nanog mailing list archives

Re: Policy Statement on Address Space Allocations


From: Dave Siegel <dsiegel () rtd com>
Date: Mon, 29 Jan 1996 21:40:06 -0700 (MST)

There is at least one very simple response.  Set up some deviant CIX, say
IX195-8, let everyone with a shortish 195/8 prefix connect to it either
directly through their own provider, or indirectly through some tunnel, and
have IX195-8 announce reachability of 195/8.  That is, in short, altern
topology to meet addresses when the converse is too hard.  KRE detailed
that for the general case, but it would be even simpler in the case of
RIPE, since all the allocated network numbers are in the same geographical
area.

I still think it would be worthwhile doing a top-down experiment with
this sort of address structure around an easily aggregated geographical
area, say the San Francisco Bay Area in northern California.  I brought the
idea up about 6 months ago and it floundered due to disinterest, but it
still seems to be viable.

However, as Andrew w/UUnet pointed out some time ago, you end up providing
transit in this way.

If the goal is to only announce 195/8, any provider numbered in that block
that is dual-homed with this "deviant CIX" and some other provider suddenly
starts providing transit for the entire "deviant CIX".

I highly doubt that this is desirable.

Dave

-- 
Dave Siegel                  President, RTD Systems & Networking, Inc.
(520)623-9663                Network Engineer -- Regional/National NSPs (Cisco)
dsiegel () rtd com                   User Tracking & Acctg -- "Written by an ISP, 
http://www.rtd.com/~dsiegel/                                    for an ISP."


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