[11331] in North American Network Operators' Group
Re: Non-ISP companies multi-homing?
daemon@ATHENA.MIT.EDU (Eric Germann)
Sat Jul 26 16:48:32 1997
Date: Sat, 26 Jul 1997 16:23:55 -0400
To: Tim Gibson <tim@taggnet.skyscape.net>
From: Eric Germann <ekgermann@cctec.com>
Cc: Kim Hubbard <kimh@internic.net>, tcap@cctec.com, nanog@merit.edu
At 03:27 PM 7/26/97 -0400, Tim Gibson wrote:
>
>
>On Fri, 25 Jul 1997, Eric Germann wrote:
>
>> Go back and sweep MCI and PSI and Sprint et. al. and SEE what they
really
>> use. Then follow your own guidelines and maybe the startups won't
bitch so
>> much...
>>
>> You can bet when people start paying for addresses there gonna be
pretty
>> pissed when they aren't fully routable.
>>
>
>Eric,
> Ping sweeping will only give NSI/InterNIC a rough estimate of
>current online use. A route could be down at the time of sweep on one
>end, and on the other a single web box could be using 50 IPs. Changes
>would deffinately be welcome in policy. Policing via an "are you awake"
>really shouldn't be one of them.
>
Which is why I agree ping sweeps won't work. And of course, we all keep
our SWIP data up to date. BTW, I would hazard a guess that most of the
wasted IP space is in the academic community. Does anyone really believe
that MIT uses 16 million addresses? And I bet Internic asks for
engineering diagrams to review from the big boys whenever they go back
for an allocation. Kim, do you folks?
I have a university client with 1200 hosts on 4 subnets. Guess what
they've got? A /16. % Utilization: 1.83% % Waste: 98.17% Folks thats
64334 addresses. And we try and jam clients in to blocks of 8 or 16
discrete addresses. Squatters rights I guess :) I've seriously thought
of approaching them for their "quality" IP real estate which isn't in the
swamp.
From a post earlier this week to NANOG:
BGP table version is 4043818, main routing table version 4043818
52606 network entries (146045/157874 paths) using
<color><param>ffff,0000,0000</param>11039224</color> bytes of memory
12848 BGP path attribute entries using 1589828 bytes of memory
27663 BGP route-map cache entries using 442608 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
Dampening enabled. 245 history paths, 46 dampened paths
Feel free to privately email me ( mailto:ekgermann@cctec.com )as to why
if I can jam 128M+ into a backbone router for peering and from above a
53K routing table fits in about 11M, why all the NSP's complain about
bloat in the table? Poor lookup algorithm? Input would be appreciated
for design references.
Mail me and let me know. I don't want to dampen the S/N ratio on NANOG
anymore than I have to.
>BTW I am one of those that constantly has to scrounge for IP space.
>
>
>Tim Gibson
>Skyscape Communications
>
>
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