RE: Recommendation for SUA modifications

Brian,

The ASP congestion that I am referring to is the same congestion we have
spoken about all along.  The SUA layer is detecting congestion.  I don't
think I can specify this any clearer due to the fact that congestion
detection is typically an implementation dependent feature.

The bottom line is that ASP is congested at a layer above SCTP.  What
type of text are you looking for?  Actually, I think the text in the
existing RFC is fine:

   The SUA layer at an ASP or IPSP MAY indicate local congestion to an
   SUA peer with an SCON message.

Of course if the WG decide to go with a new message, we can change it to
whatever the new message is.

Regards,
Lincoln

-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Brian F. G. Bidulock
Sent: Friday, October 14, 2005 10:08 AM
To: Haresign Lincoln
Cc: [email protected]; [email protected]; Valerie Gastaud;
[email protected]
Subject: Re: [Sigtran] Recommendation for SUA modifications

Haresign,

Haresign Lincoln wrote:
(Fri, 14 Oct 2005 09:54:17)
> Brian,
> 
> Personally, I am not tied to SCON.  Initially I asked if SCON can by 
> used for ASP congestion and you seemed to imply that it could in our 
> first exchange.  I then tried to resolve the problems with the RFC.
> 
> If you want to use the ASP Status message, I have absolutely no 
> problem with this solution and would back it 100%.  We should indicate

> in the SUA IG that SCON can not be used for ASP->SG congestion as is 
> currently stated in the RFC.

No, it is correct in the RFC.  ASP->SG SCON is used for signalling ASP
congestion: just MTP and SCCP congestion at the ASP.  These new ASPTM
would be for some type of ASP congestion that has yet to be defined.

Also, the I-G is really a place for errata, not new (or
overloaded) sets of messages with completely new procedures and new
states and state transitions.  It deserves a separate draft.

What kind of ASP congestion are you talking about, and what is its
definition?

Perhaps you could contribute the text for the description of the ASP
Congestion parameter?


--brian

--
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/

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