47-5
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
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Chapter 47 Configuring Web Cache Services By Using WCCP
Configuring WCCP
• It distributes the WCCP information to any switch that joins the stack.
• It programs its hardware with the WCCP information it processes.
Stack members receive the WCCP information from the master switch and program their hardware.
Unsupported WCCP Features
These WCCP features are not supported in this software release:
• Packet redirection on an outbound interface that is configured by using the ip wccp redirect out
interface configuration command. This command is not supported.
• The GRE forwarding method for packet redirection is not supported.
• The hash assignment method for load balancing is not supported.
• There is no SNMP support for WCCP.
Configuring WCCP
These sections describe how to configure WCCP on your switch:
• Default WCCP Configuration, page 47-5
• WCCP Configuration Guidelines, page 47-5
• Enabling the Web Cache Service, page 47-6 (required)
Default WCCP Configuration
WCCP Configuration Guidelines
Before configuring WCCP on your switch, make sure to follow these configuration guidelines:
• The application engines and switches in the same service group must be in the same subnetwork
directly connected to the switch that has WCCP enabled.
• Configure the switch interfaces that are connected to the web clients, the application engines, and
the web server as Layer 3 interfaces (routed ports and switch virtual interfaces [SVIs]). For WCCP
packet redirection to work, the servers, application engines, and clients must be on different subnets.
• Use only nonreserved multicast addresses when configuring a single multicast address for each
application engine.
Ta ble 47-1 Default WCCP Configuration
Feature Default Setting
WCCP enable state WCCP services are disabled.
Protocol version WCCPv2.
Redirecting traffic received on an interface Disabled.
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