Guest

Preview Tool

Cisco Bug: CSCvt68164 - N3K-C3172TQ When upgrading to 7.0(3)I7(8) ports to WS-C2960X mgmt go down (linkFlapErrDisabled)

Last Modified

Jun 12, 2020

Products (1)

  • Cisco Nexus 3000 Series Switches

Known Affected Releases

7.0(3)I7(8)

Description (partial)

Symptom:
Ports show the following status and Ethpc logs show multiple debounce timeouts Ethernet1/1 is down (linkFlapErrDisabled)

10) Event E_PC_LOG_IF_CMD length:8, at 25856 usecs after Mon Mar 30 21:49:25 2020
  Cmd:PORT_CMD_ERR_DISABLE(0x5c) Status:SUCCESS(0x0)
  

11) Event E_PC_LOG_IF_CMD length:8, at 893315 usecs after Mon Mar 30 21:49:24 2020
  Cmd:PORT_CMD_DISABLE(0x3) Status:SUCCESS(0x0)
  

12) Event E_PC_LOG_IF_DN length:31, at 892584 usecs after Mon Mar 30 21:49:24 2020
  Ethernet1/1(0x1a000000) Link status:DOWN(0x3) 
  Stsinfo:Link down debounce timer stopped and link is down(0x40e50007)


13) Event E_PC_LOG_IF_CMD length:8, at 891684 usecs after Mon Mar 30 21:49:24 2020
  Cmd:PORT_CMD_DISABLE(0x3) Status:SUCCESS(0x0)
  

14) Event E_PC_LOG_IF_DN_START length:31, at 525801 usecs after Mon Mar 30 21:49:24 2020
  Ethernet1/1(0x1a000000) Link status:DOWN(0x3) 
  Stsinfo:Link down debounce timer started(0x40e50006)

Conditions:
Upgrading to 7.0(3)I7(8) from 6.0(2)U6(6) ports ports directly connected to 100Mb Cat 2960X mgmt interface get put into the following state: Ethernet1/1 is down (linkFlapErrDisabled)
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.