nanog mailing list archives
Re: /8 end user assignment?
From: Joe Abley <jabley () isc org>
Date: Fri, 5 Aug 2005 09:55:32 -0400
On 5 Aug 2005, at 07:54, Sabri Berisha wrote:
On Fri, Aug 05, 2005 at 04:10:46AM -0700, Bill Woodcock wrote:On Fri, 5 Aug 2005, Sabri Berisha wrote:With the use of anycast DNS servers on the internet, TCP is no longer anoption for DNS.Bzzzt. Try again./--[cabernet]--[merlot]--[riesling]--[server 1] [end-host] ----- [shiraz] | \--[sangria]]--[chardonnay]--[bordeaux]--[server 2]
It is of course possible to construct networks through which TCP behaves very poorly with anycasted services. This does not mean that TCP is fundamentally incompatible with anycast.
There are plenty of examples of people anycasting services which involve long-held TCP sessions (like FTP servers, and HTTP server serving large media files). Naturally not all networks and not all node placement decisions will work for these kinds of services, but it is certainly possible to use anycast to great effect with very high service quality.
See draft-grow-ietf-anycast-01 for more commentary. Joe
Current thread:
- Re: /8 end user assignment?, (continued)
- Re: /8 end user assignment? Petri Helenius (Aug 06)
- Re: /8 end user assignment? Christopher L. Morrow (Aug 06)
- Re: /8 end user assignment? Iljitsch van Beijnum (Aug 06)
- Re: /8 end user assignment? Iljitsch van Beijnum (Aug 05)
- Re: /8 end user assignment? Bruce Campbell (Aug 05)
- Re: /8 end user assignment? Joel Jaeggli (Aug 05)
- Re: /8 end user assignment? Iljitsch van Beijnum (Aug 05)
- Re: /8 end user assignment? Sabri Berisha (Aug 05)
- Re: /8 end user assignment? Bill Woodcock (Aug 05)
- Re: /8 end user assignment? Sabri Berisha (Aug 05)
- Re: /8 end user assignment? Joe Abley (Aug 05)
- Re: /8 end user assignment? Iljitsch van Beijnum (Aug 06)
- Re: /8 end user assignment? Paul Vixie (Aug 06)
- Re: /8 end user assignment? Valdis . Kletnieks (Aug 06)
- Message not available
- Re: /8 end user assignment? Sabri Berisha (Aug 08)
- Message not available
- Re: /8 end user assignment? Jay R. Ashworth (Aug 05)
- Re: /8 end user assignment? Joel Jaeggli (Aug 05)
- Re: /8 end user assignment? Joel Jaeggli (Aug 05)
- Re: /8 end user assignment? Elmar K. Bins (Aug 05)
- Re: /8 end user assignment? (Aug 05)
- Re: /8 end user assignment? Sabri Berisha (Aug 05)