With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
c2900PortCollFragFrames
Cisco 2900 Port Collision fragment Frames
1.3.6.1.4.1.9.9.87.1.4.2.1.7
The total number of frames whose lengths are less than 64 and have bad FCS values. The preamble and sfd fields are excluded from the byte count of a frame while the FCS field is included.
Back to CISCO-C2900-MIB MIB page.
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