[ih] Variable DSCP Values Per Flow

[Brian E Carpenter]

Hi Joe and Timothy,

For the DSCP, discussion normally takes place in TSVWG these days, and for the flow label, either in 6MAN or V6OPS. But I'll reply technically off list.

Regards
    Brian Carpenter

On 21-Jan-23 05:25, touch--- via Internet-history wrote:
> Hi, Timothy,
> 
> This isn’t on-topic for this list; it might be useful to ask this to the IETF lists, e.g., intarea.
> 
> Joe (list admin)
> —
> Dr. Joe Touch, temporal epistemologist
> www.strayalpha.com
> 
>> On Jan 20, 2023, at 8:09 AM, Timothy J. Salo via Internet-history <internet-history at elists.isoc.org> wrote:
>>
>> I had always assumed that the DSCP value (and the TOS value before that)
>> was supposed to remain constant over the life of a flow (five-tuple).
>> However, I couldn't find this restriction actually written down.
>>
>> Is there any prohibition in the various specifications against changing
>> the DSCP value within a flow, perhaps per packet?
>>
>> Has anyone tried doing this to, for example, request the network to
>> treat packets within a flow differently?
>>
>> I suppose the same question could be asked about the IPv6 flow label.
>>
>> Thanks,
>>
>> -tjs
>> -- 
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>