With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfrFragDroppedFragmentedOutPkts
Cisco Frame Relay Fragment Dropped Fragmented Out Packets
1.3.6.1.4.1.9.9.49.1.6.1.1.16
Number of fragments dropped because of running out of memory.
Back to CISCO-FRAME-RELAY-MIB MIB page.
IPHost Network monitor allows you to monitor cfrFragDroppedFragmentedOutPkts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.