I get that error when attempting to ssh to my new 9606 core(secondary) from the primary 6807-xl. So it's not as simple as blocking that IP, which is not a good solution.
The stack ran into some memory issue and cratered. Switch 4 in the stack didnt restore as it went in boot loop. Had to install a new switch.Version 16.9.4.Tac is investigating system reports in crash logs.
I'm using 16.9.4... getting the same errors and losing pings to the stack. I feel like I need to reload this critical operating room switch before waiting on tac... attempt to pull crashlogs. switch is now reloading and appears stuck