Matt,<br> What would be if we have a lot of Bad FCS or Abort HDLC ? It means that the message sent by the Telco are discarded ?<br><br>And, can it happen when the messages are sent from our server towards the Telco, happen this kind of error and we are not seen ?
<br><br>I have experienced with chan_ss7 that there are a lot of malformed messages in the incoming and in the outgoing to Telco, so this cause the link goes down because of too much bit error rate.<br><br><br><br>---------- Forwarded message ----------
<br><span class="gmail_quote">From: <b class="gmail_sendername">Marcelo Pacheco</b> <<a href="mailto:marcelo@falevoip.net">marcelo@falevoip.net</a>><br>Date: Nov 6, 2006 1:50 PM<br>Subject: Re: [asterisk-ss7] libss7 link quality troubles
<br>To: <a href="mailto:asterisk-ss7@lists.digium.com">asterisk-ss7@lists.digium.com</a><br><br></span>Yeah, I have a script called reasterisk:<br><br>#!/bin/bash<br>export PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin
<br>asterisk -r -x "stop when convenient"<br>rmmod wct4xxp<br>rmmod zaptel<br>modprobe wct4xxp<br>ztcfg -v<br>nice --1 open -c 10 -- asterisk -vc<br><br>It takes care of everything.<br><br>I got chan_ss7 working ok, but with frequent CRC/frame too short errors.
<br>I'm using a Version 9 TDM405P, I can't ship it back to USA as it's in<br>production for the other 2 spans.<br><br>Marcelo<br><br>> On Nov 5, 2006, at 9:04 PM, Marcelo Pacheco wrote:<br>>> Most IAM and RLC result in:
<br>>> [Nov 6 00:59:10] DEBUG[21678]: chan_zap.c:8460 ss7_linkset: Overrun<br>>> detected!<br>>><br>>><br>>><br>>> Using dchan instead of hardhdlc results in constant CRC, frame too<br>
>> short<br>>> errors on the ss7 link.<br>>><br>>><br>>> Is the current trunk bad ? I noticed core set verbose and core set<br>>> debug<br>>> isn't working properly.<br>>><br>
>> Any sugestions ?<br>><br>> I have noticed similar problems related to hardhdlc and ss7 links. I<br>> think the problem has to do with the fact that running an SS7 link is a<br>> lot more intensive than running a normal PRI, so it may not have
<br>> adequate performance in that mode to handle that type of link.<br>> However, you shouldn't have any trouble (other than an occasional HDLC<br>> blip) with running it in dchan mode. If you are, maybe one of your
<br>> sigchans is running in the old mode. Did you re-run ztcfg and/or<br>> reload the driver before you retested?<br>><br>> Matthew Fredrickson<br>><br>> _______________________________________________
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http://lists.digium.com/mailman/listinfo/asterisk-ss7</a><br>><br><br><br>--<br>Atenciosamente<br><br>Marcelo Pacheco<br>Diretor de Tecnologia e Sistemas - FaleVOIP Telecom<br>Com: (27)2127-9791<br>Cel: (27)9945-3993<br>
Fax: (27)2127-9799<br>E-mail: <a href="mailto:marcelo@falevoip.net">marcelo@falevoip.net</a><br>MSN: <a href="mailto:marcelo@falevoip.net">marcelo@falevoip.net</a> / <a href="mailto:marcelo@macp.eti.br">marcelo@macp.eti.br
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