Reset Search
 

 

Article

Dual mastership seen on a SummitStack

« Go Back

Information

 
TitleDual mastership seen on a SummitStack
Symptoms
A SummitStack is displaying two switches with the master role.
Environment
  • Summit X460
  • Summit X440
  • EXOS 15.3.1
Cause
The stack-ports connecting the master and backup switch is displaying CRC errors. The CRC errors seen on the stack-ports provoked a loss of communication between the master and backup switch triggering a dual mastership.
Resolution
  1. Confirm the stacking cable is securely seated.
  2. Check if these articles might apply
    1. CRC errors are seen on Summit x460 stack links and mixed Summit x440 - x460 stack links
    2. Native stack links are flapping on Summit x460's
    3. X440 Stack dual mastership
    4. X440/X460 dual stack master
  3. If the stacking cable is securely seated and above solutions did not work contact GTAC for further troubleshooting.
Additional notes

Feedback

 

Was this article helpful?


   

Feedback

Please tell us how we can make this article more useful.

Characters Remaining: 255