Am 16.04.2014 13:08, schrieb Jeroen Massar: > More specifics are evil and give weird routing in various locations.
Not always. When Init7 started to propagate more specifics to it's four /19 and /18, about 2gig of inbound traffic switched from transit links to peering links. This is real money and IMHO a valid reason to propagate selectivly more specific prefixes (i.E. two /20 for one /19). Massiv deaggregation however is indeed evil, and there are just too many networks out there which do it unconsciously in a very stupid way. Init7 is filtering away more than 10000 more specific prefixes from transit. To explain this a bit further I'd like to point to a presentation I gave a while ago during NANOG 54. https://www.nanog.org/meetings/nanog54/presentations/Monday/Kuenzler.pdf -- Fredy Kuenzler Init7 (Switzerland) Ltd. AS13030 St. Georgen-Strasse 70 CH-8400 Winterthur Skype: flyingpotato Phone: +41 44 315 4400 Fax: +41 44 315 4401 Twitter: @init7 / @kuenzler http://www.init7.net/
signature.asc
Description: OpenPGP digital signature
_______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
