With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cCdmaRPRegLifeTimeZeroRequests
Cisco Cdma RP Registration Life Time Zero Requests
1.3.6.1.4.1.9.9.157.1.5.3
The number of valid registration requests received with life time zero since system was last restarted.
Back to CISCO-CDMA-PDSN-MIB MIB page.
IPHost Network monitor allows you to monitor cCdmaRPRegLifeTimeZeroRequests on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.