nanog mailing list archives
Re: Fast TCP?
From: Marshall Eubanks <tme () multicasttech com>
Date: Thu, 5 Jun 2003 06:56:37 -0400
Hello;e-VLBI streams can easily sustain packet losses. IMHO these streams should be sent UDP with application layer congestion control, minimal FEC if necessary and "worse than best effort" QOS (because VLBI has little money but an almost infinite ability to generate bits). These TCP based tools may be useful for other applications, but I do not think that they are the right path for e-VLBI.
Regards Marshall On Thursday, June 5, 2003, at 02:02 AM, Mans Nilsson wrote:
Subject: RE: Fast TCP? Date: Wed, Jun 04, 2003 at 11:41:22PM -0400 Quoting Deepak Jain (deepak () ai net):I am not sure why sending a single large/high speed stream today (>1Gb/s) is such an improvement over sending multiple today-streams of data, but I guess that is the difference between a get-it-done-right and a get-it-done-nowmentality.Because us RE network operators have customers, especially in the astronomy field, that want to push 1gbit streams in realtime from various radio telescopes all over Europe. Moreover, they want them to end up in one place, ie. converge ;-) So, we need to come up with technolgies that can sustain multi-gbit (preferably) TCP streams over 50-100 mS RTT links. And, we've got the OC192 backbones to do it, if TCP were up to it.. -- Måns Nilsson Systems Specialist +46 70 681 7204 KTHNOC MN1334-RIPE ... bleakness ... desolation ... plastic forks ... <mime-attachment>
T.M. Eubanks e-mail : tme () multicasttech com http://www.multicasttech.com Test your network for multicast : http://www.multicasttech.com/mt/ Our New Video Service is in Beta testing http://www.americafree.tv
Current thread:
- Fast TCP? Mike Leber (Jun 04)
- Re: Fast TCP? Allan Liska (Jun 04)
- Re: Fast TCP? Marshall Eubanks (Jun 04)
- RE: Fast TCP? Deepak Jain (Jun 04)
- RE: Fast TCP? Hank Nussbacher (Jun 04)
- RE: Fast TCP? Rob Thomas (Jun 04)
- RE: Fast TCP? Deepak Jain (Jun 05)
- Re: Fast TCP? Mans Nilsson (Jun 04)
- Re: Fast TCP? E.B. Dreger (Jun 04)
- Re: Fast TCP? Scott Francis (Jun 05)
- Re: Fast TCP? Marshall Eubanks (Jun 04)
- Re: Fast TCP? Marshall Eubanks (Jun 05)
- Re: Fast TCP? Allan Liska (Jun 04)
- Re: Fast TCP? John Kristoff (Jun 05)