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Cisco EtherSwitch Service Modules Feature Guide
Switch Stack Configuration Scenarios
79
Cisco IOS Release 12.2(25)SEC
Table 4 Switch Stack Configuration Scenarios
Scenario Action Result
Stack master election
specifically determined
by existing stack masters
Connect two powered-up switch stacks
through the Cisco StackWise ports.
Only one of the two stack masters becomes the new
stack master.
Stack master election
specifically determined
by the stack member
priority value
1. Connect two Cisco EtherSwitch service
modules through their Cisco StackWise
ports.
2. Use the switch stack-member-number
priority priority-number global
configuration command to set one stack
member with a higher member priority
value.
3. Restart both stack members at the same
time.
The stack member with the higher priority value is
elected stack master.
Stack master election
specifically determined
by the configuration file
Assuming that both stack members have the
same priority value:
1. Make sure that one stack member has a
default configuration and that the other
stack member has a saved (nondefault)
configuration file.
2. Restart both stack members at the same
time.
The stack member with the saved configuration file
is elected stack master.
Stack master election
specifically determined
by the cryptographic IP
services image
Assuming that all stack members have the
same priority value:
1. Make sure that one stack member has
the cryptographic IP services image
installed and that the other stack
member has the noncryptographic IP
services image installed.
2. Restart both stack members at the same
time.
The stack member with the cryptographic IP
services image is elected stack master.
Stack master election
specifically determined
by the IP services image
Assuming that all stack members have the
same priority value:
1. Make sure that one stack member has
the noncryptographic IP services image
installed and that the other stack
member has the cryptographic IP base
image installed.
2. Restart both stack members at the same
time.
The stack member with the noncryptographic IP
services image is elected stack master.