Huawei OSN 8800 OTN Tributary Board TN55TTX

Function and Feature

Description

Basic function

TTX converts signals as follows:

1. TN54TTX:
   1.  

10 x 10GE WAN/STM-64/OC-192/OTU2<->10 x ODU2

10 x 10GE LAN/OTU2e<->10 x ODU2e

1. TN55TTX:
   1.  

10 x 10GE WAN/10GE LAN/STM-64/OC-192/OTU2/FC800<->10 x ODU2

10 x FC1200/10GE LAN/OTU2e<->10 x ODU2e

10 x FC800/10GE LAN<->10 x ODUflex

NOTE:

The TN54TTX does not support forward error correction (FEC) on the client side when the client-side service type is OTU2 or OTU2e.

Client-side service type

10GE LAN: Ethernet service at a rate of 10.31 Gbit/s

10GE WAN: Ethernet service at a rate of 9.95 Gbit/s

STM-64/OC-192: SDH/SONET service at a rate of 9.95 Gbit/s

OTU2: OTN service at a rate of 10.71 Gbit/s

OTU2e: OTN service at a rate of 11.1 Gbit/s

FC800: SAN service at a rate of 8.5 Gbit/s

FC1200: SAN service at a rate of 10.51 Gbit/s

NOTE:

Only the TN55TTX supports FC800, FC1200 services.

Cross-connect capabilities

Supports the cross-connection of ten channels of ODU2/ODU2e/ODUflex signals between the TTX board and the cross-connect board through the backplane.

NOTE:

The cross-connection of ODUflex signals is supported only by the TN55TTX board.

OTN function

1. Supports the OTN frame format and overhead processing by referring to the ITU-T G.709. The mapping process is compliant with ITU-T G.709.
2. ODU2/ODUflex layer: supports the PM and TCM function, and PM and TCM non-intrusive monitoring functions.
3. OTU2 layer: supports the SM function.

ESC function

Supported when the client-side service type is OTU2 or OTU2e.

NOTE:

The ESC function can be supported by a maximum of eight channels. In addition, only ports TX1/RX1 to TX8/RX8 support the ESC function.

PRBS function

Supports the PRBS function on the client side.

NOTE:

The PRBS function on the client side is supported only when the client-side service type is STM-64/OC-192/OTU2/OTU2e.

The PRBS function can be configured only on one port at a time for TN54TTX. The TN55TTX board has no limitation.

LPT function

The board supports the LPT function only when the client-side service type is 10GE LAN.

FEC coding

1. TN54TTX: Not supported.
2. TN55TTX: Supports ITU-T G.709-compliant forward error correction (FEC) on the client side, only when the service type is OTU2/OTU2e.

NOTE:

TN54TTX: When the client-side service type is OTU2 or OTU2e, the FEC function of the associated port on the peer board must be disabled.

Alarm and performance event monitoring

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

1. Supports the remote monitoring (RMON) of Ethernet services (10GE LAN).

ALS function

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

Test frame

1. TN54TTX: Not supported.
2. TN55TTX: Supports the test frame function when the client-side service type is 10GE LAN and the Port mapping is MAC Transparent Mapping (10.7 G).

Latency measurement

1. TN54TTX: 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 by the TN54TTX board when the client-side service type is OTU2/OTU2e.

1.  
2. TN55TTX: If non-OTN services are received on the client side, the board supports latency measurement for upstream PM sections. If OTN services are received on the client side, the board supports latency measurement for downstream TCM sections.

NOTE:

The latency measurement function can be configured only on one port at a time.

IEEE 1588v2

1. TN54TTX: Not supported
2. TN55TTX: The TN55TTX board supports the TC, TC+OC, BC, and OC modes when the client-side service type is 10GE LAN and the Port Mapping is MAC Transparent Mapping (10.7 G).

NOTE:

TN55TTX: The board does not support IEEE 1588v2 when the mapping path is 10GE LAN -> ODUflex.

G.8275.1

Only supported by the TN55TTX board.

Physical clock

TN54TTX: When the board receives 10GE LAN services and the port mapping is Bit Transparent Mapping (11.1 G) on its client side, the board can support synchronous Ethernet transparent transmission instead of synchronous Ethernet processing.

TN55TTX: When the board receives 10GE LAN services and the port mapping is Bit Transparent Mapping (11.1 G) on its client side, the board can support synchronous Ethernet transparent transmission instead of synchronous Ethernet processing. When the board receives 10GE LAN services and the port mapping is MAC Transparent Mapping (10.7 G) on its client side, the board can support synchronous Ethernet processing instead of synchronous Ethernet transparent transmission.

Electrical-layer ASON

Supported

Protection scheme

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

NOTE:

When the board receives OTN services, SDH/SONET services, and 10GE WAN services the board supports tributary SNCP protection.

NOTE:

When the board receives FC or FICON services, the client 1+1 protection is not recommended.

Ethernet service mapping mode

1. TN54TTX: Bit Transparent Mapping (11.1G)
2. TN55TTX: Bit Transparent Mapping (11.1G), MAC Transparent Mapping (10.7 G)

Port MTU

The value ranges from 1518 to 9600, in bytes. That is, the maximum size of the supported Jumbo frame is 9600 bytes.

NOTE:

1. Only the TN55TTX supports port MTU.
2. when Port Mapping is set to Bit Transparent Mapping(11.1G), Maximum Packet Length is unavailable on the U2000.

Loopback

Client side

Inloop

Supported

Outloop

Supported

ODUk Inloop

Only the TN55TTX board supports .

NOTE:

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

ODUk Outloop

Channel Loopback

Not supported

Protocols or standards compliance

Protocols or standards for transparent transmission (non-performance monitoring)

IEEE 802.3ae

ITU-T G.707

ITU-T G.782

ITU-T G.783

NCITS FIBRE CHANNEL PHYSICAL INTERFACES (FC-PI)

NCITS FIBRE CHANNEL LINK SERVICES (FC-LS)

NCITS FIBRE CHANNEL FRAMING AND SIGNALING-2 (FC-FS-2)

NCITS FIBRE CHANNEL BACKBONE-3 (FC-BB-3)

NCITS FIBRE CHANNEL SWITCH FABRIC-3 (FC-SW-3)

NCITS FIBRE CHANNEL - PHYSICAL AND SIGNALING INTERFACE (FC-PH)

GR-253-CORE Synchronous Optical Network (SONET) Transport Systems: Common Generic

Protocols or standards for service processing (performance monitoring)

ITU-T G.805

ITU-T G.806

ITU-T G.709

ITU-T G.872

ITU-T G.7710

ITU-T G.798

ITU-T G.874

ITU-T M.3100

ITU-T G.874.1

ITU-T G.875

ITU-T G.808.1

ITU-T G.841

ITU-T G.8201

ITU-T G.873.1