How do I get past "SFP Validation Failed" on a SFP-GE-T transceiver on a Nexus 5548UP?

Question

I inserted a SFP-GE-T (Gigabit RJ-45) transceiver in my Nexus 5548UP and I got "access down" "SFP Validation Failed" in show interface.

According to the Cisco Gigabit Ethernet Transceivers Compability Matrix the SFP-GE-T is compatible with the 5548UP.

Totally valid question @Zypher. Reseating doesn't fix it for me :) — Alain O'Dea, Dec 13, 2011 at 2:27
Are you sure it's not counterfeit? Did you check the serial number? — MikeyB, Dec 14, 2011 at 20:23

Alain O'Dea · Accepted Answer · 2011-12-13 02:29:13Z

7

Configure the port as speed 1000 before inserting the SFP-GE-T transceiver.

If you have the transceiver inserted already, remove it and then set speed 1000 on the port. Upon re-insertion the SFP should come up :)

answered Dec 13, 2011 at 2:29

Alain O'Dea

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