With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcmPortClass3RxFrames
fcm Port Class3 Rx Frames
1.3.6.1.2.1.10.56.1.4.1.16
The number of Class 3 frames received at this port.
Back to FC-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor fcmPortClass3RxFrames on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
