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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: why not AS number based prefixes aggregation
Christopher Morrow wrote: > On Mon, Sep 8, 2008 at 9:20 AM, yangyang. wang <[email protected]> wrote: >> Hi, everyone: >> >> For routing scalability issues, I have a question: why not deploy AS >> number based routing scheme? BGP is path vector protocol and the shortest >> paths are calculated based on traversed AS numbers. The prefixes in the same >> AS almost have the same AS_PATH associated, and aggregating prefixes >> according to AS will shrink BGP routing table significantly. I don't know >> what comments the ISPs make on this kind of routing scheme. > > you might look at LISP, which is sort of like 'route by asn', with > some other benefits added as well. > > <http://www.nanog.org/mtg-0706/Presentations/lightning-farinacci.pdf> NANOG site changed, thus that is now: http://www.nanog.org/meetings/nanog40/presentations/lightning-farinacci.pdf and: http://www.nanog.org/meetings/nanog41/presentations/lisp-nanog-abq.pdf Also check http://www.lisp4.net/ as they are actually testing this in live environments :) Greets, Jeroen Attachment:
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