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

[mahesh katta]

On Wed, Jun 1, 2011 at 11:36 AM, randall <randall at songshu.org> wrote:

> Hi all,
>
> After running fine for a few months now asterisk seems to hang
> frequently , still functioning but the DAHDI channels seem busy  (users
> report a busy signal when calling or being called)
>
> A reboot will allow it to run for another day or maybe 2  or 3 till the
> problem occurs again.
>
>
> running stock Asterisk 1.6.2.9-2+squeeze2 on Debian with stock kernel
> 2.6.32-5-686
>
> i get the following errors:
> pri_dchannel: PRI got event: HDLC Bad FCS (8) on Primary D-channel of span
> 2
>
>
    Your telco provider has crc on or off , that is not matching with your
server cross check with them.
and this problem solve 4 problems


> (happens on all 4 spans)
>
> and the following in dmesg:
> [ 9004.635323] NOTICE-xpd_bri: XBUS-00/XPD-01: D-Chan RX DROP: BADFCS: 252
> [ 9004.635332] NOTICE-xpd_bri: XBUS-00/XPD-01: D-Chan RX:    current
> packet[0..2]: 55 55 FC
> [ 9004.635340] NOTICE-xpd_bri: XBUS-00/XPD-01: Multibyte Drop: errno=-71
>
>
> Channel 0/1, span 1 got hangup, cause 18
>
> According to my searching on the web the last two weeks i understand
> that the first mentioned error can indicate a wrong configuration
> setting or buggy hardware.
>
> Have tried many options but the dahdi config as copied over from the
> same machine (with elastix 1.4) seems the only one that seem to work
>
> anybody has a clue?
> much appreciated
>
> some gory details below,
>
> HARDWARE:
> D201GLY2 motherboard
> usb:001/002          xpp_usb+     e4e4:1162 Astribank-modular FPGA-firmware
>
>
> DAHDI CONFIG:
>
> dahdi-channels.conf
>
> ; Span 1: XBUS-00/XPD-00 "Xorcom XPD #00/00: BRI_TE" (MASTER)
> group=0,11
> context=from-pstn
> switchtype = euroisdn
> signalling = bri_cpe_ptmp
> channel => 1-2
> context = default
> group = 63
>
> ; Span 2: XBUS-00/XPD-01 "Xorcom XPD #00/01: BRI_TE"
> group=0,12
> context=from-pstn
> switchtype = euroisdn
> signalling = bri_cpe_ptmp
> channel => 4-5
> context = default
> group = 63
>
> ; Span 3: XBUS-00/XPD-02 "Xorcom XPD #00/02: BRI_TE"
> group=0,13
> context=from-pstn
> switchtype = euroisdn
> signalling = bri_cpe_ptmp
> channel => 7-8
> context = default
> group = 63
>
> ; Span 4: XBUS-00/XPD-03 "Xorcom XPD #00/03: BRI_TE"
> group=0,14
> context=from-pstn
> switchtype = euroisdn
> signalling = bri_cpe_ptmp
> channel => 10-11
> context = default
> group = 63
>
>
> chan_dahdi.conf
>
> [channels]
> context=from-pstn
> signalling=fxs_ks
> rxwink=300              ; Atlas seems to use long (250ms) winks
> pridialplan=local
> prilocaldialplan=local
> usecallerid=yes
> hidecallerid=no
> callwaiting=yes
> usecallingpres=yes
> callwaitingcallerid=yes
> threewaycalling=yes
> transfer=yes
> canpark=yes
> cancallforward=yes
> callreturn=yes
> echocancel=yes
> echocancelwhenbridged=no
> faxdetect=incoming
> echotraining=800
> rxgain=0.0
> txgain=0.0
> callgroup=1
> pickupgroup=1
> ;Uncomment these lines if you have problems with the disconection of
> your analog lines
> ;busydetect=yes
> ;busycount=3
> immediate=no
>
>
>
> --
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-- 
Best Regards,

Mahesh Katta
*BUZZ**WORKS* Business Services Private Limited
BANGALORE | CHENNAI | HYDERABAD | MUMBAI| DELHI
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Mumbai 400069
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