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Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter Software Configuration Guide
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Chapter 5 Managing Switch Stacks
Understanding Switch Stacks
If a stack member fails and you replace with it with an identical model, the replacement switch
automatically uses the same interface-specific configuration as the failed switch. Hence, you do not need
to reconfigure the interface settings. The replacement switch must have the same stack member number
as the failed switch. For information about the benefits of provisioning a switch stack, see the “Switch
Stack Offline Configuration” section on page 5-9.
You back up and restore the stack configuration in the same way as you would for a standalone switch
configuration. For more information about file systems and configuration files, see Appendix B,
“Working with the Cisco IOS File System, Configuration Files, and Software Images.”
Additional Considerations for System-Wide Configuration on Switch Stacks
These sections provide additional considerations for configuring system-wide features on switch stacks:
• “Planning and Creating Clusters” chapter in the Getting Started with Cisco Network Assistant,
available on Cisco.com
• “MAC Addresses and Switch Stacks” section on page 6-20
• “Setting the SDM Template” section on page 8-5
• “IEEE 802.1x Authentication and Switch Stacks” section on page 9-8
• “VTP and Switch Stacks” section on page 13-6
• “Private VLANs and Switch Stacks” section on page 15-5
• “Spanning Tree and Switch Stacks” section on page 17-12
• “MSTP and Switch Stacks” section on page 18-8
• “DHCP Snooping and Switch Stacks” section on page 21-8
• “IGMP Snooping and Switch Stacks” section on page 23-7
• “Port Security and Switch Stacks” section on page 25-17
• “CDP and Switch Stacks” section on page 26-2
• “SPAN and RSPAN and Switch Stacks” section on page 29-10
• “ACLs and Switch Stacks” section on page 34-6
• “EtherChannel and Switch Stacks” section on page 37-9
• “IP Routing and Switch Stacks” section on page 38-4
• “IPv6 and Switch Stacks” section on page 39-12
• “HSRP and Switch Stacks” section on page 40-4
• “Multicast Routing and Switch Stacks” section on page 44-10
• “Fallback Bridging and Switch Stacks” section on page 46-3
Switch Stack Management Connectivity
You manage the switch stack and the stack member interfaces through the stack master. You can use the
CLI, SNMP, Network Assistant, and CiscoWorks network management applications. You cannot manage
stack members on an individual switch basis.
