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laforge gerrit-no-reply at lists.osmocom.orglaforge has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/22298 ) Change subject: gbproxy: Use IMSI cache for PTP paging and implement DUMMY_PAGING_PS ...................................................................... Patch Set 1: (2 comments) https://gerrit.osmocom.org/c/osmo-sgsn/+/22298/1/src/gbproxy/gb_proxy.c File src/gbproxy/gb_proxy.c: https://gerrit.osmocom.org/c/osmo-sgsn/+/22298/1/src/gbproxy/gb_proxy.c@436 PS1, Line 436: BSSGP_CAUSE_INV_MAND_INF > But what should we do if we don't find the IMSI for the paging response? I can check if the spec pro […] I would simply drop the message in such situations. I thinkthis message really only happens with (nowhere implemented) EC-GSM-IoT, where the paging cycle can be many minutes, and where the PCU can actually reject paging if the next paging cycle is too far in the future. I'm not sure what a SGNS would even do if tha happens. We try our best - if there was a paging before (there should always be), then we have the IMSI in the cache. If thre was none, we can log a NOTICE or ERROR in the log (and/or increment a counter), but I would not inform either SGSN or PCU about it. https://gerrit.osmocom.org/c/osmo-sgsn/+/22298/1/src/gbproxy/gb_proxy.c@438 PS1, Line 438: OSMO_ASSERT(nse->sgsn_facing); > This is the nse extracted from the cache entry. […] Ack -- To view, visit https://gerrit.osmocom.org/c/osmo-sgsn/+/22298 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-sgsn Gerrit-Branch: master Gerrit-Change-Id: I7243e0d4470cb62fa6db36d26002ccd6542b5147 Gerrit-Change-Number: 22298 Gerrit-PatchSet: 1 Gerrit-Owner: daniel <dwillmann at sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: laforge <laforge at osmocom.org> Gerrit-CC: lynxis lazus <lynxis at fe80.eu> Gerrit-Comment-Date: Mon, 18 Jan 2021 18:07:42 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: daniel <dwillmann at sysmocom.de> Comment-In-Reply-To: lynxis lazus <lynxis at fe80.eu> Gerrit-MessageType: comment -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210118/9cf53e4e/attachment.htm>