With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fgVpnSslTunnelBytesOut
fg Vpn Ssl Tunnel Bytes Out
1.3.6.1.4.1.12356.101.12.2.4.1.8
The number of outgoing bytes of L2 traffic through this tunnel since it was established
Back to FORTINET-FORTIGATE-MIB MIB page.
IPHost Network monitor allows you to monitor fgVpnSslTunnelBytesOut on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet access points right now.