[asterisk-ss7] Debugging Line Errors

[Russ Meyerriecks]

Hassan,
  You can use the "dahdi_maint" tool in dahdi-tools to check line/bit/crc errors.

Russ Meyerriecks
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
direct: +1 256-428-6025
Check us out at: www.digium.com & www.asterisk.org

----- Original Message -----
From: "Nyamul Hassan" <nyamul at gmail.com>
To: asterisk-ss7 at lists.digium.com
Sent: Friday, August 5, 2011 4:18:50 AM
Subject: Re: [asterisk-ss7] Debugging Line Errors


Thanks Bipin. Is there a way to check the line / bit / crc error codes? Usually routers have a means of seeing that. Even Sangoma exposes such information through wanpipe tools. So, I was searching for something similar from Digium. Are there any? 


Regards 
HASSAN 



On Fri, Aug 5, 2011 at 15:09, bipin singh < bipinraghuvanshi at gmail.com > wrote: 


Hi , 
May be CRC4 issue check it . 



On Sat, Jul 30, 2011 at 2:23 PM, Nyamul Hassan < nyamul at gmail.com > wrote: 





Hi, 


We are getting the following errors from time to time: 




NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
WARNING[32196]: app_dial.c:1328 wait_for_answer: Unable to write frametype: 2 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
WARNING[32261]: app_dial.c:1328 wait_for_answer: Unable to write frametype: 2 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Abort(6) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Abort(6) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Bad FCS(8) on span 1/0 
NOTICE[29077]: chan_dahdi.c:3312 my_handle_link_exception: SS7 got event: HDLC Abort(6) on span 1/0 
WARNING[32264]: app_dial.c:1328 wait_for_answer: Unable to write frametype: 2 




What I've read over this mailing list and elsewhere, it is mostly due to a hardware error. 


Is there a way to check the hardware errors? Like, to see the line error, bit error, crc error of the E1 line? That would help us in debugging transmission related issue. 


Regards 
HASSAN 



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-- 
BIPIN RAGHUVANSHI 
OPERATION HEAD 
ASTERISK (DEVELOPMENT AND RESEARCH) 
WWW.EHORIZONS.IN 
011-32323262 
011-46334633 

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