We are looking to deploy WAAS enterprise wide in a MPLS network I currently support. Our client routers function as both CE and PE - the egress interface is label switched and the customer host facing interface resides within a MPLS VRF. We would like to deploy the NM-WAE modules at each site. Are these modules VRF aware? I need to perform the WCCP redirection/inspection on the interface assigned to the VRF. I couldn't find any documents specific to WAAS and MPLS. Has anyone dealt with this yet? Thanks in advance.
Based on Cisco's SRND for WAAS, WCCP is not VRF-aware.
At the time of this writing, WCCP is not VRF-aware. Subsequently, VRF tunnels should not be configured on any routers with direct interfaces to the WAE. MPLS tunneling should work provided that the WAEs are deployed outside of the network tunnels. VRF support for WCCP is expected for WCCP v3.0, tentatively scheduled for release later this year.
Neither WAAS or WCCP are currently VRF aware. This means that the WAE needs full visibility into all the VRFs (through importing/exporting), or the WAE needs to reside (including the interface elected as the WCCP RID) in the VRF you want to optimize traffic for.
I placed the WAAS appliance in the same VRF as the customer data (separate subnet), but it wouldn't form a WCCP "neighbor" relationship until I removed the VRF association. Once the interface was placed in the global routing table, the WCCP neighbor relationship was built.
I will be honest, I am relatively new to WAAS (just got my demo units from Cisco last week) and I am still reading up on the technology, but couldn't I get this to work using PBR?
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