A TOM board on an OptiX OSN 6800 NE is interconnected with an LDGF board on an OptiX OSN 1800 NE on a network. A bidirectional GE service is configured between the two NEs. For the LDGF board, the cross-connections between RX/TXs and LP paths are already configured. For the TOM board that is in tributary-line mode, however, the cross-connections between RX/TXs and LP paths need to be configured. Then, how to configure the cross-connections for a TOM board to transmit services successfully?
1. Configuring principle: The RX1/TX1 to RX4/TX4 (the corresponding interface number on the NM is 3, 4, 5, and 6) on the LDGF board are cross-connected to path 1-4 of LP1 port on the TOM board. That is, RX1/TX1 (3) is cross-connected to LP1.1, RX2/TX2 (4) is cross-connected to LP1.2, RX3/TX3 (5) is cross-connected to LP1.3, and RX4/TX4 (6) is cross-connected to LP1.4.
2. A TOM board that is in tributary-line mode and in non-cascading mode is used as an example. RX1/TX1 to RX4/TX4 on the TOM board are client-side interfaces, and RX5/TX5 to RX8/TX8 on the TOM board are WDM-side interfaces. Assume that GE service signals from the LDGF board are dropped on a D40 board of the OptiX OSN 6800, and the TOM board receives the signals on the WDM-side RX5/TX5 and outputs them on the client-side RX1/TX1.
If a GE service is added on the LDGF board by RX1/TX1 (3), on the TOM board, RX1/TX1 should be cross-connected to LP1.1.If an FE service is added on the LDGF board by RX4/TX4 (6), on the TOM board, RX1/TX1 should be cross-connected to LP1.4.