RE: [NSIS] NSIS Mobility Issue #6 for Comments

["Seong-Ho Jeong" <shjeong at hufs.ac.kr>]

Hi Takako,

Thanks for the comments.
Please see my comments inline.

Regards,
Seong-Ho

> -----Original Message-----
> From: nsis-bounces at ietf.org [mailto:nsis-bounces at ietf.org] On Behalf Of
> Takako Sanda
> Sent: Wednesday, March 09, 2005 12:25 AM
> To: Seong-Ho Jeong; nsis at ietf.org
> Subject: Re: [NSIS] NSIS Mobility Issue #6 for Comments
> 
> Hi Seong-Ho,
> 
> > - Description: When IP-tunneling is used in the MIP-based network,
> >       it is also needed to perform the path update on the tunneling
> >       path. If the CRN is located on the tunneling path, how can the
> >       CRN be discovered for the path update? When/how to re-setup
> >       the state and remove the old state on the tunneling segment on
> >       the signaling path should also be discussed.
> 
> I think it would be related to how the NSIS state for the tunneling part
> is
> managed. I.e., which flow ID/session ID would be used for this section.
As you mentioned, the issue above is related to flow/session ID management.
For example, a new flow ID may need to be used within the tunnel while
maintaining the same session ID.  

> >       Additionally, if
> >       route optimization is used after IP-tunneling, when should the
> >       state on the tunneling path be removed?
> 
> As the triangular route is backup route of the optimized route, the
> tunneling path might need to be kept with reduced resources (though
> keeping
> backup path will cause signaling overhead).
In this case, the resource wastage should be minimized on the backup route.
In the situation where the use of the backup route is rare, resources on the
backup route should be released.

> thanks,
> Takako
> 
> 
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