Re: [Diffserv-interest] CIR in AF class

Brian E Carpenter <brc@zurich.ibm.com> Tue, 11 May 2004 08:12 UTC

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Date: Tue, 11 May 2004 09:35:37 +0200
From: Brian E Carpenter <brc@zurich.ibm.com>
Organization: IBM
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To: Feng Y <feng6@uwindsor.ca>
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Subject: Re: [Diffserv-interest] CIR in AF class
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Yang,

In the diffserv architecture all packets with the same PHB get
the same treatment - so there is no way that different flows
within a class can get different treatments. However, there nothing
to prevent an implementation from going further than the architecture
and doing some type of flow-based additional treatment. But that
would be a proprietary extension.

     Brian

Feng Y wrote:
> Hi,
> 
> I have a question about the services in AF class. According
> to the RFC, the applications in the same service class
> should be treat identically. Does that mean, for a ISP,
> when it negotiates the SLAs with customers, all important
> parameters such as CIRs, CBSs, EBSs, and so on are the
> same? Or, within a class, different applications may have
> different CIRs?
> 
> Thanks.
> 
> Yang
> 
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