Re: draft-wang-6man-flow-label-reflection

[Jeroen Massar <[e-mail]>]

On 2014-11-15 02:05, Aijun Wang wrote:
> Hi, Jeroen:
> 
> Service Provider wants to apply the same policy to the upstream and
> downstream of one session, or more accurately, apply the policy to
> downstream of one session based on the recognition of it upstream packet.
>
> The flow label can be used to identify the unique session between one pair
> of IPv6 hosts, and alleviate the burden for the network device to recognize
> the downstream packet, for example, http response packet. We think this is
> one appropriate use case for the flow label.

The Flow Label as defined tells you nothing about the contents of the
flow. Hence nothing to prioritise on there. You will still have to look
at the typical five tuple and likely deeper when everything is just
going to look like HTTP.

Oh, and IPv6 Errors (ICMPv6) are part of that flow, but the Flow Label
will not include those.

And as you say "Service Provider" though, sounds like you are opening
that can of worms called Net Neutrality.

Greets,
 Jeroen