With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
tn3270eRtDataAvgRt
tn3270e Rt Data Avg Rt
1.3.6.1.2.1.34.9.1.2.1.4
The average total response time measured over the last collection interval.
Back to TN3270E-RT-MIB MIB page.
IPHost Network monitor allows you to monitor tn3270eRtDataAvgRt on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.