Hi Francis,
I actually agree with you on the semantics of a SPI.
> The SPI doesn't have the semantics.
>
> => I disagree, the SPI has the semantics we'd like to give to it.
>
> A QOS classifier needs to *know*
> the port and protocol numbers; that's how it takes its decisions.
>
> PS: I am in no camp. I believe Jim/Itojun/... are right but the
> flow label is not protected by AH then a router may rewrite it.
> As it is not a stack it should be rewritten only closed to the source
> (ie. if you want to rewrite it anywhere you should encapsulate packets
> before, the decapsulation will restore the original flow label).
> In the future I can see two cases:
> - the flow label is set by the source (first camp)
> - the flow label is set by an edge router (with the DiffServ
> definition
> of what is an edge router) because the source box (or its user) is
> too dumb to deal with QoS/..., according to the edge
> router manager.
> I think we'll get a mixed situation.
Which Is what I support too.
-- thomas
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