Value,Description,Reference 1,IPv4,[RFC2205] 2,IPv6,[RFC2205] 3,IPv6 Flow Label,[RFC2205] 4,IPv4/GPI,[RFC2207] 5,IPv6/GPI,[RFC2207] 6,tagged_tunnel_IPv4,[Fred_Baker] 7,LSP Tunnel IPv4,[RFC3209] 8,LSP Tunnel IPv6,[RFC3209] 9,RSVP-Aggregate-IP4,[RFC3175] 10,RSVP-Aggregate-IP6,[RFC3175] 12,P2MP LSP_IPv4,[RFC4875] 13,P2MP LSP_IPv6,[RFC4875] 14,VPN-IPv4,[RFC6016] 15,VPN-IPv6,[RFC6016] 16,AGGREGATE-VPN-IPv4,[RFC6016] 17,AGGREGATE-VPN-IPv6,[RFC6016]