With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmedxCntxPeakNumActiveContexts
cmedx Cntx Peak Num Active Contexts
1.3.6.1.4.1.9.10.104.1.2.3.1.2
Peak number of active contexts in the media gateway link.
Back to CISCO-MEGACO-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cmedxCntxPeakNumActiveContexts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.