pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/40533?usp=email )

Change subject: stp: ipa: Introduce test TC_combinedlset_loadshare ......................................................................

stp: ipa: Introduce test TC_combinedlset_loadshare

Test combined linkset loadsharing on IPA AS.

Change-Id: Ib39c34b997f72991efe27dfbe3ffbe987fa40acc tChange-Id: I029ac9f3c664d2f30cddc36f6eb1b39295689247 Related: SYS#7112 --- M stp/STP_Tests_IPA.cfg M stp/STP_Tests_IPA.ttcn M stp/expected-results.xml M stp/osmo-stp-ipa.confmerge 4 files changed, 152 insertions(+), 3 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/33/40533/1

diff --git a/stp/STP_Tests_IPA.cfg b/stp/STP_Tests_IPA.cfg index 9e9538e..8f6c24a 100644 --- a/stp/STP_Tests_IPA.cfg +++ b/stp/STP_Tests_IPA.cfg @@ -62,6 +62,20 @@ local_port := 20007 }, { + asp_name := "ipa-asp-LS0-0-0", + as_name := "ipa-as-LS0-0", + is_server := false, + remote_port := 5000, + local_port := 20010 + }, + { + asp_name := "ipa-asp-LS0-1-0", + as_name := "ipa-as-LS0-1", + is_server := false, + remote_port := 5000, + local_port := 20011 + }, + { asp_name := "ipa-asp-client0", as_name := "ipa-as-client0", is_server := true, diff --git a/stp/STP_Tests_IPA.ttcn b/stp/STP_Tests_IPA.ttcn index 3fb0ace..2aab7c3 100644 --- a/stp/STP_Tests_IPA.ttcn +++ b/stp/STP_Tests_IPA.ttcn @@ -425,8 +425,8 @@ "ipa-asp-loadshare-receiver1" }; var IpaConfigs ipa_configs := ipa_build_configs(asps); if (unknwon_dynamic_asp) { - ipa_configs[0].local_port := 3010; - ipa_configs[1].local_port := 3011; + ipa_configs[0].local_port := 9998; + ipa_configs[1].local_port := 9999; }

f_init_ipa(ipa_configs := ipa_configs); @@ -528,6 +528,114 @@ f_tc_tmt_loadshare_sls(true); }

+/* Test AS Loadsharing, (distributing traffic within linksets/ASs of a combined linkset). + * STP routing table is configured with 1 combined linkset towards PC 32 mask /14 with 2 + * AS routes ("ipa-as-LS0-0", "ipa-as-LS0-1") with same priority, each using 1 + * ASP ("ipa-asp-LS0-0-0", "ipa-asp-LS0-1-0"). + * We take advantage of the fact that AS "ipa-as-loadshare-receiver" is never used + * to transmit in other tests and use it here for the routing of its configured + * "point-code override dpc 32" towards the "ipa-as-LS0-{0,1}" in the STP config. + */ +private function f_tc_combinedlset_loadshare(boolean unknown_dynamic_asp) +runs on IPA_CT { + var integer i; + + var Misc_Helpers.ro_charstring asps := { "ipa-asp-loadshare-receiver0", + "ipa-asp-loadshare-receiver1", + "ipa-asp-LS0-0-0", + "ipa-asp-LS0-1-0" }; + var IpaConfigs ipa_configs := ipa_build_configs(asps); + if (unknown_dynamic_asp) { + ipa_configs[0].local_port := 9998; + ipa_configs[1].local_port := 9999; + } + + f_init_ipa(ipa_configs := ipa_configs); + + /* bring up the 'sender' side (single ASP in AS) */ + f_connect_ipa(0); + /* activate the first 'receiver' side ASP */ + f_connect_ipa(2); + + /* verify traffic is routed from sender to [sole] receiver */ + for (i := 0; i < 10; i := i+1) { + f_test_traffic(0, 2); + } + + /* activate the second 'receiver' side ASP */ + f_connect_ipa(3); + + /* 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 < iter_per_asp; i := i+1) { + var octetstring data := f_SCCP_UDT(); + f_IPA_send(0, data); + alt { + [] as_count_rx_sls(2, data, sls_num_rx_1, num_rx_1); + [] as_count_rx_sls(3, data, sls_num_rx_2, num_rx_2); + } + } + + /* All traffic should still be sent to the same receiver, since + * OPC+DPC+SLS cannot change in IPA ASPs. + * However, depending on how the SLS seed tables were allocated, it can + * be that STP was routing through Alternative Route and now that the + * 2nd receiver is up it is now routing to it (Normal Route). Account + * for both scenarios. */ + if (not ((num_rx_1 == iter_per_asp and num_rx_2 == 0) or (num_rx_2 == iter_per_asp and num_rx_1 == 0))) { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Expected all traffic through same receiver!"); + } + + + /* activate the second 'sender' side ASP */ + f_connect_ipa(1); + + num_rx_1 := 0; + num_rx_2 := 0; + sls_num_rx_1 := {}; + 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_SCCP_UDT(); + f_IPA_send(i mod 2, data); + alt { + [] as_count_rx_sls(2, data, sls_num_rx_1, num_rx_1); + [] as_count_rx_sls(3, data, 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)); + } + setverdict(pass); +} +testcase TC_combinedlset_loadshare() runs on IPA_CT { + f_tc_combinedlset_loadshare(false); +} +/* same as above, with "accept-asp-connections dynamic-permitted" and clients from unknown ASPs */ +testcase TC_unknown_client_dynamic_combinedlset_loadshare() runs on IPA_CT { + f_tc_combinedlset_loadshare(true); +} + private function f_IPA_ping(integer idx) runs on IPA_CT { var IpaCcmMsgtype ipa_ping_msg := IPAC_MSGT_PING; @@ -641,6 +749,8 @@ execute( TC_tmt_loadshare_roundrobin() ); execute( TC_tmt_loadshare_sls() ); execute( TC_unknown_client_dynamic_tmt_loadshare() ); + execute( TC_combinedlset_loadshare() ); + execute( TC_unknown_client_dynamic_combinedlset_loadshare() );

