
Overview of NG-SDH Product Series Product name: NG-SDH intelligent optical transmission equipment
Multiservice transport platform (MSTP): The platform can transmit SDH, PDH,
Ethernet, ATM/IMA, SAN, E13 and N x 64K services, which realizes efficient
transmission of voice and data services in the same platform.
Full Name Short Form
OptiX OSN 7500 Intelligent Optical Switching System OSN 7500
OptiX OSN 3500 Intelligent Optical Transmission System OSN 3500
OptiX OSN 2500 Intelligent Optical Transmission System OSN 2500
OptiX OSN REG Intelligent Optical Transmission System OSN REG
OptiX OSN 1500A Intelligent Optical Transmission System OSN1500A
OptiX OSN 1500B Intelligent Optical Transmission System OSN1500B
HUAWEI TECHNOLOGIES CO. , LTD. Page 9Huawei Confidential
Network Position of NG-SDH Product Series
The OptiX OSN1500/2500 is applied in the convergence layer and access layer of MAN transmission networks.
The OptiX OSN7500/3500 is applied in the convergence layer and backbone layer of MAN transmission networks.
OSN1500Metro500
2 。 5G 2/4FMSP 2 。 5G 2F MSP
OSN2500
MAN backbone layerMAN backbone layer
MAN convergence layerMAN convergence layer
MAN access layerMAN access layer
OSN9500
OSN 3500
OSN3500
OSN 3500 OSN1500
OSN3500
OSN2500
OSN3500
OSN3500
OSN2500OSN1500
OSN9500
OSN9500
OSN 3500
OSN9500
10G 2/4F MSP
OSN3500/7500
OSN3500/7500
Metro1000
GSM/CDMA/WCDMA
Ethernet DDNPSTN ATM。 。 。
HUAWEI TECHNOLOGIES CO. , LTD. Page 10Huawei Confidential
V1R007C02OSN V1R7C01
OSN V1R03C02
Roadmap of NG-SDH mainstream versions
2007.05
Versions of NG-SDH Product Series
OSN V1R6C02
2006.08 2007.10
NG-SDH V1R7 is the feature version of the NG-SDH equipment. The mainstream commercial version of NG-SDH V1R7 products is OSN V1R7C02.
2008.02
HUAWEI TECHNOLOGIES CO. , LTD. Page 11Huawei Confidential
Version Release of NG-SDH V1R7 Products
Version Equipment Type and NE No.
Mapping T2000OSN 7500/3500 OSN 2500/1500
V100R007C01B01B 5.21.17.12 5.36.17.12 T2000V200R005C01
V100R007C02Refer to the version
mapping table.
Refer to the version
mapping table.
Refer to the version
mapping table.
NG-SDH V1R7 is developed based on NG-SDH V1R6, with the ASON V2.0.
When this course is developed, V1R7C02 has not been released. For the version mapping relations, refer to the version mapping table used when the version is released.
For the most accurate and latest version release, refer to the Version Release Notification and Version Mapping Table.
HUAWEI TECHNOLOGIES CO. , LTD. Page 12Huawei Confidential
Summary
This section covers:
Brief introduction to NG-SDH
product series
Version release of NG-SDH V1R7
products
HUAWEI TECHNOLOGIES CO. , LTD. Page 13Huawei Confidential
Contents
NG-SDH V1R7 Version Description
New Boards of NG-SDH V1R7 Products
New Functions and Application Scenarios
of NG-SDH V1R7 Products
HUAWEI TECHNOLOGIES CO. , LTD. Page 14Huawei Confidential
List of New Boards of NG-SDH V1R7 Products
Board Type New Board Description
Cross-connect board
SST1IXCSA280G cross-connect board for the
OptiX OSN 7500
SSN1IXCSA/SSN1IXCSB160G cross-connect board for the
OptiX OSN 3500
Line board
SSN1SLD64Two-channel STM-64 line board with the XFP swappable optical
module
SSN1SLD16 Two-channel 2.5G line board
SSN3SL16&16A Newly-developed 2.5G line board
Tributary board
SSN2PQ3/PD3/PL3/PL3A12-channel/6-channel/3-
channel/3-channel E2/DS3 processing board
HUAWEI TECHNOLOGIES CO. , LTD. Page 15Huawei Confidential
SST1IXCSA
The SST1IXCSA is a new cross-connect and timing board for the OptiX OSN
7500, and implements the service grooming and system timing functions.
