[asterisk-users] Asterisk 10/1.6.1 and Dahdi/Libpri compatilities in BRI /PtmP

Richard Mudgett rmudgett at digium.com
Tue Jun 26 10:45:11 CDT 2012


> > This is the option I will try.
> > I'll report my findings here.
> 
> My findings, after setting layer1_presence=ignore in chan_dahdi.conf
> are :
> 
>   == Starting D-Channel on span 1
>   == Starting D-Channel on span 2
>   == Primary D-Channel on span 1 up
>   == Primary D-Channel on span 2 up
> foo*CLI> pri show spans
> PRI span 1/0: Up, Active
> PRI span 2/0: In Alarm, Down, Active
> foo*CLI> pri show spans
> PRI span 1/0: In Alarm, Down, Active
> PRI span 2/0: Down, Active
> foo*CLI> pri show spans
> PRI span 1/0: Down, Active
> PRI span 2/0: Down, Active
> foo*CLI> pri show spans
> PRI span 1/0: Down, Active
> PRI span 2/0: Down, Active
> 
> 
> So basically, "pri show spans" still reports lines being down, though
> they are not.

The "pri show spans" command is not useful for PTMP lines if the *telco*
brings layer 2 and layer 1 down while idle.  These lines really are down.
The *only* difference between an unplugged line and layer 1 being down is
that they come back up on demand.

Richard



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