Description: This MIB module defines objects describing selective VRF download. The selective VRF download feature makes a best effort to download only those prefixes and labels to a physical entity required to forward traffic through the physical entity. The feature accomplishes this by characterizing roles for physical entities baed on their configuration.

Following terminology is introduced with selective VRF download feature:

Core Facing A physical entity which has only core facing interfaces (interfaces that connect to other Provider/Provider Edge devices).

Customer Facing A line physical entity which has one or more customer facing interfaces (interfaces that connect to Customer Edge devices in different VRFs).

Local prefix A prefix that is received from a Customer edge device connected to the router in a configured VRF context.

Remote prefix A prefix received from another Provider Edge device and is imported to a configured VRF.

See the following references for futher information:

RFC 3813 - Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information base (MIB), C. Srinivasan, A. Vishwanathan, and T. Nadeau, June 2004

RFC 4382 - MPLS/BGP Layer 3 Virtual Private Network (VPN) Management Information Base, T. Nadeau & van Der Linde, February 2006

Acronyms: VRF Virtual Routing and Forwarding VPN Virtual Private Network P Provider Core Device PE Provider Edge Device CE Customer Edge Device AFI Address Family Identifier CEF Cisco Express Forwarding