OSN 7500 II V200R011C02 Product Overview 03

OptiX OSN 7500 II Intelligent Optical SwitchingSystemV200R011C02

Product Overview

Issue 03Date 2012-11-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2012. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.comEmail: [email protected]

Issue 03 (2012-11-30) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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Contents

1 Introduction....................................................................................................................................11.1 Network Application..........................................................................................................................................11.2 Features...............................................................................................................................................................3

1.2.1 Universal Switch Architecture, Multi-Service Transmission....................................................................31.2.2 3G Mobile Backhauling Support, Service Transmission Improvement....................................................41.2.3 Built-In WDM, Flexible Networking........................................................................................................4

2 Hardware Structure and Software Architecture......................................................................52.1 Hardware Structure.............................................................................................................................................5

2.1.1 Cabinet.......................................................................................................................................................52.1.2 Subrack......................................................................................................................................................5

2.1.2.1 Structure............................................................................................................................................52.1.2.2 Slot Allocation..................................................................................................................................6

2.1.3 Boards........................................................................................................................................................82.1.3.1 Classification of Boards....................................................................................................................9

2.2 Software Architecture.......................................................................................................................................202.2.1 Overview.................................................................................................................................................20

3 Packet Functions and Features..................................................................................................223.1 Capacity............................................................................................................................................................22

3.1.1 Packet Switching Capacity......................................................................................................................223.1.2 Slot Access Capacity in Packet Mode.....................................................................................................22

3.2 Services.............................................................................................................................................................233.2.1 Service Interfaces....................................................................................................................................233.2.2 Service Receiving Capacity.....................................................................................................................24

3.3 Clock Synchronization.....................................................................................................................................253.4 Equipment Level Protection.............................................................................................................................25

3.4.1 LAG Protection........................................................................................................................................253.4.2 MC-LAG Protection................................................................................................................................27

3.5 Network Level Protection.................................................................................................................................283.5.1 MPLS Tunnel APS Protection.................................................................................................................283.5.2 PW APS Protection.................................................................................................................................293.5.3 Packet-based Linear MSP........................................................................................................................313.5.4 LPT..........................................................................................................................................................31

OptiX OSN 7500 II Intelligent Optical Switching SystemProduct Overview Contents


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3.6 Board Functions................................................................................................................................................323.6.1 Packet Processing Boards........................................................................................................................323.6.2 Packet Interface Boards...........................................................................................................................41

4 Functions and Features in TDM Mode...................................................................................544.1 Capacity............................................................................................................................................................54

4.1.1 TDM Cross-Connect Capacity................................................................................................................544.1.2 Slot Access Capacity...............................................................................................................................54

4.2 Service..............................................................................................................................................................554.2.1 Service Types..........................................................................................................................................554.2.2 Service Interfaces....................................................................................................................................564.2.3 Service Receiving Capacity.....................................................................................................................56

4.3 Equipment Level Protection.............................................................................................................................574.4 Network Level Protection.................................................................................................................................584.5 Board REG Function........................................................................................................................................584.6 Built-in WDM Technology..............................................................................................................................59

5 Products and Application Scenarios........................................................................................605.1 Overview of Network Topologies....................................................................................................................605.2 Typical Networking in Packet Mode................................................................................................................62

5.2.1 Typical Networking Without Routers.....................................................................................................625.2.2 Hybrid Networking with Routers............................................................................................................635.2.3 Traversing a Third-Party Layer 2 Network.............................................................................................64

5.3 Networking with the Packet Domain Overlapping the TDM Domain ............................................................645.4 Hybrid Networking with Other Huawei Equipment.........................................................................................66

5.4.1 Hybrid Networking with the PTN Equipment.........................................................................................665.4.2 Hybrid Networking with the RTN Equipment........................................................................................67

6 OAM...............................................................................................................................................696.1 Administration and Auxiliary Interfaces..........................................................................................................696.2 DCN Management Scheme..............................................................................................................................706.3 Network Management......................................................................................................................................706.4 Alarm and Performance Management..............................................................................................................706.5 ALS Function And Optical Power Management..............................................................................................716.6 Fault Locating and Equipment Maintenance....................................................................................................726.7 Board Replacement and Equipment Upgrade...................................................................................................73

7 Technical Specifications.............................................................................................................747.1 Overall Specifications of the Equipment..........................................................................................................74

7.1.1 Cabinet Specification...............................................................................................................................747.1.2 Subrack Specification..............................................................................................................................757.1.3 Power Supply Specification.....................................................................................................................767.1.4 Packet System Performance....................................................................................................................777.1.5 Timing and Synchronization Performance..............................................................................................80

7.2 Power Consumption and Weight of Boards.....................................................................................................81



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A Glossary........................................................................................................................................83



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1 Introduction1.1 Network Application

The OptiX OSN 7500 II intelligent optical switching system (the OptiX OSN 7500 II for short)is the next-generation intelligent optical core switching (OCS) equipment and is developed byHuawei on the basis of the current situation and development trend of the metropolitan areanetwork (MAN).The OptiX OSN 7500 II is mainly used as a service scheduling node at the backbone layer ofthe MAN. That is, it functions as optical core switching equipment (OCS). As an intelligentoptical transmission platform and core optical transmission system, the OptiX OSN 7500 II islocated at the metropolitan backbone layer to schedule and transmit services of different typesand granularities.The OptiX OSN 7500 II is of a "universal switch" architecture. That is, the OptiX OSN 7500 IIcan be used in packet mode or in TDM mode. When used with the other equipment of Huawei,the OptiX OSN 7500 II supports various networking applications, such as the pure packet domainapplication, hybrid networking application (overlay networking of the packet domain and TDMdomain), and pure TDM domain application. By using a proper networking solution, the dataservice and conventional SDH service can be processed in the optimal manner.In TDM mode, the OptiX OSN 7500 II supports large cross-connect capacities, that is, 360 Gbit/s higher-order cross-connections and 40 Gbit/s lower-order cross-connections. In packet mode,the OptiX OSN 7500 II supports 320 Gbit/s packet switching capabilities.In packet mode, the OptiX OSN 7500 II supports the following technologies:l Multi-Protocol Label Switched-Transport Profile (MPLS-TP)l Multi-Protocol Label Switch (MPLS)l ETH PWE3 (Pseudo Wire Edge to Edge Emulation)l TDM PWE3l ATM PWE3In TDM mode, the OptiX OSN 7500 II supports the following technologies:l Synchronous digital hierarchy (SDH)l Plesiochronous digital hierarchy (PDH)l WDM (Wavelength Division Multiplexing)Figure 1-1 shows the exterior of the OptiX OSN 7500 II.

OptiX OSN 7500 II Intelligent Optical Switching SystemProduct Overview 1 Introduction


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Figure 1-1 Exterior of the OptiX OSN 7500 II

As shown in Figure 1-2, the OptiX OSN 7500 II is a high-end product in the next generationSDH (NG-SDH). The OptiX OSN 7500 II can be networked with the other OptiX transmissionequipment (the OptiX OSN 9560, OptiX OSN 9500, OptiX OSN 7500, OptiX OSN 3500, OptiXOSN 3500 II, OptiX OSN 2500, OptiX OSN 1500, OptiX 155/622H(Metro 1000), and OptiX OSN550) to optimize the carrier's investment.



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Figure 1-2 Application of the OptiX OSN 7500 II in the transmission network

Ethernet SANPSTN ATM Microwav eTechnology

Backbone layer

OptiX OSN 7500

OptiX OSN 2500

OptiX OSN 2500OptiX OSN 1500

GSM/CDMA/WCDMA/TD-

SCDMA

OptiX OSN 3500OptiX OSN 3500 II

OptiX OSN 3500 OptiX OSN 3500 II

OptiX OSN 7500 II

Conv ergence layer

Access layer

OptiX OSN 95 00

OptiX 155/622H

OptiX OSN 550

OptiX OSN 95 60

In addition, with the packet switching technology, the OptiX OSN 7500 II can constitute a packetdata transmission network with the other OptiX transmission equipment (the OptiX OSN 7500,OptiX OSN 3500, OptiX OSN 1500, OptiX 155/622H (Metro 1000), OptiX OSN 550, OptiX PTN910, OptiX PTN 950, OptiX PTN 1900, OptiX PTN 3900, and OptiX RTN 900) to meet therequirements for bearing IP services.

