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uw-ictd / open5gs

open5gs is an open source implementation of the Evolved Packet Core and 5GC supporting 3GPP Release 16. This repository is a maintenance and research fork of the main upstream open5gs/open5gs.
https://open5gs.org
GNU Affero General Public License v3.0
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MME not correctly handling RESET messages from eNB #13

Open spencersevilla opened 4 years ago

spencersevilla commented 4 years ago

In our pcap I'm seeing multiple instances where eNB sends a RESET message to MME for a specific enb_ue_id, MME responds with ResetAcknowledge, but then MME continues to send a message to that s1ap_enb_ue_id. Correct behavior should be to tear down all state and not send any further messages.

evelbodevil commented 3 years ago

@spencersevilla I am seeing the same thing 09/02 16:36:56.880: [mme] ERROR: s1ap_handle_uplink_nas_transport: Expectation `enb_ue' failed. (../src/mme/s1ap-handler.c:351)

any resolution to this issue?