[nemo] RO between MR and CN

[Tânia Pinto Calçada <[e-mail]>]

Hello,

 

I am interested in route optimization between the MR and the CN. I read
the taxonomy draft (draft-thubert-nemo-ro-taxonomy-02.txt), and several
other documents related to RO:

draft-jeong-nemo-ro-ndproxy-02.txt

draft-leekj-nemo-ro-pd-02.txt

draft-na-nemo-gen-ro-model-00.txt

draft-na-nemo-path-control-header-00.txt

draft-wakikawa-nemo-orc-00.txt

ROProblem.txt

 

I also read some threads of the NEMO mailing list
<http://www1.ietf.org/mail-archive/web/nemo/current/index.html>
http://www1.ietf.org/mail-archive/web/nemo/current/index.html, however I
am still looking for a document that describes a solution for the RO
between the MR and the CN. 

 

The taxonomy draft says at section 2:

“A major issue with this form of optimization is that the end-to-end

   principle of the MIPv6 Reverse Routability (RR) test is broken.  The

   RR test is meant to ensure the care-of address (CoA) and the home

   address (HoA) are collocated. With a mobile network, when the MR

   performs RO on behalf of the MNNs, the CoA in BU will be the MR's

   CoA.  Thus, a MNN is reachable via the CoA, but not at the CoA.

 

   Some tricks may be performed on the fly by the MRs but it seems that

   a clean MR-to-CN optimization for Nemo will impact the CN function.”

 

Can somebody point the “tricks” that may be performed, or indicate a
document that explores this subject?

 

Regards,

Tania Calcada