• Main Functions and Features
Supports VC-4 non-blocking higher-order full cross-connections and
VC-3/VC-12 non-blocking lower-order full cross-connections.
Provides flexible service grooming capability; supports cross-connect
services, multicast and broadcast services.
Supports 1+1 hot backup of boards. The protection mode is non-revertive.
Supports tact switches, and supports protection switching of cross-connect
boards without affecting services.
Supports the PRBS function.
• Backplane Service Bus
The backplane bus supports the compatibility of 622 Mbit/s and 2.5 Gbit/s bus
rates. The bus rate can be randomly adjusted according to accessed line
boards.
HUAWEI TECHNOLOGIES CO. , LTD. Page 16Huawei Confidential
• SST1IXCSA
Higher-order cross-connect capability: 360 Gbit/s
Lower-order cross-connect capability: 80 Gbit/s
Access capability: 280 Gbit/s
• SST1SXCSA
Higher-order cross-connect capability: 360 Gbit/s
Lower-order cross-connect capability: 40 Gbit/s
Access capability: 280 Gbit/s
Comparison of Cross-Connect Capability Between the T1IXCSA and the T1SXCSA
HUAWEI TECHNOLOGIES CO. , LTD. Page 17Huawei Confidential
280G access capability of the OptiX OSN 7500 subrack
The SST1IXCSA is applied in the OptiX OSN 7500 subrack. It can be inserted in slots 9 and
10. By default, the board in slot 9 serves as the active board and the board in slot 10 serves as
the standby board.
Application of the SST1IXCSA
HUAWEI TECHNOLOGIES CO. , LTD. Page 18Huawei Confidential
SSN1IXCSA/B
The SSN1IXCSA/B is a new cross-connect and timing board for the OptiX
OSN 3500, and implements the service grooming and system timing
functions.
• Main Functions and Features
Supports VC-4 non-blocking higher-order full cross-connections and VC-
3/VC-12 non-blocking lower-order full cross-connections.
Provides flexible service grooming capability; supports cross-connect
services, multicast and broadcast services.
Supports 1+1 hot backup of boards. The protection mode is non-
revertive.
Supports tact switches, and supports protection switching of cross-
connect boards without affecting services.
Supports the PRBS function.
• Backplane Service Bus
The backplane bus supports the compatibility of 622 Mbit/s and 2.5 Gbit/s
bus rates. The bus rate can be randomly adjusted according to accessed
line boards.
HUAWEI TECHNOLOGIES CO. , LTD. Page 19Huawei Confidential
• SSN1IXCSA
Higher-order cross-connect capability: 200
Gbit/s
Lower-order cross-connect capability: 40 Gbit/s
Access capability: 155 Gbit/s
• SSN1IXCSB
Higher-order cross-connect capability: 200 Gbit/s
Lower-order cross-connect capability: 40 Gbit/s
Access capability: 156.25 Gbit/s
• SSN1SXCSA
Higher-order cross-connect capability: 200 Gbit/s
Lower-order cross-connect capability: 20 Gbit/s
Access capability: 155 Gbit/s
• SSN1SXCSB
Higher-order cross-connect capability: 200 Gbit/s
Lower-order cross-connect capability: 20 Gbit/s
Access capability: 156.25 Gbit/s
The extra 1.25 Gbit/s is the access capability of
the extension subrack.
