When the Ethernet boards are interconnected, the test frame cannot function normally due to the inconsistent bearing modes.
Symptom
When the N2EFS4 board is interconnected to the N1EFT8/R1EFT4/N1EFT8A board, the receive end fails to receive any test frame, and the transmit end fails to receive any response frame.
Cause Analysis
The N2EFS4 board transmits the test frames in Ethernet bearing mode, but the N1EFT8/R1EFT4/N1EFT8A board supports GFP bearing mode only.
Procedure
- Before enabling the function of the test frame, check whether the bearing modes at the two interconnected ends are consistent.
- For the board whose bearing mode of the test frame can be set and queried, you just need to query on the T2000.
- For the board whose bearing mode of the test frame cannot be set or queried, you need to refer to "Availability" in "Test Frame" of Features Description to obtain its bearing mode.
- If the bearing modes of the boards at the two interconnected ends are inconsistent, change the bearing modes to be the same so that the test frame can function normally.
Reference
Before transmitting test frames, ensure that the VC trunk port on which the function of the test frame is enabled, and that the corresponding cross-connection is configured.
The bearing modes of the boards at the two interconnected ends must be consistent. The boards in equipment of different versions may support different bearing modes for the test frame. See "Availability" in "Test Frame" of Features Description.
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