With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
intSrvIfAttribAllocatedBits
Integrated Services If Attrib Allocated Bits
1.3.6.1.2.1.52.1.1.1.1
The number of bits/second currently allocated to reserved sessions on the interface.
Back to INTEGRATED-SERVICES-MIB MIB page.
IPHost Network monitor allows you to monitor intSrvIfAttribAllocatedBits 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.