[address-policy-wg] PI vs PA in routing table
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Max Tulyev
president at ukraine.su
Thu Sep 28 16:51:27 CEST 2006
Iljitsch van Beijnum wrote: > Ok a bit late but maybe this is useful: > > - there is no easy way to distinguish between a PI and a PA prefix RIPE (and other RIRs) DB? > - increase in RIR delegations last year was about 6%, increase in > advertised prefixes around 16% > > - there are less than 20000 AS numbers and some 180000 prefixes, so at > least 160000 of these prefixes aren't the result of multihoming as such > (although multihomers can also advertise more than one prefix for > traffic engineering reasons or no reason at all of course) > > (If multihoming is going to be a problem then look at AS numbers, the > ASes used by ISPs won't be significant in that case) This is not PI specific, as I can see. There is a lot of PA holders (LIRs) having just one uplink channel. -- WBR, Max Tulyev (MT6561-RIPE, 2:463/253 at FIDO)
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