Contents
vii
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Cluster Command Switch Characteristics 6-3
Standby Cluster Command Switch Characteristics 6-3
Candidate Switch and Cluster Member Switch Characteristics 6-4
Planning a Switch Cluster 6-5
Automatic Discovery of Cluster Candidates and Members 6-5
Discovery Through CDP Hops 6-6
Discovery Through Non-CDP-Capable and Noncluster-Capable Devices 6-7
Discovery Through Different VLANs 6-7
Discovery Through Different Management VLANs 6-8
Discovery of Newly Installed Switches 6-9
HSRP and Standby Cluster Command Switches 6-10
Virtual IP Addresses 6-11
Other Considerations for Cluster Standby Groups 6-11
Automatic Recovery of Cluster Configuration 6-12
IP Addresses 6-13
Hostnames 6-13
Passwords 6-13
SNMP Community Strings 6-14
Switch Clusters and Switch Stacks 6-14
TACACS+ and RADIUS 6-16
LRE Profiles 6-16
Using the CLI to Manage Switch Clusters 6-16
Using SNMP to Manage Switch Clusters 6-17
CHAPTER
7Managing Switch Stacks 7-1
Understanding Stacks 7-1
Stack Membership 7-3
Master Election 7-5
Stack MAC Address 7-6
Member Numbers 7-6
Member Priority Values 7-7
Stack Offline Configuration 7-7
Effects of Adding a Provisioned Switch to a Stack 7-7
Effects of Replacing a Provisioned Switch in a Stack 7-9
Effects of Removing a Provisioned Switch from a Stack 7-9
Stack Software Compatibility Recommendations 7-9
Stack Protocol Version Compatibility 7-9
Major Version Number Incompatibility Among Switc hes 7-9
Minor Version Number Incompatibility Among Switches 7-10