Re: draft-ietf-multi6-multihoming-requirements-03

[Brian E Carpenter <brian@hursley.ibm.com>]

I think "class of traffic" would certainly include diffserv codepoints as well
as (or instead of) protocol numbers. If traffic has been classified by a diffserv
classifier before it hits the multihoming logic, that could imply that the source
and/or destination address helped to determine the diffserv codepoint and hence 
the multihoming policy.

Are you suggesting any change to the text?

   Brian 

Dave Wilson wrote:
> 
> >    Would anyone like to comment on draft-ietf-multi6-multihoming-requirements-03?
> 
> Question about sections 3.1.2-3.1.4.
> 
> During the discussions on global-v6, a scenario came up that caused trouble.
> 
> Imagine network A does not (under current RIR rules) qualify for a /35.
> Network A has routes to network B via (a) a high speed direct connection,
> (b) a high-speed network and (c) an ordinary commodity internet connection.
> Network A provides connectivity to a number of sites (< 200) not under its
> direct control.
> 
> In IPv4, where Network A has an ASN and allocation from a RIR, BGP localprefs
> enforce a routing policy which uses the high-speed connects in preference to
> the commodity internet.
> 
> Does section 3.1.4 require a solution to this scenario? "class of traffic"
> might just mean a protocol or could be wider, so I am not sure.
> 
> The reason I bring this up is that it is not an unusual configuration for a
> national research network. If the answer is "no" then it is not necessarily
> a problem with the document :) but if the group [does|does not] plan to
> address it, I think it would be useful feedback for the policy groups.
> 
> Best regards,
> Dave
> 
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