With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
tn3270sStatsSampledHostResponses
tn3270s Stats Sampled Host Responses
1.3.6.1.4.1.9.9.54.1.2.1.1.10
Total number of Sampled Inbound Transactions (identified by EOR) on which response time is computed since restart of last listen on ServerAddress/TcpPort. Counters get reset at that point.
Back to CISCO-TN3270SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor tn3270sStatsSampledHostResponses 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.