Comparison of Cross-Connect Capability Between the IXCSA/B and the SXCSA/B
HUAWEI TECHNOLOGIES CO. , LTD. Page 20Huawei Confidential
The SSN1IXCSA/B is applied in the OptiX OSN 3500 subrack. It can be inserted in slots 9 and
10. By default, the board in slot 9 serves as the active board and the board in slot 10 serves as
the standby board.
200G access capability of the OptiX OSN 3500 subrack
Application of the SST1IXCSA
HUAWEI TECHNOLOGIES CO. , LTD. Page 21Huawei Confidential
SSN1SLD64
The SSN1SLD64 can transmit and receive two channels of STM-64 optical signals.
The SSN1SLD64 can perform framing and overhead processing to the two
channels of STM-64 services. The XFP encapsulation is employed.
• Main Functions and Features
Supports I-64.1 and S-64.2b optical interfaces.
Supports VC-12/VC-3/VC-4 services and concatenation services from VC-4-4c
services to VC-4-64c services.
Supports 1+1, 1:1 and 1:N line protection modes, two-fiber/four-fiber MS ring
protection, optical-path-shared protection, SNCP, SNCTP and DNI protection.
• Backplane Service Bus
The board only supports the bus rate of 2.5 Gbit/s. On the OptiX OSN 3500
subrack, the board can only work with 160G cross-connect boards. On the OptiX
OSN 7500 subrack, the board can only work with 280G cross-connect boards.
HUAWEI TECHNOLOGIES CO. , LTD. Page 22Huawei Confidential
Application of the SSN1SLD64
When the cross-connect capacity of the OptiX OSN 3500 is 40 Gbit/s or 80 Gbit/s, the SLD64 cannot be inserted in the equipment subrack.
Capacity of Cross-Connect Boards Available slots of the SSN1SLD64
200G Slots 7 and 8, slots 11 and 12
Note: On the OptiX OSN 7500, the SLD64 should be configured in slots 7 and 8, or slots 11 and 12 in preference. In case that the ambient temperature does not exceed 50℃, the SLD64 can be configured in slots 30 and 31.
When the cross-connect capacity of the OptiX OSN 7500 is 240 Gbit/s, the SLD64 cannot be inserted in the equipment subrack.
Capacity of Cross-Connect Boards Available slots of the SSN1SLD64
360G Slots 7 and 8, slots 11 and 12, slots 30 and 31
HUAWEI TECHNOLOGIES CO. , LTD. Page 23Huawei Confidential
SSN1SLD16
The SSN1SLD16 is a two-channel STM-16 optical interface processing
board, which employs the SFP optical module.
• Main Functions and Features
Supports VC-12/VC-3/VC-4 services, VC-4-4c, VC-4-8c and VC-4-16c
concatenation services.
Supports 1+1, 1:1 and 1:N line protection modes, two-fiber/four-fiber MS
ring protection, optical shared line protection, SNCP, SNCTP and DNI
protection.
Supports I-16.1, S-16.1, L-16.1, L-16.2 optical interfaces.
• Backplane Service Bus
The board only supports the bus rate of 622 Mbit/s and can be used only
on the OptiX OSN 3500 subrack.
HUAWEI TECHNOLOGIES CO. , LTD. Page 24Huawei Confidential
Application of the SSN1SLD16
The SSN1SLD16 is only applied in the OptiX OSN 3500 equipment.
Capacity of Cross-Connect BoardsAvailable Slots of the
SSN1SLD16
200G Slot 7/8/11/12
80G Slot 7/8/11/12
40G Slot 8/11
HUAWEI TECHNOLOGIES CO. , LTD. Page 25Huawei Confidential
SSN3SL16A
The SSN3SL16A is a one-channel STM-16 optical interface processing
board, which employs the SFP optical module. It is a low-cost board.
