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Cisco Bug: CSCvs45642 - N3K-C3408-S:Delayed linkup observed with 40g/100g CR4 on Portflap/OiR

Last Modified

Oct 09, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.2(2v)IHP8(0.122) 9.3(2.51) 9.3(4)IIL9(0.300) 9.3(4)IIL9(0.369)

Description (partial)

CR4 copper 100G cables sometimes, may experience higher link up times when connected between N3K-C3408-S and N9K Switches.
Link up time varies depending upon different Peers. This happens only when auto-negotiation is enabled. The issue may or may not be seen across all the ports.

100G Copper CR4 XCVR connected between N3K-C3408-S and  N9K Peer with auto-negotiation enabled.
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