Configuration Guide User guide
FastIron Configuration Guide 341
53-1002494-02
Hitless stacking
Enabling hitless stacking
Hitless stacking is disabled by default. To enable it, enable hitless failover as described in
“Enabling hitless stacking failover” on page 342.
Displaying hitless stacking status
You can use the show stack command to view whether or not hitless stacking is enabled. The
following example shows that hitless stacking is disabled.
Syntax: show stack
Displaying pending device roles
When hitless stacking is disabled, a priority change will trigger an election, but the newly-elected
winner will not assume its role until the entire stack is reloaded or hitless stacking is enabled.
You can use the show stack command to view pending device roles. The “Role” column displays the
current role for each unit. The “Comment” column displays the role that will take effect after a
reload or when hitless stacking is enabled.
Brocade#show stack
alone: standalone, D: dynamic config, S: static config
ID Type Role Mac Address Pri State Comment
2 S FCX648S member 0000.0000.0000 0 reserve
3 S FCX624 member 0024.3876.2640 0 remote Ready
5 S FCX624 standby 00e0.5200.0400 100 remote Ready
8 S FCX648 active 0024.3877.7980 128 local Ready
active standby
+---+ +---+ +---+
-2/1| 8 |2/2--2/2| 3 |2/1--2/1| 5 |2/2-
| +---+ +---+ +---+ |
| |
|-------------------------------------|
Standby u5 - No hitless failover. Reason: hitless-failover not configured