With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceDiagTestText
Cisco Entity Diagnostics Test Text
1.3.6.1.4.1.9.9.350.1.1.1.1.2
This object indicates a human-readable description of the test. Examples include: 'Marching Pattern DRAM Test' 'Data Pins DRAM Test' 'Internal Loopback Test' 'External Loopback Test'
Back to CISCO-ENTITY-DIAG-MIB MIB page.
IPHost Network monitor allows you to monitor ceDiagTestText 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.