nanog mailing list archives
RE: CIDR Report
From: "Roeland Meyer (E-mail)" <rmeyer () mhsc com>
Date: Sat, 13 May 2000 10:35:04 -0700
I've mentioned this before, so I'll just note it lightly. There are a growing number of companies (dot-coms are only one of them) that have small head-count (<4000), but are spread out from Sydney to New York, with many "lone eagles" in the MST zone. They could probably do everything on a portable /24. However, with everyone filtering out announcements less than /20, such companies are encouraged to drop NAT, and use other methods to justify a /19, just so they can participate in peering (I won't say whom, one is a CTI development company). The VPN solution is cute, but the entire VP then becomes single-homed, at the VPN gateway (The alternative is that each location gets their own /24, linked by a VPN, to the other /24s, there are serious performance issues with this approach and hte /24 may only represent a single actual user). All of this burns IP addresses. The point: Filtering BGP announcements costs in IP space allocations. There is a mathmatical relationship between IP address allocations, table sizes, and routing policies. Also, part of the relationship is determined by client business requirements. Organizations are becomeing more geophysically diffused, with many end-nodes actually participating in multiple organizations. This is only starting now (I still see over 100K nodes actually doing this), it will get much worse.
-----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of Mikael Abrahamsson Sent: Saturday, May 13, 2000 2:10 AM To: nanog () nanog org Subject: Re: CIDR Report On Sat, 13 May 2000 pjnesser () Nesser COM wrote:But if you look at the last 250 days or so you see that thetable hasgrown by more than 16k routes. So we are seeing growth at300% of what wesaw for the last 5 plus years. It also looks annoyinglygeometric orperhaps exponential, instead of the nice linear growthsince CIDR wasintroduced.If you just check from 01/01/99 to date then it looks linear or at least close to linear. I guess it *could* be that growing amount of new companies getting internet access is increasing. Is there any data that show "CIDR GAIN" from the cidr report, so we can see if the increase corresponds to an increase in (perhaps unneccessary) smaller announcements in larger blocks, or if it is actually just a lot more blocks allocated that needs to be routed. Any stats on arin/ripe/apnic new allocations of blocks in the same timeframe? Both in terms of IP adresses and in number of blocks of IP adresses. This would also give us some kind of hint as to when IPv4 space will be exhausted (or are there already projections about this?) -- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- CIDR Report pjnesser (May 13)
- Re: CIDR Report Mikael Abrahamsson (May 13)
- RE: CIDR Report Roeland Meyer (E-mail) (May 13)
- RE: CIDR Report Daniel L. Golding (May 14)
- Multi-home I (was CIDR Report) Rural CNE (May 13)
- RE: CIDR Report Roeland Meyer (E-mail) (May 13)
- Re: CIDR Report Christian Nielsen (May 13)
- Re: CIDR Report Vijay Gill (May 13)
- Re: CIDR Report Mark Kent (May 13)
- Re: CIDR Report Geoff Huston (May 13)
- Re: CIDR Report Jeremy Porter (May 14)
- <Possible follow-ups>
- RE: CIDR Report Owen DeLong (May 13)
- Re: CIDR Report Danny McPherson (May 13)
- RE: CIDR Report Roeland Meyer (E-mail) (May 13)
(Thread continues...)
- Re: CIDR Report Mikael Abrahamsson (May 13)