| Basic function | TTX converts signals as follows: - TN54TTX:
- TN55TTX:
-
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<->10 x ODUflex NOTE: - Only the TN55TTX supports FC800, FC1200, OTU2 and OTU2e services.
- The cross-connection of ODUflex signals is supported only by the TN55TTX board.
|
| 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, OTU2 and OTU2e 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 | - 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.
- ODU2/ODUflex layer: supports the PM and TCM function, and PM and TCM non-intrusive monitoring functions.
- OTU2 layer: supports the SM function.
|
| ESC function | Supported when the client-side service type is OTU2 or OTU2e. NOTE: A maximum of eight ports 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 | - TN54TTX: Not supported.
- TN55TTX: Supports ITU-T G.709-compliant forward error correction (FEC) on the client side, only when the service type is OTU2/OTU2e.
|
| Alarm and performance event monitoring | - Monitors BIP8 bytes (Bursty mode) to help locate line failures.
- Monitors parameters such as the bias current, temperature, and optical power of the laser.
- Monitors OTN alarms and performance events.
- 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 | - TN54TTX: Not supported.
- 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 | The board 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 OTU2/OTU2e. The latency measurement function can be configured only on one port at a time. |
| IEEE 1588v2 | - TN54TTX: Not supported
- 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).
|
| 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 | - Supports client 1+1 protection.
- Supports ODUk SNCP.
- 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. |
| Ethernet service mapping mode | - TN54TTX: Bit Transparent Mapping (11.1G)
- 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: - Only the TN55TTX supports port MTU.
- 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 |
| 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 ITU-T G.694.1 |
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