With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cshcInterfaceReceiveBufferSize
cshc Interface Receive Buffer Size
1.3.6.1.4.1.9.9.663.1.2.2.1.2
The aggregate buffer size of all the receive queues on this interface.
Back to CISCO-SWITCH-HARDWARE-CAPACITY-MIB MIB page.
IPHost Network monitor allows you to monitor cshcInterfaceReceiveBufferSize 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.