Trying to reload only member 2 for C9600 switch virtual-stack mode

[toufik.aibeche@gmail.com]

Hi All

we have a pair of C9600 configured with virtual-stacking mode
had recently an issue with a new uplink that keeps getting error disable on the C9600 switch side (only on member 2)

Mar 7 10:39:30 MST: %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Twe2/5/0/5, transmit/receive loop detected
Mar 7 10:39:30 MST: %PM-4-ERR_DISABLE: udld error detected on Twe2/5/0/5, putting Twe2/5/0/5 in err-disable state

cleaned up and replaced all the fiber links but still couldn`t fix the issue
couldn`t find any post with similar issue,
We decided finally to reload member 2 of the virtual-stack, was trying to do last night but it looks like we have the reload the whole stack

Cisco IOS XE Software, Version 17.09.05
Cisco IOS Software [Cupertino], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.9.5, RELEASE SOFTWARE (fc1)


sh switch
DS-TRILEY-5141#sh switch
Switch/Stack Mac Address : b8a3.77cb.7900 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
-------------------------------------------------------------------------------------
*1 Active b8a3.77cb.7900 15 V02 Ready
2 Standby b8a3.77f5.0c00 14 V02 Ready



Any idea please 

[marce1000]

  - Try using a different port (name) for the links at both ends :
     E.g. :  Twe2/5/0/5 (first switch) ,  and not that interface (name),  on the other switch ,

  M.

[Leo Laohoo]

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toufik.aibeche@gmail.com wrote:
We decided finally to reload member 2 of the virtual-stack, was trying to do last night but it looks like we have the reload the whole stack

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Completely power down chassis #2, wait for 30 seconds and then energize.