The optical interface board (namely, N1SF64) of the OptiX OSN 7500 and the optical interface board (namely, A1SF64) of the OptiX 10G (Metro 5000) support different protocols. In this case, when the two boards are interconnected with each other, the service fails. After two optical interface boards that support the same protocol are interconnected, the service runs normally.
Symptom
The optical interface board (namely, N1SF64) of the OptiX OSN 7500 and the optical interface board (namely, A1SF64) of the OptiX 10G (Metro 5000) support different protocols, which causes the service failure after the two boards are interconnected.
Cause Analysis
The N1SF64 board supports the ITU-T G.709 protocol, which cannot be interconnected with the A1SF64 board that supports the ITU-T G.975 protocol.
Procedure
- Use an optical fiber to connect two N1SF64 boards.
- Verify the boards on the NMS. It is found that the service is normal and no alarm is generated.
- Use an optical fiber to connect the N1SF64 board to the A1SF64 board.
- Verify the boards on the NMS. It is found that the boards cannot work in the normal state. Query the NE alarms. The results are as follows:
- BEFFEC_EXC
- PLL_FAIL
- Replace the board to ensure that the two optical interface boards provide the same rate and support the same protocol. Then, the service is normal, and no alarm is generated.
Reference Information
Before the network commissioning, you must determine whether the protocol adopted by the board supports the interconnection. If the protocols of the two boards to be interconnected do not support the interconnection, the service fails when the interconnection is performed forcibly.
No comments:
Post a Comment