Started by upstream project "gerrit-osmo-s1gw" build number 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#2087720877falsefalse2087758440SUCCESS1773411309768https://jenkins.osmocom.org/jenkins/job/gerrit-binpkgs/20877/build4-deb12build-ansiblesrc/s1gw_metrics.erlinclude/s1gw_metrics.hrlsrc/s1ap_utils.erlsrc/enb_proxy.erlbceb3d454d0c2af05759bc11f1ff8f64ba8a44f21773409027000https://jenkins.osmocom.org/jenkins/user/fixeriaVadim Yanitskiyvyanitskiy@sysmocom.deenb_proxy: add initial MME pooling support Rework the CONNECTING state to dynamically select an MME from the pool via mme_registry:mme_select/1, passing the eNB's Tracking Area Codes (from the ?'id-SupportedTAs' IE of the S1 SETUP REQUEST) and a list of already-tried MMEs, so successive attempts pick a different candidate. On connection failure (SCTP establishment timeout or error), or when the selected MME rejects the S1 SETUP REQUEST or fails to respond in time, the FSM re-enters the CONNECTING state rather than terminating. This triggers another mme_select/1 call with the failed MME added to the tried_mmes list. S1 SETUP FAILURE PDUs from the MME are intentionally not forwarded to the eNB, so the retry is fully transparent. Once mme_select/1 exhausts all candidates it returns 'error'; at that point the FSM builds and sends an S1 SETUP FAILURE PDU to the eNB and terminates. Other changes: * add close_sock/1, close_conn/1 helpers; simplify terminate/3 * add ?S1GW_CTR_ENB_PROXY_MME_SELECT_ERROR counter Change-Id: I83dc4a78c78a7b87e87f5ca9a941a168d6c1dc36 Related: SYS#7052 2026-03-13 20:37:07 +0700bceb3d454d0c2af05759bc11f1ff8f64ba8a44f2enb_proxy: add initial MME pooling supporteditsrc/s1gw_metrics.erleditsrc/s1ap_utils.erleditinclude/s1gw_metrics.hrleditsrc/enb_proxy.erlgithttps://jenkins.osmocom.org/jenkins/user/fixeriaVadim Yanitskiy