Hi Gang, Xiaohu and myself have been developing an approach to FIB reduction called virtual aggregation. Long story short, it allows a single ISP to shrink the demands on its router FIBs by upwards of an order of magnitude with negligible performance penalty (though not that RIB usage does not really change). The upshot is that it extends the life of routers by many years, and this may be particularly important if routing tables shoot up as IPv4 addresses deplete.
We've presented that at IDR the last couple meetings, and gotten much good feedback from that group, but in the end it was decided that GROW would be a more appropriate venue, in part because virtual aggregation requires no changes to the BGP wire protocol. We want to announce the availability of a few drafts on this, the core draft (http://tools.ietf.org/html/draft-francis-intra-va-00), and two companion drafts that describe how to use specific tunnels ( http://tools.ietf.org/html/draft-francis-va-tunnels-mpls-00 and http://tools.ietf.org/html/draft-xu-va-tunnels-gre-00). Note that although this draft have a -00 version, this is actually the third revision. We hope to present these at GROW in SF. Any comments greatly appreciated. PF _______________________________________________ GROW mailing list [email protected] https://www.ietf.org/mailman/listinfo/grow
