With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
tn3270eRtDataBucket4Rts
tn3270e Rt Data Bucket4 Rts
1.3.6.1.2.1.34.9.1.2.1.17
The count of the response times falling into bucket 4. A management application can detect discontinuities in this counter by monitoring the tn3270eRtDataDiscontinuityTime object.
Back to TN3270E-RT-MIB MIB page.
IPHost Network monitor allows you to monitor tn3270eRtDataBucket4Rts 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.