With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mediaIndependentIndex
media Independent Index
1.3.6.1.2.1.16.21.1.1.1
The value of this object uniquely identifies this mediaIndependent entry.
Back to HC-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor mediaIndependentIndex 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.