[asterisk-ss7] number of sigchans on single linkset
Abdul Basit
basit.engg at gmail.com
Mon Mar 26 10:18:48 CDT 2012
I recompiled libss7 and asterisk with
libss7-1.0.2/ss7_internal.h:#define SS7_MAX_LINKS 16
asterisk-1.6.2.10/channels/chan_dahdi.c:#define NUM_DCHANS 16
But as soon as i add 5th link, i get error
Command 'module load chan_dahdi.so' failed.
[Mar 21 16:25:28] ERROR[10641]: chan_dahdi.c:15568 linkset_addsigchan:
Unable to open SS7 sigchan 140 (No such device or address)
While with 4 signalling links its perfect.
[Mar 21 16:46:05] Loaded chan_dahdi.so => (DAHDI Telephony Driver w/SS7)
*CLI> [Mar 21 16:46:05] MTP2 link up (SLC 0)
[Mar 21 16:46:05] MTP2 link up (SLC 1)
[Mar 21 16:46:05] --- SS7 Up ---
[Mar 21 16:46:05] Resetting CICs 1 to 15
[Mar 21 16:46:05] Resetting CICs 17 to 31
[Mar 21 16:46:05] Resetting CICs 33 to 47
[Mar 21 16:46:05] Resetting CICs 49 to 63
[Mar 21 16:46:05] Resetting CICs 65 to 79
[Mar 21 16:46:05] Resetting CICs 81 to 95
[Mar 21 16:46:05] Resetting CICs 97 to 111
[Mar 21 16:46:05] Resetting CICs 113 to 127
[Mar 21 16:46:05] Resetting CICs 129 to 143
[Mar 21 16:46:05] Resetting CICs 145 to 159
[Mar 21 16:46:05] Resetting CICs 161 to 175
[Mar 21 16:46:05] Resetting CICs 177 to 191
[Mar 21 16:46:05] Resetting CICs 193 to 207
[Mar 21 16:46:05] Resetting CICs 209 to 223
[Mar 21 16:46:05] Resetting CICs 225 to 239
[Mar 21 16:46:05] Resetting CICs 241 to 255
[Mar 21 16:46:06] MTP2 link up (SLC 3)
[Mar 21 16:46:06] MTP2 link up (SLC 2)
Checking with my provider. Will update after coordination.
--
regards,
Abdul Basit
On Mon, Mar 19, 2012 at 12:16 AM, Kaloyan Kovachev <kkovachev at varna.net>wrote:
> Not sure about SIG_SS7_NUM_DCHANS, but i am using SS7_MAX_LINKS and
> SS7_MAX_ADJSPS = 8 (with 6 links actually) for over 3 years without a
> problem and as the max SLC is 4 bit it seems right to have 16 as the
> hardcodded maximum
>
> On Sun, 18 Mar 2012 22:54:20 +0500, Abdul Basit <basit.engg at gmail.com>
> wrote:
> > Kaloyan,
> >
> > Thank you for suggestion.
> > I will update and recompile asterisk. Will get back with results.
> >
> > --
> > regards,
> >
> > Abdul Basit
> >
> >
> >
> > On Sat, Mar 17, 2012 at 12:47 PM, Kaloyan Kovachev
> > <kkovachev at varna.net>wrote:
> >
> >> On Fri, 16 Mar 2012 23:25:40 +0500, Abdul Basit <basit.engg at gmail.com>
> >> wrote:
> >> > This is production machine. I found it as stable one and working fine
> >> with
> >> > me.
> >> > Moreover, I tested with latest asterisk 1.6.2.23 but this is not
> >> > solving
> >> > slc problem.
> >> >
> >> > If someone has better idea/suggestion thanks in advance.
> >>
> >> There are few hardcoded limits:
> >> in libss7
> >> ss7_internal.h SS7_MAX_LINKS 4
> >> ss7_internal.h SS7_MAX_ADJSPS 4
> >>
> >> in Asterisk 1.8 and up to trunk
> >> sig_ss7.h SIG_SS7_MAX_CHANNELS 672 (which is 1 DS3 = 28 T1 or
> >> about 22 E1)
> >> which is equal to MAX_CHANNELS in older versions
> >> sig_ss7.h SIG_SS7_NUM_DCHANS 4 (in older versions is just
> >> NUM_DCHANS)
> >>
> >> also NUM_SPANS = 32 unless you have compiled asterisk with the 'lots of
> >> spans' option in which case it is 128
> >>
> >> in short upgrading will not solve your problem - you should change the
> >> hardcoded value and recompile.
> >> In my opinion it is safe to increase them all from 4 to 16 (links,
> adjspc
> >> and dchans)
> >>
> >> >
> >> > --
> >> > regards,
> >> >
> >> > Abdul Basit
> >> >
> >> >
> >> >
> >> > On Fri, Mar 16, 2012 at 8:54 PM, Kevin P. Fleming
> >> > <kpfleming at digium.com>wrote:
> >> >
> >> >> On 03/16/2012 08:52 AM, Abdul Basit wrote:
> >> >>
> >> >>> While browsing through the code in
> >> >>>
> >> >>> asterisk-1.6.2.10/channels/**chan_dahdi.c
> >> >>>
> >> >>
> >> >> Why are you using such an old version of Asterisk?
> >> >>
> >> >> --
> >> >> Kevin P. Fleming
> >> >> Digium, Inc. | Director of Software Technologies
> >> >> Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype:
> >> >> kpfleming
> >> >> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> >> >> Check us out at www.digium.com & www.asterisk.org
> >> >>
> >> >>
> >> >> --
> >> >>
> >>
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> >> >>
> >>
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