1.2 FeaturesThis section describes the features of the OptiX OSN equipment in the aspects of systemarchitecture, networking, and technologies.

1.2.1 Universal Switch Architecture, Multi-Service TransmissionWith a universal switch architecture, the OptiX OSN equipment meets requirements for bearingconventional services and the growing number of packet services.Figure 1-3 shows the architecture of the OptiX OSN equipment.



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Figure 1-3 Architecture of the OptiX OSN equipment

TDM Cross-Connect

ATM/TDM

EoS

STM-N

STM-NTDM equipment architecture

Packet SwitchATM/TDM

Ethernet

Ethernet

EthernetPacket equipment architecture

Universal Switch

ATM/TDM/EoS

EthernetSTM-N

Ethernet

"Hybrid MSTP" equipment architecture

+

EOD

1.2.2 3G Mobile Backhauling Support, Service TransmissionImprovement

To address 3G mobile backhauling requirements, Huawei's equipment provides completetransmission solutions in the packet domain, converging and grooming services at the core layerof a wireless network.The packet domain combines a wide range of technologies for efficient and reliable end-to-endsignal transmission on 3G base stations. Consequently, maintenance workload decreases andnetwork performance improves.

1.2.3 Built-In WDM, Flexible NetworkingThe OptiX OSN equipment uses the built-in WDM technology to transmit several wavelengthsover one optical fiber. In this manner, the OptiX OSN equipment can be interconnected with theWDM equipment.For details of the built-in WDM technologies, see section "4.6 Built-in WDM Technology".



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2 Hardware Structure and SoftwareArchitecture

2.1 Hardware StructureThe equipment can house various types of boards and can reside in only one type of cabinet.

2.1.1 CabinetThe cabinet that complies with ETSI standards is used for housing OptiX OSN 7500 II subracks.A PDU is installed on the top of a cabinet to access -48 V or -60 V power.

2.1.2 SubrackA subrack consists of slots and boards that can be configured.

2.1.2.1 StructureAn OptiX OSN 7500 II subrack has a two-layer structure. The subrack consists of a processingboard area, an interface board area, a fan area, and a cable routing area.Figure 2-1 shows the structure of an OptiX OSN 7500 II subrack.

OptiX OSN 7500 II Intelligent Optical Switching SystemProduct Overview 2 Hardware Structure and Software Architecture


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Figure 2-1 Structure of an OptiX OSN 7500 II subrack

Interface board area

Fan area

Processing board area

Cable routing areaFan area

The functions of the areas are as follows:l Processing board area: This area houses the processing boards of the OptiX OSN 7500 II.l Interface board area: This area houses the interface boards of the OptiX OSN 7500 II.l Fan area: This area houses fan modules, which dissipate heat generated by the equipment.l Cable routing area: This area houses fiber jumpers in a subrack.

NOTE

An interface board is also called an access board or a transit board. An interface board provides physicalinterfaces for optical signals and electrical signals, and transmits the optical signals or electrical signals tothe corresponding processing board.

2.1.2.2 Slot AllocationAn OptiX OSN 7500 II subrack consists of an upper layer and a lower layer, wherein 40 slotsare available. There are 20 slots at the upper layer and 18 slots at the lower layer. In addition,there are two slots for fan boards.Figure 2-2 shows the slot layout of an OptiX OSN 7500 II subrack.



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Figure 2-2 Slot layout of an OptiX OSN 7500 II subrack

SLOT

1

SLOT

2

SLOT

3

SLOT

4

SLOT

5

SLOT

6

SLOT

7

SLOT

8

SLOT

11

SLOT

12

SLOT

13

SLOT

14

SLOT

15

SLOT

16

SLOT

17

SLOT

18

Fiber routing trough

Fan SLOT 43Air f ilter

XCS

9 10

Fan SLOT 42

Fiber routing trough

SLOT

26

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

SLOT

PIU

22

PIU

23

SCA

24

SCA

2527

28

29

30

31

32

33

34

35

36

37

38

39

40

41

XCS

Slot Area for Interface Boardsl Slots for service interface boards: slots 26-33 and 34-41

Slot Area for Processing Boardsl Slots for service processing boards: slots 1-8 and 11-18l Slots for cross-connect and timing boards: slots 9-10l Slots for power interface boards: slots 22-23l Slots for system control and communication boards: slots 24-35

Mapping Between Slots for Interface Boards and Slots for Processing BoardsTable 2-1 lists the mapping between slots for interface boards and slots for processing boards.



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Table 2-1 Mapping between slots for interface boards and slots for processing boardsSlot for Processing Board Slot for Interface BoardSlot 1 Slots 26-27Slot 2 Slots 28-29Slot 3 Slots 30-31Slot 4 Slots 32-33Slots 5-8 -Slots 11-14 -Slot 15 Slots 34-35Slot 16 Slots 36-37Slot 17 Slots 38-39Slot 18 Slots 40-41

Paired SlotsIf overhead bytes pass through the backplane bus between two slots, the two slots are calledpaired slots. Paired slots achieve automatic transparent transmission of overhead bytes such asK bytes, D bytes, and E1 overhead bytes. This improves multiplex section protection (MSP)switching performance and DCC communication with other NEs even after the system controlboard on the local NE cannot be detected. Table 2-2 lists paired slots.

Table 2-2 Paired slotsSlot Paired SlotSlot 1 Slot 2Slot 3 Slot 4Slot 5 Slot 6Slot 7 Slot 8Slot 11 Slot 12Slot 13 Slot 14Slot 15 Slot 16Slot 17 Slot 18

2.1.3 BoardsThe equipment supports different types of boards.



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2.1.3.1 Classification of BoardsBoards are functionally classified into cross-connect boards and system control boards, packetprocessing boards, packet interface boards, SDH boards, PDH boards, WDM boards, opticalamplifier boards and dispersion compensation boards, auxiliary boards, and power boards.

NOTE

For details on the board version replacement relationship between boards, see Board Version Replacementin the Hardware Description.

Cross-Connect Boards and System Control BoardsTable 2-3 lists all cross-connect boards and system control boards and their applicable products.

Table 2-3 List of cross-connect boards and system control boardsBoard Description Applicable ProductTNN1SCA System control and auxiliary

processing boardOptiX OSN 7500 II

TNN1PSXCS Super Cross-connect andSynchronous Timing Board

OptiX OSN 7500 II

T1PSXCSA Super dual-plane cross-connect and synchronoustiming board

OptiX OSN 7500

N4GSCC,N6GSCC

System Control andCommunication Board

OptiX OSN 7500, OptiX OSN 3500

N1PSXCS,N2PSXCSA,N3PSXCSA

Super Cross-connect andSynchronous Timing Board(supporting packet features)

OptiX OSN 3500

N1SXCSA Super cross-connect andsynchronous timing board(only applicable in TDMmode)

OptiX OSN 3500

R1PCXLN SCC unit, cross-connect unit,and optical interface unitintegrated board (supportingthe packet feature)

OptiX OSN 1500

Packet Processing BoardsTable 2-4 lists all packet processing boards and their applicable products.