Main Functions and Features
Supports VC-12/VC-3/VC-4 services, VC-4-4c, VC-4-8c and VC-4-16c
concatenation services; supports AU-3 services, but do not supports
the TCM function and AU-3 services at the same time.
Supports 1+1, 1:1 and 1:N line protection modes, two-fiber/four-fiber
MS ring protection, optical shared line protection, SNCP, SNCTP and
DNI protection.
Supports the REG mode.
Backplane Service Bus
The board only supports the bus rate of 622 Mbit/s and can be applied in
the OptiX OSN 7500/3500/2500/1500 subrack.
HUAWEI TECHNOLOGIES CO. , LTD. Page 26Huawei Confidential
SSN3SL16The SSN3SL16 is a one-channel STM-16 optical interface processing
board. It employs the non-swappable OTR optical module, and is mainly
used for long-distance transmission or in the application scenario of fixed
wavelengths. It is a low-cost board.
Main Functions and Features
Supports VC-12/VC-3/VC-4 services, VC-4-4c, VC-4-8c and VC-4-16c
concatenation services; supports AU-3 services, but do not supports
the TCM function and AU-3 services at the same time.
Supports 1+1, 1:1 and 1:N line protection modes, two-fiber/four-fiber
MS ring protection, optical shared line protection, SNCP, SNCTP and
DNI protection.
Supports the REG mode.
Backplane Service Bus
The board only supports the bus rate of 622 Mbit/s and can be applied in
the OptiX OSN 7500/3500/2500/1500 subrack.
HUAWEI TECHNOLOGIES CO. , LTD. Page 27Huawei Confidential
Comparison Between the SSN3SL16 (A) and the SSN1/N2SL16 (A)
Item Description
Functional
version
The SL16 (A) board has three functional versions: N1, N2 and N3.
Difference The N1 version does not support the tandem connection monitoring (TCM)
function and AU-3 services.
The N2 version supports the TCM function and AU-3 services.
The TCM function and AU-3 services cannot be configured on the N3SL16 at
the same time.
The N3 version supports the board replacement function.
Replacement N1 boards and N2 boards cannot replace each other.
In case that the TCM function and AU-3 services are not involved, N3 boards
can completely replace corresponding N2 and N1 boards.
N3 boards support the board replacement function and can replace the
N1SL16. After the replacement, the configuration and service status of the
N3SL16 should be consistent with those of the N1SL16.
HUAWEI TECHNOLOGIES CO. , LTD. Page 28Huawei Confidential
SSN2PQ3/PD3/PL3/PL3A
The SSN2PQ3 is a 12-channel E3/D3 service processing board. The
SSN2PD3 and SSN2PL3 are respectively the six-channel E3&T3
service processing board and the three-channel E3&T3 service
processing board. The SSN2PL3A is a three-channel E3/T3 service
processing mode using the front leading-out mode.
• Main Functions and Features
Supports the service configuration of VC-3 level, the configuration
and query for all path overhead of VC-3 level.
Supports the E13 function to realize the convergence from E1
services to E3 services.
Supports the M13 function to realize the convergence from T1
services to T3 services.
• Protection Mode
The boards can work with the interface board D34S and the switching
& bridging board TSB8 to realize the TPS protection.
HUAWEI TECHNOLOGIES CO. , LTD. Page 29Huawei Confidential
Comparison of the SSN2PD3 and the SSN1PD3
Item Description
Functional
version
The PD3 board has two functional versions: N1 and N2.
Difference The SSN1PD3 does not support the E13/M13 function.
The SSN2PD3 supports the E13/M13 function.
The SSN2PD3 supports the board replacement function and can replace the
N1PD3. After the replacement, the configuration and service status of the
N2PD3 should be consistent with those of the N1PD3.
Replacement The SSN2 boards can replace the SSN1 boards completely.
Note: The difference among the SSN2PD3, SSN2PL3 and SSN2PL3A is the same as that among the SSN1PD3, SSN1PL3 and SSN1PL3A. The PQ3 board only has the N2 version.
