nanog mailing list archives
Re: multi-homing fixes
From: Clayton Fiske <clay () bloomcounty org>
Date: Wed, 29 Aug 2001 11:08:08 -0700
On Wed, Aug 29, 2001 at 07:12:19PM +0200, Iljitsch van Beijnum wrote:
Sorry for the late reply. On Fri, 24 Aug 2001, Randy Bush wrote:the /24s of small multihomers is half the routing table (see geoff's data)This can't possibly be correct. The last figure I read was that there are about 70k /24s. There are about 21k AS numbers out there. This means that by far most of the announcements, including /24s, are the result of lack of CIDR. Either because ISPs have a relatively large number of PA blocks (address conservation) or because of lack of aggregation.
Small multihomer /24s aren't necessarily their own. I've dealt with plenty of customers multihoming with a /24 from their other provider without running BGP. No extra AS number, but the /24 still shows up in the global table. Also seen customers with their own /24, but having us originate it rather than doing BGP with them. -c
Current thread:
- Re: multi-homing fixes, (continued)
- Re: multi-homing fixes Valdis . Kletnieks (Aug 28)
- RE: multi-homing fixes Charles Sprickman (Aug 27)
- RE: multi-homing fixes Randy Bush (Aug 28)
- Re: multi-homing fixes Leo Bicknell (Aug 28)
- Re: multi-homing fixes Mark Radabaugh (Aug 28)
- Re: multi-homing fixes John Fraizer (Aug 28)
- RE: multi-homing fixes Mark Radabaugh - Amplex (Aug 28)
- Re: multi-homing fixes Valdis . Kletnieks (Aug 24)
- RE: multi-homing fixes Howard C. Berkowitz (Aug 24)
- RE: multi-homing fixes Iljitsch van Beijnum (Aug 29)
- Re: multi-homing fixes Clayton Fiske (Aug 29)
- Re: multi-homing fixes Iljitsch van Beijnum (Aug 29)
- Re: multi-homing fixes Henry Yen (Aug 24)
- RE: multi-homing fixes David Schwartz (Aug 24)
- RE: multi-homing fixes David Schwartz (Aug 24)
- Re: multi-homing fixes Majdi S. Abbas (Aug 24)
- Re: multi-homing fixes Vijay Gill (Aug 24)