With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
diffServMultiFieldClfrSrcL4PortMax
Services Differentiated Services Services Multi Field Clfr Source L4 Port Max
1.3.6.1.2.1.97.1.2.6.1.13
The maximum value that the layer-4 source port number in the packet must have in order to match this classifier entry. This value must be equal to or greater than the value specified for this entry in diffServMultiFieldClfrSrcL4PortMin.
Back to DIFFSERV-MIB MIB page.
IPHost Network monitor allows you to monitor diffServMultiFieldClfrSrcL4PortMax on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.