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

From: "Brian F. G. Bidulock" <[email-masked]>
Date: Thu, 6 Sep 2001 07:05:00 -0500

Alf,

Alf can you point to which part of RFC 2960 provides redundancy between hosts?

--brian

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

> Brian
>
> You can do the same by putting your "SCTP signaling links ending up on
> different host" in the same association. You do not need muliple association
> to do at, even if you can use it.
> 
> Alf
> 
>     
> 
> -----Original Message-----
> From: Brian F. G. Bidulock [mailto:[email-masked]]
> Sent: den 6 september 2001 13:32
> To: sigtran
> Subject: Re: [SUA issue 17 & M3UA issue #11] IPSP cases.
> Importance: High
> 
> 
> 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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