With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
adsl2PMChCurrValidIntervals
ADSL2 Performance Monitoring Channel current Valid Intervals
1.3.6.1.2.1.10.238.1.4.2.1.1.2
Valid intervals.
Back to ADSL2-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor adsl2PMChCurrValidIntervals on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.