Re: (ASCEND) shared D-Channels on PRI

[Noel Johnston <noel@www2.ecis.com>]

You're probably right in that all the calls would drop although capable of
immediate redial. Can't test that right now ... our users would probably
be a bit upset with me. If I can, I'll test it during an upgarde window
next week and report back to the list.

Noel C Johnston	
EMail:		noel@yobbo.com
Telephone:	1-925-675 3050 (Work)	1-925-672 4633 (Home)
Network Consultant	San Francisco Bay Area, California, USA

On Thu, 15 Oct 1998, Phillip Vandry wrote:

> > Regards use of D-channel backup with NFAS:
> > 
> > I saw a couple of postings indicating that loss of the D-channel with NFAS
> > would bring down all the PRIs in that "group" (pardon possible lack of
> > correct terminology there)
> > 
> > We have 4 PRIs in our NFAS "group" on each of our MAX 4000s
> > 
> > 24th channel on PRI1 is set to NFAS-PRIME
> > 24th channel on PRI4 is set to NFAS-SECOND
> > 
> > This leaves us 94 (24 * 4 - 2)channels for calls. If PRI1 (or its
> > D-channel) is lost, signalling switches to 24th channel on PRI4.
> > 
> > Works as intended.
> 
> Yes, but all the calls drop anyway, despite the fact that they are
> immediately capable of redialing, don't they? At least that's what
> happens to us.
> 
> -Phil
> 

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References:

• Re: (ASCEND) shared D-Channels on PRI
• From: Phillip Vandry <vandry@mlink.net>

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