HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 deployment guide (AG421-96001, March 2007)

72 7 - WCCP DEPLOYMENTS
Introduction to WCCP
WCCP was originally implemented on Cisco routers, multi-layer switches, and Web
caches to redirect HTTP requests to local Web caches (Version 1). Version 2, which is
implemented on HP EFS WAN Accelerators, can redirect any type of connection from
multiple routers to multiple Web caches.
You configure WCCP to redirect traffic to an HP EFS WAN Accelerator or group of
HP EFS WAN Accelerators:
 so that the HP EFS WAN Accelerators do not have to be physically in-path but
can be virtually in-path. That is, the HP EFS WAN Accelerators are configured to
be physically out-of-path devices while optimizing traffic as if they were in-path
devices.
 to redirect traffic to an HP EFS WAN Accelerator or group of HP EFS WAN
Accelerators to provide load balancing and failover support.
You can configure WCCP on the client-side HP EFS WAN Accelerator or the
server-side HP EFS WAN Accelerator. They can be in-path devices or out-of-path
devices, depending on your network environment.
The following figure illustrates WCCP configured on the client-side and an
out-of-path HP EFS WAN Accelerator on the server-side. This is an example of one
type of WCCP deployment. Contact HP Technical Support for further information at
http://www.hp.com.
Figure 7-1. Basic WCCP Configuration