With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
diffServMultiFieldClfrSrcL4PortMin
Services Differentiated Services Services Multi Field Clfr Source L4 Port Minimum
1.3.6.1.2.1.97.1.2.6.1.12
The minimum value that the layer-4 source port number in the packet must have in order to match this classifier entry.
Back to DIFFSERV-MIB MIB page.
IPHost Network monitor allows you to monitor diffServMultiFieldClfrSrcL4PortMin on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.