With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csgAgentOutstanding
Cisco Content Services Gateway Agent Outstanding
1.3.6.1.4.1.9.9.331.1.4.1.1.10
Current number of messages waiting to be ACKed.
Back to CISCO-CSG-MIB MIB page.
IPHost Network monitor allows you to monitor csgAgentOutstanding 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.