HUAWEI TECHNOLOGIES CO. , LTD. Page 30Huawei Confidential
Summary This section covers:
New cross-connect boards, line
boards and tributary boards of NG-
SDH V1R7 product series
HUAWEI TECHNOLOGIES CO. , LTD. Page 31Huawei Confidential
Questions
Question 1: Which equipment is the new cross-connect and
timing board SST1IXCSA used for?
Question 2: What are the access capabilities of the SSN1 IXCSA
and the SSN1 IXCSB?
Question 3: Which cross-connect capacity of the OptiX OSN
7500 can the SSN1SLD64 be used in?
Question 4: Among the SSN2PQ3/PD3/PL3/PL3A, which
tributary board provides interfaces on the front panel?
HUAWEI TECHNOLOGIES CO. , LTD. Page 32Huawei Confidential
Contents
NG-SDH V1R7 Version Description
New Boards of NG-SDH V1R7 Products
New Functions and Application
Scenarios of NG-SDH V1R7 Products
HUAWEI TECHNOLOGIES CO. , LTD. Page 33Huawei Confidential
New Features of NG-SDH V1R7 Products
New Features of NG-SDH V1R7 Products
Subnetwork connection tunnel protection (SNCTP)
Hot patch supported by SCCs and boards
Power consumption control
Disabling of detection by J bytes
Loading NE software package
Higher-order and lower-order PRBS testing
Replacement of NG-SDH V1R7 products
Other functional improvements
List of new features of NG-SDH V1R7 products
HUAWEI TECHNOLOGIES CO. , LTD. Page 34Huawei Confidential
Function Description of SNCTP
Subnetwork connection tunnel protection (SNCTP) function is an optimized scheme to improve the efficiency of lower-order SNCP switching. Transfer of lower-order SNCP to higher-order SNCP (that is, SNCTP): VC-12/VC-3 SNCP services in the same VC-4 are consolidated into VC-4 SNCP services. Then the higher-order SNCP switching mode is used to avoid excessive switching time due to the switching of large amount of lower-order SNCP services. Thus, services can be restored rapidly.
HUAWEI TECHNOLOGIES CO. , LTD. Page 35Huawei Confidential
Application Scenario of SNCTP
The NE1 and NE2 converge large amount of VC-12 and VC-3 services. Lower-order SNCP services
are detected and switched in the lower-order cross-connect chips of cross-connect boards. When the
amount of lower-order SNCP services is rather large, the states of large amount of lower-order SNCP
services change if a fiber cut occurs to the working/protection path. In this case, multiple adjustments
of lower-order cross-connections are triggered, which results in the excessive SNCP switching time.
The SNCTP consolidates VC-12/VC-3 SNCP services in the same VC-4 to VC-4 SNCP services. If
the VC-4 path is faulty, the VC-4 SNCP switching protects lower-order SNCP services. The VC-4
SNCP switching mode can avoid excessive switching time due to the switching of large amount of
lower-order SNCP services. Thus, services can be restored rapidly.
HUAWEI TECHNOLOGIES CO. , LTD. Page 36Huawei Confidential
SNCP SNCTP
Switching performance
Currently, up to 18 VC4 services and 4 x 63 VC12 services can be switched at the same time within 50 ms.
Currently, up to 64 x 63 VC12 services can be switched at the same time within 50 ms.
Minimum switching unit
VC12 path The switching of VC4 paths does not protect the affected services in case of failure or deterioration of lower-order paths.
Service type All service types Only VC4, VC12 and VC3 services are supported.
Protection group
Supported Not supported
Comparison of Functions between SNCP and SNCTP
HUAWEI TECHNOLOGIES CO. , LTD. Page 37Huawei Confidential
Hot Patch Supported by SCCs and Boards
Basic Definitions of Patches Patch: an independent software unit released for modifying the bug in software. Hot Patch: a section of codes to eliminate the software bug without interrupting
services. Patch Pack: includes one or more patches and is registered in the NE software.
