[M] Change in osmo-ttcn3-hacks[master]: stp: Fix brokeness in TC_tmt_loadshare

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/39651?usp=email ) Change subject: stp: Fix brokeness in TC_tmt_loadshare ...................................................................... stp: Fix brokeness in TC_tmt_loadshare The test was not even setting the traffic-mode in the UIT. Furthermore, it was expecting pure round-robin behavior, which was the older behavior of osmo-stp when loadshare traffic-mode was selected. Actually split the test into 2, naming them properly (since round robin is not a AS traffic mode in itself, but a possible implementation of the loadshare traffic-mode. The new test validates the usual loadshare traffic-mode based on SLS distribution. Related: SYS#7112 Depends: libosmo-sigtran.git Change-Id I61340549c596f1c04bc2269dbc165c327bf72037 Change-Id: I16d81cb2f88bb2927f248182ad4f8f27c8c24859 --- M stp/STP_Tests_M3UA.ttcn M stp/expected-results.xml 2 files changed, 105 insertions(+), 9 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/51/39651/1 diff --git a/stp/STP_Tests_M3UA.ttcn b/stp/STP_Tests_M3UA.ttcn index 3fb3fc0..063256b 100644 --- a/stp/STP_Tests_M3UA.ttcn +++ b/stp/STP_Tests_M3UA.ttcn @@ -585,24 +585,24 @@ } } -/* test "traffic-mode load-share" behavior */ -testcase TC_tmt_loadshare() runs on RAW_M3UA_CT { +/* test "traffic-mode roundrobin" behavior (distributing within ASPs of a given AS in roundrobin fashion). */ +testcase TC_tmt_loadshare_roundrobin() runs on RAW_M3UA_CT { var integer i; f_init_m3ua(); + f_vty_config2(VTY, {"cs7 instance 0", "as as-receiver m3ua"}, "traffic-mode round-robin"); + var OCT4 rctx_sender := int2oct(f_m3ua_cli_config(0).routing_ctx, 4); var OCT4 pc_sender := int2oct(f_m3ua_cli_config(0).point_code, 4); var OCT4 rctx_receiver := int2oct(f_m3ua_cli_config(1).routing_ctx, 4); var OCT4 pc_receiver := int2oct(f_m3ua_cli_config(1).point_code, 4); - /* FIXME: configure the STP via VTY to set traffic-mode */ - /* bring up the 'sender' side (single ASP in AS) */ f_M3UA_asp_up_act(0, omit, rctx_sender); /* activate the first 'receiver' side ASP */ - f_M3UA_asp_up_act(1, c_M3UA_TMT_loadshare, omit); // TODO: rctx + f_M3UA_asp_up_act(1, omit, omit); // TODO: rctx /* verify traffic is routed from sender to [sole] receiver */ for (i := 0; i < 10; i := i+1) { @@ -610,12 +610,12 @@ } /* activate the second 'receiver' side ASP (no NOTIFY) */ - f_M3UA_asp_up_act(2, c_M3UA_TMT_loadshare, omit, c_M3UA_ST_I_AS_ACTIVE, omit); // TODO: rctx + f_M3UA_asp_up_act(2, omit, omit, c_M3UA_ST_I_AS_ACTIVE, omit); // TODO: rctx /* verify traffic is routed from sender to new receiver */ const integer iter_per_asp := 5; var Integers num_rx := {}; - for (i := 0; i < g_m3ua_num_clients; i := i + 1) { + for (i := 0; i < 3; i := i + 1) { num_rx := num_rx & {0}; } for (i := 0; i < 2*iter_per_asp; i := i+1) { @@ -640,6 +640,100 @@ setverdict(pass); f_clear_m3ua(); + + f_vty_config2(VTY, {"cs7 instance 0", "as as-receiver m3ua"}, "no traffic-mode"); +} + +private altstep as_count_rx_sls(integer idx, template (present) PDU_M3UA exp, inout Integers sls_counter, inout integer rx_counter) +runs on RAW_M3UA_CT { + var M3UA_RecvFrom rx; + [] M3UA[idx].receive(t_M3UA_RecvFrom(exp)) -> value rx { + var integer sls := oct2int(rx.msg.m3UA_DATA.messageParameters.protocol_Data.sLS); + sls_counter[sls] := sls_counter[sls] + 1; + rx_counter := rx_counter + 1; + } +} + +/* test "traffic-mode load-share" behavior. Validates ASP Loadsharing scenario (distributing traffic within ASPs of one AS). + * NOTE: This test does not validate AS Loadsharing, (distributing traffic within linksets/ASs of a combined linkset). */ +testcase TC_tmt_loadshare_sls() runs on RAW_M3UA_CT { + var integer i; + + f_init_m3ua(); + + f_vty_config2(VTY, {"cs7 instance 0", "as as-receiver m3ua"}, "traffic-mode loadshare"); + + var OCT4 rctx_sender := int2oct(f_m3ua_cli_config(0).routing_ctx, 4); + var OCT4 pc_sender := int2oct(f_m3ua_cli_config(0).point_code, 4); + var OCT4 rctx_receiver := int2oct(f_m3ua_cli_config(1).routing_ctx, 4); + var OCT4 pc_receiver := int2oct(f_m3ua_cli_config(1).point_code, 4); + + /* bring up the 'sender' side (single ASP in AS) */ + f_M3UA_asp_up_act(0, omit, rctx_sender); + + /* activate the first 'receiver' side ASP */ + f_M3UA_asp_up_act(1, c_M3UA_TMT_loadshare, omit); // TODO: rctx + + /* verify traffic is routed from sender to [sole] receiver */ + for (i := 0; i < 10; i := i+1) { + f_test_traffic(0, rctx_sender, pc_sender, 1, rctx_receiver, pc_receiver); + } + + /* activate the second 'receiver' side ASP (no NOTIFY) */ + f_M3UA_asp_up_act(2, c_M3UA_TMT_loadshare, omit, c_M3UA_ST_I_AS_ACTIVE, omit); // TODO: rctx + + /* verify traffic is routed from sender to new receiver */ + const integer iter_per_asp := 20; + const integer NUM_SLS := 16; /* SLS in ITU is 4 bits. */ + var integer num_rx_1 := 0; + var integer num_rx_2 := 0; + var Integers sls_num_rx_1 := {}; + var Integers sls_num_rx_2 := {}; + for (i := 0; i < NUM_SLS; i := i + 1) { + sls_num_rx_1 := sls_num_rx_1 & {0}; + sls_num_rx_2 := sls_num_rx_2 & {0}; + } + for (i := 0; i < 2*iter_per_asp; i := i+1) { + var octetstring data := f_rnd_octstring_rnd_len(100); + var template (value) M3UA_Protocol_Data tx_pd; + var template (present) M3UA_Protocol_Data rx_pd; + /* Distribute traffic over ASPs based on SLS, since OPC is always the same. + * SLS in ITU is 4 bits. */ + var OCT1 sls := int2oct(i mod 16, 1); + tx_pd := ts_M3UA_protocol_data(pc_sender, pc_receiver, '23'O, '00'O, '00'O, sls, data); + rx_pd := tr_M3UA_protocol_data(pc_sender, pc_receiver, '23'O, '00'O, '00'O, sls, data); + f_M3UA_send(0, ts_M3UA_DATA(rctx_sender, tx_pd), 1); + alt { + [] as_count_rx_sls(1, tr_M3UA_DATA(rctx_receiver, rx_pd), sls_num_rx_1, num_rx_1); + [] as_count_rx_sls(2, tr_M3UA_DATA(rctx_receiver, rx_pd), sls_num_rx_2, num_rx_2); + } + } + + /* Make sure traffic was sent over both ASPs and that it was distributed: */ + if (num_rx_1 == 0) { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx 0 packets in 1st ASP!"); + } + if (num_rx_2 == 0) { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx 0 packets in 2nd ASP!"); + } + if (num_rx_1 + num_rx_2 != 2*iter_per_asp) { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + log2str("Rx ", num_rx_1 + num_rx_2 ," packets in total vs exp ", 2*iter_per_asp)); + } + + /* Check that a given SLS is not forwarded to both ASPs: */ + for (i := 0; i < NUM_SLS; i := i+1) { + if (sls_num_rx_1[i] > 0 and sls_num_rx_2[i] > 0) { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + log2str("Rx packets for SLS ", i, " in both ASPs!")); + } + + } + setverdict(pass); + + f_clear_m3ua(); + + f_vty_config2(VTY, {"cs7 instance 0", "as as-receiver m3ua"}, "no traffic-mode"); } /* test "traffic-mode broadcast" behavior */ @@ -1414,7 +1508,8 @@ execute( TC_asp_act_loadshare() ); execute( TC_asp_act_broadcast() ); execute( TC_tmt_override() ); - execute( TC_tmt_loadshare() ); + execute( TC_tmt_loadshare_roundrobin() ); + execute( TC_tmt_loadshare_sls() ); execute( TC_tmt_broadcast() ); execute( TC_act_rctx_data_no_rctx() ); diff --git a/stp/expected-results.xml b/stp/expected-results.xml index bc9c861..a764349 100644 --- a/stp/expected-results.xml +++ b/stp/expected-results.xml @@ -8,7 +8,8 @@ <testcase classname='STP_Tests_M3UA' name='TC_asp_act_loadshare' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_asp_act_broadcast' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_tmt_override' time='MASKED'/> - <testcase classname='STP_Tests_M3UA' name='TC_tmt_loadshare' time='MASKED'/> + <testcase classname='STP_Tests_M3UA' name='TC_tmt_loadshare_roundrobin' time='MASKED'/> + <testcase classname='STP_Tests_M3UA' name='TC_tmt_loadshare_sls' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_tmt_broadcast' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_act_rctx_data_no_rctx' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_m3ua_tcp_cli' time='MASKED'/> -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/39651?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: I16d81cb2f88bb2927f248182ad4f8f27c8c24859 Gerrit-Change-Number: 39651 Gerrit-PatchSet: 1 Gerrit-Owner: pespin &lt;pespin(a)sysmocom.de&gt;