With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rprClientCountersStatsEntry
rpr Client Counters Stats Entry
1.0.8802.17.1.1.1.4.4.1
An entry in the span stats table.
Back to IEEE-802DOT17-RPR-MIB MIB page.
IPHost Network monitor allows you to monitor rprClientCountersStatsEntry 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.