[asterisk-ss7] SS7 linkset down--->working

Tue May 5 12:42:47 CDT 2009

Following config seems to be working ..

/etc/dahdi/system.conf

span=2,2,0,ccs,hdb3
bchan=32-46,48-62
mtp2=47
span=3,3,0,ccs,hdb3
bchan=63-77,79-93
#mtp2=78
span=4,4,0,ccs,hdb3
bchan=94-108,110-124

/etc/asterisk/chan_dahdi.conf looks as follows 

linkset=1

group=1

signalling=ss7

ss7type=itu

ss7_called_nai=dynamic

ss7_calling_nai=dynamic

pointcode=307

adjpointcode=7

defaultdpc=7

context=from-outside_c7

networkindicator=national_spare

cicbeginswith=1

channel => 32-46

cicbeginswith=17

channel => 48-62

cicbeginswith=32

channel => 63-77

cicbeginswith=48

channel => 79-93

cicbeginswith=63

channel => 94-108

cicbeginswith=79

channel => 110-124

sigchan = 47

When we restart Asterisk, the following message appears in the console

MTP2 link up (SLC 0)

--- SS7 Up ---

Resetting CICs 1 to 15

Resetting CICs 17 to 46

Resetting CICs 48 to 77

Resetting CICs 79 to 93

I was expecting as follows

Resetting CICs 1 to 15

Resetting CICs 17 to 31

Resetting CICs 32 to 46

Resetting CICs 48 to 63

Resetting CICs 64 to 77

Resetting CICs 79 to 93

perhaps it is OK as CICs 17 thru 46, 48 thru 77  are contiguous.

All these juggleries need to be done as when these 3 E1 trunks are connected to span 1, 2 and 3. Span 1 shows yellow/red. But the same 3 E1 trunks when moved to span 2,3 and 4 work OK. Any ideas ?

thanks, 

From: dhekial at msn.com
To: asterisk-ss7 at lists.digium.com
Date: Mon, 4 May 2009 08:56:09 -0700
Subject: Re: [asterisk-ss7] SS7 linkset down.

Hi Bipin,

Are you saying 

cicbeginswith=1
channel => 1-15
cicbeginswith=17
channel => 17-31
sigchan=16   --------------------> move this to line above channel => 1-15 
cicbeginswith=32
channel => 32-46
cicbeginswith=48
channel => 48-62
cicbeginswith=63
channel => 63-77
cicbeginswith=79
channel => 79-93

?

thanks

Date: Mon, 4 May 2009 11:15:30 +0530
From: bipinraghuvanshi at gmail.com
To: asterisk-ss7 at lists.digium.com
Subject: Re: [asterisk-ss7] SS7 linkset down.

Hi Rana 
    use sigchan=16 up to configuration on channels its work try.............

On Sun, May 3, 2009 at 9:26 PM, Rana Dhekial <dhekial at msn.com> wrote:

Hi ,

I am having problem with the first span of the Digium TE420 card. "dahdi show status" was showing span 1 as red. The SS7 linkset was up when I used span 1, 2 and 3.

Now  I have moved the three E1 trunks from ports 1, 2 and 3 to ports 2,3 and 4 respectively. And have changed the /etc/dahdi/system.conf  as follows

span=2,1,0,ccs,hdb3  <---from 1,1,0,ccc,hdb3
bchan=1-15,17-31
mtp2=16
span=3,2,0,ccs,hdb3 <---from 2,2,0,ccs,hdb3
bchan=32-46,48-62
#mtp2=47
span=4,3,0,ccs,hdb3 <---from 3,3,0,ccs,hdb3
bchan=63-77,79-93
#mtp2=78

Keeping the chan_dahdi.conf the same

linkset=1
group=1
signalling=ss7
ss7type=itu
ss7_called_nai=dynamic
ss7_calling_nai=dynamic
pointcode=3007
adjpointcode=147
defaultdpc=147
context=from-outside_c7
networkindicator=national_spare
cicbeginswith=1
channel => 1-15
cicbeginswith=17
channel => 17-31
sigchan=16
cicbeginswith=32
channel => 32-46
cicbeginswith=48
channel => 48-62
cicbeginswith=63
channel => 63-77
cicbeginswith=79
channel => 79-93

But now the SS7 linkset 1 is down.

Current status

asterisk -rx "dahdi show status"
Description                              Alarms  IRQ    bpviol CRC4   Fra Codi Options  LBO
T4XXP (PCI) Card 0 Span 1                OK      0      0      0      CAS Unk  YEL      0 db (CSU)/0-133 feet (DSX-1)
T4XXP (PCI) Card 0 Span 2                OK      0      0      0      CCS HDB3 YEL      0 db (CSU)/0-133 feet (DSX-1)
T4XXP (PCI) Card 0 Span 3                OK      0      0      0      CCS HDB3 YEL      0 db (CSU)/0-133 feet (DSX-1)
T4XXP (PCI) Card 0 Span 4                UNCONFI 0      0      0      CCS HDB3 YEL      0 db (CSU)/0-133 feet (DSX-1)

I am not sure why span 1 is shown as up where no E1 ckt is connected.  

asterisk -rx "core show version"
Asterisk SVN-trunk-r191136M built by root @ ildserver on a i686 running Linux on 2009-04-29 18:26:27 UTC

asterisk -rx "ss7 show version"
libss7 version: SVN-branch-1.0-r259M

asterisk -rx "dahdi show version"
DAHDI Version: SVN-trunk-r6529 Echo Canceller:

Did I miss something ?

thanks

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