<p>Check transmission for faults. Do you get BAD FCS HDLC abort? Check for the line error, code violation etc from dahdi maint tool</p>
<p>-Vashkar </p>
<div class="gmail_quote">On Feb 15, 2012 1:04 PM, "Bharat Lalcheta" <<a href="mailto:bharatlalcheta@gmail.com">bharatlalcheta@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>Thanks for reply.</div><div>Telco enabled crc and first server working fine on it.<br><br></div><div class="gmail_quote">On Wed, Feb 15, 2012 at 12:24 PM, Vashkar Chatterjee <span dir="ltr"><<a href="mailto:vashkar@gmail.com" target="_blank">vashkar@gmail.com</a>></span> wrote:<br>
<blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><p>Checm if telco had crc enabled or not. If not turn off crc</p>
<div class="gmail_quote"><div><div>On Feb 15, 2012 12:45 PM, "Bharat Lalcheta" <<a href="mailto:bharatlalcheta@gmail.com" target="_blank">bharatlalcheta@gmail.com</a>> wrote:<br type="attribution">
</div></div><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div><div>
<div>Hii,</div><div> </div><div>I have 2 servers with dual core 3 GHz dual cpu with 2 GB RAM and having 2 * TE410P digium, total 8 port for inbound calling.</div><div> </div><div>using asterisk-1.6.2.9, dahdi-2.5, libss7 SVN latest version</div>
<div> </div><div>Both server has same setup, 8 E1's with 2 Signalling channels from same telco.</div><div> </div><div>follwoing is chan_dahdi.conf</div><div> </div><div>[channels]<br>group=0<br>linkset = 1<br>signalling = ss7<br>
ss7type = itu<br>ss7_called_nai=national<br>ss7_calling_nai=national<br>context=ivrs<br>pointcode = 2<br>adjpointcode = XXXXX<br>defaultdpc = XXXXX<br>networkindicator=national</div><div>sigchan = 16<br>cicbeginswith=1<br>
channel = 1-15</div><div>cicbeginswith = 17<br>channel = 17-31</div><div>sigchan = 47<br>cicbeginswith = 33<br>channel = 32-46</div><div>cicbeginswith = 49<br>channel = 48-62</div><div>cicbeginswith = 65<br>channel = 63-93<br>
cicbeginswith = 97<br>channel = 94-124</div><div>cicbeginswith = 129<br>channel = 125-155</div><div>cicbeginswith = 161<br>channel = 156-186</div><div>cicbeginswith = 193<br>channel = 187-217</div><div>cicbeginswith = 225<br>
channel = 218-248<br></div><div>following is the system.conf</div><div> </div><div>span=1,1,0,ccs,hdb3,crc4<br>bchan=1-15,17-31<br>mtp2=16</div><div>span=2,2,0,ccs,hdb3,crc4<br>bchan=32-46,48-62<br>mtp2=47</div><div>span=3,3,0,ccs,hdb3,crc4<br>
bchan=63-93</div><div>span=4,4,0,ccs,hdb3,crc4<br>bchan=94-124</div><div>span=5,5,0,ccs,hdb3,crc4<br>bchan=125-155</div><div>span=6,6,0,ccs,hdb3,crc4<br>bchan=156-186</div><div>span=7,7,0,ccs,hdb3,crc4<br>bchan=187-217</div>
<div>span=8,8,0,ccs,hdb3,crc4<br>bchan=218-248</div><div>span=9,9,0,ccs,hdb3,crc4<br>bchan=249-279</div><div>span=10,10,0,ccs,hdb3,crc4<br>bchan=280-310</div><div>span=11,11,0,ccs,hdb3,crc4<br>bchan=311-341</div><div>span=12,12,0,ccs,hdb3,crc4<br>
bchan=342-372</div><div>loadzone = in<br>defaultzone = in<br></div><div> </div><div>Now one server working fine with 8 E1s in regular or heavy traffic of inbound. </div><div> </div><div>But in second server, its giving following warning at every 8-10 minutes</div>
<div>[Feb 15 12:04:52] WARNING[13950] chan_dahdi.c: MTP2 link down (SLC 1)<br>[Feb 15 12:04:52] WARNING[13950] chan_dahdi.c: MTP2 link down (SLC 0)<br></div><div>Also when traffic is high, i.e. more than 220-230 calls, suddenly all calls get disconnected at same time. No other warning or error at that time, only above MTP2 link down message there. No flactuation in E1 media at my side or telco side.</div>
<div> </div><div>Please guide me to solve above problem.</div><div> </div><div> </div><div>Bharat Lalcheta<br>
</div>
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