Contents
vi
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
Event Service 5-3
NameSpace Mapper 5-3
What You Should Know About the CNS IDs and Device Hostnames 5-3
ConfigID 5-4
DeviceID 5-4
Hostname and DeviceID 5-4
Using Hostname, DeviceID, and ConfigID 5-5
Understanding Cisco IOS Agents 5-5
Initial Configuration 5-5
Incremental (Partial) Configuration 5-6
Synchronized Configuration 5-6
Configuring Cisco IOS Agents 5-7
Enabling Automated CNS Configuration 5-7
Enabling the CNS Event Agent 5-8
Enabling the Cisco IOS CNS Agent 5-9
Enabling an Initial Configuration 5-9
Enabling a Partial Configuration 5-11
Displaying CNS Configuration 5-12
CHAPTER
6Clustering Switches 6-1
Understanding Switch Clusters 6-1
Cluster Command Switch Characteristics 6-2
Standby Cluster Command Switch Characteristics 6-3
Candidate Switch and Member Switch Characteristics 6-4
Planning a Switch Cluster 6-4
Automatic Discovery of Cluster Candidates and Members 6-5
Discovery Through CDP Hops 6-5
Discovery Through Non-CDP-Capable and Noncluster-Capable Devices 6-6
Discovery Through Different VLANs 6-7
Discovery Through Different Management VLANs 6-7
Discovery of Newly Installed Switches 6-8
HSRP and Standby Cluster Command Switches 6-9
Virtual IP Addresses 6-10
Other Considerations for Cluster Standby Groups 6-10
Automatic Recovery of Cluster Configuration 6-11
IP Addresses 6-12
Hostnames 6-12
Passwords 6-12
SNMP Community Strings 6-13