With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmExtIfMauTrafficEntry
cm Ext If Mau Traffic Entry
1.3.6.1.4.1.9.9.398.1.3.1.1
An entry (conceptual row) in the cmExtIfMauTrafficEntry. Each entry contains the type of traffic carried by the interface associated with the MAU identified by the indices.
Back to CISCO-MAU-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cmExtIfMauTrafficEntry 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.