Advantages of Patches Solving a majority of software bugs in service without affecting services Reducing the number of version releases and upgrades, reducing the cost and
avoiding the risk Facilitating problem location
Limitations Patches are not almighty and cannot solve all software bugs. Functions cannot be added by patches.
NG-SDH V1R6 products support the hot patch function of the NE software. NG-SDH V1R7 products support the hot patch function of NE software and board software.
HUAWEI TECHNOLOGIES CO. , LTD. Page 38Huawei Confidential
Naming Rules of Hot Patches
Patch number: HPXYYYY
---HP: Hot Patch
---X: C (Customer) or T (Temporary)
---YYYY: patch series number (0001-9999)
Patch pack number: SPXYYY
---SP: Service Pack
---X: H (Hot) or C (Cold)
---YYY: patch pack series number (001-999)Example:
A hot patch pack of the NG-SDH V100R007C01B01b is released.
The patch pack name should be NG-SDH V100R007C01B01bSPH002.
HUAWEI TECHNOLOGIES CO. , LTD. Page 39Huawei Confidential
State Description of Hot Patches
Idle: Patch data is not loaded to the patch area. Deactive: Patch data is already loaded to the patch area but the patch does not take
effect. Active: The patch takes effect and is in the trial running state. After a system reset,
the patch is in the deactive state. Running: The patch takes effect and is in the running state. After a system reset, the
patch is in the active state.
Idle
Running
Deactive
Active
Loading
Deleted
System
reset
Deactive
Active
Running
Deletion
Deleted
System reset
System reset
System reset
HUAWEI TECHNOLOGIES CO. , LTD. Page 40Huawei Confidential
Power Consumption ControlThe functions of new boards of NG-SDH product series are stronger and the density of
service ports is higher. As a result, the board power consumption is larger. In case that
many large power consumption boards are configured for an NE, the power consumption
may exceed the tolerance of the power board if the power consumption is not controlled.
Thus, the whole NE may fail.
Currently, only two boards support the power consumption control function, that is, SSN1EMS4 and SSN1EGS4.
Maximum Power Consumption
1500A 250
1500B 330
2500 400
2500/REG 400
3500/3500T 800
7500 1000
HUAWEI TECHNOLOGIES CO. , LTD. Page 41Huawei Confidential
State Description of Power Consumption Control
Large power consumption boards have two working states.
High power consumption state: the normal working state. All the chips of the
board can work normally.
Low power consumption state: All the service chips of the board are not
initialized. The board can only apply to the NE software for entering the high
power consumption state.
When a board goes into the low power consumption state from the
high power consumption state, the board will perform automatic hard
reset.
Compared with other boards, large power consumption boards must
request for entering the high power consumption state after reset
before the boards work. Boards without the power consumption
control function are in the high power consumption state after reset.
HUAWEI TECHNOLOGIES CO. , LTD. Page 42Huawei Confidential
J Byte in Each NG-SDH Version In the V1R1 version, the default value of J bytes is:
J0/JI/J2: 16-byte mode. The value of transmitted J bytes and received J bytes is Huawei SBS.
The value is consistent with that of other product series of the Optical Network Product Line.
In the V1R2 version, the default value of J bytes is modified as follows. The modified value is also used by V1R3 to V1R6 versions.
J0: single-byte mode. The value of transmitted J bytes and received J bytes is 1.
If the product interconnects to NG-SDH V1R1 products or other products of the Optical Network Product Line, the interconnected ends will report J0_MM and HP_TIM alarms.
In the V1R7 version, the default value of J bytes is set as follows. When the received J byte is 0, the detection function is disabled.
Received J0/J1/J2: single-byte mode. The value is 0. Transmitted J0/J1/J2: single-byte mode. The value is Huawei SBS. When the received J byte is 0, the detection function is disabled.
