With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfwBufferStatsEntry
Cisco Firewall Buffer Stats Entry
1.3.6.1.4.1.9.9.147.1.2.2.1.1
An entry in the table, containing status information about a particular statistic for the set of buffers of a particular size.
Back to CISCO-FIREWALL-MIB MIB page.
IPHost Network monitor allows you to monitor cfwBufferStatsEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.