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Table 2-4 List of packet processing boardsBoard Description Applicable ProductTNN1EX2 2x10GE processing board OptiX OSN 7500 IIN1PEX2 2-port 10 Gigabit Ethernet

switching processing boardOptiX OSN 7500, OptiX OSN 3500

N1PEX1 1x10GE Ethernet processingboard

OptiX OSN 3500

N2PEX1 1x10GE Ethernet processingboard


N1PEG16 16xGE Ethernet processingboard

OptiX OSN 3500

TNN1EG8 8xGE processing board OptiX OSN 7500 IIN1PEG8 8-Port Gigabit Ethernet

switching processing boardOptiX OSN 7500, OptiX OSN 3500

Q1PEGS2 2xGE processing board OptiX OSN 1500A, OptiX OSN 1500BR1PEGS1 1xGE processing board OptiX OSN 1500A, OptiX OSN 1500BR1PEFS8 8xFE processing board OptiX OSN 1500A, OptiX OSN 1500BR1PEF4F 4xFE optical processing

boardOptiX OSN 1500A, OptiX OSN 1500B

R1ML1 Multi-protocol 16xE1electrical processing board

OptiX OSN 1500A, OptiX OSN 1500B

Packet Interface BoardsTable 2-5 lists all packet interface boards and their applicable products.

Table 2-5 List of packet interface boardsBoard Description Applicable ProductTNN1CO1 8-port channelized STM-1

CES optical interface boardOptiX OSN 7500 II

N1CQ1 4-port channelized STM-1CES optical interface board


TNN1D75E 32-port 75-ohm E1 interfaceboard

OptiX OSN 7500 II

TNN1D12E 32-port 120-ohm E1interface board

OptiX OSN 7500 II



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Board Description Applicable ProductTNN1ETMC 8xFE+4xFE/GE electrical

interface boardOptiX OSN 7500 II

TNN1AFO1 8-port ATM STM-1 serviceinterface board

OptiX OSN 7500 II

N1PEFF8 8xFE optical interface board OptiX OSN 7500, OptiX OSN 3500TNN1EFF8 8-port FE optical interface

boardOptiX OSN 7500 II

N1PETF8 8xFE electrical interfaceboard


N1MD12 Multi-protocol 32xE1interface board (120 ohms)


N1MD75 Multi-protocol 32xE1interface board (75 ohms)


EoD BoardsTable 2-6 lists all EoD boards and their applicable products.

Table 2-6 List of EoD boardsBoard Description Applicable ProductN1EDQ41 4-port 622/155 Mbit/s SDH

optical interface Ethernetdual-mode multi-functionprocessing board


SDH BoardsTable 2-7 lists all SDH boards and their applicable products.

Table 2-7 List of SDH boardsBoard Description Applicable ProductN4SLD64 2xSTM-64 optical interface

boardOptiX OSN 7500 II

N1SLD64 2xSTM-64 optical interfaceboard


T2SL64,T2SL64A

1xSTM-64 optical interfaceboard

OptiX OSN 7500



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Board Description Applicable ProductN1SF64,N1SF64A

1xSTM-64 optical interfaceboard (with the forward errorcorrection (FEC) function)


N1SL64 1xSTM-64 optical interfaceboard



OptiX OSN 3500


OptiX OSN 7500 II, OptiX OSN 7500,OptiX OSN 3500

N4SLO16 8xSTM-16 optical interfaceboard

OptiX OSN 7500 II

N1SLO16 8xSTM-16 optical interfaceboard


N4SLQ16 4xSTM-16 optical interfaceboard

OptiX OSN 7500 II

N1SLQ16,N2SLQ16



N1SLD16 2xSTM-16 optical interfaceboard

OptiX OSN 3500

N3SL16,N3SL16A


OptiX OSN 7500 II, OptiX OSN 7500,OptiX OSN 3500, OptiX OSN 1500A,OptiX OSN 1500B

N1SL16,N1SL16A,N2SL16,N2SL16A


OptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

N1SF16 1xSTM-16 optical interfaceboard (with the outband FECfunction)


N3SLH41 16xSTM-4/STM-1 opticalinterface board


N3SLQ41 4xSTM-4/STM-1 opticalinterface board


N1SLQ4,N2SLQ4,N1SLQ4A



N1SLD4,N2SLD4,N1SLD4A





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Board Description Applicable ProductR1SLD4 2xSTM-4 optical interface

board (divided slot)OptiX OSN 1500A, OptiX OSN 1500B

R1SL4 1xSTM-4 optical interfaceboard (divided slot)


N1SL4, N2SL4,N1SL4A



N1SLH1 16xSTM-1 signal processingboard


N1SLT1 12xSTM-1 optical interfaceboard


N1EU08 8xSTM-1 electrical interfaceboard

OptiX OSN 7500 II, OptiX OSN 7500,OptiX OSN 3500, OptiX OSN 1500B

N1OU08 8xSTM-1 optical interfaceboard (LC)


N2OU08 8xSTM-1 optical interfaceboard (SC)

OptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500B

N2SLO1,N3SLO1



N1SLQ1,N2SLQ1,N1SLQ1A



R1SLQ1 4xSTM-1 optical interfaceboard (divided slot)


N1EU04 4xSTM-1 electrical interfaceboard

OptiX OSN 3500, OptiX OSN 1500B

N1MU04 4xE4/STM-1 electricalinterface board

OptiX OSN 1500B

N1SEP1 2xSTM-1 line processingboard when interfaces areavailable on the front panel8xSTM-1 line processingboard when interfaces areavailable on thecorresponding interfaceboard


N1SL1, N2SL1,N1SL1A



R1SL1 1xSTM-1 optical interfaceboard (divided slot)




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PDH BoardsTable 2-8 lists all PDH boards and their applicable products.

Table 2-8 List of PDH boardsBoard Description Applicable ProductN1SPQ4 4xE4/STM-1 electrical

processing boardOptiX OSN 3500, OptiX OSN 1500B

N2SPQ4 4xE4/STM-1 electricalprocessing board


N1MU04 4xE4/STM-1 electricalinterface board


N2PQ3 12xE3/T3 service processingboard


N1D34S 6xE3/T3 electrical switchinginterface board


N1C34S 3xE3/T3 electrical switchinginterface board


N1PD3, N2PD3 6xE3/T3 service processingboard


N1PL3, N2PL3 3xE3/T3 service processingboard


N1PL3A,N2PL3A

3xE3/T3 service processingboard (Interfaces areavailable on the front panel.)


N1PQ1 63xE1 service processingboard


N2PQ1 63xE1 service processingboard


N1PQM 63xE1/T1 service processingboard


N1D12B 32xE1/T1 electricalswitching interface board


N1D12S 32xE1/T1 electricalswitching interface board(120 ohms)


N1D75S 32xE1 electrical switchinginterface board (75 ohms)




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Board Description Applicable ProductR1PD1, R2PD1 32xE1 service processing

boardOptiX OSN 1500A, OptiX OSN 1500B

R1PL1 16xE1 service processingboard


R1L12S 16xE1/T1 electricalswitching interface board(120 ohms)

OptiX OSN 1500A

R1L75S 16xE1 electrical switchinginterface board (75 ohms)

OptiX OSN 1500A

N1PFL1 8xE1 optical processingboard


N1TSB8 8-port electrical switchinginterface board


N1TSB4 4-port electrical switchinginterface board


N1DX1 DDN service accessing andconverging board


N1DXA DDN service converging andprocessing board


N1DM12 DDN service interface board OptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500B

EoS BoardsTable 2-9 lists all EoS boards and their applicable products.