When NG-SDH V1R7 products interconnect to NG-SDH V1R1 products or other products of the Optical Network Product Line, the interconnected equipment will not generate any alarm.
When NG-SDH V1R7 products interconnects to NG-SDH V1R2-R6 products, the NG-SDH V1R2-R6 will generate J0_MM and HP_TIM alarms.
The NG-SDH V1R7 will not generate any alarm because the detection function by J bytes is disabled.
HUAWEI TECHNOLOGIES CO. , LTD. Page 43Huawei Confidential
Loading NE Software Package
Definition of Software Packages Software package is a virtual definition. All the software is not
compressed into a package. All required software by an NE (currently,
only the INI file, FPGA, extended BIOS of board software and NE
software are included. The basic BIOS is not included) is centralized
to a logic software package and called as software package (*.pkg
file).
After the software package is loaded to the NE, the integrated
software package is stored in the CF card of the SCC, that is, under
the sfs1/pkg and sfs2/pkg directories of corresponding SCC file
system.
HUAWEI TECHNOLOGIES CO. , LTD. Page 44Huawei Confidential
Features of Package Loading In package loading, you need not care about the details on board software loading
but care about the NE. You only need to perform some simple operations on the
Toolkit.
The NE is automatically managed. If the version of the newly-inserted board is not
consistent with that of NE software package, the software will be updated
automatically. If the board file is lost, it will be automatically restored from the SCC.
Incremental loading. Only required files are loaded. The rules are as follows.
1) The inconsistent version is replaced.
2) The required version is added.
3) The software of the old package that does not exist in the new package is deleted.
Loading NE Software Package
HUAWEI TECHNOLOGIES CO. , LTD. Page 45Huawei Confidential
NE Software Package Loading Function - Requirements for Software and Hardware
Hardware Requirements
The flash space of NG-SDH products is small, which cannot store the
whole software package. Thus, an external CF card is required.
Currently, only the SSN3GSCC is equipped with the CF card, which can
support the function.
Software Requirements
The package loading function is distributed. The SCC boards and other
boards must be matched and support the package loading function.
NG-SDH V1R7 products start to support the package loading function.
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NE Package Loading Flow and Troubleshooting
Normal Flow
Software package loading
Loading to target board
NE activation
Submission of software packages
Troubleshooting
Resumable download
Rollback
Automatic Synchronization and Matching
Loading After SCC State Change
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Precautions on Package Loading
Package loading can be performed only when the main state and substate of an NE for which a
package is to be loaded are normal.
Before package loading, confirm that the Health Tool is OK. Try to clear the alarms on the NE. For
persisting alarms, collect the alarms and send them to R&D personnel for processing. For details
about the Health Tool, refer to the attachment.
Before package loading, confirm that the version and database of the active and standby boards are
consistent.
Before upgrade, confirm that all protection schemes on the NE are not forced to switch or locked.
Before upgrade by package loading, confirm that the boards to be cold reset are protected (different
measures should be taken in different situations). Otherwise, services will be interrupted.
During package loading, no board is allowed to go online or go offline.
During package loading, no configuration modification is allowed.
After the NE is activated, observe for a period of time. Make sure that the NE and the entire network
are normal, and then issue the submit command.
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Application of PRBS Tests
The figure below shows a typical service signal flow. Start the PRBS tests of
different boards in the directions to be tested and perform the loopback operation
in corresponding locations. Check whether bit errors are detected to determine
which section of the test path is faulty.
IN
Connect to the remote transmission equipment
Tributary board
TX
Connect to the local tributary equipment
Cross-connect
board
Line board
RX OUT
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Typical Application of Lower-Order PRBS
Loop back the electrical interface of the tributary board by using cables. Start the PRBS test from
the tributary board to the electrical interface to check whether the path to the electrical interface is
faulty. Then start the PRBS test from the tributary board to the cross-connect board and perform
the loopback operation in the three locations marked in the figure. Thus, check whether related
boards and fibers are normal.
