With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
interfaceTopNValue64
interface Top N Value64
1.3.6.1.2.1.16.27.1.3.1.4
The value at the end of the sampling interval, or the amount of change in the selected variable during this sampling interval for the identified interface. The selected variable is that interfaces's instance of the object selected by interfaceTopNObjectVariable. This value may be normalized if interfaceTopNNormalization required equals 'true'. This value of this object will be computed for all cases when interfaceTopNObjectVariable points to a 64-bit counter, and will be zero for all other cases.
Back to INTERFACETOPN-MIB MIB page.
IPHost Network monitor allows you to monitor interfaceTopNValue64 on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.