With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cGgsnSACsgPathState
Cisco Ggsn Service-Aware Content Services Gateway Path State
1.3.6.1.4.1.9.9.497.1.3.4.1.10
This object indicates the CSG path state.
Back to CISCO-GGSN-SERVICE-AWARE-MIB MIB page.
IPHost Network monitor allows you to monitor cGgsnSACsgPathState 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.