With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sonetFarEndVTIntervalValidData
sonet Far End VT Interval Valid Data
This variable indicates if the data for this interval is valid.
Back to SONET-MIB MIB page.
IPHost Network monitor allows you to monitor sonetFarEndVTIntervalValidData on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
