Diagnostic Signals - 2.6 English

1G/10G/25G Switching Ethernet Subsystem Product Guide (PG292)

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2.6 English

There are many error indicators available to check for protocol violations. Carefully read the description of each one to see if it is useful for a particular debugging problem.

The following is a suggested debug sequence:

  1. Ensure that Word sync has been achieved.
  2. Make sure there are no descrambler state errors.
  3. Eliminate CRC32 errors, if any.
  4. Make sure the protocol is being followed correctly.
  5. Ensure that there are no overflow or underflow conditions when packets are sent.