With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cagwIdleModePageFailuresDwnlnkData
Cisco's ASN Gateway Idle Mode Page Failures Dwnlnk Data
1.3.6.1.4.1.9.9.638.1.3.1.1.1.112
The number of idlemode paging failures for downlink data.
Back to CISCO-ASN-GATEWAY-MIB MIB page.
IPHost Network monitor allows you to monitor cagwIdleModePageFailuresDwnlnkData 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.