With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipIpReasmReqds
Cisco Channel Interface Processor Ip reassembly Reqds
1.3.6.1.4.1.9.9.32.1.1.1.1.15
The number of IP fragments received which needed to be reassembled at this entity.
Back to CISCO-CIPTCPIP-MIB MIB page.
IPHost Network monitor allows you to monitor cipIpReasmReqds 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.