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Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapter 6 Configuring the System
Configuring CDP
Beginning in privileged EXEC mode, follow these steps to add a trap manager and a community string:
Configuring CDP
Use the Cisco IOS CLI and Cisco Discovery Protocol (CDP) to enable CDP for the switch, set global
CDP parameters, and display information about neighboring Cisco devices.
CDP enables the Cluster Management Suite (CMS) to display a graphical view of the network. For
example, the switch uses CDP to find cluster candidates and to maintain information about cluster
members and other devices up to three cluster-enabled devices away from the command switch.
You can configure CDP to discover switches running the CMS up to seven devices away from the
command switch. Devices that do not run clustering software display as edge devices, and CDP cannot
discover any device connected to them.
Note Creating and maintaining switch clusters is based on the regular exchange of CDP messages. Disabling
CDP can interrupt cluster discovery. For more information about the role that CDP plays in clustering,
see the “Automatic Discovery of Cluster Candidates and Members” sectiononpage5-4.
Table 6-2 Catalyst 2950 Switch Traps
Config Generate traps whenever the switch configuration changes.
SNMP Generate the supported SNMP traps.
TTY Generate traps when the switch starts a management console CLI session.
VLAN membership Generate a trap for each VLAN Membership Policy Server (VMPS) change.
VTP Generate a trap for each VLAN Trunking Protocol (VTP) change.
cluster Generate the cluster traps.
entity Generate the ENTITY_MIB traps.
hsrp Generate the SNMP HSRP traps.
rtr Enable the SNMP Response Time Reporter Traps.
mac-notification Generate a trap when a MAC address is added or removed from any interface.
C2900/3500 Generate the switch-specific traps. These traps are in the private
enterprise-specific Management Information Base (MIB).
Command Purpose
Step 1
config terminal Enter global configuration mode.
Step 2
snmp-server host
172.2.128.263 community-string
snmp vlan-membership
Enter the trap manager IP address, the community string, and the
traps to generate.
Step 3
end Return to privileged EXEC mode.
Step 4
show running-config Verify that you entered the information correctly by displaying the
running configuration.
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