Cisco Catalyst 4500 Series Software Configuration Guide

31-3
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 31 Configuring CDP
Configuring CDP
This example shows how to disable CDP on Fast Ethernet interface 5/1:
Switch(config)# interface fastethernet 5/1
Switch(config-if)# no cdp enable
Displaying the CDP Interface Configuration
To display the CDP configuration for an interface, use this command:
This example shows how to display the CDP configuration of Fast Ethernet interface 5/1:
Switch# show cdp interface fastethernet 5/1
FastEthernet5/1 is up, line protocol is up
Encapsulation ARPA
Sending CDP packets every 120 seconds
Holdtime is 180 seconds
Switch#
Monitoring and Maintaining CDP
To monitor and maintain CDP on your device, enter one or more of the following commands:
This example shows how to clear the CDP counter configuration on your switch:
Command Purpose
Switch# show cdp interface [type/number]
Displays information about interfaces where CDP is
enabled.
Command Purpose
Switch# clear cdp counters
Resets the traffic counters to zero.
Switch# clear cdp table
Deletes the CDP table of information about neighbors.
Switch# show cdp
Displays global information such as frequency of
transmissions and the holdtime for packets being
transmitted.
Switch# show cdp entry entry_name
[protocol | version]
Displays information about a specific neighbor. The
display can be limited to protocol or version
information.
Switch# show cdp interface
[type/number]
Displays information about interfaces on which CDP is
enabled.
Switch# show cdp neighbors
[type/number] [detail]
Displays information about neighboring equipment.
The display can be limited to neighbors on a specific
interface and expanded to provide more detailed
information.
Switch# show cdp traffic
Displays CDP counters, including the number of
packets sent and received and checksum errors.
Switch# show debugging
Displays information about the types of debugging that
are enabled for your switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E