execute( TC_beat() ); execute( TC_beat_timeout() ); diff --git a/stp/expected-results.xml b/stp/expected-results.xml index 646ca7b..91115d9 100644 --- a/stp/expected-results.xml +++ b/stp/expected-results.xml @@ -1,5 +1,5 @@ <?xml version="1.0"?> -<testsuite name='STP_Tests' tests='60' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> +<testsuite name='STP_Tests' tests='62' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> <testcase classname='STP_Tests_M3UA' name='TC_connect_asp_up' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_beat' time='MASKED'/> <testcase classname='STP_Tests_M3UA' name='TC_beat_payload' time='MASKED'/> @@ -59,6 +59,8 @@ <testcase classname='STP_Tests_IPA' name='TC_tmt_loadshare_roundrobin' time='MASKED'/> <testcase classname='STP_Tests_IPA' name='TC_tmt_loadshare_sls' time='MASKED'/> <testcase classname='STP_Tests_IPA' name='TC_unknown_client_dynamic_tmt_loadshare' time='MASKED'/> + <testcase classname='STP_Tests_IPA' name='TC_combinedlset_loadshare' time='MASKED'/> + <testcase classname='STP_Tests_IPA' name='TC_unknown_client_dynamic_combinedlset_loadshare' time='MASKED'/> <testcase classname='STP_Tests_IPA' name='TC_beat' time='MASKED'/> <testcase classname='STP_Tests_IPA' name='TC_beat_timeout' time='MASKED'/> <testcase classname='STP_Tests_IPA' name='TC_clnt_beat_timeout' time='MASKED'/> diff --git a/stp/osmo-stp-ipa.confmerge b/stp/osmo-stp-ipa.confmerge index 954f175..ef95384 100644 --- a/stp/osmo-stp-ipa.confmerge +++ b/stp/osmo-stp-ipa.confmerge @@ -53,6 +53,26 @@ point-code override dpc 34 asp ipa-asp-override-receiver0 asp ipa-asp-override-receiver1 + ! CombinedLinkset-loadsharing AS(P)s: + asp ipa-asp-LS0-0-0 20010 5000 ipa + local-ip 127.0.0.1 + remote-ip 127.0.0.1 + role sg + sctp-role server + asp ipa-asp-LS0-1-0 20011 5000 ipa + local-ip 127.0.0.1 + remote-ip 127.0.0.1 + role sg + sctp-role server + as ipa-as-LS0-0 ipa + point-code override dpc 38 + routing-key 0 44 + asp ipa-asp-LS0-0-0 + as ipa-as-LS0-1 ipa + point-code override dpc 39 + routing-key 0 45 + asp ipa-asp-LS0-1-0 + ! CLIENT asp ipa-asp-client0 6001 7001 ipa local-ip 127.0.0.1 remote-ip 127.0.0.1 @@ -68,6 +88,9 @@ ! route-table system update route 31 16777215 linkset ipa-as-loadshare-receiver + ! These 2 below are used in TC_combinedlset_loadshare to route traffic from ipa-as-loadshare-receiver towards: + update route 32 16777215 linkset ipa-as-LS0-0 priority 6 + update route 32 16777215 linkset ipa-as-LS0-1 priority 6 update route 33 16777215 linkset ipa-as-override-receiver ! !SERVERS: