[asterisk-ss7] Libss7

Laura Maurizi lauramaurizi at gmail.com
Thu Nov 17 21:20:54 CST 2022 

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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