Fortinet FortiGate 50A - Manual (Page 71)

System status Session list
FortiGate-50A Installation and Configuration Guide
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Each line of the session list displays the following information.
Figure 4: Example session list
Protocol The service protocol of the connection, for example, udp, tcp, or icmp.
From IP The source IP address of the connection.
From Port The source port of the connection.
To IP The destination IP address of the connection.
To Port The destination port of the connection.
Expire The time, in seconds, before the connection expires.
Clear Stop an active communication session.