nanog mailing list archives
RE: disconnected autonomous systems
From: "Adam Bechtel" <abechtel () inktomi com>
Date: Wed, 13 Nov 2002 12:53:52 -0800
I don't know how much of it is ignorance, or resource constraints. I've worked with companies that have used disconnected AS's because they couldn't justify multiple AS's and they needed to multihome in multiple isolated locations. I've also worked with companies that deliberately de-aggregate prefixes due to link capacity issues. Network operators have to balance building an ideal network to what equipment, links, IPs and AS's they can justify. I personally rather see network operators de-aggregate and utilize space efficiently as opposed to hoarding larger prefixes to make their network appear like something it isn't. -Adam -----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of Ralph Doncaster Sent: Wednesday, November 13, 2002 11:46 AM To: nanog () merit edu Subject: disconnected autonomous systems I've found there are many providers that have completely disconnected autonomous systems. For example Yipes (6517) uses L3 on the west coast and Williams on the east coast. 66.7.129.0/24 is advertised under their AS through WCG and 209.213.209.0/24 is advertised under their AS through L3. And the number of connected autonomous systems with de-aggregated prefixes appears to be even more common than a disconnected AS. It would seem that many (most?) network operators are just ignoring the more vocal opinions on NANOG. -Ralph
Current thread:
- Re: disconnected autonomous systems, (continued)
- Re: disconnected autonomous systems ren (Nov 13)
- Re: disconnected autonomous systems Ralph Doncaster (Nov 13)
- Re: disconnected autonomous systems Richard A Steenbergen (Nov 13)
- Re: disconnected autonomous systems E.B. Dreger (Nov 13)
- Re: disconnected autonomous systems Ralph Doncaster (Nov 13)
- Re: disconnected autonomous systems Stephen J. Wilcox (Nov 13)
- Re: disconnected autonomous systems Daniel Golding (Nov 13)
- Re: disconnected autonomous systems Stephen J. Wilcox (Nov 13)
- Re: disconnected autonomous systems Daniel Roesen (Nov 16)
- Re: disconnected autonomous systems Stephen J. Wilcox (Nov 16)