[Asterisk-Users] ZapHFC cards not maintaining sync?!

[Remco Barende]

On Sat, 3 Dec 2005, Francesco Peeters (Asterisk) wrote:

> On Sat, December 3, 2005 16:40, Francesco Peeters (Asterisk) said:
>> On Fri, December 2, 2005 22:54, Francesco Peeters said:
>
>> Watching the console for a while I see regular messages, which I could
>> also find in /var/log/messages:
>> Dec  3 16:37:15 asterisk1 kernel: zaphfc[0]: received d channel frame with
>> bad CRC.
>> Dec  3 16:37:36 asterisk1 kernel: zaphfc[0]: empty HDLC frame received.
>> Dec  3 16:37:36 asterisk1 kernel: zaphfc[0]: received d channel frame with
>> bad CRC.

This is not normal. Run the florz patch over your bristuff install (I'm 
assuming you are using bristuff).  These problems will cause your box to 
hang after anything beteen 5 and 48 hours.

>> Can anyone with one or more HFC-PCI card(s) (esp. in The Netherlands)
>> check if they see these on a regular basis as well? (And I am talking many
>> times an hour here!)

I am in NL :)

> 1) Every 10 seconds (!!!!) the D channel gets torn down, which
That's too slow, it should happen about every 1-2 seconds or so. The d 
channel going down and up again is normal behaviour.

> 2) Results in the CRC error, which means that
> 3) Every 3 minutes, the D channel goes down for EXACTLY 1 minute.

> I could try to get the KPN to give me a permanent D channel, but are there
> any tricks to try that would/could make asterisk somehow keep up the D
> channel?...

Good luck with our Royal Dutch KPN, but I would try florz first :)