Local NEC
ross-co
nn
ect
bo
ard
Lin
e b
oa
rd
Lin
e b
oa
rd
③
Tributary board
PRBS
PRBS
OUT
IN
② Fiber loopback of the local NE
③①
③ Line outloop of the remote NE
① Inloop inside the line board of the local NE
②
Remote NE
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Typical Application of Higher-Order PRBS
As shown in the figure, the
cross-connect board
triggers the higher-order
PRBS test in the direction
towards the line board and
performs the loopback
operation at the
corresponding location to
check whether any higher-
order path of the cross-
connect board or line board
is faulty.
②
OUT
IN
Line board
① Inloop inside the line board of the local NE
② Hardware loopback of optical interfaces of the local NE
Remote NELine board
③①
③ Optical interface outloop of the remote NE
Cross-connect board
PRBS
generator
PRBS
Receiver
Local NE
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Boards Supporting PRBS Function
Board Type Board Name
Tributary
board
N1PQ1, N1PQM, R1PD1, R1PL1, N2PQ1, R2PD1, N1DX1,
N1PD3, N1PL3, N1PL3A, N2PQ3, N2PD3, N2PL3 and N2PL3A
Line board N3SL16
Cross-
connect
board
N1SXCSA, N1SXCSB, N1IXCSA, N1IXCSB, T1SXCSA, T2UXCSA
and T1IXCSA
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Application Scenario of Board Replacement
Because the chips of a new board are different from those of an old board and the specifications
of the new board and those of the old board are different (but the difference is rather small), the
software needs to consider the new board and the old board as different boards. Therefore, a new
board ID is required for the new board.
Generally, an old board is used on the old NE that does not support the board ID of a new board.
When a new board is used to replace the old board, the new board must be able to work with the
ID of the old board. And the new board must be able to work with the ID of the new board on a
new NE. That is, the new board should have multiple board IDs. The function that a board
supports multiple IDs is called as board replacement.
The board replacement function can be used for spare part preparation and capacity expansion.
Features of Board ReplacementNew boards can be used on an old NE. New boards can have the functions of old boards. New boards can be used on a new NE. They can use new IDs and have new functions.
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Application Scenario of Board Replacement
Board Supporting Board
Replacement Function
Replaceable Board
SSN1SXCSA SSN1EXCSA, SSN1UXCSA
SSN1SXCSB SSN1UXCSB
SSN3SL16 SSN2SL16, SSN1SL16
SSN2PD3 SSN1PD3
SSN2PL3 SSN1PL3
SSN2PL3A SSN1PL3A
Compared with NG-SDH V1R6 products, more boards of NG-SDH V1R7 products have the board replacement function.
A new board with the board replacement function, that is, a new board used to replaces an old board, may not have all the functions of the old board.
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Other Functional Improvements
Access Control Function of Maintenance Ports
It is not allowed to use physical ports as maintenance ports. By
default, the F&f, OAM and COM ports are disabled, and the ETH
network port is enabled.
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Questions
Question 1: What are the main differences among SNCP, SNCMP and
SNCTP?
Question 2: Is the NG-SDH V100R007C01B01bSPH002 a patch pack?
Question 3: What is the default mode of J bytes in NG-SDH V1R7
products?
Question 4: Which SCC should the package loading function work with?
Question 5: What is the default state of the COM port in NG-SDH V1R7
products?
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Summary This section covers:
New SDH features of NG-SDH product
series
New Ethernet features of NG-SDH product
series
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Summary
Upon completion of this course, you will be able to:
Know general features and position of NG-SDH
V1R7 products.
Grasp the features of new SCCs, cross-connect
boards, data boards and the line board SSN2SLQ16
of NG-SDH V1R7 products.
Know the important software features of NG-SDH
V1R7 product series.