Table 2-9 List of EoS boardsBoard Description Applicable ProductN1EFT8 8xFE/16xFE transparent

transmission boardOptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

N1EFT8A 8xFE transparenttransmission board


N1EFS0A 16xFE switching andprocessing board


N1EFS0 8xFE switching andprocessing board




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Board Description Applicable ProductN2EFS0,N4EFS0,N5EFS0

8xFE switching andprocessing board


N1EFS4,N2EFS4,N3EFS4

4xFE switching andprocessing board


R1EFT4 4xFE transparenttransmission board (dividedslot)


N1EAS2 2x10GE Layer 2 switchingand processing board


N1EMS4 4xGE and 16xFE switchingand processing board


N1EMS2 2xGE and 16xFE switchingand processing board


N1EGS4,N3EGS4,N4EGS4

4xGE switching andprocessing board


N1EGT2,N2EGT2

2xGE transparenttransmission board


N2EGS2,N3EGS2

2xGE switching andprocessing board


N1EFF8,N1EFF8A

8x100M Ethernet opticalinterface board


N1ETF8,N1ETF8A

8x100M Ethernet twisted-pair interface board


N1ETS8 8x10/100M Ethernet twistedpair interface switchingboard


ATM BoardsTable 2-10 lists all ATM boards and their applicable products.

Table 2-10 List of ATM boardsBoard Description Applicable ProductN1ADL4,N1IDL4

1xSTM-4 ATM serviceprocessing board




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Board Description Applicable ProductN1ADQ1,N1IDQ1

4xSTM-1 ATM serviceprocessing board


RPR BoardsTable 2-11 lists all PRP boards and their applicable products.

Table 2-11 List of RPR boardsBoard Description Applicable ProductN2EGR2 2xGE ring processing board OptiX OSN 7500, OptiX OSN 3500,

OptiX OSN 1500A, OptiX OSN 1500BN2EMR0 12xFE and 1xGE ring

processing boardOptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

SAN/Video BoardsTable 2-12 lists all SAN/video boards and their applicable products.

Table 2-12 List of SAN/video boardsBoard Description Applicable ProductN1VST4 4-port video service

transparent transmissionboard


N1MST4 4-port multi-servicetransparent transmissionboard


Microwave BoardsTable 2-13 lists all microwave boards and their applicable products.

Table 2-13 List of microwave boardsBoard Description Applicable ProductN1IFSD1 Dual-port IF board OptiX OSN 7500, OptiX OSN 3500,

OptiX OSN 1500A, OptiX OSN 1500BN1RPWR 6-channel ODU power board OptiX OSN 7500, OptiX OSN 3500,




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WDM BoardsTable 2-14 lists all WDM boards and their applicable products.

Table 2-14 List of WDM boardsBoard Description Applicable ProductTN11CMR4 4-channel optical add/drop

multiplexing boardOptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

TN11CMR2,TN11MR2,N1MR2A,N1MR2C

2-channel optical add/dropmultiplexing board


N1MR2B 2-channel optical add/dropmultiplexing board


TN11MR4 4-port optical add/dropmultiplexing board


N1CMD2 2-channel bidirectionaloptical multiplexer anddemultiplexer board


N1LWX Arbitrary bit rate wavelengthconversion board


N1FIB Filter isolating board OptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

Auxiliary BoardsTable 2-15 lists all auxiliary boards and their applicable products.

Table 2-15 List of auxiliary boardsBoard Description Applicable ProductT1EOW Orderwire processing board OptiX OSN 7500R1EOW Orderwire processing board OptiX OSN 1500A, OptiX OSN 1500BT1AUX System auxiliary interface

boardOptiX OSN 7500

N1AUX System auxiliary interfaceboard

OptiX OSN 3500

R1AUX,R2AUX

System auxiliary interfaceboard




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Board Description Applicable ProductR1AMU Orderwire processing or

alarm cascading boardOptiX OSN 1500A, OptiX OSN 1500B

TN81FAN Fan board OptiX OSN 7500 IIN1FANA Fan board (high power) OptiX OSN 7500N1FAN Fan board OptiX OSN 3500R1FAN Fan board OptiX OSN 1500A, OptiX OSN 1500B

Optical Amplifier Boards and Dispersion Compensation BoardsTable 2-16 lists all optical amplifier boards and dispersion compensation boards and theirapplicable products.

Table 2-16 List of optical amplifier boards and dispersion compensation boardsBoard Description Applicable ProductN1BPA Optical booster and pre-

amplifier boardOptiX OSN 7500, OptiX OSN 3500,OptiX OSN 1500A, OptiX OSN 1500B

N2BPA Optical booster and pre-amplifier board


N1COA,61COA, 62COA

Case-shaped opticalamplifier


N1DCU Dispersion compensationboard


N2DCU Dispersion compensationboard


TN11OBU1 Optical booster amplifierboard


TN12OBU1 Optical booster amplifierboard

OptiX OSN 7500 II

N1BA2 Optical booster amplifierboard


N1RPC01 Forward Raman drivingboard (external)


N1RPC02 Backward Raman drivingboard (external)




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Power BoardsTable 2-17 lists all power boards and their applicable products.

Table 2-17 List of power boardsBoard Description Applicable ProductTN81PIU Uninterruptible power

moduleOptiX OSN 7500 II

UPM Uninterruptible powermodule


T1PIU Power interface board(supporting standardsubracks)

OptiX OSN 7500

T1PIUB Power interface board(supporting type III subracks)

OptiX OSN 7500

N1PIUA Power interface board(supporting 1100 Wenhanced subrack.)

OptiX OSN 3500

N1PIUB Power interface board(supporting type III subracks)

OptiX OSN 3500

R1PIU Power interface board(supporting OptiX OSN1500B subrack)

OptiX OSN 1500B

R1PIUA Power interface board(supporting OptiX OSN1500A subrack)

OptiX OSN 1500A

R1PIUB Power interface board(supporting enhanced OptiXOSN 1500B subrack)

OptiX OSN 1500B

R1PIUC Power interface board(supporting enhanced OptiXOSN 1500A subrack)

OptiX OSN 1500A

2.2 Software ArchitectureThe software architecture of the OptiX OSN equipment consists of NE software, board software,NMS software, and communications protocols and interfaces.

2.2.1 OverviewThe software system is of a modular design. Each module provides specific functions and workswith other modules.



20

The entire software is distributed in three modules including board software, NE software andNM system.The software resides respectively on functional boards, the SCC, and NM computer. Hierarchicalstructure ensures that it is highly reliable and efficient. Each layer performs specific functionsand provides service for the upper layer.The system software architecture is shown in Figure 2-3.In the diagram, all modules are NE software except "Network Management System" and "BoardSoftware".

Figure 2-3 Software architecture

High LevelCommunication Module

Communication Module

Equipment ManagementModule

NE software

Network ManagementSystem

Board Software

DatabaseManagement

Module

Network side ModuleReal-timemulti-taskoperatingsystem



21

3 Packet Functions and Features3.1 Capacity

This section describes the switching capacity and slot access capacity of the OptiX OSNequipment in packet mode.

3.1.1 Packet Switching CapacityThe OptiX OSN equipment uses packet cross-connect boards to support packet switching.Table 3-1 provides the maximum switching capacity of the OptiX OSN 7500 II.

Table 3-1 Maximum switching capacity of the OptiX OSN 7500 IIBoard Maximum Switching

CapacityAccess Capacity of aSingle Subrack

TNN1PSXCS 320 Gbit/s 320 Gbit/s

3.1.2 Slot Access Capacity in Packet ModeWhen different cross-connect boards are used, the access capacity of each slot on the equipmentvaries.Figure 3-1 shows the slot access capacity of the OptiX OSN 7500 II when the TNN1PSXCSboard is used.

OptiX OSN 7500 II Intelligent Optical Switching SystemProduct Overview 3 Packet Functions and Features


22

Figure 3-1 Slot access capacity of the OptiX OSN 7500 II when the TNN1PSXCS board is used

Fiber troughFAN SLOT 43

Air f ilter

FAN SLOT 42

Fiber trough

SLOT1

SLOT2

SLOT3

SLOT4

SLOT5

SLOT6

SLOT7

SLOT8

SLOT9

SLOT10

SLOT11

SLOT12

SLOT13

SLOT14

SLOT15

SLOT16

SLOT17

SLOT18

SLOT26

SLOT27

SLOT28

SLOT29

SLOT30

SLOT31

SLOT32

SLOT33

SLOT22

SLOT23

SLOT24

SLOT35

SLOT34

SLOT35

SLOT36

SLOT37

SLOT38

SLOT39

SLOT40

SLOT41

XCS

XCS

PIU

PIU

SCA

SCA

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

20 G

bit/s

3.2 ServicesThis section describes the service types, interfaces, and maximum receiving capacity of eachservice type supported by the OptiX OSN equipment in packet mode.

