Message
The following guide describes the message section from Edge Events.
Event Message is the last column of Event logs and probably the most important source of information about the call flow. This provides detailed information on Edge logs.
S1 Setup Request
eNodeB initiates the procedure by sending S1 (Radio Trunk) Setup Request message including the appropriate data to the MME. This message contains TAC ,eNodeB name ,eNodeB IP and its PLMN. This message is sent by eNodeB to MME
4G
"S1 Setup Request","protocol":"S1AP","node":"MME","direction":"Received","enodeb-id":806945,"tac":512,"restart-cntr":1,"enodeb-name":"SC6223800033","enodeb-addr":"192.168.200.100","serving-network-mcc":"425","serving-network-mnc":"99"
NG Setup Request
gNodeB initiates the procedure by sending NG (Radio Trunk) Setup Request message including the appropriate data to the AMF. This message contains TAC ,gNodeB name ,gNodeB IP and its PLMN. This message is sent by gNodeB to AMF
5G
"node":"amf","ran-node-name":"NA","ran-node-id":"99974000004","ran-node-ip":"192.168.200.94","NG Setup Request","direction":"Received","supported-plmns-tac":[{"mcc":"999","mnc":"74"}],"tac":"000002","time":"2025-09-02T04:34:14.393Z"
S1 Setup Response
MME responds with S1 (Radio Trunk) Setup Response message including the appropriate data. When this procedure is finished, the S1 (Radio Trunk) interface is operational and other S1 messages can be exchanged. This message is send by MME to eNodeB.
4G
"S1 Setup Response - Success","protocol":"S1AP","node":"MME","direction":"Sent","mme-name":"vmmestandalone","served-mme-grpid":1,"served-mme-code":1,"relative-mme-capacity":10,"enodeb-addr":"192.168.200.100","enodeb-id":806945,"served-plmns":[{"serving-network-mcc":"425","serving-network-mnc":"99"}]
NG Setup Response
AMF responds with NG (Radio Trunk) Setup Response message including the appropriate data. When this procedure is finished, the N2 (Radio Trunk) interface is operational and other N2 messages can be exchanged. This message is send by AMF to gNodeB.
5G
"node":"amf","ran-node-name":"NA","ran-node-id":"99974000004","ran-node-ip":"192.168.200.94","NG Setup Response","direction":"Sent","supported-plmns":[{"mcc":"315","mnc":"010"},{"mcc":"999","mnc":"74"}],"relative-amf-capacity":255,"amf-name":"AMF","time":"2025-09-01T16:14:41.198Z"
S1 Setup Failure
This indicates the failure of the S1 setup (Radio Trunk) with MME. This message is sent by the MME to eNodeB to indicate the S1 (Radio Trunk) Setup failure.
4G
"S1 Setup Failure","protocol":"S1AP","node":"MME","direction":"Sent"
NG Setup Failure
This indicates the failure of the NG setup (Radio Trunk) with AMF. This message is sent by the AMF to gNodeB to indicate the NG (Radio Trunk) Setup failure.
5G
"node":"amf","ran-node-id":"99974000004","ran-node-ip":"192.168.200.94","ran-node-name":"NA","gNB Disconnect","direction":"NA","time":"2025-09-01T19:49:27.930Z"
S1 Disconnect
This message indicates that the SCTP connection between the 4G radio and MME is disconnected. One reason could be Radio is rebooted.
4G
"S1 Disconnect","protocol":"S1AP","node":"MME","direction":"NA","enodeb-id":806945,"tac":512,"restart-cntr":0,"enodeb-name":"SC6223800033","enodeb-addr":"192.168.200.100","serving-network-mcc":"000","serving-network-mnc":"000"
gNB Disconnect
This message indicates that the SCTP connection between the 5G radio and AMF is disconnected. One reason could be Radio is rebooted.
5G
"node":"amf","ran-node-ip":"192.168.200.94","ran-node-name":"NA","ran-node-id":"99974000004","gNB Disconnect","direction":"NA","time":"2025-09-01T16:14:20.193Z"
HSS Connect
S6a connection between the edge to HSS host is up. We support two HSS host Cloud and Local. "hss-type" parameter indicates primary or secondary HSS.
4G
"HSS Connect","protocol":"S6a","node":"MME","direction":"NA","hss-host-name":"drafr1.monogoto.io","hss-type":"primary"
HSS Disconnect
S6a connection between the edge to HSS host is down. We support two HSS host Cloud and Local. "hss-type" parameter indicates primary or secondary HSS.
4G
"HSS Disconnect","protocol":"S6a","node":"MME","direction":"NA","hss-host-name":"drafr1.monogoto.io","hss-type":"primary"
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