Flow label/QoS

[peter dawson]

Hi 6bone :

Need some feed back on this...

It is assumed that the QoS Architecture implements
Reserved Bandwidth services, supported with a network
resource allocation on a per flow basis. Applications
requesting  for Reserved Bandwidths per-flow setup is
initiated with RSVP as the signaling protocol, or as
a hop-by-hop option in the IPv6 Header. The Flow Label field
indicates requests for special handling by routers.  Hence
once the policy function and Qos Thresholds have
been established, this would  result in preferential
scheduling treatment on the router because it would recognize
the packet as a preferred class , based on on the Flow label
option/ per flow specs.

Now..my doubt ;

1) Even though the threshold has been setup on the IPv6 router
to the aggregate flow of the outgoing interface, the IP layer
still does not know exactly where the VC is going at the
physcial layer(e.g ATM layer). Hence, how does IPv6 structure
bandwidth allocations and control call admissions ?

2) On reading RFC1883, it states that the Flow label field
is still experimental and subject to changes...as flow support
becomes clearer.  Is there any drafts / further reading
which can be refered  to get get a better understanding
on this aspect ?


Peter