With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcIfBbScn
Cisco Fibre Element If Buffer-to-Buffer Scn
1.3.6.1.4.1.9.9.289.1.1.2.1.34
The buffer-to-buffer state change number operational on this interface.
Back to CISCO-FC-FE-MIB MIB page.
IPHost Network monitor allows you to monitor fcIfBbScn 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.