01-OSN1500 System Description

OptiX OSN 1500 Technical Manual - System Description Contents

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary i

Contents

1 Network Application............................................................................................................ 1-1

2 Functions ................................................................................................................................ 2-1 2.1 Capacity .......................................................................................................................................2-1

2.1.1 Cross-Connect Capacity .....................................................................................................2-1 2.1.2 Access Capacity of Slots ....................................................................................................2-2 2.1.3 Service Access Capability ..................................................................................................2-3

2.2 Interface .......................................................................................................................................2-4 2.2.1 Service Interface.................................................................................................................2-4 2.2.2 Administration and Auxiliary Interface ..............................................................................2-5

2.3 Built-in WDM Technology ..........................................................................................................2-5 2.4 110 V/220 V Power Supply..........................................................................................................2-6 2.5 Clock............................................................................................................................................2-6 2.6 Protection .....................................................................................................................................2-7

2.6.1 Equipment Level Protection ...............................................................................................2-7 2.6.2 Network Level Protection...................................................................................................2-7 2.6.3 Adjustable MS Bandwidth..................................................................................................2-8 2.6.4 Upgrading MS Bandwidth..................................................................................................2-8 2.6.5 Squelching Function in Multiplex Section .........................................................................2-8

2.7 NM Information Interworking .....................................................................................................2-9 2.7.1 Interworking at Physical Layer ..........................................................................................2-9 2.7.2 Interworking at Network Layer ........................................................................................2-10

2.8 TCM...........................................................................................................................................2-12

3 Hardware................................................................................................................................ 3-1 3.1 Cabinet .........................................................................................................................................3-1 3.2 Subrack ........................................................................................................................................3-2

4 Boards ..................................................................................................................................... 4-1 4.1 Type..............................................................................................................................................4-1 4.2 Slot ...............................................................................................................................................4-3

4.2.1 OptiX OSN 1500 A ............................................................................................................4-3 4.2.2 OptiX OSN 1500 B ............................................................................................................4-7

Contents OptiX OSN 1500

Technical Manual - System Description

ii Huawei Technologies Proprietary T2-040263-20060320-C-1.50

5 Software Structure ................................................................................................................ 5-1 5.1 Overview......................................................................................................................................5-1 5.2 NE Software.................................................................................................................................5-1 5.3 Board Software ............................................................................................................................5-2 5.4 NM System ..................................................................................................................................5-3

6 Data Features ......................................................................................................................... 6-1 6.1 Ethernet ........................................................................................................................................6-1

6.1.1 Function..............................................................................................................................6-1 6.1.2 Application .........................................................................................................................6-5 6.1.3 Protection............................................................................................................................6-8

6.2 RPR Features .............................................................................................................................6-10 6.2.1 Function............................................................................................................................6-10 6.2.2 Application .......................................................................................................................6-14 6.2.3 Protection..........................................................................................................................6-16

6.3 ATM Features.............................................................................................................................6-20 6.3.1 Functions ..........................................................................................................................6-20 6.3.2 Application .......................................................................................................................6-22 6.3.3 Protection..........................................................................................................................6-24

6.4 SAN Features .............................................................................................................................6-25

7 Protection ............................................................................................................................... 8-1 7.1 Equipment Level Protection.........................................................................................................8-1

7.1.1 TPS Protection for Service Processing Boards...................................................................8-1 7.1.2 1+1 Hot Backup for the GSCC , Cross-Connect Unit and Timing Unit.............................8-2 7.1.3 1+1 Hot Backup for the Power Input Unit .........................................................................8-3 7.1.4 1:N Protection for the +3.3 V Board Power Supply...........................................................8-3 7.1.5 Abnormality-Specific Service Protection ...........................................................................8-3

7.2 Network Level Protection ............................................................................................................8-4 7.2.1 Basic Networking Modes ...................................................................................................8-4 7.2.2 SDH Trail Protection ..........................................................................................................8-5 7.2.3 SNCP..................................................................................................................................8-6 7.2.4 Fibre-shared Virtual Trail Protection..................................................................................8-7 7.2.5 MS-Shared Optical Path Protection....................................................................................8-7 7.2.6 Protection for Interworking Service on Rings....................................................................8-9

8 OAM ....................................................................................................................................... 9-1 8.1 Operation and Maintenance .........................................................................................................9-1 8.2 Administration..............................................................................................................................9-2

9 Technical Specifications .................................................................................................... 10-1 9.1 Optical Interface Performance ...................................................................................................10-1

9.1.1 SDH Optical Interface ......................................................................................................10-1

OptiX OSN 1500 Technical Manual - System Description Contents

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary iii

9.1.2 Ethernet Optical Interface.................................................................................................10-4 9.1.3 ATM Optical Interface......................................................................................................10-4 9.1.4 Laser Level .......................................................................................................................10-4

9.2 Electrical Interface Performance................................................................................................10-5 9.2.1 PDH Interface...................................................................................................................10-5 9.2.2 Auxiliary Interface............................................................................................................10-6

9.3 Clock Performance.....................................................................................................................10-8 9.3.1 Clock Interface Type ........................................................................................................10-8 9.3.2 Timing and Synchronization Performance .......................................................................10-8

9.4 Transmission Performance.........................................................................................................10-8 9.5 Power Supply Parameters ..........................................................................................................10-9 9.6 Timeslot Number .......................................................................................................................10-9 9.7 Power Consumption and Weight of Boards .............................................................................10-10 9.8 Electromagnetic Compatibility ................................................................................................10-11 9.9 Environmental Index................................................................................................................10-12 9.10 Environment Requirement .....................................................................................................10-12

9.10.1 Environment for Storage ..............................................................................................10-13 9.10.2 Environment for Transportation ...................................................................................10-15 9.10.3 Environment for Operation...........................................................................................10-17

OptiX OSN 1500 Technical Manual - System Description Figures

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary v

Figures

Figure 1-1 Appearance of the OptiX OSN 1500 A ...........................................................................1-1

Figure 1-2 Appearance of the OptiX OSN 1500 B ...........................................................................1-2

Figure 1-3 Application of the OptiX OSN 1500 in the network .......................................................1-2

Figure 2-1 Access capacity of slots in OptiX OSN 1500 A ..............................................................2-2

Figure 2-2 Access capacity of slots in OptiX OSN 1500 B ..............................................................2-3

Figure 2-3 NM information transparently transmitted by third party equipment .............................2-9

Figure 2-4 The NM information of the third party equipment is transparently transmitted ...........2-10

Figure 2-5 The NM information transparently transmitted by the third party equipment...............2-10

Figure 2-6 The NM information of the third party equipment is transparently transmitted ...........2-11

Figure 2-7 Transparent transmission of NM information by the third party equipment (OSI) .......2-11

Figure 2-8 Transparent transmission of NM information of third party equipment (OSI) .............2-12

Figure 3-1 OptiX OSN 1500 A subrack ............................................................................................3-2

Figure 3-2 OptiX OSN 1500 B subrack ............................................................................................3-2

Figure 4-1 System architecture of the OptiX OSN 1500 ..................................................................4-1

Figure 4-2 Slot distribution of OptiX OSN 1500 A ..........................................................................4-3

Figure 4-3 Slot layout before division of the slots ............................................................................4-7

Figure 4-4 Slot layout after division of the slots...............................................................................4-7

Figure 5-1 Software system structure of the OptiX OSN 1500.........................................................5-1

Figure 6-1 The EPL service based on port ........................................................................................6-5

Figure 6-2 The EPL service based on port +VLAN..........................................................................6-6

Figure 6-3 The EVPL service with MPLS label ...............................................................................6-6

Figure 6-4 Layer 2 switching of Ethernet service .............................................................................6-7

Figure 6-5 Application of EVPLAN service .....................................................................................6-8

Figure 6-6 LCAS adjusts bandwidth dynamically ............................................................................6-9

Figure 6-7 LCAS protects the virtual concatenation group ..............................................................6-9

Figure 6-8 RPR ring........................................................................................................................6-10

Figures OptiX OSN 1500


vi Huawei Technologies Proprietary T2-040263-20060320-C-1.50

Figure 6-9 Spatial reuse ..................................................................................................................6-13

Figure 6-10 Fairness algorithm when the weight is 1 .....................................................................6-14

Figure 6-11 Fairness algorithm when the weights are different ......................................................6-14

Figure 6-12 EVPL accessing, forwarding and stripping .................................................................6-15

Figure 6-13 EVPL service convergence..........................................................................................6-15

