This chapter describes how to deploy SteelHeads in an MPLS/VRF environment using Not-So-VRF (NSV) and VRF-aware WCCP. It includes the following sections:

NSV is a Riverbed network design option that leverages the Riverbed WAN optimization solution by deploying SteelHeads in an existing MPLS deployment using virtual routing and forwarding (VRF). You can use NSV when the WCCP router or the Layer-3 switch operating system does not support VRF-aware WCCP. You can use VRF-aware WCCP as an alternative deployment option to NSV when the WCCP router or Layer-3 switch operating system supports VRF-aware WCCP.