> >Hi all,
> >I have some questions depending the usage of the flow
> >label field within IPv6. Background of my questioning is
> >that actually within 3GPP standardization the discussion
> >appears if the flow label could be used for bearer
> >identification if IPv6 would be chosen as transport
> >option within the UMTS Radio Access Networks.
>
=> It is also used in the GGSN (default router in IPv6 land)
as one of the options to identify a flow and make the right
QoS decisions.
The router is informed by the IPv6 node about
the flow label value for each connection.
> >- Can intermediate routers change the flow label?
> > Appendix A of RFC2460 states that hosts or routers that
> > do not support the flow label should pass the field on
> > unchanged. Is this also true for hosts or routers that
> > do support the flow label? What is the procedure if an
> > router supports flow labels but has no context about a
> > specific flow label?
>
> seems to me, no.
>
=> Agreed. Also based on my comment above I
don't think it would be a good idea.
I can't remember if it's included in the AH calculation
or not.
Hesham
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