Figure 6-14 EVPLAN service.........................................................................................................6-16

Figure 6-15 Wrap protection ...........................................................................................................6-17

Figure 6-16 Steering protection.......................................................................................................6-17

Figure 6-17 Wrapping+steering protection .....................................................................................6-19

Figure 6-18 Application of Band exclusive ATM Services.............................................................6-23

Figure 6-19 VP/VC-Ring ................................................................................................................6-24

Figure 7-1 Fibre-shared virtual trail protection.................................................................................8-7

Figure 7-2 MS-shared optical path protection...................................................................................8-8

Figure 7-3 Two lower-speed lines share one higher-speed line ........................................................8-8

Figure 7-4 Sharing protection under the lines with the same speed..................................................8-9

OptiX OSN 1500 Technical Manual - System Description Tables

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary vii

Tables

Table 2-1 Cross-connect capacity......................................................................................................2-1

Table 2-2 Maximum service access capacity ....................................................................................2-3

Table 2-3 The service interfaces........................................................................................................2-4

Table 2-4 The administration and auxiliary interfaces ......................................................................2-5

Table 2-5 Equipment level protection ...............................................................................................2-7

Table 2-6 The maximum number of MSP rings supported by the OptiX OSN 1500........................2-8

Table 3-1 Technical parameters of the ETSI cabinet.........................................................................3-1

Table 3-2 Technical parameters of the 19 inch standard cabinet .......................................................3-1

Table 4-1 Constituent boards and functions of units .........................................................................4-2

Table 4-2 MSP paired slots................................................................................................................4-3

Table 4-3 Board of OptiX OSN 1500 A ............................................................................................4-4

Table 4-4 MSP paired slots of OptiX OSN 1500 B...........................................................................4-7

Table 4-5 Boards of OptiX OSN 1500 B...........................................................................................4-8

Table 4-6 Relation of slots and interface board...............................................................................4-11

Table 6-1 The function list of EFS4/EFS0/EGS2..............................................................................6-2

Table 6-2 The function list of EGT2/EFT8/EFT4 .............................................................................6-4

Table 6-3 EMR0 and EGR2 function list ........................................................................................6-11

Table 6-4 RPR service class ............................................................................................................6-12

Table 6-5 Functions of the ADL4 and ADQ1..................................................................................6-20

Table 6-6 Functions of the IDL4 and IDQ1 ....................................................................................6-21

Table 6-7 Supportable ATM service and traffic types of the OptiX OSN 1500 ..............................6-22

Table 6-8 Classification of ATM protection ....................................................................................6-24

Table 6-9 Functions of the MST4 board..........................................................................................6-25

Table 6-10 Services and rates provided by the MST4.....................................................................6-26

Table 7-1 TPS protection types and supported boards ......................................................................8-2

Table 7-2 TPS protection parameters ................................................................................................8-2

Tables OptiX OSN 1500


viii Huawei Technologies Proprietary T2-040263-20060320-C-1.50

Table 7-3 1+1 hot backup parameters of the cross-connect unit and the timing unit ........................8-3

Table 7-4 Basic networking modes ...................................................................................................8-4

Table 7-5 Linear MSP parameters .....................................................................................................8-5

Table 7-6 MSP ring parameters .........................................................................................................8-6

Table 7-7 SNCP parameters ..............................................................................................................8-7

Table 7-8 Boards and sharing types...................................................................................................8-8

Table 7-9 Protection types of interworking service on rings.............................................................8-9

Table 9-1 Performance of the STM-1 optical interface...................................................................10-1

Table 9-2 Performance of the STM-4 optical interface...................................................................10-2

Table 9-3 Performance of the STM-16 optical interface.................................................................10-2

Table 9-4 Performances of the STM-16 (FEC) optical interface of the OptiX OSN 1500 .............10-3

Table 9-5 Specifications of Ethernet optical interface.....................................................................10-4

Table 9-6 Specifications of ATM optical interface..........................................................................10-4

Table 9-7 Laser level .......................................................................................................................10-5

Table 9-8 Performance of the PDH electrical interface...................................................................10-5

Table 9-9 Parameters of the RS-232 interface.................................................................................10-6

Table 9-10 Parameters of the RS-422 interface...............................................................................10-6

Table 9-11 Parameters of the orderwire interface............................................................................10-7

Table 9-12 Clock features................................................................................................................10-8

Table 9-13 Timing and synchronization performance.....................................................................10-8

Table 9-14 Transmission performance ............................................................................................10-8

Table 9-15 Power supply parameters of the OptiX OSN 1500 .......................................................10-9

Table 9-16 Numbering of TU-12s in a VC-4 (type I)......................................................................10-9

Table 9-17 Numbering of TU-12s in a VC-4 (type II, ITU-T G.707)..............................................10-9

Table 9-18 Power consumption of boards .....................................................................................10-10

Table 9-19 EMC test indices .........................................................................................................10-11

Table 9-20 Environmental indices.................................................................................................10-12

Table 9-21 Climate environment for storage.................................................................................10-13

Table 9-22 Density for mechanical active substances ...................................................................10-14

Table 9-23 Density for chemical active substances.......................................................................10-14

Table 9-24 Requirements for mechanical stress ............................................................................10-14

Table 9-25 Climate environment for transportation ......................................................................10-15

OptiX OSN 1500 Technical Manual - System Description Tables

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary ix




Table 9-29 Requirements for temperature and humidity...............................................................10-17

Table 9-30 Other climate requirements .........................................................................................10-17




OptiX OSN 1500 Technical Manual - System Description 1 Network Application

T2-040263-20060320-C-1.50 Huawei Technologies Proprietary 1-1

1 Network Application This chapter describes application of the OptiX OSN 1500 in the transmission network.

The OptiX OSN 1500 is new generation equipment developed by Huawei Technologies Co., Ltd (hereinafter referred to as Huawei). It integrates the following technologies.

n Synchronous digital hierarchy (SDH) n Wavelength division multiplexing (WDM) n Ethernet n Asynchronous transfer mode (ATM) n Plesiochronous digital hierarchy (PDH) n Storage area network (SAN) n Digital video broadcasting (DVB)

There are two types of OptiX OSN 1500 systems. Figure 1-1 shows OptiX OSN 1500 A and Figure 1-2 shows OptiX OSN 1500 B. Besides the appearance, OptiX OSN 1500 A and OptiX OSN 1500 B also differ in the access capacity.

& Note This manual gives notes for features special to the OptiX OSN 1500 A or the OptiX OSN 1500 B. Features not noted special to which product apply to both products.

Figure 1-1 Appearance of the OptiX OSN 1500 A

1 Network Application OptiX OSN 1500


1-2 Huawei Technologies Proprietary T2-040263-20060320-C-1.50

Figure 1-2 Appearance of the OptiX OSN 1500 B

Figure 1-3 shows the OptiX OSN 1500 is applied in a transmission network. The OptiX OSN 1500 is mainly used at the access layer of the MAN. It can interconnect with the following equipments.

n OptiX OSN 9500 n OptiX OSN 7500 n OptiX OSN 3500 n OptiX OSN 2500

OptiX OSN 9500

Backbone layer

OptiX OSN 3500 OptiX OSN 7500

OptiX OSN 3500OptiX OSN 2500

OptiX OSN 2500OptiX OSN 1500

Convergence layer

Access layer

GSM/CDMA/WCDMA Ethernet SANPSTN ATM. . .

Figure 1-3 Application of the OptiX OSN 1500 in the network

OptiX OSN 1500 Technical Manual - System Description 2 Functions


2 Functions This chapter introduces the functions of the OptiX OSN 1500 A and OptiX OSN 1500 B as follows.

n Capacity n Interface n Built-in WDM Technology n 110 V/220 V Power Supply n Clock n Protection n NM Information Interworking n TCM

2.1 Capacity 2.1.1 Cross-Connect Capacity

Table 2-1 shows the cross-connect capacity of the OptiX OSN 1500.

Table 2-1 Cross-connect capacity

Cross-connect and timing board

Higher order cross-connect capacity

Lower order cross-connect capacity

Access capacity

SSQ1CXL1 20 Gbit/s (128 x 128 VC-4) 5 Gbit/s (32 x 32 VC-4) 15 Gbit/s (96 x 96 VC-4)






2 Functions OptiX OSN 1500



2.1.2 Access Capacity of Slots Figure 2-1 illustrates the access capacity of each slot in the OptiX OSN 1500 A and Figure 2-2 illustrates that of slots in the OptiX OSN 1500 B.

