Name: draft-ietf-l3vpn-vpn-vr-02
Title: Network based IP VPN Architecture using Virtual Routers
State: Pending
Authors: Paul Knight, Hamid Ould-Brahim, Bryan Gleeson
Group: Layer 3 Virtual Private Networks (l3vpn)
Date: 2004-04-26
This draft describes a network-based Virtual Private Network (VPN)
architecture using the virtual router (VR) concept. Multiple VRs can exist
in a single physical device. A VR emulates all the functionality of a
physical router, and therefore inherits all existing mechanisms and tools
for configuration, operation, accounting, and maintenance. Any routing
protocol can be used to distribute VPN reachability information among VRs,
and no VPN- related modifications or extensions are needed to the routing
protocol for achieving VPN reachability. Direct VR-to-VR connectivity may
be configured through layer-2 links or through IP- or MPLS-based tunnels.
Traffic from VRs belonging to different VPNs may be aggregated over a
architecture accommodates various backbone deployment scenarios, both where
the VPN service provider owns the backbone, and where the VPN service
provider obtains backbone service from one or more other service providers.
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