Re: Last Call for draft-ietf-rolc-apr-00.txt
Curtis Villamizar <curtis@ans.net> Thu, 26 October 1995 19:10 UTC
Received: from ietf.nri.reston.va.us by IETF.CNRI.Reston.VA.US id aa21029; 26 Oct 95 15:10 EDT
Received: from guelah.nexen.com by IETF.CNRI.Reston.VA.US id aa21023; 26 Oct 95 15:09 EDT
Received: from maelstrom.nexen.com ([204.249.99.5]) by guelah.nexen.com (8.6.12/8.6.12) with ESMTP id OAA27200; Thu, 26 Oct 1995 14:41:49 -0400
Received: (from root@localhost) by maelstrom.nexen.com (8.6.12/8.6.12) id OAA13146 for rolc-out; Thu, 26 Oct 1995 14:52:14 -0400
Received: from guelah.nexen.com (guelah.nexen.com [204.249.96.19]) by maelstrom.nexen.com (8.6.12/8.6.12) with ESMTP id OAA13137 for <rolc@nexen.com>; Thu, 26 Oct 1995 14:52:11 -0400
Received: from brookfield.ans.net (brookfield-ef0.brookfield.ans.net [204.148.1.20]) by guelah.nexen.com (8.6.12/8.6.12) with ESMTP id OAA27190 for <rolc@nexen.com>; Thu, 26 Oct 1995 14:40:40 -0400
Received: from brookfield.ans.net (localhost.brookfield.ans.net [127.0.0.1]) by brookfield.ans.net (8.6.12/8.6.12) with ESMTP id OAA23652; Thu, 26 Oct 1995 14:52:01 -0400
Message-Id: <199510261852.OAA23652@brookfield.ans.net>
To: Juha Heinanen <jh@lohi.dat.tele.fi>
cc: curtis@ans.net, rolc@nexen.com
Reply-To: curtis@ans.net
Subject: Re: Last Call for draft-ietf-rolc-apr-00.txt
In-reply-to: Your message of "Thu, 26 Oct 1995 18:26:34 +0200." <199510261626.SAA03317@lohi.dat.tele.fi>
Date: Thu, 26 Oct 1995 14:51:59 -0400
Sender: ietf-archive-request@IETF.CNRI.Reston.VA.US
From: Curtis Villamizar <curtis@ans.net>
X-Orig-Sender: owner-rolc@nexen.com
Precedence: bulk
X-Info: Submissions to rolc@nexen.com
X-Info: [Un]Subscribe requests to rolc-request@nexen.com
X-Info: Archives for rolc via ftp://ietf.cnri.reston.va.us/ietf-mail-archive/rolc/
In message <199510261626.SAA03317@lohi.dat.tele.fi>, Juha Heinanen writes: > As I understand it, no assumption is made about how the traffic is > actually treated. RSVP simply communicates traffic characterizations > and requirements. What implementation do with that will vary. Best > effort usually carries no reservation, as it is the default. What the > router does to accomodate best effort traffic is outside of the scope > of int-serv or rsvp. Of course some treatments will provide better > service than others in terms of fairness, goodput, delay, etc. > > Perhaps you mean elastic traffic rather than best effort? > > yes, i forgot that "elastic" was the closest rsvp term to "best effort". Elastic means something very different than best effort. The commonality is that elastic traffic without any minimum rate requirement can survive all but the very worst "best effort" service. Elastic simply means that the traffic can adapt over a very broad range of avilable bandwidth and take advantage of a large amount of available bandwidth or survive a much smaller amount. > so you say that rsvp doesn't have any notion of fairness built in the > service model. if that is so, then it would make sense for the a to be > able to specify that he wants his elastic application to use a direct > abr vc instead of a path through rsvp routers, since he is sure that the > former provides isolation, but has no idea what might happen in the > latter case, where one udp video stream could screw up everything he > tried to do. i consider this a big minus in the rsvp service model. > may be something can be done to fix it? A elastic application can specify a need for a specific minimum bandwidth. Whether that minimum is insure by ABR or other means in part of the network is not the application's decision. This is already part of rsvp/int-serv, though I don't know if a Tspec/Rspec has been defined or if ISI (or others) has implemented a Tspec/Rspec for this type of traffic. So this at least doesn't need fixing. > -- juha Curtis ps- we really should move further discussion to int-serv. I just wanted to clarify this, so others would not assume this misunderstanding of elastic applications and best effort service was fact.
- Last Call for draft-ietf-rolc-apr-00.txt Andrew G. Malis
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Dilip Kandlur
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Dilip Kandlur
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Dilip Kandlur
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Joel Halpern
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Steve Deering
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Tim Salo
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Tim Salo
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Tim Salo
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Lixia Zhang
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Juha Heinanen
- int-serv Cspecs (was Re: Last Call for draft-ietf… Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Hiroshi Esaki
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Joel Halpern
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Yakov Rekhter
- Re: Last Call for draft-ietf-rolc-apr-00.txt Fred Baker
- Re: Last Call for draft-ietf-rolc-apr-00.txt Fred Baker
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew G. Malis
- Re: Last Call for draft-ietf-rolc-apr-00.txt Curtis Villamizar
- Re: Last Call for draft-ietf-rolc-apr-00.txt Andrew Smith