Cellular Network Infrastructure » Radio Access Network » OsmoBSC

Since the coverage has increased TC_ho_int permanently failes. Surprisingly TC_ho_int stops failing when the testcase is executed a second time without restarting osmo-bsc. Only a freshly restarted osmo-bsc seems to trigger the problem.

<0008> bsc_vty.c:1577 (bts=0,trx=0,ts=1,ss=0) (ARFCN 871) --> BTS 1 Manually triggering Handover from VTY
<0007> handover_logic.c:135 SUBSCR_CONN[0x55afd26d4eb0]{ACTIVE}: Received Event HO_START
<0007> bsc_subscr_conn_fsm.c:504 SUBSCR_CONN[0x55afd26d4eb0]{ACTIVE}: state_chg to WAIT_HO_COMPL
<0007> handover_logic.c:333 SUBSCR_CONN[0x55afd26d4eb0]{WAIT_HO_COMPL}: Received Event HO_COMPL
<0007> bsc_subscr_conn_fsm.c:801 SUBSCR_CONN[0x55afd26d4eb0]{WAIT_HO_COMPL}: state_chg to WAIT_MDCX_BTS_HO
<0000> mgcp_client_fsm.c:644 MGCP_CONN[0x55afd26f0e80]{ST_READY}: Cannot MDCX, port == 0
<0007> osmo_bsc_sigtran.c:325 Tx MSC CLEAR REQUEST
<0007> osmo_bsc_sigtran.c:346 Sending connection (id=1) oriented data to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP (00 04 22 04 01 20 )
<0007> bsc_subscr_conn_fsm.c:806 SUBSCR_CONN[0x55afd26d4eb0]{WAIT_MDCX_BTS_HO}: transition to state CLEARING not permitted!
<0007> osmo_bsc_audio.c:56 Connecting BTS to port: 10002 conn: 1
<0012> input/ipaccess.c:243 Sign link vanished, dead socket
<0012> input/ipaccess.c:71 Forcing socket shutdown with no signal link set
<0012> bts_ipaccess_nanobts.c:407 (bts=0) Dropping OML link.
<0014> osmo_bsc_main.c:352 Lost some E1 TEI link: 1 0x7f494abd8070
<0012> bts_ipaccess_nanobts.c:391 (bts=0,trx=0) Dropping RSL link.
<0014> osmo_bsc_main.c:352 Lost some E1 TEI link: 2 0x7f494abd8070
<0012> input/ipaccess.c:243 Sign link vanished, dead socket
<0012> input/ipaccess.c:71 Forcing socket shutdown with no signal link set
<0012> bts_ipaccess_nanobts.c:407 (bts=1) Dropping OML link.
<0014> osmo_bsc_main.c:352 Lost some E1 TEI link: 1 0x7f494aba2070
<0007> bsc_api.c:689 (bts=1,trx=0,ts=1,pchan=TCH/F) (ss=0,NONE) (IMSI:001019876543210) S_LCHAN_UNEXPECTED_RELEASE
<0007> osmo_bsc_api.c:457 Tx MSC CLEAR REQUEST
<0007> osmo_bsc_api.c:465 SUBSCR_CONN[0x55afd26d4eb0]{WAIT_MDCX_BTS_HO}: Received Event TX_SCCP
<0007> osmo_bsc_sigtran.c:325 Tx MSC CLEAR REQUEST
<0007> osmo_bsc_sigtran.c:346 Sending connection (id=1) oriented data to MSC: RI=SSN_PC,PC=0.23.1,SSN=BSSAP (00 04 22 04 01 01 )
<0012> bts_ipaccess_nanobts.c:391 (bts=1,trx=0) Dropping RSL link.
<0014> osmo_bsc_main.c:352 Lost some E1 TEI link: 2 0x7f494aba2070