3.2.1 Service InterfacesThis section provides the EthernetCES and ATM/IMA service interfaces supported by the OptiXOSN equipment in packet mode.Table 3-2 lists the Ethernet service interfaces on the OptiX OSN equipment.

Table 3-2 Ethernet service interfaces on the OptiX OSN equipmentType of Interface DescriptionFE electrical interface 100BASE-TXFE optical interface 100BASE-FX/LX/VX/ZX



23

Type of Interface DescriptionGE electrical interface 1000BASE-TGE optical interface 1000BASE-SX, 1000BASE-LX, 1000BASE-ZX,

1000BASE-VX10GE optical interface 10GBASE-LR, 10GBASE-ER, 10GBASE-ZR

Table 3-3 lists the CES and ATM/IMA service interfaces on the OptiX OSN equipment.

Table 3-3 CES and ATM/IMA service interfaces on the OptiX OSN equipmentType ofInterface

Description

CES (E1)interface

E1 electrical interface: DB44 connector

IMA (E1)interface

E1 electrical interface: DB44 connector

CES (STM-1)interface

STM-1 optical interfaces: S-1.1, L-1.1, and L-1.2

ATM (STM-1)interface

STM-1 optical interfaces: S-1.1, L-1.1, and L-1.2

3.2.2 Service Receiving CapacityThe capacities of services that the OptiX OSN equipment can receive vary according to the typeand quantity of the configured boards.Table 3-4 lists the maximum capacities of different services that the OptiX OSN equipment canreceive. The maximum capacity refers to the maximum number of services when a single subrackreceives only this specific type of service.

Table 3-4 Service receiving capacity of the OptiX OSN 7500 II (in packet mode)Service Type Maximum Number of Services

Supported By a Single SubrackFast Ethernet (FE optical interface) services 128Fast Ethernet (FE electrical interface) services 192Gigabit Ethernet (GE optical interface) services 128Gigabit Ethernet (GE electrical interface) services 19210 Gigabit Ethernet (10GE optical interface)services

32



24

Service Type Maximum Number of ServicesSupported By a Single Subrack

CES (E1) services 512IMA (E1) services 512CES (channelized STM-1) services 128ATM (channelized STM-1) services 128

3.3 Clock SynchronizationThe OptiX OSN equipment supports multiple synchronization technologies: traditional clocksynchronization, IEEE 1588v2 time and clock synchronization, synchronous Ethernet and circuitemulation service (CES) adaptive clock recovery (ACR).

3.4 Equipment Level ProtectionIn packet mode, the equipment supports various equipment level protection schemes.Table 3-5 lists the equipment level protection schemes supported by the OptiX OSN equipment.

Table 3-5 Equipment level protection schemes supported by the OptiX OSN 7500 IIService Type Protection SchemeEthernet (in packet mode) LAG

MC-LAGOthers 1+1 hot backup for the cross-connect

and timing board1+1 hot backup for the SCC unit1+1 hot backup for the powerinterface unit1:N protection for the +3.3 V powerof the boardIntelligent fanBoard protection modes underabnormal conditions

3.4.1 LAG ProtectionIn packet mode, LAG can realize intra-board link aggregation and inter-board link aggregation.



25

Table 3-6 lists the parameters of the LAG protection.

Table 3-6 Specifications associated with LAGItem SpecificationsSupport capability l Number of LAGs

OptiX OSN 7500 II: 128 OptiX OSN 7500/3500: 64 OptiX OSN 1500: 16

l Number of members in a LAG OptiX OSN 7500 II/7500/3500: 16 OptiX OSN 1500: 8

Load sharing mode l Load sharingl Load non-sharing

LAG type l Staticl Manual

WTR time (min) 1 to 30Default value: 10

Revertive mode l Revertive (default)l Non-revertive

Switching time l If a link fails bidirectionally,switching time varies depending on LAG protectionport types. For LAG protection between optical ports on a

board, switching time does not exceed 100 ms. For LAG protection between optical ports on

different boards, switching time does not exceed500 ms. For LAG protection between electrical ports,

switching time does not exceed 2s.l If a link fails unidirectionally,

switching time does not exceed 3s regardless ofLAG protection port types.

Switching condition (Any of thefollowing conditions triggers theswitching.)

l Manual aggregation: The working port is faulty. The working mode of port changed.

l Static aggregation: The working port is faulty. The working mode of port changed. The priority of port changed. The priority of system changed.



26

Item SpecificationsNOTE

A unidirectional fiber cut triggers a single-ended protection switching lasting not longer than 3s when thefollowing conditions are met: (1) The LAG is in manual aggregation mode and the ports are full-duplex;(2) The revertive mode of the LAG is non-revertive; (3) The load sharing mode of the LAG is non-loadsharing.The system provides intra-board port LAG protection, which complies with the IEEE 802.3ad standard.

3.4.2 MC-LAG ProtectionOn a Layer 2 network, if the OptiX OSN equipment is interconnected with the RNC equipmentin dual-homing mode, the MC-LAG scheme can be adopted to achieve dual-homing protection.Table 3-7 lists the MC-LAG parameters.

Table 3-7 Specifications associated with MC-LAGItem SpecificationsSupport capability 64Load Sharing Mode Load non-sharingRevertive Mode Revertive

Non-revertiveSwitching Protocol LACP protocolSwitching time l The links of the interconnected equipment are directly

connected to each other, and the fiber is cut in bothdirections. Switching time 500 ms.

l The links of the interconnected equipment are directlyconnected to each other, and the fiber is cut in onedirection. In addition, the ports of the interconnectedequipment are set to the auto-negotiation mode. Switchingtime 500 ms.

l The links of the interconnected equipment are directlyconnected to each other, and the fiber is cut in onedirection. Switching time 3s.

Switching condition (Anyof the conditions triggersthe switching.)

l Manual aggregation: The working port is faulty. The port working mode changes.

l Static aggregation: The working port is faulty. The port working mode changes. The port priority changes. The system priority changes.



27

3.5 Network Level ProtectionThe OptiX OSN equipment supports various network level protection schemes.Table 3-8 lists the network level protection schemes supported by the OptiX OSN equipment.

Table 3-8 Network level protection schemes supported by the OptiX OSN 7500 IINetwork Level Protection SchemeEthernet MPLS Tunnel APS

MPLS PW APSLPT Protection

CES Packet-based linear MSP

3.5.1 MPLS Tunnel APS ProtectionThe equipment supports the MPLS Tunnel APS protection only in packet mode. In the MPLSTunnel APS protection, the protection path protects the service that is transported in the workingpath. When the working path is faulty, the service is switched to the protection path. The 1+1protection adopts the dual fed and selective receiving mechanism, and the 1:1 protection adoptsthe single fed and single receiving mechanism.Table 3-9 lists the parameters of the MPLS Tunnel APS protection.

Table 3-9 Specifications associated with MPLS tunnel APSItem SpecificationsSupport capability l OptiX OSN 7500 II: 4K

l OptiX OSN 7500/3500: N4GSCC: 1K N6GSCC: 4K

l OptiX OSN 1500: 128Switching Type l 1+1 single-ended switching

l 1+1 dual-ended switchingl 1:1 dual-ended switching

Revertive Mode l Revertivel Non-revertive

WTR time l Revertive: 1 minute to 12 minutes, 5 minute by default.l Non-revertive: -

Switching Protocol APS



28

Item SpecificationsSwitching Mode l Clear switching

l Locked switchingl Forced switchingl Automatic switchingl Manual switchingl Exercise switching

Switching Time 50 msSwitching Delay Time 0s to 10s (0s by default), which can be set at a step length of 100

msSwitching Condition(Any of the followingconditions triggers theswitching)

l The board has a hardware or software failure.l A cold reset is performed on the board.l A switching command is manually issued.l A working tunnel failure is detected by MPLS OAM.