Slot 12 and slot 13 can be divided into four half-slots in OptiX OSN 1500 A.

n Slot 12 can be divided into two half-slots: slot 2 and slot 12. n Slot 13 can be divided into two half-slots: slot 3 and slot 13. n The access capacity of the original slot 12 or 13 is 2.5 Gbit/s. n The access capacity of each of the four half-slots is 1.25 Gbit/s.

Slot 11, slot 12 and slot 13 can be divided into six half-slots in OptiX OSN 1500 B.

n Slot 11 can be divided into two half-slots: slot 1 and slot 11. n Slot 12 can be divided into two half-slots: slot 2 and slot 12. n Slot 13 can be divided into two half-slots: slot 3 and slot 13. n The access capacity of the original slot 11, slot 12 or slot 13 is 2.5 Gbit/s n The capacity of each of the six half-slots is 1.25 Gbit/s

XCS A XCS B

Slot20

Slot 1 Slot 11 Slot 6

Slot 2/12 Slot 7

Slot 3/13 Slot 8

Slot 4 Slot 9

Slot 5 Slot 102.5Gbit/s

2.5Gbit/s

2.5Gbit/s

2.5Gbit/s

1.25Gbit/s

1.25Gbit/s

1.25Gbit/s

1.25Gbit/s

PIU PIU

FAN

AUX

Figure 2-1 Access capacity of slots in OptiX OSN 1500 A



Slot 14 Slot 18 PIU

Slot 15

Slot 16

Slot 17

Slot 20

FAN

Slot 1/11

Slot 2/12

Slot 3/13

Slot 4

Slot 19 PIU

Slot 6

Slot 7

Slot 8

Slot 9

Slot 10 AUX Slot 5

2.5Gbit/s

2.5Gbit/s

2.5Gbit/s

2.5Gbit/s

2.5Gbit/s

622Mbit/s

622Mbit/s

622Mbit/s

622Mbit/s

Figure 2-2 Access capacity of slots in OptiX OSN 1500 B

2.1.3 Service Access Capability The OptiX OSN 1500 provides different service access capacities depending on the type and number of boards. Table 2-2 lists the service access capacities of OptiX OSN 1500 A and OptiX OSN 1500 B.

Table 2-2 Maximum service access capacity

Maximum access capacity Service type

OSN 1500 A OSN 1500 B

STM-16 standard or concatenated service 4 5

STM-4 standard or concatenated service 18 18

STM-1 standard service 42 54

STM-1 (electrical) service 4 18

E3/T3 service 6 15

E1 service 64 190

Fast Ethernet (FE) service 32 56

Gigabit Ethernet (GE) service 4 6

STM-1 ATM service 8 12

STM-4 ATM service 2 3

Enterprise systems connection (ESCON) 12 12

Fibre channel (FC50) 12 12

Fibre connection (FICON)/FC100 6 6

FC200 3 3




Maximum access capacity Service type

OSN 1500 A OSN 1500 B

Digital video broadcast asynchronous serial interface (DVB-ASI)

12 12

2.2 Interface 2.2.1 Service Interface

The service interfaces of the OptiX OSN 1500 are shown in Table 2-3.

Table 2-3 The service interfaces

Interface Description

SDH service interface 75 ohm STM-1 electrical interface with SMB connector STM-1 optical interfaces: I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 STM-4 optical interfaces: I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 STM-16 optical interfaces: I-16, S-16.1, L-16.1, L-16.2, L-16.2Je, V-16.2Je, U-16.2Je(CXL16 can not provide L-16.2Je, V-16.2Je, U-16.2Je interface) STM-16 optical interfaces (out-of-band FEC): Ue-16.2c, Ue-16.2d, Ue-16.2f

PDH service interface E1, T1, E3, T3 and E4 electrical interfaces

Ethernet service interface

10/100Base-TX, 100Base-FX, 1000Base-SX, 1000Base-LX, 1000Base-ZX, 1000Base-TX

ATM service interface STM-1 optical interface: I-1, S-1.1, L-1.1, L-1.2, , Ve-1.1 STM-4 optical interface: S-4.1, L-4.1, L-4.2 Ve-4.2 STM-1 optical interface: support IMA STM-4 optical interface: support IMA

Storage area network (SAN) service interface

FC50, FC100/FICON, FC200, ESCON service optical interface

Video service interface DVB-ASI service optical interface

& Note Ue-16.2c, Ue-16.2d, Ue-16.2f, Le-64.2, Ls-16.2, L-16.2Je, V-16.2Je, U-16.2Je, Ve-1.2, Ve-4.2 are technical specifications defined by Huawei.



2.2.2 Administration and Auxiliary Interface The administration and auxiliary interfaces of the OptiX OSN 1500 are shown in Table 2-4.

Table 2-4 The administration and auxiliary interfaces

Interface Description

Clock interface two 75 ohm or 120 ohm external clock interfaces (2048 kbit/s or 2048 kHz)

Alarm interface Three inputs and one output Boolean value interface

Administration interface One RS-232 remote maintenance interface (OAM) Four broadcast data interfaces (Serial 14) One Ethernet network management (NM) interface (ETH) One administration serial interface (F&f)

Orderwire interface One orderwire phone interface (PHONE)

2.3 Built-in WDM Technology The OptiX OSN 1500 provides dual optical add/drop multiplex board MR2A/MR2B/MR2C and arbitrary rate wavelength conversion board LWX to realize built-in WDM technology. Below are their characteristics.

n The MR2A/MR2B/MR2C can add or drop any two adjacent standard wavelengths (with spacing being 100 GHz) in compliance with ITU-T G.692 (DWDM). The operating wavelength range is 1535.82 nm1560.61 nm.

n The MR2A/MR2B/MR2C can be used as an OTM to add/drop two wavelengths and concatenation of two MR2A/MR2Cs can function as an OTM to add/drop four wavelengths.

n The MR2A/MR2B/MR2C can work with the LWX to function as an OADM to add/drop two wavelengths.

n The LWX supports the conversion between client signalling wavelength and ITU-T G.692 (DWDM) compliant standard wavelength and supports transparent transmission of signals.

n Provide 3R function to added/dropped client signals (10 Mbit/s2.7 Gbit/s), implement clock recovery and monitor the transmission rate.

n Provide two types of LWX board, one is single-fed single receiving and the other is dual-fed selective receiving.

n The dual-fed selective receiving LWX board supports intra-board protection with protection switching time less than 50ms.

n The single-fed single receiving LWX board supports 1+1 inter-board protection with protection switching time less than 50ms.




2.4 110 V/220 V Power Supply The OptiX OSN 1500 supports the 110 V/220 V power supply through uninterrupted power module (UPM). The UPM is used to convert 110 V/220 V AC into 48 V DC, to provide power supply for the OptiX OSN 1500. A UPM consists of power boxes and storage batteries. The output power of each UPM is 2 x 270 W.

The power box measures 438 mm (W) x 240 mm (D) x 44 mm (H). The OptiX OSN 1500 needs two power boxes. The storage battery of the OptiX OSN 1500 consists of four 12 V-40 Ah storage batteries. The dimensions of each battery are 197 mm x 165 mm x 170 mm. If the AC fails, the storage battery can sustain four hours.

2.5 Clock The OptiX OSN 1500 supports clock functions below.

n Supports SSM (Synchronization Status Message) protocol. n Supports tributary retiming. n Support two 75 ohm external clock interfaces (2048 kbit/s or 2048 kHz). n Support two 120 ohm external clock interfaces (2048 kbit/s or 2048 kHz). n When tracing tributary clock sources, the network element can only tracing

the first port (corresponding to the first physical port) or the second port (corresponding to the ninth physical port) on the T2000 of PQ1, PQM, R1PL1 or R1PD1.

n When tracing tributary clock sources, the network element can only tracing the first port (corresponding to the first physical port ) or the second port (corresponding to the fourth physical port ) on the T2000 of PD3

n When tracing tributary clock sources, the network element can only tracing the first port (corresponding to the first physical port) on the T2000 of PL3.



2.6 Protection 2.6.1 Equipment Level Protection

Table 2-5 shows the equipment level protection provided by the OptiX OSN 1500.

