Dell PowerConnect B-FCXs, Configuration Manual

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PowerConnect B-Series FCX Configuration Guide 181
53-1002266-01
PowerConnect B-Series FCX hitless stacking
5
Figure 22 illustrates a hitless stacking switchover after the network administrator increases the
priority value of one of the stack members.
FIGURE 22 Scenario 2 – Hitless stacking switchover after a priority change
1
1 1
1
Priority 200 ass igned
to Unit 3
A s witchover occ u r s .
St a ge s 1 a nd 2
a re complete.
The St a ndby controller
i s re- ass igned
The priority ch a nge trigger s
re-election of the Active controller
1
FCX s t a ck form a tion Device s t a ck priority ch a nge - Scen a rio 2
Active 1 (pri=100)
Standby 2 (pri=0)
Member 3 (pri=0)
Member 4 (pri=0)
Active 1 (pri=100)
Standby 2 (pri=0)
Member 3 (pri=200)
Member 4 (pri=0)
Active 1 (pri=100)
Standby 2 (pri=0)
Member 3 (pri=200)
Member 4 (pri=0)
Active 1 (pri=100)
Member 2 (pri=0)
Standby 3 (pri=200)
Member 4 (pri=0)
Standby 1 (pri=100)
Member 2 (pri=0)
Active 3 (pri=200)
Member 4 (pri=0)
120 s ec. 60 s ec.