Huawei OSN 8800 OTN Tributary Board TN55TSC

Function and Feature

Description

Basic function

TSC converts signals as follows:

1. TN54TSC
   1. 1 x 100GE(Bit Transparent Mapping)<->1 x ODU4
   2. 1 x OTU4<->1 x ODU4
2. TN55TSC
   1. 1 x 100GE(Bit Transparent Mapping)<->1 x ODU4
   2. 1 x 100GE(MAC Transparent Mapping)<->1 x ODU4/ODUflex
   3. 1 x OTU4<->1 x ODU4

Client-side service type

100GE: Ethernet service at a rate of 103.125 Gbit/s

OTU4: OTN service at a rate of 111.81 Gbit/s

Cross-connect capabilities

Supports the cross-connection of one channel of ODU4 signals between the TSC and the cross-connect board.

OTN function

1. Supports the OTN frame format and overhead processing by referring to the ITU-T G.709.
2. OTU4 layer: supports the SM function.
3. ODU4 layer:
   1. When the client-side service type is 100GE, the board supports the PM function.
   2. When the client-side service type is OTU4, the board supports the PM and TCM functions, PM and TCM non-intrusive monitoring functions.
4. ODUflex layer: supports PM overhead processing.

NOTE:

Only TN55TSC boards support PM overhead processing at the ODUflex layer.

ESC function

Supported when the client side service type is OTU4.

PRBS function

Supports the PRBS function on the client side, only when the client side service type is OTU4.

LPT function

Not supported

FEC coding

Supports forward error correction (FEC) on the client side that complies with ITU-T G.709, only when the service type is OTU4.

Alarm and performance event monitoring

1. Monitors BIP8 bytes (Bursty mode) for the OTN service to help locate line failures.
2. Monitors OTN alarms and performance events.
3. Monitors parameters such as the bias current, temperature, and optical power of the laser.
4.  

Supports the remote monitoring (RMON) of Ethernet services.

ALS function

Supports the ALS function on the client side when client services are non-OTN services.

Test frame

Supported only when the client-side service type is 100GE.

Latency measurement

1. TN54TSC: not supported.
2. TN55TSC: supports latency measurement. The bidirectional latency at the ODUk layer between two tributary boards supporting the latency measurement function can be measured, and the latency data is displayed on the U2000.

NOTE:

This function is not supported when the client-side service type is OTU4.

IEEE 1588v2

TN54TSC: not supported.

TN55TSC: supports the TC, TC+OC, BC, and OC modes when the client-side service type is 100GE and the Port Mapping is MAC Transparent Mapping.

Physical clock

Bit Transparent Mapping ODU4

Mac Transparent Mapping ODU4

Supports synchronous Ethernet transparent transmission.

Supports synchronous Ethernet processing.

NOTE:

The TN54TSC board does not support the synchronous ethernet processing function.

Electrical-layer ASON

Supported

Ethernet service mapping mode

TN54TSC

Bit Transparent Mapping ODU4 (100G)

TN55TSC

Bit Transparent Mapping ODU4 (100G)

MAC Transparent Mapping ODU4 (100G)

Port MTU

1. When Port Mapping is set to Bit Transparent Mapping ODU4 (100G), data frames will be transparently transmitted.
2. When Port Mapping is set to MAC Transparent Mapping ODU4 (100G), the MTU value can be set by Max. Packet Length within the range from 1518 bytes to 9600 bytes. Data frames whose length exceeds the MTU value will be directly discarded.

Protection scheme

1. Supports client 1+1 protection.
2. Supports tributary SNCP protection.

NOTE:

Supports the tributary SNCP protection, only when the client side service type is OTU4.

Client-side 1+1 protection is not supported when 100GBASE-SR10-100 m-CFP optical modules are used.

Loopback

Client side

Inloop

Supported

Outloop

ODUk Inloop

Supported

NOTE:

The board supports ODUk inloop and ODUk outloop only when non-OTN services are received and the port working mode is non-convergence.