With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnosPortSpeedAdmin
Cisco Network Office Switch Port Speed Admin
1.3.6.1.4.1.9.10.43.1.3.1.1.5
Set to tenMbps(1) to operate in 10Mbps speed mode. Set to oneHundredMbps(2) to operate in 100Mbps speed mode. Set to autoNegotiate(3) to allow the switch to negotiate with the other end of the connection.
Back to CISCO-CNO-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor cnosPortSpeedAdmin 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.