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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
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Chapter5 Managing Switch Stacks Understanding Switch Stacks
If you add a provisioned switch that is a different type than specified in the provisioned configuratio n to
a powered-down switch stack and then apply power, the switch stack rejects the (now incorrect) switch
stack-member-number provision type global configuration command in the startup configuration file.
However, during stack initialization, the nondefault interface configuration information in the startup
configuration file for the provisioned interfaces (potentially of the wrong type) is executed. Depending
on the differences between the actual switch type and the previously provisioned switch type, some
commands are rejected, and some commands are accepted.
Note If the switch stack does not contain a provisioned configuration for a new switch, the switch joins the
stack with the default interface configuration. The switch stack then adds to i t s running configuration a
switch stack-member-number provision type global configuration command that matches the new
switch.
For configuration information, see the “Provisioning a New Member for a Switch Stack” section on
page 5-24.

Effects of Replacing a Provisioned Switch in a Switch Stack

When a provisioned switch in a switch stack fails, is removed from the stack, and is replaced with
another switch, the stack applies either the provisioned configuration or the default configuration to it.
The events that occur when the switch stack compares the provisioned configuration with the
provisioned switch are the same as those described in the “Effects o f Adding a Provisioned Switch to a
Switch Stack” section on page5-9.

Effects of Removing a Provisioned Switch from a Switch Stack

If you remove a provisioned switch from the switch stack, the configurat ion associated with the removed
stack member remains in the running configuration as provisioned information. To completely remove
the configuration, use the no switch stack-member-number provision global configuration command.
Hardware Compatibility and SDM Mismatch Mode in Switch Stacks
The switch supports only the desktop Switch Database Management (SDM) templates.
All stack members use the SDM template configured on the stack maste r.
Version-mismatch (VM) mode has priority over SDM-mismatch mode. If a VM-mode condition and an
SDM-mismatch mode exist, the switch stack first attempts to resolve the VM-mode condition.
You can use the show switch privileged EXEC command to see if any stack members are in
SDM-mismatch mode.
For more information about SDM templates and SDM-mismatch mode, see Chapter8, “C onfiguring
SDM Templates.”
Switch Stack Software Compatibility Recommendations
To ensure complete compatibility between stack members, use the information in this section and also
in the “Hardware Compatibility and SDM Mismatch Mode in Switch Stacks” section on page5-11.