To monitor the working status of GTP packets, the Eudemon provides the following log functions: -
The Eudemon records logs according to the processing results of GTP packets. After the Eudemon processes a GTP packet, the status of the result may be: -
forward If the packet matches the rule for allowing the GTP packet, the Eudemon forwards the packet. -
prohibit If the packet matches the rule for prohibiting the GTP packet, the Eudemon discards the packet. -
rate-limit If the packet exceeds the maximum rate of the GTP tunnel, the Eudemon discards the packet. -
state-invalid If the status of the GTP packet is invalid, the Eudemon discards the packet. -
tunnel-limit If the number of GTP tunnels exceeds the maximum, the Eudemon discards the packet. -
The Eudemon records logs according to specified conditions. The Eudemon logs matched GTP packets through the setting of the value of the APN, MSI, or MSISDN, or the type of the message. Logs are sent by the GTP module to the information center in Syslog mode. Two information formats are available: -
basic Indicates the basic information about logs, such as the timestamp, source IP address, destination IP address, message type, packet status (including forwarded, prohibited, rate-limited, state-invalid, tunnel-limited, matchmsgtype, matchimsi, matchmsisdn, and matchapn), and interface. -
extended Indicates the extended information about logs, such as the IMSI, MSISDN, APN, selection mode, signaling SGSN address, data SGSN address, signaling GGSN address, and data GGSN address. |
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