2010/7/8 Xianghan Zheng <[email protected]>

>     " One or more Node-IDs which MUST be cryptographically random
>      [RFC4086].  Each MUST be chosen by the enrollment server in such a
>      way that they are unpredictable to the requesting user.  Each is
>      placed in the subjectAltName using the uniformResourceIdentifier
>      type and MUST contain RELOAD URIs as described in Section 13.13
>      and MUST contain a Destination list with a single entry of type
>      "node_id"."
>
> That means, the source ([email protected]), who wants to send INVITE to
> destination ([email protected]), needs to first ask enrollment server "what
> is the ID of the destination?", and then sends out the request to the
> overlay?"


No. You publish your mapping in the overlay.



>        RELOAD is about arranging for a channel to teh peer over which SIP
> can then
>        flow. It doesn't seem to me that that subsumes most of SIP but YMMV.
>
> Yes, i agree. However, what i means is: SIP message in the upper layer
> looks useless in the connection (It might be easier for interworking or
> adopt with SIP UA.)  For example, SIP protocol have a Via header, recording
> the intermediate routes. In RELOAD solution, this "via" header would be
> empty. And all the functions are migrated into the P2P layer.
>
> Sorry if i understand wrong.
>

There's a lot more to SIP than routing.

-Ekr


> Regards,
> Xianghan
> ________________________________________
> 发件人: Eric Rescorla [[email protected]]
> 发送时间: 2010年7月6日 18:40
> 收件人: Xianghan Zheng
> 抄送: [email protected]
> 主题: Re: [P2PSIP] ID generation and P2P layer function questions
>
> 2010/7/6 Xianghan Zheng <[email protected]>:
> > Hi All,
> >
> > I get questions when i quick review RELOAD v8 proposals:
> >
> > (1) RELOAD mention that central enrollment server is used for the
> generation
> > of Node-ID (Section 3.5.2), However, it looks not mention how it
> > is calculated. By hashing the SIP URI? Or random assignment?
>
>
> " One or more Node-IDs which MUST be cryptographically random
>      [RFC4086].  Each MUST be chosen by the enrollment server in such a
>      way that they are unpredictable to the requesting user.  Each is
>      placed in the subjectAltName using the uniformResourceIdentifier
>      type and MUST contain RELOAD URIs as described in Section 13.13
>      and MUST contain a Destination list with a single entry of type
>      "node_id"."
>
>
> > (2) Can i understand RELOAD proposal is 95% P2P functions and with a
> little
> > bit 5% SIP usage, since most of the functions originally designed in SIP
> > protocol have been migrated into P2P layer.
>
> I don't really know what that means.
>
> RELOAD is about arranging for a channel to teh peer over which SIP can then
> flow. It doesn't seem to me that that subsumes most of SIP but YMMV.
>
> -Ekr
>
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