Runtime Configuration Mismatch

In some cases, such as a runtime configuration mismatch between the active controller and candidate standby controller, the standby controller cannot be assigned by the active controller unless the candidate standby controller is reloaded.

As shown in the following example, the show stack command output indicates whether there is a runtime configuration mismatch.

device# show stack
alone: standalone, D: dynamic config, S: static config
ID   Type            Role   MAC Address     Pri State  Comment
1  S ICX7850-48FS    active 0000.0001.0000  30  local  Ready
2  D ICX7850-48F     member 0000.0002.0000  20  remote Ready, standby if reload  
                 active
     +---+        +---+
 -2/1| 2 |2/5--2/1| 1 |2/2-
     +---+        +---+
Note: There is no standby. Reason: u2: diff runtime config
Current stack management MAC is 0000.0001.0000
Note: no "stack mac" config. My MAC will change after failover.