Table 2-5 Equipment level protection

Protection scheme Items protected

OptiX OSN 1500 A OptiX OSN 1500 B

E1 processing board 1:1 tributary protection switching (TPS)

1:N (N2) TPS

E3/T3 processing board - 1:1 TPS

E4/STM-1 processing board - 1:1 TPS

Ethernet processing board - 1:1 TPS

Cross-connect and timing board

1+1 hot backup protection 1+1 hot backup protection

SCC board 1+1 hot backup protection 1+1 hot backup protection

48 V power interface board 1+1 hot backup protection 1+1 hot backup protection

+3.3 V board power supply 1:N centralized backup protection

1:N centralized backup protection

2.6.2 Network Level Protection The OptiX OSN 1500 Multi Add/Drop Multiplexer (MADM) system is capable of processing up to 40 Embedded Control Channels (ECC)

The OptiX OSN 1500 supports the following protection.

n Four-fibre multiplex section protection (MSP) ring n Two-fibre MSP ring n Linear MSP n Fibre-shared virtual trail protection n Sub-network connection protection (SNCP)

Table 2-6 shows the maximum number of MSP rings supported by the OptiX OSN 1500.




Table 2-6 The maximum number of MSP rings supported by the OptiX OSN 1500

Protection scheme Max. number of MSP rings supported

STM-16 four-fiber MSP ring 1

STM-16 two-fiber MSP ring 2

STM-4 four-fiber MSP ring 4

STM-4 two-fiber MSP ring 9

2.6.3 Adjustable MS Bandwidth "MS bandwidth" refers to the number of VC4s on an MSP ring or the number of VC4s on a linear MSP chain.

The OptiX OSN 1500 supports adjustable MS bandwidth without interrupting services. For an STM-16 two-fibre bidirectional MSP ring, its MS bandwidth can be adjusted between one and eight VC4s. For an STM-16 four-fibre bidirectional MSP ring, its MS bandwidth can be adjusted between one and sixteen VC4s.

2.6.4 Upgrading MS Bandwidth The OptiX OSN 1500 supports upgrading MS bandwidth by replacing it with the board of higher bit rate without interrupting services. For example, upgrading the STM-4 two-fibre bidirectional MSP ring to the STM-16 two-fibre bidirectional MSP ring.

2.6.5 Squelching Function in Multiplex Section The OptiX OSN 1500 supports the function of squelching misconnected VC-4 traffic.



2.7 NM Information Interworking 2.7.1 Interworking at Physical Layer

NM Information Transparently Transmitted by a Third Party Equipment

The DCC consists of two parts:

n D1D3 bytes, forming a 192 kbit/s channel. n D4D12 bytes, forming a 576 kbit/s channel.

Currently, only the D1D3 bytes are used. The D4D12 bytes are reserved for higher management requirements.

When there is a third party equipment between the OptiX OSN 1500 systems, the bytes D4D12 will be used by the third party equipment to transmit the NM information, as shown in Figure 2-3.

Third partyequipment


D1-D3 D1-D3

Transparenttransmission

Figure 2-3 NM information transparently transmitted by third party equipment

The NM Information of the Third Party Equipment is Transparently Transmitted

The NM information of the third party equipment can be transmitted by bytes D4D12 of the OptiX OSN 1500, as shown in Figure 2-4.






D1-D3 D1-D3Transparenttransmission

Figure 2-4 The NM information of the third party equipment is transparently transmitted

2.7.2 Interworking at Network Layer

IP Over DCC

The scheme of IP over DCC uses the network layer protocol for NM information transmission.

IP over DCC has two networking topologies as shown in Figure 2-5 and Figure 2-6.



IP over DCC

Figure 2-5 The NM information transparently transmitted by the third party equipment





IP over DCC



Figure 2-6 The NM information of the third party equipment is transparently transmitted

OSI over DCC(TP4)

OSI over DCC adopts standard OSI protocols (also called TP4) to transmit NM information at network layer.

For OSI over DCC, there are two networking modes.

n One is the NM information of the OptiX OSN 1500 is transparently transmitted by the third party equipment through OSI over DCC, as shown in Figure 2-7.

n The other is the NM information of the third party equipment is transparently transmitted by the OptiX OSN 1500, as shown in Figure 2-8.



OSI Over DCC

OSI protocolstack

OSI protoclstack

OSI protocolstack

Figure 2-7 Transparent transmission of NM information by the third party equipment (OSI)






OSI Over DCC



OSI protocolstack

OSI protocolstack

OSI protocolstack

Figure 2-8 Transparent transmission of NM information of third party equipment (OSI)

2.8 TCM Tandem Connection Monitor (TCM) is a method monitoring bit errors. If a VC-4 passes through several networks, the bit errors of each section can be monitored through TCM.

The N2SL1, N2SLQ1, N2SL4, N2SLD4, N2SLQ4 and N2SL16 boards support TCM at higher level.

OptiX OSN 1500 Technical Manual - System Description 3 Hardware


3 Hardware This chapter describes the hardware structure of the OptiX OSN 1500, including the appearance and parameters of the cabinet, and the subrack structure. It covers:

n Cabinet n Subrack

3.1 Cabinet The OptiX OSN 1500 can be installed in the ETSI cabinet or a 19 inch standard cabinet. It can also be installed on the desk or on the wall. Table 3-1 shows the technical parameters of the ETSI cabinet. Figure 3-1 shows how the ETSI cabinet.

Table 3-1 Technical parameters of the ETSI cabinet

Size (mm) Weight (kg)

600 (W) x 300 (D) x 2000 (H) 55

600 (W) x 600 (D) x 2000 (H) 79

600 (W) x 300 (D) x 2200 (H) 60

600 (W) x 600 (D) x 2200 (H) 84

600 (W) x 300 (D) x 2600 (H) 70

600 (W) x 600 (D) x 2600 (H) 94

Table 3-2 Technical parameters of the 19 inch standard cabinet

Size (mm) Weight (kg)

600 (W) x 600 (D) x 2000 (H) 90

600 (W) x 600 (D) x 2200 (H) 110

3 Hardware OptiX OSN 1500



3.2 Subrack The OptiX OSN 1500 A measures 131 mm (H) x 444 mm (W) x 262 mm (D), as shown in Figure 3-1. The OptiX OSN 1500 B measures 221 mm (H) x 444 mm (W) x 262 mm (D), as shown in Figure 3-2.

1

2

4

5

6

3

1. Fan area 2. Process board area 3. PIU area 4. Process board area 5. Cabling guide 6. Ear bracket

Figure 3-1 OptiX OSN 1500 A subrack

3

4

5

6

7

1

2

1. Interface board area 2. PIU area 3. Fan area 4. Process board area 5. Process board area 6. Cabling guide 7. Ear bracket

Figure 3-2 OptiX OSN 1500 B subrack

OptiX OSN 1500 Technical Manual - System Description 4 Boards


4 Boards This chapter introduces the boards of the OptiX OSN 1500, as well as their slots. It comprises two sections:

n Type n Slot

4.1 Type The OptiX OSN 1500 consists of SDH interface unit, PDH/Ethernet/ATM interface unit, SDH cross-connect matrix unit, synchronous timing unit, SCC unit, overhead processing unit and auxiliary interface unit. Figure 4-1 shows the system architecture of the OptiX OSN 1500, while Table 4-1 shows its boards and functions of each unit.

PDH

/Ethernet/ATM

Interface Unit

STM-N Optical Signal

PDH SignalEthernet Signal

ATM Signal

Cross C

onnect M

atrix

SD

H Interface U

nitO

verhead Processing

Unit

Synchronous tim

ing Unit

Auxiliary

Interface Unit

SCC

Unit

Figure 4-1 System architecture of the OptiX OSN 1500

4 Boards OptiX OSN 1500



Table 4-1 Constituent boards and functions of units

Unit OptiX OSN 1500 A OptiX OSN 1500 B

Processing board SF16, SL16, SLQ4, SLD4, SL4, SLQ1, SL1, SEP1, SLT1, R1SL4, R1SLD4, R1SLQ1, R1SL1

SF16, SL16, SLQ4, SLD4, SL4, SLQ1, SL1, SEP1, SLT1, R1SL4, R1SLD4, R1SLQ1, R1SL1

Interface board - EU04, EU08, OU08

SDH interface unit

Protection switching board

- TSB8, TSB4

Processing board R1PD1, R1PL1, PL3A R1PD1, SPQ4, PD3, PL3, PL3A, PQ1, PQM, R1PL1

PDH interface unit

Interface board L12S, L75S MU04, D34S, D75S, D12S, D12B

Processing board EGS2, EGT2, EFS4, EFT4, EFT8

EGS2, EGT2, EFS0, EFS4, EFT4, EFT8

Ethernet interface unit

Interface board - ETF8, EFF8, ETS8

Processing board EMR0, EGR2 EMR0 ,EGR2 Resilient packet ring unit

Interface board - ETF8 ,EFF8

ATM interface unit ADL4, ADQ1, IDL4, IDQ1 ADL4, ADQ1, IDL4, IDQ1

SAN interface unit MST4 MST4

MR2A, MR2B MR2A, MR2B, MR2C WDM unit

LWX LWX

Line, cross-connect, timing and SCC unit CXL1, CXL4, CXL16 CXL1, CXL4, CXL16

Orderwire unit EOW EOW

PIU PIU Power input unit

UPM(Uninterrupted Power Model)

UPM

System auxiliary process unit AUX AUX

Fan unit FAN FAN

COA COA

BA2 BA2

Optical booster amplifier board

BPA BPA



4.2 Slot 4.2.1 OptiX OSN 1500 A

Figure 4-2 illustrates the slot distribution of the OptiX OSN 1500 A. Table 4-3 gives the board. Slot 12 can be divided into slot 2 and 12. Slot 13 can be divided into slot 3 and slot 13. Table 4-2 lists the MSP paired slots.

