PowerConnect B-Series FCX Configuration Guide 169
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PowerConnect B-Series FCX hitless stacking
5
When the Standby Controller is fully synchronized, the system will be ready for a switchover or
failover.
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 illustrated below, the show stack command output will indicate whether there is a runtime
configuration mismatch.
Support during stack formation, stack merge,
and stack split
This section illustrates hitless stacking support during stack formation, stack merge, and stack
split.
PowerConnect#sh stack
alone: standalone, D: dynamic config, S: static config
ID Type Role Mac Address Pri State Comment
1 S FCX624S active 00e0.5201.0000 30 local Ready
active
+---+ +---+
-2/1| 2 |2/2--2/1| 1 |2/2-
+---+ +---+
Note: There is no standby. Reason: u2: diff run-time config
Current stack management MAC is 00e0.5201.0000
Note: no "stack mac" config. My MAC will change after failover.
