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Stacking Dell PowerConnect 7000 Series Switches
Failover Scenarios
This section describes examples of what happens when a stack member or the Master unit fails.
Scenario 1
In this example, the stack has four members that are connected through a daisy-chain. When all four
units are up and running, the show switch CLI command gives the following output:
console#show switch
Managemen
Switch Status
------ ---------- ------------- --------- --------
1
Stack Mbr
2
Stack Mbr
3
Mgmt Sw
4
Stack Mbr
At this point, if Unit 2 is powered off or rebooted due to an unexpected failure, show switch gives the
following output:
console#show switch
Management
Switch Status
------ ----------- ------------
1
Stack Mbr
2
Unassigned
3
Mgmt Switch
4
Stack Mbr
When the failed unit resumes normal operation, the previous configuration that exists for that unit is
reapplied by the Master unit.
Standby
Preconfig Plugged-in
Status
Model ID
Standby
PCT7048
PCT7048
PCT7048
PCT7048
Standby
Preconfig Plugged-in
Status
Model ID
--------- ----------- ------------ --------
Standby
PCT7048
PCT7048
PCT7048
PCT7048
Switch
Model ID
Status
------------ --------
PCT7048
OK
PCT7048
OK
PCT7048
OK
PCT7048
OK
Switch
Model ID
Status
PCT7048
OK
Not Present
PCT7048
OK
PCT7048
OK
Code
Version
4.0.0.6
4.0.0.6
4.0.0.6
4.0.0.6
Code
Version
4.0.0.6
0.0.0.0
4.0.0.6
4.0.0.6
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