Keith Knightson wrote:
> Or is this a stupid suggestion?
There are no stupid questions. Some of the pushback is
simply based on the fact that the diffserv model of QoS
is inherently broken because there is no end-to-end
immutable set of bits for local decisions to be based on.
What we have on the table is a proposal to take over
part of another field to create that set of bits, but
even that contains the argument that the bits should be
mutable. As soon as that is deployed and proven
inadequate they will be back for another set of bits.
The diffserv WG should have defined a set of PHBs with
global context and mapped a set of DSCPs to those. It
chose not to, and now to make products work people are
looking for another set of bits. That is the wrong
process. The diffserv WG should go back and fix the
immutability problem they created.
Tony
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