[asterisk-ss7] Asterisk, Taqua T7000, and you guessed it, SS7

[Paul Timmins]

1.6.1.10

As far as signaling, I created another switch in my local network 
(fLocal = LOCAL) and the settings on my SS7 node are as follows:
fAdjacent YES
nodeType REMOTE_NODE
fTransferCapability NO
L3T25_period 30000ms
L3T28_period 3000ms
L3T29_period 60000ms
allowExtraRoutesForAlias OFF

I know some of those settings can cause weirdness, most of them are 
grayed out so if yours differ, you'll have to recreate the node.

My f-link is indeed SLC 0, apolgies for implying otherwise, btw.



Bryan Scott wrote:
> I've moved the f-link to the last channel (48), but otherwise yes, it
> looks like my other SS7 links and trunk groups.  When I query the
> circuit range, I get a message on Asterisk saying something about a
> message on non-equipped CICs (CQM I think).  I'll get more details in
> a little bit (on the iPad now, not at my laptop).
>
> When I run ss7 unblock cic x xx I don't see any debug messages that
> would indicate Asterisk is sending anything.  Are you on 1.6?
>
>
> On Friday, April 30, 2010, Paul Timmins <paul at timmins.net> wrote:
>   
>> I know it works fine on 6.1 (but I think I had it working on 5.0 too?)
>>
>> I assume you have the trunk group configured like this:
>>
>> TRUNKNAME
>>        +-- Trunk-1-X-X-X (when you click on this, you see CIC 26)
>>        +-- Trunk-2-X-X-X
>> (etc)
>>        +-- Trunk-23-X-X-X (When you click on this, you see CIC 48)
>>
>> Also, when you go to ISUP in open manager and click on the point code,
>> you see the range of 00026 through 00048 on the right pane.
>>
>> Can you select all of those, right click and choose "Query Circuit
>> Range" and let me know what that says?
>>
>> -Paul
>>
>> Bryan Scott wrote:
>>     
>>> Great.  Patch seems to work on the Asterisk side.  But Asterisk (and the switch) complain if the Taqua has anything but SLC 0.  If I use SLC 0 on the T7000 the link comes up, alarms clear, but the CIC's are still unconfigured.
>>>
>>> I'm *this* close to using simple PRI circuits.
>>>
>>> And Paul, the T7000 is on 6.0.0p20.  I still need to do the isupMsgTrace that you mentioned.  This is on an LTC card.
>>>
>>> -- Bryan
>>>
>>>
>>>
>>>
>>> On Fri, Apr 30, 2010 at 7:12 PM, Nahuel Greco <ngreco at gmail.com> wrote:
>>>
>>>       
>>>> Here you have a patch attached to set the link SLC using an "slc"
>>>> directive in chan_dahdi.conf. Try it and tell me if works.
>>>>
>>>> Saludos,
>>>> Nahuel Greco.
>>>>
>>>>
>>>>
>>>> On Fri, Apr 30, 2010 at 7:01 PM, Bryan Scott <sirbryan at gmail.com> wrote:
>>>>
>>>>         
>>>>>>>>  Set your SS7 trunk to SLC 1. I couldn't make it work
>>>>>>>> on SLC 0. No idea why.
>>>>>>>>
>>>>>>>>
>>>>>>>>                 
>>>>>>> The Taqua is 1 too?  Regardless of Asterisk's setting, it shows the SLC 0.  Setting the Taqua to 1 causes the F-Link to go down and Asterisk complains.
>>>>>>>
>>>>>>>
>>>>>>>               
>>>>>> Yes. Both the taqua and the asterisk are set to SLC=1
>>>>>>
>>>>>>
>>>>>>             
>>>>> It looks like Asterisk pays no attention to the "slc" setting in chan_dahdi.conf, but instead libss7 (in ss7.c) automagically calculates the Signaling Link Code based on how many are linksets have been defined:
>>>>>
>>>>>
>>>>> /* ****************** */
>>>>> // looks like we create a new mtp2 link and autoincrement the SLC counter
>>>>>
>>>>>                m = mtp2_new(fd, ss7->switchtype);
>>>>>
>>>>>                if (!m)
>>>>>                        return -1;
>>>>>
>>>>>                m->slc = ss7->numlinks;
>>>>>                ss7->numlinks += 1;
>>>>>                m->master = ss7;
>>>>>                if (zapmtp2)
>>>>>                        m->flags |= MTP2_FLAG_ZAPMTP2;
>>>>>
>>>>>                ss7->links[ss7->numlinks - 1] = m;
>>>>>
>>>>> /* ****************** */
>>>>>
>>>>> So changed it to add one (m->slc = ss7->numlinks + 1) and I'm getting MTP2 link issues:
>>>>>
>>>>> [Apr 30 16:01:04] WARNING[19051]: chan_dahdi.c:11509 ss7_linkset: MTP2 link down (SLC 1)
>>>>> MTP2 link up (SLC 1)
>>>>> [Apr 30 16:01:06] WARNING[19051]: chan_dahdi.c:11509 ss7_linkset: MTP2 link down (SLC 1)
>>>>> MTP2 link up (SLC 1)
>>>>> [Apr 30 16:01:09] WARNING[19051]: chan_dahdi.c:11509 ss7_linkset: MTP2 link down (SLC 1)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
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>>>>>           
>>> <libss7.configure_slc.patch>--
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