srsepc says that : T3413 expired -- Could not page the ue.

[natanzi]

Dears, Recently I received an error message during the Setup of my own 5G Network. I'm not sure about the cause and side effects of the issue.

`EPC terminal: ubnt@ubnt-VirtualBox:~$ sudo -i [sudo] password for ubnt: root@ubnt-VirtualBox:~# sudo srsepc

Built in RelWithDebInfo mode using commit eee2bbf on branch HEAD.

--- Software Radio Systems EPC ---

Couldn't open , trying /root/.config/srsran/epc.conf Reading configuration file /root/.config/srsran/epc.conf... Couldn't open user_db.csv, trying /root/.config/srsran/user_db.csv HSS Initialized. MME S11 Initialized MME GTP-C Initialized MME Initialized. MCC: 0xf001, MNC: 0xff01 SPGW GTP-U Initialized. SPGW S11 Initialized. SP-GW Initialized. Received S1 Setup Request. S1 Setup Request - eNB Name: enb1, eNB id: 0x19b S1 Setup Request - MCC:001, MNC:01 S1 Setup Request - TAC 7, B-PLMN 0xf110 S1 Setup Request - Paging DRX v128 Sending S1 Setup Response Initial UE message: LIBLTE_MME_MSG_TYPE_ATTACH_REQUEST Received Initial UE message -- Attach Request Attach request -- IMSI: 001010123456789 Attach request -- eNB-UE S1AP Id: 1 Attach request -- Attach type: 1 Attach Request -- UE Network Capabilities EEA: 11110000 Attach Request -- UE Network Capabilities EIA: 01110000 Attach Request -- MS Network Capabilities Present: false PDN Connectivity Request -- EPS Bearer Identity requested: 0 PDN Connectivity Request -- Procedure Transaction Id: 1 PDN Connectivity Request -- ESM Information Transfer requested: false Downlink NAS: Sending Authentication Request UL NAS: Received Authentication Response Authentication Response -- IMSI 001010123456789 UE Authentication Accepted. Generating KeNB with UL NAS COUNT: 0 Downlink NAS: Sending NAS Security Mode Command. UL NAS: Received Security Mode Complete Security Mode Command Complete -- IMSI: 001010123456789 Getting subscription information -- QCI 7 Sending Create Session Request. Creating Session Response -- IMSI: 1010123456789 Creating Session Response -- MME control TEID: 1 Received GTP-C PDU. Message type: GTPC_MSG_TYPE_CREATE_SESSION_REQUEST SPGW: Allocated Ctrl TEID 1 SPGW: Allocated User TEID 1 SPGW: Allocate UE IP 172.16.0.2 Received Create Session Response Create Session Response -- SPGW control TEID 1 Create Session Response -- SPGW S1-U Address: 127.0.1.100 SPGW Allocated IP 172.16.0.2 to IMSI 001010123456789 Adding attach accept to Initial Context Setup Request Sent Initial Context Setup Request. E-RAB id 5 Received Initial Context Setup Response E-RAB Context Setup. E-RAB id 5 E-RAB Context -- eNB TEID 0x1; eNB GTP-U Address 127.0.1.1 UL NAS: Received Attach Complete Unpacked Attached Complete Message. IMSI 1010123456789 Unpacked Activate Default EPS Bearer message. EPS Bearer id 5 Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Sending EMM Information Received UE Context Release Request. MME-UE S1AP Id 1 There are active E-RABs, send release access bearers request Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Received UE Context Release Complete. MME-UE S1AP Id 1 UE Context Release Completed. Initial UE message: NAS Message Type Unknown Received Initial UE message -- Service Request Service request -- S-TMSI 0xef7d585c Service request -- eNB UE S1AP Id 2 Service Request -- Short MAC valid Service Request -- User is ECM DISCONNECTED UE previously assigned IP: 172.16.0.2 Generating KeNB with UL NAS COUNT: 2 UE Ctr TEID 0 Sent Initial Context Setup Request. E-RAB id 5 Found UE for Downlink Notification MME Ctr TEID 0x1, IMSI: 001010123456789 Received Initial Context Setup Response E-RAB Context Setup. E-RAB id 5 E-RAB Context -- eNB TEID 0x2; eNB GTP-U Address 127.0.1.1 Initial Context Setup Response triggered from Service Request. Sending Modify Bearer Request. Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Modify Bearer Request received after Downling Data Notification was sent T3413 expired -- Could not page the ue. Received GTP-C PDU. Message type: GTPC_MSG_TYPE_DOWNLINK_DATA_NOTIFICATION_FAILURE_INDICATION`

[jqhu27]

Hi, I met the same problem. Have you solved the problem?

[natanzi]

Hi,

Because of the issue related to dumping commands back to back, I have removed everything and installed it again by poshing the command step by step.

BR, Milad

[jqhu27]

Thanks for your information. I tried to reinstall the whole thing. But the problem still existing. For now I am using laptop with 1 Gbps NIC. I noticed that in their website they said 10 Gbps is needed. Could it be the reason?

[romilbalar]

Hey all, this seems to be an issue with all my latest builds. I have managed to get KPIMON up regardless of it, so I would just ignore that specific error for now.

[fklement]

I have exactly the same problem. Have any of you solved this problem?