[Diffserv-interest] How to achieve a point-to-point CIR?
John Evans <email@example.com> Mon, 23 July 2007 13:34 UTC
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1ICy3j-0007kP-Ol; Mon, 23 Jul 2007 09:34:47 -0400
Received: from [10.90.34.44] (helo=chiedprmail1.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1ICy3i-0007kK-Rb for firstname.lastname@example.org; Mon, 23 Jul 2007 09:34:46 -0400
Received: from bay0-omc2-s24.bay0.hotmail.com ([22.214.171.124]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1ICy3i-0005FJ-CY for email@example.com; Mon, 23 Jul 2007 09:34:46 -0400
Received: from BAY105-W1 ([126.96.36.199]) by bay0-omc2-s24.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Mon, 23 Jul 2007 06:34:45 -0700
From: John Evans <firstname.lastname@example.org>
Date: Mon, 23 Jul 2007 13:34:45 +0000
X-OriginalArrivalTime: 23 Jul 2007 13:34:45.0822 (UTC) FILETIME=[3BC3B5E0:01C7CD2E]
X-Spam-Score: 0.0 (/)
Subject: [Diffserv-interest] How to achieve a point-to-point CIR?
List-Id: Differentiated services general discussion <diffserv-interest.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/diffserv-interest>, <mailto:email@example.com?subject=unsubscribe>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/diffserv-interest>, <mailto:firstname.lastname@example.org?subject=subscribe>
Content-Type: multipart/mixed; boundary="===============0085704256=="
I wanted to get this group's opinion on an approach I am going to use in a QoS test. I apologize in advance if the solution to this problem is obvious. We have to show that we can guarantee a point-to-point committed information rate (PCIR) to a user. SLAs should include a bandwidth to be meaningful. There are two kinds of CIR, a network CIR where you are guaranteeing that a user can send or receive a certain bandwidth to anywhere in the internet (hose model), or a PCIR where you are guaranteeing a certain bandwidth between two or more sites. The problem is, there has to be a way for the router to know when a packet is associated with that PCIR. The options we see are to either a) have a special DSCP just for PCIR flows, or b) program the router with an Access Control List (ACL) entry that inspects each packet. If the packet matches a specific source/destination then it gets sent to a queue (an AF queue for example) that is dedicated to PCIR. Is there any other way around this? Thanks, John Evans DoD
_______________________________________________ Diffserv-interest mailing list Diffservemail@example.com https://www1.ietf.org/mailman/listinfo/diffserv-interest