With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdmsNumNotificationRate
Cisco Digital Media Management System Number Notification Rate
1.3.6.1.4.1.9.9.655.1.8.2.6
The number of notifications emitted per minute by this installation of DMS since last reboot.
Back to CISCO-DIGITAL-MEDIA-SYSTEMS-MIB. MIB page.
IPHost Network monitor allows you to monitor cdmsNumNotificationRate 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.