Symptom
Marvell copper SFP RevB2 is not supported on 20x1GE MPA for typhoon linecards. This revision with smu is operational on Trident.
The REV-b0 is supported.
Conditions
copper SFP with revision B2
Workaround
none exist for this problem.
With the Rev-B0 the Preamble is not defined correctly in teh framing. Revision B2 solves this on the copper SFP, but this optic is not supported.
Further Problem Description