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v6ops and AD Consensus “In draft-ietf-v6ops-isp-scenarios-analysis-03.txt we (v6ops) found that we need draft-ooms-v6ops bgp-tunnel-03.txt ("6PE/BGP-tunnel") to provide easier transition for IPv4 MPLS networks. Let me try to summarize the consensus: 1. Problem: to deploy IPv6 over an MPLS network, you'll have to either use manually configured tunnels, deploy IPv6 natively, or upgrade the whole signalling plane to support IPv6. The MPLS operators haven't been enthusiastic about the last option, and in many cases, the others aren't suitable either (if the network is extensive, or using vendors without sufficient native IPv6 capabilities). Therefore an automatic encapsulation in IPv4 MPLS network is needed. 2. Why this solution: there haven't been other proposed solutions to this problem (in v6ops). However, one should note that the generic provider-provisioned VPN framework provides a slightly more extensive means to solve this problem, but is overly complex to those who do not need to provide IPv6 VPN services (but just want to support IPv6 over their MPLS core). Further, draft-ooms-v6ops-bgp-tunnel-03.txt has been implemented, is interoperable, and has been already extensively deployed. 3. Is this ready: the document is ready to be progressed by the routing area for Standards Track -- it has recently been revised a couple of times to remove unneeded functionality that was present earlier on, and is now a very simple and compact specification.” |