Re: SUA: Relay: SG-SG

Hello Howard,

I assume in your sequence diagram there are two different SGPs (SGP1 and SGP2).

I think this traffic scenario is very natural and useful, but current
text in the RFC 3868 does not allow it.

For instance DAUD cannot be sent from an SGP. Another problem is that
SGPs cannot talk to each other using SUA protocol. SGP - SGP
communication is left implementation dependent, and it does not matter
whether they serve the same or different SGs.

these are my two cents

Regards

Ilie

On 2/17/06, May, Howard <[email protected]> wrote:
> Brian,
>
> I would value some clarification of the SUA, SGP - SGP interface
> required for relay mode.  If I have got the message flow shown below
> incorrect please can you correct it for me.
>
> If the message flow is correct then would it be valuable to include it
> in the implementers guide.
>
> Regards
>
> Howard May
>
>
> ________________________________
>
>        From: [email protected] [mailto:[email protected]]
> On Behalf Of May, Howard
>        Sent: 15 February 2006 14:57
>        To: [email protected]
>        Subject: [Sigtran] SUA: Relay: SG-SG
>
>
>
>        Gentlemen,
>
>        Having reviewed Decembers discussion of Relay functionality, I
> would like to ask you to review the following message flow and ask for
> your comments.
>
>
>
>        ASP1                 SGP                   SGP
> ASP2
>        AS1(PC10)
> AS2(PC100)
>
>         --UP/Activate-->
> <--UP/Activate--
>                                ----DAUD(PC100)-->
>                                <---DAVA(PC100)---
>
>                                <---DAUD(PC10)----
>                                ----DAVA(PC10)--->
>         ---DAUD(PC100)-->
>         <--DAVA(PC100)---
>                                                        <--DAUD(PC10)---
>
>                                                        ---DAVA(PC10)-->
>
>
>        ---CLDT(PC100)-->
>                                ---CLDT(PC100)--->
>
> ---CLDT(PC100)-->
>
>
>        Best Regards
>
>        Howard May
>
>
>
>
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--
Ilie