Table 4-2 MSP paired slots

Before division of the slots After division of the slots

4, 5 4, 5

6, 9 6, 9

7, 8 7, 8

2, 12

Paired slots

12, 13

3, 13

XCS A XCS B

Slot20




Slot 4 Slot 9

Slot 5 Slot 10

Figure 4-2 Slot distribution of OptiX OSN 1500 A




Table 4-3 Board of OptiX OSN 1500 A

Name Description Slot Interface Connector

SL16 1 x STM-16 optical board

12, 13 I-16, S-16.1, L-16.1, L-16.2, L-16.2Je, V-16.2Je, U-16.2Je

LC

SF16 1 x STM-16 optical board

12, 13 Support fixed wavelength output and support Ue-16.2c, Ue-16.2d, Ue-16.2f

LC

SLD4 2 x STM-4 optical board

12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

SLQ4 4 x STM-4 optical board

12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC


12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

SLQ1 4 x STM-1 optical board

12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

SLT1 12 x STM-1 optical board

12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC


12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

SEP1 2 x STM-1 electrical board

12, 13 75 ohm STM-1 SMB

R1SL4 1 x STM-4 optical board

2, 3, 6, 7, 8, 9, 12, 13

I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

R1SLD4 2 x STM-4 optical board

2, 3, 6, 7, 8, 9, 12, 13

I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

R1SL1 1 x STM-1 optical board

2, 3, 6, 7, 8, 9, 12, 13

I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

R1SLQ1 4 x STM-1 optical board

2, 3, 6, 7, 8, 9, 12, 13

I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

BA2 2 x Optical Amplifier 12, 13 - LC

BPA 1 x preamplifier 12, 13 - LC

LWX Arbitrary bit rate wavelength conversion unit

12, 13 - LC

R1PD1 32 x E1 processing board

2, 12 Used with L75S or L12S(75 ohm E1 interface or 120 ohm E1 interface)

2mmHM

61COA Case shaped EDFA optical amplifier unit

External - SC




62COA Case shaped raman amplifier unit

External - SC, E2000

N1COA Case shaped preamplifier unit

External - SC

R1PL1 16 x E1 processing board

6, 7, 8, 9 75 ohm E1 interface or120 ohm E interface

2mmHM

PL3A 3 x E3/T3 processing board

12, 13 75 ohm E3/T3 electrical interface SMB

L75S 16 x E1 interface board

6, 7 75 ohm E1 interface 2mmHM

L12S 16 x E1 interface board

6, 7 120 ohm E1 interface 2mmHM

CXL 80, 81 - -

SCC 82, 83 - -

CXL1 (Note)

SL1 4, 5 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

CXL 80, 81 - -

SCC 82, 83 - -

CXL4 (Note)

SL4 4, 5 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

CXL 80, 81 - -

SCC 82, 83 - -

CXL16 (Note)

SL16 4, 5 I-16, S-16.1, L-16.1, L-16.2, L-16.2Je

LC

EGR2 2 x 1000 Mbit/s optical-port RPR processing board

12, 13 1000BASE-SX/LX/ZX LC

EGS2 2-port Gigabit Ethernet switching processing board


EFS4 4-port 10/100 Mbit/s fast Ethernet processing board with LAN switch

12, 13 10/100BASE-TX RJ-45

EGT2 2-port Gigabit Ethernet transparent transmission board






EFT4 4-port 10/100 Mbit/s Ethernet transparent transmission board

2, 3, 6, 7, 8, 9, 12, 13

10/100BASE-TX RJ-45


12, 13 10/100BASE-TX RJ-45

EMR0 4 x 10/100 Mbit/s electrical-port and 1 x 1000 Mbit/s optical-port RPR processing board

12, 13 10/100BASE-TX, 100BASE-FX, 1000BASE-SX/LX/ZX

RJ-45, LC

ADL4 1 x STM-4 ATM processing board

12, 13 S-4.1, L-4.1, L-4.2, Ve-4.1 LC

ADQ1 4 x STM-1 ATM processing board

12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

IDL4 1 x STM-4 IMA processing board

12, 13 S-4.1, L-4.1, L-4.2, Ve-4.1 LC

IDQ1 4 x STM-1 IMA processing board

12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

MST4 4 x multi-service (SAN, Video) transparent transmission board

12, 13 - LC

MR2A 2-channel optical add/drop multiplexing board

12, 13 - LC

MR2B 2-channel optical add/drop multiplexing board

2, 3, 6, 7, 8, 9, 12, 13

- LC

PIU Power board 1, 11 - -

EOW Orderwire board 9 - -

FAN Fan board 20 - - Note: The CXL is a line, system control, cross-connect and timing board of the OptiX OSN 1500. It seats in slot4 and slot 5. On the T2000, it is displayed as three board types: CXL, SCC and SL1/4/16, respectively occupying the logic slots 8081, 8283 and 45.

& Note One OptiX OSN 1500 A subrack can configure one 61COA, N1COA or 62COA.



4.2.2 OptiX OSN 1500 B Figure 4-3 and Figure 4-4 illustrate the slot distribution of the OptiX OSN 1500 B. Table 4-5 gives the board-slot relation. Slot 11 can be divided into slot 1 and 11. Slot 12 can be divided into slot 2 and 12. Slot 13 can be divided into slot 3 and slot 13. Table 4-4 lists the MSP paired slots.

Table 4-4 MSP paired slots of OptiX OSN 1500 B

Before division of the slots After division of the slots

4, 5 4, 5

6, 9 6, 9

7, 8 7, 8

1, 11

2, 12

Paired slots

12, 13

3, 13

Figure 4-3 and Figure 4-4 shows the slot layout of the OptiX OSN 1500 B.

Slot 20

FAN Slot 4

Slot 5

Slot 14

Slot 15

Slot 16

Slot 17

Slot 6

Slot 7

Slot 8

Slot 9

Slot 10 AUX

Slot 18

Slot 19

PIU

PIU

Slot 11

Slot 12

Slot 13

Figure 4-3 Slot layout before division of the slots

Slot 20

FAN

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 11

Slot 12

Slot 13

Slot 14

Slot 15

Slot 16

Slot 17

Slot 6

Slot 7

Slot 8

Slot 9

Slot 10 AUX

Slot 18

Slot 19

PIU

PIU

Figure 4-4 Slot layout after division of the slots




Table 4-5 Boards of OptiX OSN 1500 B


SL16 1 x STM-16 optical board 11, 12, 13 I-16, S-16.1, L-16.1, L-16.2, L-16.2Je, V-16.2Je, U-16.2Je

LC

SF16 1 x STM-16 optical board 11, 12, 13 Support fixed wavelength output and support Ue-16.2c, Ue-16.2d, Ue-16.2f

LC

SLQ4 4 x STM-4 optical board 11, 12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

SLD4 2 x STM-4 optical board 11, 12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

SL4 1 x STM-4 optical board 11, 12, 13 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

SLQ1 4 x STM-1 optical board 11, 12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

SLT1 12 x STM-1 optical board 11, 12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

SL1 1 x STM-1 optical board 11, 12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

SEP1 (Note1)

2x STM-1 processing board 11, 12, 13 75 ohm STM-1 interface SMB

SEP (Note1)

8x STM-1 processing board 12, 13 I-1, S-1.1 optical interface and 75 ohm STM-1 electrical interface

