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Summarizing Key Aspects of this Solution (2) OAM can employ existing (e.g. Netflow, interface counters per softwire) accounting mechanisms feasible to run tunnel “health probes” (e.g. LSP Ping/VCCV/BFD) along with the usual ICMP ping/trace Multihoming no problem with multihoming from AF island into multiple AFBRs announcing same AF prefix Multi-Softwire Support AFBR can announce different softwires (e.g. GRE and L2TPv3/IPsec), a preference for one over the other and even can have specific prefixes use different softwires if desired L2VPN pseudowires could provide the signaling and encapsulation to transport L2-encapsulated IPv4 or IPv6 packets between AFBRs but there is O(N2) provisioning to consider plus O(N) of L2 interfaces per AFBR |