3.5.2 PW APS ProtectionPW APS provides network-level protection. In PW APS, a protection PW is created to protectthe working PW once it fails. PW APS is available in three types: PW APS 1+1, PW APS 1:1,and PW Fast Protection Switching(FPS).Table 3-10 provides the parameters of PW APS.

Table 3-10 Specifications associated with MPLS PW APSItem SpecificationCapacity Number of supported MPLS PW APS groups:

l OptiX OSN 7500 II: 4Kl OptiX OSN 3500/7500:

N4GSCC: 1K N6GSCC: 4K

l OptiX OSN 1500: 128A PW APS protection group supports 512 slave protection pairs.The switching performance of a slave protection pair depends onthe associated PW APS protection group.NOTE

PW APS and MPLS tunnel APS share one APS protection group.



29

Item SpecificationSwitching Type l 1+1 single-ended switching

l 1+1 dual-ended switchingl 1:1 dual-ended switchingl PW FPS single-ended switchingNOTE

The OptiX OSN 3500, OptiX OSN 7500, and OptiX OSN 7500 II supportPW FPS; the OptiX OSN 1500 does not support PW FPS.

Revertive Mode l Revertivel Non-revertive

Switchover RestorationTime(m)

l Restoration Mode being Revertive: 1 minute to 12 minutes(1 minute by default)

l Restoration Mode being Non-Revertive: This parametercan be set but the setting does not apply.

Switching Protocol APSNOTE

PW FPS does not support the APS protocol.

Switching Mode l Locked switchingl Forced switchingl Automatic switchingl Manual switchingl Exercise switching

Switching Time l For 1+1 or 1:1 PW APS: 50 msl For PW FPS:

NNI-side fault: 50 ms UNI-side single-fiber fault: 4s UNI-side dual-fiber fault: 2s

Switching Delay Time 0s to 10s (0s by default), which can be set at a step length of 100ms

Switching Condition(Any of the followingconditions triggers theswitching)

l The board has a hardware or software failure.l A cold reset is performed on the board.l A switching command is manually issued.l A working PW failure is detected by PW OAM.For PW FPS, the extra switching conditions are:l Port-associated alarml Ethernet port OAM alarm



30

3.5.3 Packet-based Linear MSPThe OptiX OSN equipment supports PWE3 CES services, therefore transmitting TDM serviceson a packet switched network (PSN). The equipment can be configured with the linear MSP forCES services to ensure reliable service transmission.Table 3-11 lists the parameters for packet-based linear MSP.

Table 3-11 Specifications associated with packet-based linear MSPItem SpecificationsSupport capability 20Protection Type l 1+1 single-ended switching

l 1+1 dual-ended switchingl 1:1 dual-ended switching

Revertive Type l Revertivel Non-revertive

WTR Time l Revertive: 6 s to 720 s, 600 s by default.l Non-revertive: -

Switching Protocol l 1+1 single-ended switching: not requiredl 1+1 dual-ended switching: APS protocoll 1:1 dual-ended switching: APS protocol

Switching Time 50 msHold-Off Time 0 s to 10 s (0 s by default)Switching Condition(Any of the Followingconditions Triggers theSwitching.)

l R_LOSl R_LOFl MS_AISl B2_EXCl B2_SD (optional)l Forced switchingl Manual switchingl Exercise switchingl Clear switchingl Lockout switching

3.5.4 LPTThe link state pass through (LPT) function can detect the faults that occur at the service accessnode or on the intermediate transmission network, and then can instruct the equipment at bothends of the transmission network to start the backup network immediately for communication.In this manner, LPT ensures normal transmission of the important data.



31

As a protection scheme based on links, LPT is available in point-to-point and point-to-multipointmodes and is able to provide network level protection for transmission of point-to-point privateline services and point-to-multipoint convergence services.Table 3-12 provides the parameters for LPT.

Table 3-12 Specifications of the LPT featureItem SpecificationsNumber of NEssupported by LPT

l OptiX OSN 7500 II/7500/3500: 96l OptiX OSN 1500: 16

Switching mode l Strict model Non-strict modeNOTE

The LPT switching mode is available only to point-to-multipoint LPT.

Fault detectionmechanism

LPT OAM PW OAM

Switching condition l ETH_LOSl ETH_LINK_DOWNl LSR_NO_FITED

NNI side:l dServerl dLOCVl dTTSI_Mismatchl dTTSI_Mismergel dExcessUNI side:l ETH_LOSl ETH_LINK_DOWNl LSR_NO_FITED

Switching time Faults on the access side: 3 sFaults on the network side: 300 ms

3.6 Board FunctionsThe OptiX OSN equipment provides the data boards listed later to meet the requirements ofpacket features when the equipment uses the cross-connect boards that support the packetswitching function.

3.6.1 Packet Processing BoardsThe OptiX OSN equipment supports the packet processing boards listed in the tables.Table 3-13 lists the functions and features of the EX2 board.



32

Table 3-13 Functions and features of the EX2 boardFunctionandFeature

Description

Basicfunctions

Provides two 10GE optical interfaces, and can transmit/receive and process2x10GE services.

Functionswhen beingused with aninterfaceboard

Provides interfaces on the front panel.

Interfacetypes

l Supports the 10GBASE-LR (LAN), 10GBASE-ER (LAN), and10GBASE-ZR (LAN) Ethernet optical interfaces, which use Lucentconnector (LC) connectors. Supports the transmission distances of 10 km,40 km, and 80 km.

l Supports the coarse wavelength division multiplexing (CWDM) and densewavelength division multiplexing (DWDM) colored optical interfaces,which use LC connectors. The CWDM optical interface supports thetransmission distance of 70 km; the DWDM optical interface supports thetransmission distances of 40 km and 80 km.

Interfacecharacteristics

Hot-swappingopticalmodule

Supports hot swapping of XFP optical modules.

Workingmodes

10GE full-duplex (only in LAN mode)

Flowcontrolat ports

Auto-negotiation mode

Not supported

Non-autonegotiationmode

Supported

Query/Settingof portstatus

Supported

Queryofinterface types

Supported



33

FunctionandFeature

Description

Settingofopticalpowerthresholds

The setting of input optical power thresholds is supported.

Servicespecifications

Processingcapability

20 Gbit/s in full-duplex mode

Servicebearingmodes

MPLS SupportedQinQ SupportedPort Supported

MTU MTU forports

Ranges from 960 to 9000 bytes, with the default valueof 1620.

MTU forservices


PWspecifications

Maximumnumber ofPWs

Supports 16k bidirectional static PWs.

MS-PW Supports static switching of MS-PWs.Tunnelspecifications

Unidirectional

16k

Bidirectional

8k

Ethernetservicetype

E-Lineservice

Number of supported E-Line services: 8k

E-LANservice

Number of supported E-LAN services: 1kNumber of static MAC addresses in E-LAN services:2k

E-AGGRservice

Not supported

Formats ofEthernet dataframes

Supports the encapsulation in IEEE 802.3 format, Ethernet IIformat, or IEEE 802.1q/p format.



34

FunctionandFeature

Description

MaximumnumberofQinQlinks

4k

MaximumnumberofVLANs

4k

Jumboframe

A maximum length of 9000 bytes

Protectionschemes

MPLSTunnelAPS

Type Supports the 1+1 (single-ended/dual-ended) and 1:1(dual-ended) MPLS Tunnel APS.

