Re: SUA: Message distribution among Load Shared ASPs (IPSP case)

"Brian F. G. Bidulock" <[email protected]> Thu, 29 Jun 2006 03:42:00 -0600

Newsgroups	gmane.ietf.sigtran
Organization	http://www.openss7.org/
Message-ID	<[email protected]>

Saurabh,

Saurabh Jain wrote:                              (Thu, 29 Jun 2006 13:35:52)
> 
>    Hi Brian,
> 
> 
> 
>    I  would like to understand your comment that TID/DRN label mechanisms
>    are broken.

They cannot work in the multiple SG as STP scenario, cannot support
relay, requires modification to the SCCP or TCAP stack, has no error
recovery mechansims, can easily be specified in a logically impossible
configuration (that cannot be detected by the SG), requires paritioning
of a scarce numbering space (i.e. cannot scale), breaks TCAP error
recovery mechanisms, and a host of other reasons.

> 
>    Can you please share the reason for this.

See "SUA-09: SCCP Connections and TCAP Transactions" from Jan 2002.
See "SUA v16: TID and DRM labels" from Feb 2004.

>    The latest SUA implementor guide
>    draft-ietf-sigtran-sua-implementor-guide-03.txt   is  still containing
>    section which provides clarifications on TID and DRN label.

And it contains neither change.
See "Clarification on TID" from Oct 2005.

--brian

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