[asterisk-users] HDLC Bad FCS (8) on Primary D-channel

[Gareth Blades]

Basically it means that one of the messages it received on the PRI D 
channel failed the checksum.

I take it that in your span command you have 'crc4' or similar specified 
as an option for all of your spans?

If thats the case its probably a faulty port on the card, cable, or a 
card in the local telephone exchange,

Olivier wrote:
> Hello,
> 
> I've got a running system in which logs are full of messages such as:
> [Jun 10 07:24:14] NOTICE[2414] chan_dahdi.c: PRI got event: HDLC Bad FCS 
> (8) on Primary D-channel of span 2
> 
> The strange thing is those messages are coming from a single span.
> 
> My setup is :
> 
> Asterisk 1.6.1.18
> Junghanns OctoBRI
> with wcb4xxp driver
> libpri 1.4.10.2
> dahdi 2.3.0
> 3 BRI lines in PtMP mode
> 
> 
> What does this "PRI got event: HDLC Bad FCS (8) on Primary D-channel of 
> span 2" roughly mean ?
> Why could it happen on a single port and not on the others ?
> 
> Regards
>