With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cermResUserId
Cisco Embedded Resource Manager Resource User Id
1.3.6.1.4.1.9.9.510.1.2.5.1.1
This object indicates the resource user identifier. This uniquely identifies a resource user in a resource user type.
Back to CISCO-ERM-MIB MIB page.
IPHost Network monitor allows you to monitor cermResUserId 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.