Number 1kMPLSPWAPS

Type Supports the PW FPS (single-ended), 1+1 (single-ended/dual-ended) and 1:1 (dual-ended) MPLS PWAPS.

Number Supports a maximum of 1k MPLS PW APS protectiongroups, and a slave protection pair can bind amaximum of 512 members.NOTE

MPLS PW APS and MPLS Tunnel APS share the protectionresources.

LAG Supports manual link aggregation and static link aggregation.Supports the load sharing mode and load non-sharing mode.

MC-LAG

Supported

Multiplespanning treeprotocol(MSTP)

Not supported

LPT forpacketservices

Point-to-point LPT

Supported



35

FunctionandFeature

Description

Point-to-multipointLPT

Supported

Clocksynchronization

SynchronousEthernet

Supports two synchronous Ethernet clocks.

IEEE1588v2

Supports two IEEE 1588v2 clocks.

Maintenance features

ETH-OAM

IEEE802.1ag

Supports CC, LB, LT, LM and 2DM.

IEEE802.3ah

Supports OAM auto discovery, fault detection, andlink performance monitoring.

MPLSOAM

MPLStunnelOAM

Supports CV, FFD, BDI, FDI, MPLS Tunnel ping, andMPLS Tunnel traceroute functions, in compliancewith ITU-T Y.1711.Number of MPLS tunnels that support OAM: 2k

MPLS PWOAM

Supports CV, FFD, BDI, FDI, PW ping and PWtraceroute in compliance with ITU-T Y.1711.Number of MPLS PWs that support OAM: 2kNOTE

MPLS PW OAM and MPLS tunnel OAM share theresources.

Loopbackcapability

PHY layerat Ethernetports

Not supported.

MAClayer atEthernetports

Supports inloops and outloops.

RMONperformance

Supported.

InbandDCN

Supported.

HQoS Provides the HQoS function, including the scheduling function at multiplelevels for the flow queue and port queue and the bandwidth restricting function,and provides the corresponding statistical information.

IGMPsnooping

Supported.



36

FunctionandFeature

Description

Query ofelectroniclabels

Supported.

Table 3-14 lists the functions and features of the EG8 board.

Table 3-14 Functions and features of the EG8 boardFunctionandFeature

Description

Basicfunctions

Provides eight GE interfaces, and can transmit/receive and process 8xGEservices.

Functionswhen beingused with aninterfaceboard

Works with an interface board ETMC/EFF8/AFO1/CO1/D75E/D12E. OneEG8 board can transmit/receive the service of a maximum of two interfaceboards.

Interfacetypes

l Supports the 1000BASE-SX, 1000BASE-LX, 1000BASE-VX, and1000BASE-ZX optical interfaces, which use LC connectors. Supports thetransmission distances of 0.5 km, 10 km, 40 km, and 80 km.

l Supports the CWDM and DWDM colored optical interfaces, which use LCconnectors. The CWDM optical interface supports the transmissiondistances of 40 km and 80 km; the DWDM optical interface supports thetransmission distance of 120 km.

l Supports the GE electrical interface which uses the RJ45 connector andmeets the specifications of the 1000BASE-TX Physical Layer specified inIEEE 802.3.


Hot-swappingopticalmodule

Supports eSFP optical modules.

Workingmodes

Full-duplex and auto-negotiation for GE optical interfacesAuto-negotiation for GE electrical ports (the negotiation result canonly be 1000M full duplex)

Flowcontrolat ports

Auto-negotiation mode

Supported.



37

FunctionandFeature

Description

Non-autonegotiationmode

Supported.


Supported


Supported


The setting of input optical power thresholds is supported.


Processingcapability

12 Gbit/s in full-duplex mode (the maximum access capacity of anEG8 board when it works with an ETMC board)

Servicebearingmodes


PWspecifications

Maximumnumber ofPWs

Supports 16k bidirectional static PWs.

MS-PW Supports static switching of MS-PWs.Tunnelspecifications

Unidirectional

16k

Bidirectional

8k

MTU MTU forports


MTU forservices


Ethernet

E-Lineservice

Number of supported E-Line services: 8k



38

FunctionandFeature

Description

servicetype

E-LANservice

Number of supported E-LAN services: 1kNumber of static MAC addresses in E-LAN services:2k

E-AGGRservice

Not supported

Formats ofEthernet dataframes

Supports the encapsulation in IEEE 802.3 format, Ethernet IIformat, or IEEE 802.1q/p format.

MaximumnumberofQinQlinks

4k

MaximumnumberofVLANs

4k

Jumboframe

A maximum length of 9000 bytes

Protectionschemes

MPLSTunnelAPS

Type Supports the 1+1 (single-ended/dual-ended) and 1:1(dual-ended) MPLS Tunnel APS.

Number 1kMPLSPWAPS

Type Supports the PW FPS (single-ended), 1+1 (single-ended/dual-ended) and 1:1 (dual-ended) MPLSTunnel APS.

Number Supports a maximum of 1k MPLS PW APS protectiongroups, and a slave protection pair can bind amaximum of 512 members.NOTE

MPLS PW APS and MPLS Tunnel APS share the protectionresources.

LAG Supports manual aggregation and static aggregation.Supports the load sharing mode and load non-sharing mode.

MC-LAG

Supported



39

FunctionandFeature

Description

Multiplespanning treeprotocol(MSTP)

Not supported


Point-to-point LPT

Supported


Supported


SynchronousEthernet

Supports eight synchronous Ethernet clocks (only by GE opticalinterfaces).

IEEE1588v2

Supports eight IEEE 1588v2 clocks (only by GE optical interfaces).

Maintenance features

ETH-OAM

IEEE802.1ag

Supports CC, LB, LT, LM and 2DM.

IEEE802.3ah

Supports OAM auto discovery, remote loopbacks,fault detection, and link performance monitoring.

MPLSOAM

MPLStunnelOAM

Supports CV, FFD, BDI, FDI, MPLS Tunnel ping, andMPLS Tunnel traceroute functions, in compliancewith ITU-T Y.1711.Number of MPLS tunnels that support OAM: 2k

MPLS PWOAM

Supports CV, FFD, BDI, FDI, PW ping and PWtraceroute in compliance with ITU-T Y.1711.Number of MPLS PWs that support OAM: 2kNOTE

MPLS PW OAM and MPLS tunnel OAM share theresources.

Loopbackcapability

PHY layerat Ethernetports

Not supported.





40

FunctionandFeature

Description

RMONperformance

Supported.

InbandDCN

Supported.

HQoS Provides the HQoS function, including the scheduling function at multiplelevels for the flow queue and port queue and the bandwidth restricting function,and provides the corresponding statistical information.

IGMPsnooping

Supported.

Query ofelectroniclabels

Supported.

3.6.2 Packet Interface BoardsThe OptiX OSN equipment supports the packet interface boards listed in the tables.Table 3-15 lists the functions and features of the EFF8 board.

Table 3-15 Functions and features of the EFF8FunctionandFeature

EFF8

Basicfunctions

Receives and transmits 8xFE optical signals.

Portspecifications

Supports 100BASE-LX/VX/ZX Ethernet optical interfaces. The optical interfaceuses the LC connector, and supports the transmission distances of 15 km, 40 km,and 80 km.


Hotswappable SFPopticalmodule

Supported

Working mode

100M full-duplex



41

FunctionandFeature

EFF8

Flowcontrolat ports

Auto-negotiationmode

Not supported

Non-autonegotiation mode

Not supported


Supported


Supported


Supported


Servicebearingmodes


MTU Port MTU Supports the setting of the packet length, which rangesfrom 960 bytes to 1976 bytes. After the setting becomesvalid, the length of the packets that enter or exit the portsis restricted by the pre-set MTU.

ServiceMTU

64 to 9000 bytes, with a default value of 1500 bytes

Ethernetservicecapability

E-Line SupportedE-LAN SupportedE-AGGR Not supportedJumboframe

Supports a jumbo frame with a length not more than 1976bytes.

