07-01-2022 07:31 AM
Hi I facing big issue
I have c9300 stack
Switch 1 <master active
Switch 2 <Member active
Switch 3 <Member active
2 times Switch2 and Switch3 freezing , After unplug and reboot they back to normal , How to start to troubleshooting
They are Core-Network Switch , Provide command plz
thanks
07-01-2022 07:40 AM
its better to upgrade OS to latest stable release.
07-01-2022 07:42 AM
have you collected any logs when this occuring.
if the IOS XE 16.X please upgrade to IOS XE 17.3.5 and test again.
07-01-2022 06:14 PM
Post the complete output to the following commands:
07-03-2022 07:24 AM - edited 07-04-2022 01:27 AM
I had a similar issue recently and it turned out to be a faulty stacking cable. It was a weird fault - all L3 functionality stopped, however L2 continued to work. With 17.3x you can see enhanced details about the stack-port state with the command 'show switch stack-ports detail'. In my case there were errors on one side of an interface that were incrementing. The stack would work fine for a period of up to a couple of days and then get in this weird L2 works, L3 doesn't state, the only fix was a reboot. Replaced the stack cable where the errors were and rebooted and its been fine since.
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