Re: [multimob] draft-ietf-multimob-pmipv6-source-06

["Thomas C. Schmidt" <[e-mail]>]

Hi Behcet,

I'll shorten the history to make things more readable ...

On 06.01.2014 23:22, Behcet Sarikaya wrote:

>         Sec. 3.2.4
>         the multicast
>              routing information base (MRIB) of the MAG - I thought this
>         was not
>         possible? later on seems to be clarified in Sec. 4.3 & 4.4 (I mean
>         according to our face-to-face conversations in the past?)
>
>
>     In this draft, we describe the setting of an MRIB in agreement with
>     the topology of the access network. Like a unicast RIB, an MRIB can
>     of course always express a regular, topology-oriented routing
>     according to destination addresses in IP headers.
>
>     Our discussions, which also took place on the mailing list earlier
>     and in WG meetings, were concerned with policy-based PMIP routing
>     according to source addresses. This cannot be expressed in a regular
>     MRIB.
>
>
> Where did you get this from? Any references?
>

Well, the relevant part in the context of this draft is that one can 
express regular, topology-oriented routing in an access network within a 
regular routing table (unicast as well as multicast). It is 'sort of the 
core of IP routing', so I guess there is no doubt about that and a 
reference is not needed (otherwise we would need to recall the 
fundamentals of IP routing).

The other side about policy-based routing in PMIP was discussed some 
time ago, but is not mentioned in the draft. So there is no need to make 
a reference to it.

If you are interested in the discussion, I think major parts have been 
on the list about two years ago. There were contributions from Sri and 
in particular Stig provided longer explanations on what can be possibly 
done and what not.

But this is all outside the current spec (and of any spec that is 
MULTIMOB WG Item), so no need to return to it.

Cheers,

Thomas


-- 

Prof. Dr. Thomas C. Schmidt
° Hamburg University of Applied Sciences                   Berliner Tor 7 °
° Dept. Informatik, Internet Technologies Group    20099 Hamburg, Germany °
° http://www.haw-hamburg.de/inet                   Fon: [phone] °
° http://www.informatik.haw-hamburg.de/~schmidt    Fax: [phone] °