[asterisk-users] Issues with dahdi show status output (and check IRQs)

[Olivier]

2011/12/9, giovanni.v <iax at keybits.org>:
> Il 09/12/2011 17.11, Olivier ha scritto:
>>>> 2. On a more general plan, is taking down layer 1 on idling spans
>>>> >>  something PBXs are negociating with each other (the public switch
>>>> >>  trying to take the layer one down, listening to an acknowledge
>>>> >>  from the private PBX) or is it more brutal than that ?
>>> >
>>> >  Not that I'm aware of, but I could be mistaken.
>> Is it correct to think that Point-to-Point BRI is not (or less) prone
>> to this phenomenon ?
>
> Yes, assuming no hardware/configuration problems this shouldn't happen
> on PTP.
>
>> Point-to-Point BRI mode is
>> that it mimics PRI in that a single D-channel concentrates signalling
>> for several BRI lines.
>
> No, every BRI handle signalling in it's own D channel.
>

Can you explain why taking down layer 1 on idling spans happens on
PtmP and can't happen on PTP ?


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