Formats ofEthernetdata frames

IEEE 802.3, Ethernet II, IEEE 802.1q/p



42

FunctionandFeature

EFF8

MS-PW SupportedProtectionschemes

MPLSTunnelAPS

Supported

MPLSPWAPS

Supported

LAG SupportedMC-LAG

Supported


Point-to-point LPT

Supported


Supported


SynchronousEthernet

Supported

IEEE1588v2

Not supported

Loopbackcapability

PHYlayer atEthernetports

Inloops


Inloops and outloops

InbandDCN

Supported

HQoS SupportedRMONperformance

Supported



43

FunctionandFeature

EFF8

IGMPSnooping

Supported

Queryofelectroniclabels

Supported

Table 3-16 lists the functions and features of the ETMC board.

Table 3-16 Functions and features of the ETMC boardFunctionandFeature

Description

Basicfunctions

Supports eight FE fixed electrical interfaces and four GE/FE adaptive electricalinterfaces to transmit/receive 12xFE or 4xGE electrical signals.NOTE

If both FE and GE electrical ports are used, the total bandwidth cannot exceed 2GE. The boardsin slots 1, 3, 5, 7, 9, and 11 share 1 Gbit/s bandwidth, and the boards in slots 2, 4, 6, 8, 10, and12 share 1Gbit/s bandwidth.

Interfacetypes

Supports 1000BASE-T and 100BASE-T Ethernet electrical interfaces, which useRJ45 connectors and are in compliance with IEEE 802.3u.


Working modes

GE electrical interfaces: 100M half-duplex, 100M full-duplex, 1000Mfull-duplex, and auto-negotiation.FE electrical interfaces: 100M half-duplex, 100M full-duplex, and auto-negotiation.

Flowcontrolat ports

Auto-negotiationmode

Not supported.

Non-autonegotiation mode

Not supported.



44

FunctionandFeature

Description


Supported.


Supported.


Servicebearingmodes

MPLS Supported.QinQ Supported.Port Supported.

MTU MTU forports

Supports the setting of the packet length, which rangesfrom 960 bytes to 1976 bytes. After the setting becomesvalid, the length of the packets that enter or exit the portsis restricted by the pre-set MTU.

MTU forservices

Ranges from 64 to 9000 bytes, with the default value of1500.

Ethernetservicecapability

E-Lineservice

Supported.

E-LANservice

Supported.

E-AGGRservice

Not supported.

Jumboframe

Supports a jumbo frame with a length not more than1976 bytes.

MS-PW Supports static switching of MS-PWs.Protectionschemes

MPLSTunnelAPS

1+1 (single-ended/dual-ended) and 1:1 (dual-ended)

MPLSPWAPS

1+1 (single-ended/dual-ended), 1:1 (dual-ended), and PW FPS (single-ended)

LAG Supported.MC-LAG

Supported.



45

FunctionandFeature

Description


Point-to-point LPT

Supported.


Supported.


SynchronousEthernet

Supports 12 synchronous Ethernet clocks.

IEEE1588v2

Supports 12 IEEE 1588v2 clocks.

Loopbackcapability

PHYlayer atEthernetports

l FE interface: inloopsl GE interface: inloops and outloops



InbandDCN

Supported.

HQoS Provides the HQoS function, including the scheduling function at multiple levelsfor the flow queue and port queue and the bandwidth restricting function, andprovides the corresponding statistical information.

RMONperformance

Supported.

IGMPsnooping

Supported.

Queryofelectroniclabels

Supported.

Table 3-17 lists the functions and features of the AFO1 board.



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Table 3-17 Functions and features of the AFO1 boardFunction andFeature

Description

Basicfunctions

Provides eight STM-1 ATM optical interfaces, and can transmit/receive eightATM services.

Interfacespecifications

Supports different types of standard optical interfaces, namely, S-1.1, L-1.1, andL-1.2 to meet requirements for transmission distances. The characteristics of theoptical interfaces comply with ITU-T G.957.


Automatic lasershutdown

Not supported

Auto disabling ofport loopback

Supported.

Detection and queryof optical moduleinformation

Supported.

Hot insertion andremoval of SFPoptical modules

Supported.

Loopback type

Port loopback Supports inloops and outloops.

ATM Number of V-UNIports

8k

Number of V-NNIports

4k

Cell concatenation Mode ConcatenationNon-concatenation

Maximum numberof concatenatedcells

31

ATM OAM Type CCLBAISRDI

Quantity 8k



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Function andFeature

Description

Service type CBRUBRUBR+rt-VBRnrt-VBR

ATM QoS SupportedBit errortestfunction

Supports the function of testing bit errors and reports specific performance eventsin the case of bit errors.

Protectionscheme

Packet-based linearMSP

1+11:1

Queryof lasertransmissiondistance

Supported

Table 3-18 lists the functions and features of the CO1 board.

Table 3-18 Functions and features of the CO1 boardFunction andFeature

Description

Basic functions Provides eight channelized STM-1 optical interfaces and works with anEG8 board to process fractional E1 services and 64 kbit/s CES services.

Interface types Supports different types of standard optical interfaces, namely, S-1.1,L-1.1, and L-1.2 to meet requirements for transmission distances. Thecharacteristics of the optical interfaces comply with ITU-T G.957.


Automatic laser shutdown Not supported.Loopback types of the port Inloops and outloops at STM-1 ports

Inloops and outloops on VC-12 pathsAuto disabling of portloopback

Supported.

Detection and query of opticalmodule information

Supported.



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Function andFeature

Description

Hot insertion and removal ofSFP optical modules

Supported.

CES Number of supported CESservices

504

Supported emulation mode CESoPSNSAToP

Timeslot compression Supported.Jitter compensation bufferingtime

0.375 ms to 16 ms, in increments of 0.125ms

Packet loading time 0.25 ms to 5 ms, in increments of 0.125ms

Protectionscheme

Packet-based linear MSP 1+11:1

SSM protocol Supported.PRBS Not supportedQuery of lasertransmissiondistance

Supported

Table 3-19 lists the functions and features of the D75E board.

Table 3-19 Functions and features of the D75E boardFunctionandFeature

Description

Basicfunctions

Provides 32 E1 ports, and can transmit/receive 32 fractional E1 services or thirty-two 64 kbit/s CES/IMA services.

Interfacetypes

Supports 75-ohm E1 electrical interface. The electrical interface uses the DB44connector.


Loopback types ofthe port


Auto disabling ofport loopback

Supported

CES Number of supportedCES services

32



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FunctionandFeature

Description

Supported emulationmode

CESoPSNSAToP

Timeslotcompression

Supports the timeslot compression function. In the caseof the CES service in CESoPSN mode, the D75Ecompresses idle timeslots to improve the bandwidthutilization on the NNI side.

Jitter compensationbuffering time

0.375 ms to 16 ms, in increments of 0.125 ms

Packet loading time 0.125 ms to 5 ms, in increments of 0.125 msATM/IMA

Number of supportedIMA groups

32

Maximum number ofE1 links in each IMAgroup

16

Number of V-UNIports

8k

Number of V-NNIports

4k

Cell concatenation Mode ConcatenationNon-concatenation

Maximum numberof concatenated cells

31

ATM OAM Type CCLBAISRDI

Quantity 8kService type CBR

UBRUBR+rt-VBRnrt-VBR

ATM QoS Supported.



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FunctionandFeature

Description

Clockfunction

Restores four CES adaptive clock recover (ACR) clocks.Clocks that are recovered from services over ports 1 and 9 can be added to theclock priority list.NOTE

Clock recovery over ports 1 to 16 is independent of clock recovery over ports 17 to 32. Thatis, clocks that are recovered from services over ports 1 to 16

OSN 7500 II V200R011C02 Product Overview 03

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