WCCPv1 Vs WCCPv2

WCCPv1 Vs WCCPv2

WCCPv1	WCCPv2
·         Only a single router services a cluster of systems	·         Multi-Router Support ·         Up to 32  WCCP servers/client
·         No multicast -use UDP port 2048	·         Multicast Support -send traffic to  224.0.0.100
·         Supports HTTP (TCP port 80) traffic flows only ·	·         Support for redirection of non-HTTP traffic
·         No  Web cache Packet return	·         Web cache Packet return
·         No authentication	·         MD5 authentication support

WCCPv1

·         Provides generic routing encapsulation (GRE) to prevent packet modification

·         Routers and cache engines communicate to each other via a control channel based on UDP port 2048

WCCPv2

·         Allows for use across up to 32 routers (WCCP servers)

·         Supports up to 32 engines/accelerators (WCCP clients)

·         Supports any IP protocol including any TCP or UDP

·         Supports up to 255 service groups (0-254)

·         Adds MD5 shared secret security

·         Load distributions like load balancing and load shedding

With the introduction of WCCPv2 the scope of the protocol widened to include traffic types other than HTTP allowing the protocol to be used as a more general interception mechanism.

In WCCPv2 clients specify the nature of the traffic to be intercepted and forwarded to external devices which are then in a position to provide services, based upon the traffic type, such as WAN optimisation and application acceleration