Subject: Re: [SUA issue 17 & M3UA issue #11] IPSP cases.

From: "Brian F. G. Bidulock" <[email-masked]>
Date: Thu, 6 Sep 2001 06:31:55 -0500

Alf,

Changeover and changeback also occur between linksets of a combined linkset
and even between combined linksets.  There is no restriction in SS7 to
connecting all linksets at a signalling point to one "host", as there is
with an SCTP association.  Each link in a linkset can be attached to a
different "host" and in many implementations this is the case.  MTP handles
changeover between multiple "hosts" in that it handles changeover between
multiple processors each handling one or several links of a linkset.  SCTP
does not support this.  SCTP has problems supporting M2PA.

--brian

On Thu, 06 Sep 2001, Alf Heidermark (UAB) wrote:

> Brian 
> 
> With the change over change back procedure you just have another routing of
> the message to the same host (point code), you do not change host (point
> code). These type of requiremnents is already covered by SCTP as Javier very
> well pointed out.
> 
> Alf
> 
> -----Original Message-----
> From: Brian F. G. Bidulock [mailto:[email-masked]]
> Sent: den 6 september 2001 13:14
> To: sigtran
> Cc: [email-masked]
> Subject: Re: [SUA issue 17 & M3UA issue #11] IPSP cases.
> Importance: High
> 
> 
> Alf,
> 
> Changeover and Changeback procedures.  See Q.704 Clause 5 and 6.
> Take special note of "Processor Outage" procedures.
> 
> --brian
> 
> On Thu, 06 Sep 2001, Alf Heidermark (UAB) wrote:
> 
> > 
> > Brian can you point to which part of MTP that provides redudancy between hosts.
> > 
> 
> -- 
> Brian F. G. Bidulock
> [email-masked]
> http://www.openss7.org/
> 
> 
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-- 
Brian F. G. Bidulock
[email-masked]
http://www.openss7.org/

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