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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
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4.0.0.6
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Code
Version
4.0.0.6
0.0.0.0
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4.0.0.6
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