[asterisk-ss7] Libss7

Wed Nov 23 06:35:17 CST 2022

Hello,

1st check the cables, if you make a loop on your connection - does it clear
alarm, both - loop in your Digium Card - should affect the green light
indicator, then psychical loop towards your partner - he also should
acknowledge on clearing the alerts.
Those are baby steps - then - you check the clock, then - you must agree on
SS7/C7 connection details, starting from time slots as "0" is considered
"1" on some systems.

Anyway - this technology is rather obsolete now and even finding a
good signalization analyzer or even a E1/T1 connection analyzer (low level
link - layer 2 i would say) is hard to find and rather expensive.

You must be aware that - 4 electrical lines in cables are being used and
every single one of them needs to be good (this is not ethernet, you can't
mix pairs...)

śr., 23 lis 2022 o 13:28 Storer, Darren <darren.storer at gmail.com>
napisał(a):

> Definitely check whether signalling is actually on TS16 - quite often it
> can be on TS1 when working with Siemens EWSD.
>
> Regards
>
> Darren
>
>
> On Mon, 21 Nov 2022 at 13:44, Kaloyan Kovachev <kkovachev at varna.net>
> wrote:
>
>> Your link is misaligned. Check the configuration on the other side - it
>> should provide the master clock according to your system.conf
>>
>> На 2022-11-19 04:20, Laura Maurizi написа:
>>
>> > Thanks for your time. I have put sigchan after the group definition,
>> > but the result was the same. I notice in the logs (before and after the
>> > modification you suggested) the following message:
>> > Huh?! chan_dahdi.c: [11] Huh?! Got FISU in link state 1. I've searched
>> > the web but I couldn't find the meaning of this message.
>> >
>> > El vie, 18 nov 2022 a las 8:40, Kaloyan Kovachev
>> > (<kkovachev at varna.net>) escribió:
>> >
>> >> Hello,
>> >> put sigchan after the group definition:
>> >>
>> >> group=1
>> >> cicbeginswith=1
>> >> channel => 1-15
>> >> cicbeginswith=17
>> >> channel => 17-31
>> >> sigchan=16
>> >>
>> >> for now remove the slc line and check the configuration on the other
>> >> side: if it is configured to use different slc, then add it before
>> >> sigchan
>> >>
>> >> На 2022-11-18 05:20, Laura Maurizi написа:
>> >>
>> >>> I have a Digium TE122 whith one span connected to Siemens switch. As
>> >>> I
>> >>> got the message "ERROR[20309] chan_dahdi.c: [1] Received message for
>> >>> slc 0x1, but we are 0x0.  Dropping" I changed slc to 1 in
>> >>> chan_dahdi.conf. But now I get this message; "ERROR[20309]
>> >>> chan_dahdi.c: [1] Q707 T1 timer expired 2nd time on link SLC: 0 PC:
>> >>> 10". The operating system is debian 11, asterisk version is 16.29.0,
>> >>> dahdi version is dahdi-2.11.1.0.20170917~dfsg-7.4.
>> >>> This is the result I get with ss7 show linkset 1:
>> >>> SS7 flags: 0x9
>> >>> SS7 linkset 1 status: Down
>> >>> SS7 calling nai: -1
>> >>> SS7 called nai: -1
>> >>> SS7 nationalprefix: 0
>> >>> SS7 internationalprefix: 00
>> >>> SS7 unknownprefix:
>> >>> SS7 networkroutedprefix:
>> >>> SS7 subscriberprefix:
>> >>> Switch type: ITU
>> >>> Our point code: 20
>> >>> SLS shift: 0
>> >>> numlinks: 1
>> >>> numsps: 1
>> >>> ---------------------------------
>> >>> Adjacent SP PC: 10 STATE: DOWN
>> >>> TRA:      T19: not running T21: not running
>> >>> Routes:
>> >>> DPC       State        T6       T10
>> >>> Link ADJ_PC:SLC: 10:1 NetMngSLS: 0
>> >>> State:      INSERVICE,  DOWN
>> >>> STD Test:  failed
>> >>> Got, sent :
>> >>> Inhibit:
>> >>> Changeover: NO
>> >>> Tx buffer:  0
>> >>> Tx queue:   0
>> >>> Retrans pos 0
>> >>> CO buffer:  0
>> >>> CB buffer:  0
>> >>> Last FSN:   0
>> >>> MTP3timers: Q707_T1(1s)
>> >>>
>> >>> This is the message I get in the log:
>> >>> [Nov 10 06:39:05] ERROR[20525] chan_dahdi.c: [1] Q707 T1 timer
>> >>> expired
>> >>> 2nd time on link SLC: 1 PC: 10
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] Len = 20 [ 91 87
>> >>> 11
>> >>> 81 0a 00 05 00 11 a0 32 35 36 34 32 38 36 32 38 38 ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] FSN: 7 FIB 1
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] BSN: 17 BIB 1
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] >[10:1] MSU
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] [ 91 87 11 ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] Network Indicator:
>> >>> 2
>> >>> Priority: 0 User Part: STD_TEST (1)
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] [ 81 ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] OPC 20 DPC 10 SLS
>> >>> 0
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] [ 0a 00 05 00 ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] H0: 1 H1: 1
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] [ 11 a0 32 35 36
>> >>> 34
>> >>> 32 38 36 32 38 38 ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] Len = 3 [ 91 87 00
>> >>> ]
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] FSN: 7 FIB 1
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] BSN: 17 BIB 1
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1] >[10:1] FISU
>> >>> [Nov 10 06:39:05] VERBOSE[20525] chan_dahdi.c: [1]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] Len = 20 [ 91 88
>> >>> 11
>> >>> 81 0a 00 05 00 11 a0 32 35 36 34 32 38 36 32 38 38 ]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] FSN: 8 FIB 1
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] BSN: 17 BIB 1
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] >[10:1] MSU
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] [ 91 88 11 ]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] Network Indicator:
>> >>> 2
>> >>> Priority: 0 User Part: STD_TEST (1)
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] [ 81 ]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] OPC 20 DPC 10 SLS
>> >>> 0
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] [ 0a 00 05 00 ]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] H0: 1 H1: 1
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1] [ 11 a0 32 35 36
>> >>> 34
>> >>> 32 38 36 32 38 38 ]
>> >>> [Nov 10 06:39:09] VERBOSE[20525] chan_dahdi.c: [1]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] Len = 14 [ 88 92
>> >>> 0b
>> >>> 85 14 80 02 10 01 00 17 01 01 0e ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] FSN: 18 FIB 1
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] BSN: 8 BIB 1
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] <[10:1] MSU
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 88 92 0b ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] Network Indicator:
>> >>> 2
>> >>> Priority: 0 User Part: ISUP (5)
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 85 ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] OPC 10 DPC 20 SLS
>> >>> 1
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 14 80 02 10 ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] CIC: 1
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 01 00 ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] Message Type:
>> >>> GRS(0x17)
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 17 ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] --VARIABLE LENGTH
>> >>> PARMS[1]--
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] Range and status:
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] Range: 14
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1] [ 01 0e ]
>> >>> [Nov 10 06:39:12] VERBOSE[20525] chan_dahdi.c: [1]
>> >>> [Nov 10 06:39:12] ERROR[20525] chan_dahdi.c: [1] Got ISUP message on
>> >>> link while MTP3 state is not UP!
>> >>>
>> >>> I attatch the configuration files.
>> >>> Thanks in advance.
>>
>> --
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