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Cisco Bug: CSCvv61456 - Random HuGig ports fail to come up on NC55-6X200-DWDM-S LC

Last Modified

Oct 12, 2020

Products (1)

  • Cisco Network Convergence System 5500 Series

Known Affected Releases


Description (partial)

Random Hundred Gig ports on DWDM LC fail to come up. Rx and Tx power show -40dBm.

1. HundredGig ports on NC55-6X200-DWDM-S LC.
2. So far, issue has been observed with ports configured for 8QAM 150G mode.
          controller Optics0/2/0/2 port-mode speed 150G mod 8qam fec 25sdfec diff disable
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