LC, SMB

R1SL4 1 x STM-4 optical board 1, 2, 3, 6, 7, 8, 9, 11, 12, 13

I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

R1SLD4

2 x STM-4 optical board 1, 2, 3, 11, 12, 13

I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

R1SL1 1 x STM-1 optical board 1, 2, 3, 6, 7, 8, 9, 11, 12, 13

I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

R1SLQ1

4 x STM-1 optical board 1, 2, 3, 6, 7, 8, 9, 11, 12, 13

I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

BA2 Optical amplifier 11, 12, 13 - LC

BPA Preamplifier 11, 12, 13 - LC

61COA Case shaped EDFA optical amplifier unit

External - SC

62COA Case shaped raman amplifier unit

External - SC, E2000

N1COA

Case shaped preamplifier unit External - SC




CXL 80, 81 - -

SCC 82, 83 - -

CXL1 (Note2)

SL1 4, 5 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

CXL 80, 81 - -

SCC 82, 83 - -

CXL4 (Note2)

SL4 4, 5 I-4, S-4.1, L-4.1, L-4.2, Ve-4.2 LC

CXL 80, 81 - -

SCC 82, 83 - -

CXL16(Note2)

SL16 4, 5 I-16, S-16.1, L-16.1, L-16.2, L-16.2Je

LC

SPQ4 4 x E4/STM-1 processing board 12, 13 75 ohm E4/STM-1 electrical interface

SMB

PD3 6 x E3/T3 processing board 12, 13 75 ohm E3/T3 electrical interface

SMB

PL3 3 x E3/T3 processing board 12, 13 75 ohm E3/T3 electrical interface

SMB

PL3A 3 x E3/T3 processing board 11, 12, 13 75 ohm E3/T3 electrical interface with on interface board

SMB

PQ1 63 x E1 processing board 11, 12, 13 120 ohm and 75 ohm E1 interface

DB44

PQM 63 x T1/E1 processing board 11, 12, 13 120 ohm E1 interface and 100 ohm T1 interface

DB44

R1PD1 32 x E1 processing board 1, 2, 3, 6, 7, 8, 11, 12, 13

75 ohm E1 interface or 120 ohm E1 interface

DB44

R1PL1 16 x E1 processing board 6, 7, 8, 9 75 ohm E1 interface or 120 ohm E1 interface

2mmHM

EGR2 2 x 1000 Mbit/s optical-port RPR processing board

11, 12, 13 1000BASE-SX/LX/ZX -

EGS2 2-port Gigabit Ethernet switching processing board

11, 12, 13 1000BASE-SX/LX/ZX LC

EFS0 10/100 Mbit/s fast Ethernet processing board with LAN switch

12, 13 10/100BASE-TX, 100BASE-FX

RJ-45, LC





EFS4 4-port 10/100 Mbit/s fast Ethernet processing board with LAN switch

11, 12, 13 10/100BASE-TX RJ-45

EGT2 2-port Gigabit Ethernet transparent transmission board

11, 12, 13 1000BASE-SX/LX/ZX LC


1, 2, 3, 6, 7, 8, 9, 11, 12, 13

10/100BASE-TX RJ-45

8-port 10/100 Mbit/s Ethernet transparent transmission board (no interface board)

11, 12, 13 (1.25 Gbit/s)

10/100BASE-TX RJ-45 EFT8

16-port 10/100 Mbit/s Ethernet transparent transmission board (interface board)

12, 13 (1.25 Gbit/s)

10/100BASE-TX, 100Base-FX,

RJ-45, LC

12 x 10/100 Mbit/s electrical-port and 1 x 1000 Mbit/s optical-port RPR processing board

12, 13 10/100BASE-TX, 100BASE-FX, 1000BASE-SX/LX/ZX

RJ-45, LC EMR0

4 x 10/100 Mbit/s electrical-port and 1 x 1000 Mbit/s optical-port RPR processing board

11, 12, 13 10/100BASE-TX, 100BASE-FX, 1000BASE-SX/LX/ZX

RJ-45, LC

ADL4 1 x STM-4 ATM processing board

11, 12, 13 S-4.1, L-4.1, L-4.2, Ve-4.1 LC

ADQ1 4 x STM-1 ATM processing board

11, 12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

IDL4 1 x STM-4 IMA processing board

11, 12, 13 S-4.1, L-4.1, L-4.2, Ve-4.1 LC

IDQ1 4 x STM-1 IMA processing board

11, 12, 13 I-1, S-1.1, L-1.1, L-1.2, Ve-1.2 LC

MST4 4 x multi-service (SAN, Video) transparent transmission board

11, 12. 13 - LC

MR2A 2-channel optical add/drop multiplexing board

11, 12, 13 - LC

MR2B 2-channel optical add/drop multiplexing board

1, 2, 3, 6, 7, 8, 9, 11, 12, 13

- LC

MR2C 2-channel optical add/drop multiplexing board

14, 15, 16, 17

- LC




LWX Arbitrary bit rate wavelength conversion unit

11, 12, 13 - LC

Note1: The N1SEP1 and N1SEP are the boards of the same type. They used with the interface board when they are configured as "N1SEP" on the T2000, or the signal is directly led out from the front panel when they are configured as "N1SEP1". Note2: The CXL is a line, system control, cross-connect and timing board of the OptiX OSN 1500. It seats in slot4 and slot 5. On the T2000, it is displayed as three board types: CXL, SCC and SL1/4/16, respectively occupying the logic slots 8081, 8283 and 45.

& Note One OptiX OSN 1500 B subrack can configure one 61COA, N1COA or 62COA.

Table 4-6 Relation of slots and interface board

Board Full name Slots available Interface type Used with

MU04 4 x E4/STM-1 mixed electrical interface board

Slot 14, 16 SMB SPQ4

EU04 4 x STM-1 electrical interface board

14, 16 SMB Used together with SEP

EU08 8 x STM-1 electrical interface board

14, 16 SMB Used together with SEP

OU08 8 x STM-1 optical interface board

14, 16 SC/LC Used together with SEP

D34S 6 x E3/T3 PDH interface switching board

Slot 14, 16 SMB PD3

C34S 3x E3/T3 PDH interface switching board

Slot 14, 16 SMB PL3

D75S 32 x 75 ohm E1/T1 PDH interface switching board

Slot 1417 DB44 PQ1

D12S 32 x 120 ohm E1/T1 PDH interface switching board

Slot 1417 DB44 PQ1 or PQM

D12B (Note)

32 x E1/T1 PDH interfaces board

Slot 1417 DB44 PQ1 or PQM

TSB8 8 x electrical interface switching & bridging board

Slot 14 None PL3/PD3/SPQ4 and D34S/MU04

TSB4 4 x electrical interface switching & bridging board

Slot 14 None PL3 and C34S

ETF8 8 x 10/100 Mbit/s Ethernet twisted pair interface board

Slot 14, 16 RJ-45 EFS0 and EMR0




Board Full name Slots available Interface type Used with

EFF8 8 x 100 Mbit/s Ethernet optical interface board

Slot 14, 16 LC EFS0 and EMR0

Note: D12B do not support tributary protection switch.

OptiX OSN 1500 Technical Manual - System Description 5 Software Structure


5 Software Structure 5.1 Overview

The software system of the OptiX OSN 1500 is of modular structure, as shown in Figure 5-1. The software system include three modules: board software, NE software and NM software, respectively run on various boards, SCC board and NM computer for corresponding functions.

NM software

Board Software

NE Software

Figure 5-1 Software system structure of the OptiX OSN 1500

5.2 NE Software The NE software is used to manage, monitor and control the operation of the boards of an NE. Through the NE software, the communication unit between the NM system and boards, the NM system can control and manage NEs. According to ITU-T Recommendation M.3010, the NE software belongs to the unit management layer in the telecommunication management network, implementing the functions including NE functions, some of coordination functions and operating system functions of the network unit layer. The data communication function implements the communication between the NE and other equipment (including coordinated equipment, NM system, and other NEs).

5 Software Structure OptiX OSN 1500



n Real-time multi-task operating system

The function of the real-time multi-task operating system of the OptiX OSN 1500 NE software is to manage public resources and provide support for the executive program. It can provide an executive environment unrelated to processor hardware by segregating the application from the processor.

n Network side (NS) module

The NS module is between the communication module and equipment management module. It converts the data format between the user operation side on the application layer and the NE equipment management layer, and provides security control for the NE layer. It can be divided into three sub-modules functionally: Qx interface module, command line interface module and security management module.

n Equipment administration module (AM)

The equipment AM is the kernel of the NE software for implementing NE management. It includes Manager and Agent. Administrator can send network management operation commands and receive events. Agent can respond to the network management operation commands sent by the network administrator, implement operations to the managed object and submit events according to status change of the managed object.

