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Beginner

Nexus 5548 Digital Diagnostic features on optics

Hi All,

  Have a Nexus 5548 (running 6.0.2.N1 OS) connected to a FEX 2248PQ via a QSFP+ to 4SFP+ breakout cable.  All is linked up and operating fine.  The 4 QSFP+ ports on the FEX switch don't seem to have an interface# associated to them.  Therefore, I can't seem to view the digital diagnostics on the QSFP+ optics.  I can view the diagnostics on all the other optics as those ports have interface#'s.

Anyone out there know how to view the diagnostics for the QSFP+ ports on the FEX switch?

Thanx.

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Beginner

found the answer.  QSFP+ modules don't support DOM feature.

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Right. Among the 40 Gbps transceivers only the CFP types support DOM, i.e., none of the QSFPs.

This matrix shows all the DOM-capable transceivers.

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