Vadim Yanitskiy
c18ff4734b
As can be seen from ttcn3-bsc-test run #1565 on Jenkins [1], it may happen that the VTY command requesting handover reaches the IUT earlier than the SCCP 'SACK CC' message. In this case, the 'SUBSCR_CONN' FSM remains in state 'WAIT_CC', so we get an error: (bts=0,trx=0,ts=0,ss=0) (ARFCN 871) --> BTS 1 Manually triggering Handover from VTY SUBSCR_CONN(msc0-conn204)[0x5633b2877af0]{WAIT_CC}: Received Event HANDOVER_START SUBSCR_CONN(msc0-conn204)[0x5633b2877af0]{WAIT_CC}: Event HANDOVER_START not permitted The easiest way to avoid this is to introduce and artificial delay after the connection establishment and before triggering the handover. [1] https://jenkins.osmocom.org/jenkins/view/TTCN3/job/ttcn3-bsc-test/1565/ Change-Id: I19f7ca942e22d7930a56d1a525414f137a9ef831 |
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.. | ||
BSC_Tests.cfg | ||
BSC_Tests.default | ||
BSC_Tests.ttcn | ||
BSC_Tests_CBSP.ttcn | ||
BSC_Tests_LCLS.ttcn | ||
BSC_Tests_VAMOS.cfg | ||
BSC_Tests_VAMOS.ttcn | ||
MSC_ConnectionHandler.ttcn | ||
README.md | ||
README.txt | ||
expected-results.xml | ||
gen_links.sh | ||
osmo-bsc-vamos.cfg | ||
osmo-bsc.cfg | ||
osmo-stp.cfg | ||
regen_makefile.sh |
README.md
BSC_Tests.ttcn
- external interfaces
- A-bis side: RSL (emulates BTS-side client) (OML handled by osmo-bts-omldummy)
- A-side (emulates MSC-side)
- BSSAP/SCCP/M3UA (AoIP)
- BSSAP/SCCP/IPA (SCCPLite)
- MGW side: MGCP (emulates MGW side)
- VTY
- CTRL
- StatsD
{% dot bsc_tests.svg digraph G { graph [label="AoIP", labelloc=t, fontsize=30]; rankdir=LR; { rank=same; BTS; STP; }; BSC [label="IUT\nosmo-bsc",shape="box"]; ATS [label="ATS\nBSC_Tests.ttcn"]; BTS [label="osmo-bts-omldummy\nOML only"];
BTS -> BSC [label="A-bis OML"]; ATS -> BSC [label="A-bis RSL"]; ATS -> BSC [label="CTRL"]; ATS -> BSC [label="VTY"]; BSC -> ATS [label="StatsD"]; ATS -> STP [label="A BSSAP\nSCCP/M3UA"]; BSC -> STP [label="A BSSAP\nSCCP/M3UA"]; } %}
{% dot bsc_tests_sccplite.svg digraph G { graph [label="SCCPLite", labelloc=t, fontsize=30]; rankdir=LR; BSC [label="IUT\nosmo-bsc",shape="box"]; ATS [label="ATS\nBSC_Tests.ttcn"]; BTS [label="osmo-bts-omldummy\nOML only"];
BTS -> BSC [label="A-bis OML"]; ATS -> BSC [label="A-bis RSL"]; ATS -> BSC [label="CTRL"]; ATS -> BSC [label="VTY"]; BSC -> ATS [label="StatsD"]; ATS -> BSC [label="A BSSAP\nSCCP/IPA"]; } %}