[ih] Variable DSCP Values Per Flow

[touch at strayalpha.com]

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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