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Classic MPLS VPN (3) Defined in RFC2547/RFC4364 Many interoperable implementations and deployments Can even support IPv6 VPNs draft-ietf-l3vpn-bgp-ipv6-07.txt Extended for Multicast VPN draft-ietf-l3vpn-2547bis-mcast-01.txt only IPv4 at the moment Scalability Per-PE routing table: O(# of Internet Routes + # of VPN routes for attached customers) per-PE peering: O(# of remote PEs + # of attached customer routers) per-local PE-to-remote PE paths: O(# of remote PEs) Security Discussed in RFC4111, “Security Framework for Provider-Provisioned Virtual Private Networks (PPVPNs)” |