The equipment AM includes configuration management module, performance management module, alarm management module and switching management module.

n Communication module

This module fulfills the message communication function (MCF) of the functional blocks of the transmission network equipment.

Through the hardware interface provided by the SCC board, the communication module transmits the OAM&P information and exchanges management information between the NM system and NEs, and between NEs themselves. It consists of network communication module, serial communication module and ECC communication module.

n Database management module

This module is an organic component of the NE software, composed of database and management system. Database comprises several sub databases, including network database, alarm database, performance database and equipment database. The management system manages and accesses the data in the database.

5.3 Board Software The board software runs on each board, managing, monitoring and controlling the operation of the board. It receives the command issued from the NE software and reports the board status to the NE software through performance and alarm events.

OptiX OSN 1500 Technical Manual - System Description 5 Software Structure


Its specific functions include: alarm management, performance management, configuration management and communication management and so on. It can directly control the functional circuits in corresponding boards and implement ITU-T compliant specific functions of the NE.

The board software can be classified into the following types: line software or tributary software, cross-connect software, clock software and orderwire software.

5.4 NM System The NM system implements a unified management over the optical transmission network, and maintains all ION, SDH, Metro, DWDM NE equipment in the network. In compliance with ITU-T Recommendation, it is a network management system integrating standard management information model and object-oriented management technology. It exchanges information with NE software through the communication module to implement monitoring and management over the network equipment.

The NM software runs on a workstation or PC, managing the equipment and the transmission network. It enables the user to operate, maintain and manage the transmission equipment. The management functions of the NM software include:

n Alarm management: Collect, prompt, filter, browse, acknowledge, check, clear, and statistics in real time; fulfill alarm insertion, alarm correlation analysis and fault diagnosis.

n Performance management: Set performance monitoring; browse, analyze and print performance data; forecast medium-term and long-term performance; and reset performance register.

n Configuration management: Configure and manage interfaces, clocks, services, trails, subnets and time.

n Security management: NM user management, NE user management, NE login management, NE login lockout, NE setting lockout and local craft terminal (LCT) access control of the equipment.

n Maintenance management: Provide loopback, board resetting, automatic laser shutdown (ALS) and optical fiber power detection, and collect equipment data to help the maintenance personnel in troubleshooting.

OptiX OSN 1500 Technical Manual - System Description 6 Data Features


6 Data Features This chapter introduces the data features provided by the OptiX OSN 1500. It covers:

n Ethernet n RPR n ATM n SAN

6.1 Ethernet This section introduces the Ethernet features of the OptiX OSN 1500 in terms of function, application and protection.

6.1.1 Function The OptiX OSN 1500 provides the Ethernet boards EFT4, EFS4, EFS0, EGS2 and EGT2 to meet different Ethernet service requirements. Table 6-1 and Table 6-2 list the basic functions of these boards.

6 Data Features OptiX OSN 1500



Table 6-1 The function list of EFS4/EFS0/EGS2

Function N1EFS4 N1EFS0 N2EFS0 N1EGS2 N2EGS2

Number of ports 4 FE 8 FE 8 FE 2 GE 2 GE

Interface type 10Base-T 100Base-TX

10Base-T, 100Base-TX, 100Base-FX

10Base-T, 100Base-TX, 100Base-FX

1000Base-SX, 1000Base-LX, 1000Base-ZX

1000Base-SX, 1000Base-LX, 1000Base-ZX

Used with interface board

None ETF8, EFF8 N1ETS8 (cooperating with TSB8 to realize 1:1 TPS), ETF8, EFF8

None None

Service frame format

Ethernet II, IEEE 802.3, IEEE 802.1 q/p

JUMBO frame Supported, 9600 bytes

Maximum uplink bandwidth

4 VC-4 4VC-4 8 VC-4 8 VC-4 16VC-4

Mapping mode VC-12, VC-3, VC-12-xv (x63), VC-3-xv (x12)

VC-12, VC-3, VC-12-xv (x63), VC-3-xv (x12)

VC-12, VC-3, VC-12-xv (x63), VC-3-xv (x12)

VC-12, VC-3, VC-12-xv (x63), VC-3-xv (x12)

VC-12, VC-3, VC-12-xv (x63), VC-3-xv (x12)

Number of VCTRUNKs

12 12 24 24 48

Ethernet private line (EPL)

Supported Supported Supported Supported Supported

Ethernet virtual private line (EVPL)


Ethernet private LAN (EPLAN)


Ethernet virtual private LAN (EVPLAN)

Supported Supported Supported Not Supported

Supported

Static MPLS Label

Supports MartiniOE label



Not Supported


Stack VLAN Supported Supported Supported Not Supported

Supported

VLAN IEEE 802.1q/p



Function N1EFS4 N1EFS0 N2EFS0 N1EGS2 N2EGS2

Spanning tree Supported Supported Supported Not Supported

Supported

Multicast (IGMP Snooping)

Supported Supported Supported Not Supported

Supported

Encapsulation Generic framing procedure (GFP-F), compliant with ITU-T G.7041

LCAS (Link Capacity Adjustment Scheme)

Supported, compliant with ITU-T 7042



Not Supported


Port aggregation (in one board)


CAR Based on port or port + VLAN with the granularity of 64 kbit/s

Based on port, port + VLAN, or port + VLAN + Priority with the granularity of 64 kbit/s

Based on port or port + VLAN with the granularity of 64 kbit/s

Based on port, port + VLAN, or port + VLAN + Priority with the granularity of 64 kbit/s

Link state pass through (LPT)


Port aggregation (within the board)

Not supported Not supported Supported Not supported Supported

Flow control Supported, compliant with IEEE802.3X

QoS Traffic classification

N1EFS4, N1EFS0 and N1EGS2 support PORT, PORT+VLAN ID, PORT+VLAN PRI based traffic classification. N2EFS0 and N2EGS2 support PORT, PORT+VLAN ID, PORT+VLAN ID+VLAN PRI based traffic classification.

Test frame Supported Supported Supported Supported Supported

Ethernet performance monitoring


RMON Supported Supported Supported Supported Supported




Table 6-2 The function list of EGT2/EFT8/EFT4

Function EGT2 EFT8 EFT4

Interface 2 GE 8FE 4FE

Service frame format Ethernet II, IEEE 802.3, IEEE 802.1QTAG

Ethernet II, IEEE 802.3, IEEE 802.1QTAG

Ethernet II, IEEE 802.3, IEEE 802.1QTAG

JUMBO frame Supported, 9600 bytes supported supported

Maximum uplink bandwidth 16 VC-4 8 VC-4 4 VC-4

Mapping mode VC-3, VC-4, VC-3-xv(x24), VC-4-xv(x8)

VC-12, VC-3, VC-12-xv(x63), VC-3-xv(x3)

VC-12, VC-3, VC-12-xv(x63), VC-3-xv(x3)

VC TRUNK number 2 8 4

Ethernet private line (EPL) Supported Supported Supported

Ethernet virtual private line (EVPL)

Not supported Not supported Not supported

Ethernet private LAN (EPLAN)


Ethernet virtual private LAN (EVPLAN)


MPLS Not supported Not supported Not supported

VLAN Transparent transmission Transparent transmission

Transparent transmission

Spanning tree Not supported Not supported Not supported

Multicast (IGMP Snooping) Not supported Not supported Not supported

Encapsulation GFP, LAPS, HDLC GFP, LAPS, HDLC GFP, LAPS, HDLC

LCAS Supported, compliant with ITU-T 7042.

Supported Supported

CAR Does not supported ITU-T G.7042 ITU-T G.7042

Link stat pass through (LPT) Not supported Not supported Not supported

Flow control Supported, compliant with IEEE802.3X.

IEEE 802.3X IEEE 802.3X

Test frame Supported Supported Supported

Ethernet performance monitoring

Supported Supported Supported



6.1.2 Application The OptiX OSN 1500 integrates the access of Ethernet services on the SDH transmission platform, so it can transmit both the voice service and data service.

EPL Service

(1) EPL service based on port

EPL implements the point-to-point transparent transmission of Ethernet service. As shown in Figure 6-1, the Ethernet services of different NEs are transmitted to the destination node through their respective VC Trunks. The Ethernet service is provided with a perfect SDH self-healing ring (SHR) protection scheme, and its reliable transmission is thus guaranteed.

