Re: [Diffserv-interest] QoS in diffserv network
Zoltan.Balint@alcatel.be Mon, 10 November 2003 08:23 UTC
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Date: Mon, 10 Nov 2003 09:21:15 +0100
From: Zoltan.Balint@alcatel.be
Organization: Alcatel,
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To: Brian E Carpenter <brc@zurich.ibm.com>
Cc: Feng Y <feng6@uwindsor.ca>, diffserv-interest@ietf.org
Subject: Re: [Diffserv-interest] QoS in diffserv network
References: <web-29474620@uwindsor.ca> <3FAE86E8.3AE456E7@zurich.ibm.com>
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mid3FAE86E8.3AE456E7@zurich.ibm.com">That would be the case when the relative load in those classes was equal as well. But, since someCan we always assume that a higher service class provides the same or a better service than any lower service class in AF?No. There is no "higher" or "lower" built into AF. There is simply the option of having one or more mutually independent AF service classes, with an arbitrary number of four service classes being named AF1, AF2, AF3, AF4 if you choose to use the recommended code points. If you happen to give each of these classes equal weights in a WFQ scheme they are all offering the same level of service.
classes can be more loaded than others, the service seen in different classes does not
relate to the index of the AF class. Unless, of course, the scheduler was strict priority, which does
not conform to the requirements in RFC2597 (minimum bandwidth).
Regards,
Zoltan
<snip>
- [Diffserv-interest] congestion in diffserv network Feng Y
- Re: [Diffserv-interest] congestion in diffserv ne… John Schnizlein
- Re: [Diffserv-interest] congestion in diffserv ne… Brian E Carpenter
- [Diffserv-interest] QoS in diffserv network Feng Y
- Re: [Diffserv-interest] QoS in diffserv network Brian E Carpenter
- Re: [Diffserv-interest] QoS in diffserv network Zoltan.Balint
- Re: [Diffserv-interest] QoS in diffserv network Brian E Carpenter