With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgspCongestionNotifEnabled
Cisco GSP Congestion Notification Enabled
1.3.6.1.4.1.9.9.336.1.7.3
The signalling point congestion notification truth value. 'true' Indicates that ciscoGspCongestionChange and ciscoGspRxCongestionChange notification is to be generated when the state changes. That is, the notification generation is enabled. 'false' Indicates that ciscoGspCongestionChange and ciscoGspRxCongestionChange notification generation is disabled.
Back to CISCO-ITP-GSP-MIB MIB page.
IPHost Network monitor allows you to monitor cgspCongestionNotifEnabled on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.