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Catalyst 2960-X Stack of 3 - Master switch powered off, management of stack lost


I have a stack of 3 WS-C2960X-48FPD-L switches.


Currently running 15.2(2)E4.


The switch priority is set so that Switch 3 will be come the master if Switch 1 Fails.

Show switch output

*1 Master 005f.86xx.xxxz 15 4 Ready
2 Member 005f.86fxx.xxxy 11 4 Ready
3 Member 005f.86xx.xxxx 13 4 Ready


Switch 1 & 3 have Uplinks in LACP Link Agg to core switch


When Switch 1 is powered off, The devices on switch 2 & 3 continue to function as expected, but I can not manage the stack via the management IP Address.


Unfortunately I could not get a console cable on switch 3 or 2 at that time of the incident.


I am looking to upgrade to tha latest stable version of code, but was wondering if anyone else has run into this and if this possibly a result of Bug - CSCuz18016 - Master switch stuck at Master Re-Init state after master switchover.


After Switch 1 powered on, had to reboot other two switches to get management back.


Thank you

1 Reply 1

Reza Sharifi
Hall of Fame Expert Hall of Fame Expert
Hall of Fame Expert

Are you managing the stack using the out-of-band management port or inband using a vlan?


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