Your Environment

• Version: 1.5
• Affected Component: AGW
• Affected Subcomponent: MME
• Deployment Environment: AWS (orc8r) bare-metal (AGW)

Describe the Issue

During scale testing, we observed on multiple gateways that after 5+ hrs we see attach procedure timeout on the UEs. In the mme logs we see

INFO  S1AP   tasks/s1ap/s1ap_mme_nas_procedur:0102    Received S1AP INITIAL_UE_MESSAGE ENB_UE_S1AP_ID 0xCB9B53 assoc-id:2 
INFO  S1AP   tasks/s1ap/s1ap_mme_nas_procedur:0115    New Initial UE message received with eNB UE S1AP ID: 0xCB9B53 assoc-id :2 
ERROR S1AP   tasks/s1ap/s1ap_mme_nas_procedur:0252    Initial UE Message- Duplicate ENB_UE_S1AP_ID. Ignoring the message, eNB UE S1AP 

To Reproduce

1. Run attach/detach tests over a longer duration of time; approx 4+ hrs.

mme logs and syslog attached.

Problem starts to happen after 18:00 in the log.

vagw4_mme_trunc.log.zip
vagw4_syslog_trunc.zip