Re: [grobj] Referral definition and its purpose?

["Dan Wing" <[e-mail]>]

 

> -----Original Message-----
> From: Keith Moore [mailto:[e-mail]] 
> Sent: Wednesday, May 26, 2010 9:23 PM
> To: Dan Wing
> Cc: 'Sheng Jiang'; [e-mail]
> Subject: Re: [grobj] Referral definition and its purpose?
> 
> 
> 	The definition of referral should be tightened up slightly
> 	that the parties are exchanging the information via one
> 	channel (e.g., SIP signaling) but want to communicate (as)
> 	directly (as possible) with each other *not* using that 
> 	channel. 
> 
> that's certainly one case.  another case is when parties A 
> and B exchange information about how either A or B can 
> contact one or more other parties.

Two party case is easier to understand and conceptualize.
This covers a *huge* number of important cases.

Then, in a later section number of the same document, we
can explain 3 party case.

> also, the referred-to path doesn't have to be more direct 
> than the path over which the referral is taking place. 

Sure.

But my point is that it is a *different* path than the
signaling path.   I agree the path could be longer and 
could go around the moon - twice.

Do you have a better way to represent that in ASCII that
gets the point across?  Picture worth a thousand words
and all..

-d

> say, 
> for instance, the initial exchange between A and B is taking 
> place using an ephemeral address for B.  B might like to 
> inform A of a more stable and/or more reachable address for 
> itself, so that in the future A could contact B at the 
> "better" address.  however the more stable/reachable address 
> for B might conceivably even be via some sort of tunnel (e.g. 
> mobileIP).
> 
> Keith
> 
> 
> 
>