With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
lineUpLineRate
line Up Line Rate
1.3.6.1.4.1.9.10.26.1.4.1.1.9
Current upstream line rate in kbps. This is adapted by the line card using rate adaptation logic.
Back to CISCO-C6200-MIB MIB page.
IPHost Network monitor allows you to monitor lineUpLineRate 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.