Cisco Catalyst 4500 Series Command Reference Guide

2-359
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
OL-27596 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip wccp check services all
ip wccp check services all
To enable all Web Cache Communication Protocol (WCCP) services, use the ip wccp check services all
command in global configuration mode. To disable all services, use the no form of this command.
ip wccp check services all
no ip wccp check services all
Syntax Description This command has no arguments or keywords.
Defaults WCCP services are not enabled on the router.
Command Modes Global configuration (config)
Command History
Usage Guidelines With the ip wccp check services all command, WCCP can be configured to check all configured
services for a match and perform redirection for those services if appropriate. The caches to which
packets are redirected can be controlled by a redirect ACL access control list (ACL) as well as by the
priority value of the service.
It is possible to configure an interface with more than one WCCP service. When more than one WCCP
service is configured on an interface, the precedence of a service depends on the relative priority of the
service compared to the priority of the other configured services. Each WCCP service has a priority
value as part of its definition.
If no WCCP services are configured with a redirect ACL, the services are considered in priority order
until a service is found which matches the IP packet. If no services match the packet, the packet is not
redirected. If a service matches the packet and the service has a redirect ACL configured, then the IP
packet will be checked against the ACL. If the packet is rejected by the ACL, the packet will not be
passed down to lower priority services unless the ip wccp check services all command is configured.
When the ip wccp check services all command is configured, WCCP will continue to attempt to match
the packet against any remaining lower priority services configured on the interface.
Note The priority of a WCCP service group is determined by the web cache appliance. The priority of a WCCP
service group cannot be configured via Cisco IOS software.
Release Modification
12.2(31)SG Support introduced on the Catalyst 4500 series switch.
IOS XE 3.2(0)SG
(15.0(2)SG)
Support extended to Supervisor Engine 6-E, Supervisor Engine 6L-E, Catalyst
4900M, and Catalyst 4948E.
IOS XE 3.3.0 SG
(15.1(1)SG)
Supported extended to Supervisor Engine 7-E and Supervisor Engine 7L-E.

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