With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rttMonCtrlOperTable
Round Trip Time Monitor Control Operational Table
1.3.6.1.4.1.9.9.42.1.2.9
A table of which contains the Operational values for the probe, and the conceptual RTT control row. This table augments the rttMonCtrlAdminTable.
Back to CISCO-RTTMON-MIB MIB page.
IPHost Network monitor allows you to monitor rttMonCtrlOperTable 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.