With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sonetFarEndVTIntervalEntry
sonet Far End VT Interval Entry
1.3.6.1.2.1.10.39.3.2.2.1
An entry in the SONET/SDH Far End VT Interval table.
Back to SONET-MIB MIB page.
IPHost Network monitor allows you to monitor sonetFarEndVTIntervalEntry 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.