[repack] — Unknown-mme-ue-s1ap-id

Use sctp stat on the MME’s OS or wireshark filters: sctp .

Ensure the mmeCodeList and mmeName are consistent across the network to prevent routing signaling to an MME that didn't originate the UE context. unknown-mme-ue-s1ap-id

If the eNodeB still holds a stale context and sends a message (e.g., a Handover Required or Uplink NAS Transport) using the old MME UE S1AP ID , the MME responds with unknown-mme-ue-s1ap-id . Use sctp stat on the MME’s OS or wireshark filters: sctp

When a network log captures an message (often accompanied by an S1AP Error Indication ), it means the MME has received a message from an eNodeB referencing an ID that the MME does not recognize or no longer has in its active database. unknown-mme-ue-s1ap-id