SHR

1

3

4

5

Traffic flown

NE 4

NE 1

NE 2

NE 3

2

Figure 6-1 The EPL service based on port

(2) EPL service based on port +VLAN

EVPL services are isolated through VLAN tags during bandwidth sharing. As shown in Figure 6-2, flow classification is performed for the Ethernet service according to the port and VLAN ID to distinguish different VLANs of Company A and B. Up to two priorities can be set according to the flow classification result. For security purpose, the OptiX OSN 1500 isolates services of different users by VLAN. In the figure below, VLAN 1 of Company A shares a VC Trunk with VLAN 11 of Company B, VLAN 2 of Company A shares a VC Trunk with VLAN 12 of Company B, and VLAN 3 of Company A shares a VC Trunk with VLAN 13 of Company B.

All services of Company A are converged to NE1 and output from the FE/GE interface of the NE1, and then are sent to the Lanswitch for further processing.




VLAN 1

VLAN 2

VLAN 13

VLAN 1

VLAN 2VLAN 3

Headquarters ofCompany B

Branch

Branch

Branch

VLAN 12

VLAN 3

VLAN 11 VLAN 12

VLAN 13

Headquartersof Company A

VLAN 11

1 3

2

Traffic flown

SHR

NE 1

NE 2

NE 3

NE 4

Figure 6-2 The EPL service based on port +VLAN

EVPL Service

The OptiX OSN 1500 adopts the Martini modes to construct the multi-protocol label switching (MPLS) Layer 2 VPN and provide EVPL service.

The EVPL service offers point-to-point connection and implements service convergence for users. As shown in Figure 6-3, the system will search the Port + Vlan ID table for the external label (Tunnel) and internal label (VC), and add them to the accessed Ethernet frames. Data transfer in the network is based on the MPLS label, which switched at the label switch path (LSP). Then, the data will be transmitted to the NE4 equipment, which strips the MPLS label and transfers the data to the corresponding port. The OptiX OSN 1500 integrates the function of P equipment and PE equipment.

Corp A

Company B Company B

NE1 NE4NE2 NE3P ort A

P ort B

Port A

Port B

Tunnel Label VC Label DataCompany

60 10 ...A70 20 ...B... ... ......

60 10 Data70 20 Data

61 10 Data71 20 Data

10 Data20 Data

Tunnel labelswitching

Tunnel labelswitching

NE4 strips the MPLS lablesand Transfers the frame tocorresponding ports

L2 MPLS network composedby OptiX OSN Products

Company ACompany A6272

Tunnel VC labeladding/stripping

Tunnel VC labeladding/stripping

Figure 6-3 The EVPL service with MPLS label



EPLAN Service

The OptiX OSN 1500 supports Layer 2 switching of Ethernet data, i.e. the EPLAN service, which can be transferred according to their destination media access control (MAC) addresses.

As shown in Figure 6-4, respective LANs of Company A and B are connected to four NEs. The Ethernet service between the NEs is not of a fixed point-to-point type. For example, a user of Company A connecting to NE3 may want to communicate with users of Company A connecting to other three NEs. That is, the flow direction of services is not definite. The Ethernet Layer 2 switching function provided by the OptiX OSN 1500 can be employed to solve such a problem. For example, an Ethernet MAC address transfer table will be formed in the system when the relevant settings are made to NE3. The system can learn to periodically update the table. Then, the data of Company A and B accessed at NE3 will be transmitted to their destinations over different VC Trunks selected according to their MAC transfer table or over the same VC Trunk.

In this way, the system configuration is significantly simplified and the bandwidth utility is improved. In addition, the corresponding maintenance and management becomes convenient for the operator.

Company A Company B

NE1

Company A

Company B

Company ACompany B

Company A

Company B

MAC Address Destinati o nVC-TrunkMAC 1 NE1 MAC 2 NE4 MAC 3 NE2

NE2

NE3

NE41

23

SHR

n Traffic flow

Figure 6-4 Layer 2 switching of Ethernet service

EVPLAN Service

The OptiX OSN 1500 adopts the Martini MPLS Layer 2 VPN encapsulation format to support the Ethernet virtual private LAN (EVPLAN) service.

EVPLAN service implements the multipoint-to-multipoint connection of user sites. Users regard the EVPLAN network as a big VLAN where the user service can be converged. As shown in Figure 6-5, when the users Ethernet frame (the source address is MAC H, and the destination address is MAC A, B or C) enters the PE equipment, the system will search the Layer 2 transfer table for the internal label




(VC label). Then, the frame is transferred to the corresponding tunnel, where it is attached with the external label (tunnel label). Thus, different LSPs are set up according to different addresses. The MPLS labels are switched at the LSP. And then transferred to the corresponding PE equipment, where the tunnel and VC labels are striped. After that, the Ethernet frame is transferred to the corresponding output port according to the Layer 2 MAC transfer table.

Branch CP

Branch A

Headquarters

Branch B

PE

PE

PE

Address =MAC C

Address =MAC A

Address =MAC B

Address =MAC HSink VC LabelTunnel Label

MAC A 101MAC B 202MAC C 303

Source

MAC H

MAC H

MAC H

LSP

LSP1LSP2LSP3

MPLSCore

LSP1 LSP2

LSP3

P PE

Transferd tocorrespondingport via the Layer2 route table

Figure 6-5 Application of EVPLAN service

6.1.3 Protection The Ethernet service of the OptiX OSN equipment takes the protection of several levels, including:

n Protection of LCAS n STP/RSTP n Protection of optical transmission layer, such as MSP and SNCP

LCAS

LCAS provides an error tolerance mechanism, enhancing the reliability of virtual concatenation. It has the following functions:

n Configure the system capacity, add or reduce the number of VC involved in the virtual concatenation and change the service bandwidth dynamically without damaging the service.

n Protect and recover failed members.

As shown in Figure 6-6, LCAS can add or delete members to increase or decrease the bandwidth dynamically without affecting the service.



I want another 10 Mbandwidth. Member

Member HeadquartersBranch

BranchNew member

MSTP network

MSTP

Headquarters

Member

Member

Figure 6-6 LCAS adjusts bandwidth dynamically

As shown in Figure 6-7, LCAS can protect the Ethernet service. When some members fail, the failed members will be deleted automatically. While other members remain transmitting data normally. When the failed members are available again, they will be recovered automatically, and the data will be loaded to them again.

Member


Failed member

Member


Delete failed member

MSTP network

MSTP Figure 6-7 LCAS protects the virtual concatenation group

STP/RSTP

The Ethernet boards support spanning tree protocol (STP) and rapid spanning tree protocol (RSTP). The RSTP protects the link by restructuring the topology. When




the RSTP is started, it can modify the logic network topology to avoid broadcast storms.

MSP and SNCP

Ethernet service is protected by MSP or SNCP in optical transmission layer.

6.2 RPR Features This section introduces the RPR features of the OptiX OSN 1500 in terms of function, application and protection.

6.2.1 Function The EMR0 and EGR2 boards of the OptiX OSN 1500 supports resilient packet ring (RPR) features defined by IEEE 802.17. RPR employs a dual-ring structure utilizing a pair of unidirectional counter-rotating rings, as shown in Figure 6-8. Both the outer ring and the inner ring bear data packets and control packets, featuring high bandwidth utilization. The control packets on the inner ring carry control information for the data packets on the outer ring, and the control packets on the outer ring carry control information for the data packets on the inner ring. The two rings act as backup and protection for each other.

Node 1

Outer ring control

Node 2

Node 3

Node 42.5 Gbit/s RPR

Outer ring data

Inner ring data

Inner ring control

Figure 6-8 RPR ring

EMR0 and EGR2 Function List

Table 6-3 lists the basic functions of the EMR 0 and EGR2.



Table 6-3 EMR0 and EGR2 function list

Function N1EMR0 N2EMR0 N2EGR2

Port number 1 GE+12 FE 1 GE+12 FE 2 GE

Service frame format Ethernet II, IEEE 802.3, IEEE 802.1QTAG

JUMBO frame Supported, 9600 bytes

Maximum uplink bandwidth

16 VC-4 (2.5 Gbit/s)

Mapping granule VC-3, VC-3-2v, VC-4, VC-4-xv (X8)

Et

Date post:	26-Nov-2015
Category:	Documents
Upload:	natasa-mihic-boskovic
View:	28 times
Download:	0 times

01-OSN1500 System Description

Documents