Re: [mif] draft-deng-mif-api-session-continuity-guide-02

Hi Brian

Thanks for your review this draft, inline please,

2012/7/17 Brian E Carpenter <brian.e.carpenter@gmail.com>

> Hi,
>
> If the interface changes I can understand how this works from the
> application's point of view: it discovers experimentally whether it has
> a working path via the new interface. Nothing new there, really.
>
There is small percentage of applications know about this
experimentation which lead
to some poor user experience.

>
> If the host's address changes too, I don't find the discussion in
> section 3 very helpful. Saying that the application ought to be able
> to handle this really says nothing. And of course there are other
> approaches possible, by having either the transport layer or the
> network layer handle it. We have at least three existence proofs for
> such solutions (SCTP, MPTCP and shim6). They all need tweaking for the
> case of a brand-new address being added, and 6renum needs that tweak
> too.
>
Application use MIF api to handel this is useful information for the
application.
and section 4 and 5 clarify detail how to help this. today many
OS/connection manager's
concrete API already provide such MIF API, if use those API, it really help
applications.

SCTP/MPTCP/shim6 are more adding additional intelligent to Mobile/OS, the
document
discussed here could work together with MIF/CM API by not tweaking the OS
stack

> A related point is that load balancers at the server end are part
> of the problem too, if you want to preserve sessions across a
> re-addressing event.
>
this document doesn't talk about load balancer, because re-connect means a
create a new session
which load balance will treat this is a normal new session without need to
keep the state.

Thanks  again for the discussion

Best regards,

-Hui

> I think section 3 is just the tip of a very complicated iceberg.
>
> Regards
>    Brian
>
>
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