With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mgDomainNameIndex
mg Domain Name Index
1.3.6.1.4.1.351.150.10.1.6.1.1.1
This object serves as index to this table.
Back to CISCO-WAN-MG-MIB MIB page.
IPHost Network monitor allows you to monitor mgDomainNameIndex 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.