05-23-2024 12:22 AM - edited 05-23-2024 12:23 AM
Hello,
I have 2 Cisco Stack switchs connect to 2 Aruba Stack Switchs.
On CIsco switch, i configured port-channel (also from Aruba switchs). Everything works very good.
But yesterday, i powered off the 2 Aruba Switchs and just after i powered on.
But after restart the ports didn't come UP, they stay shutdown. So i take a look on Cisco switch ports and i case see that ports was in status 'err-disable'. I just passed the command 'shutdown' on port-channel and 'no shutdown' and after that all ports was UP again.
But i don't understand why when i Power off Aruba Switchs, Ports on Cisco are err-disable ? what could be the cause ? it is normal ?
thanks
05-23-2024 12:46 AM
Hello,
when the ports go in err-disable state, the log (sh log) should tell you the reason. If that output is still there, can you try to find it and post it here ?
05-23-2024 01:36 AM
enable logging, console/monitor logging level 7
then
shut/ no shut the port (err-disable)
show logging
you can detect what is the cause of err-disable
MHM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide