[asterisk-users] DAHDI 2.4.0 produces HDLC errors with echo canceler

[James Lamanna]

On Mon, Nov 29, 2010 at 10:02 AM, Shaun Ruffell <sruffell at digium.com> wrote:
> On 11/27/2010 11:03 AM, James Lamanna wrote:
>> Hi,
>> After upgrading to DAHDI 2.4.0 from Zaptel, I noticed a lot of HDLC
>> errors on my console:
>> [Nov 27 01:15:09] NOTICE[2743] chan_dahdi.c: PRI got event: HDLC Bad
>> FCS (8) on Primary D-channel of span 1
>> [Nov 27 01:15:09] NOTICE[2743] chan_dahdi.c: PRI got event: HDLC Abort
>> (6) on Primary D-channel of span 1
>>
>> These errors prevented calls from being made and received on my PRI spans.
>>
>> This seems similar to bug 15498:
>> https://issues.asterisk.org/view.php?id=15498
>> Which says this was fixed in 2.2...so maybe it got back into 2.4?
>>
>> I can get rid of the errors by disabling the mg2 echo canceler in
>> /etc/dadhi/system.conf.
>
> Do you have a hardware echocan module installed on your card?  If so,
> it's strange indeed that the error goes away when you disable mg2.
>
> What is the complete output of your /etc/dahdi/system.conf?

Nope,
No h/w echo canceler on this card.
Here's system.conf:

span=1,1,0,esf,b8zs
# termtype: te
bchan=1-23
dchan=24

# Global data

loadzone	= us
defaultzone	= us

-- James



>
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> Shaun Ruffell
> Digium, Inc. | Linux Kernel Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
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