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The Ethernet Test Failed Because the Test Frame Carrying Mode of the N5EFS0 Board Was Inconsistent with That of the Opposite Data Board

Publication Date:  2012-07-25 Views:  30 Downloads:  0
Issue Description
During a deployment project, the engineers configured point-to-point services between the N5EFS0 board on an OptiX OSN 3500 and the N3EGS4 board on an OptiX OSN 7500. No alarm was reported, but the Ethernet test failed when the OptiX OSN 3500 sent test frames. On the OptiX OSN 3500, the NE software was of version 5.21.17.31, and the N5EFS0 board was of version 1.14; on the OptiX OSN 7500, the NE software was of version 5.21.18.50, and the N3EGS4 board was of version 7.13.
Alarm Information
The Ethernet test failed.
Handling Process

1. After service configurations, no SDH or Ethernet alarms were reported.

2. Queried the test frame carrying modes of the two boards. The carrying mode of the N5EFS0 board is the ETH (MAC) carrying mode, but that of the N3EGS4 board is the GFP mode.

3. Ran the :ethn-cfg-set-testcarrymode; command and set the test frame carrying mode of the N5EFS0 board to GFP. Then, performed the Ethernet test. The test succeeded.

4. According to Huawei R&D engineers, the N5EFS0 board supports the MAC carrying mode and the GFP carrying mode. But the MAC carrying mode is taken by default. 
Root Cause
The test frame carrying mode of the N5EFS0 board is MAC carrying by default, which is different from that of the N3EGS4 board.
Suggestions
Set the default test frame carrying mode of the N5EFS0 board to GFP.

END