Guest

Preview Tool

Cisco Bug: CSCvu74755 - DiagPhyLoopbackTest failing on C9200 mGig switch

Last Modified

Oct 05, 2020

Products (1)

  • Cisco Catalyst 9200 Series Switches

Known Affected Releases

16.12 17.1.1 17.3.1 17.4.1

Description (partial)

Symptom:
When DiagPhyLoopbackTest  test is run, it fails for all the downlink and uplink ports.

Conditions:
The change is in common code for multiple cat9k platforms (9200, 9300, 9500, 9400). Although its a corner case and but can impact all mentioned platforms.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.