With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cGgsnSATotalDeletePdps
Cisco Ggsn Service-Aware Total Delete Pdps
1.3.6.1.4.1.9.9.497.1.1.3.13
This object indicates the number PDPs which are deleted.
Back to CISCO-GGSN-SERVICE-AWARE-MIB MIB page.
IPHost Network monitor allows you to monitor cGgsnSATotalDeletePdps 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.