I have a Cisco 3560 switch which is dropping some frames the frames that are dropped are seen in a SPAN session for the ingress port (monitor source) but not in a SPAN session for the egress It has a positive counter displayed with show controllers "Valid frames, too small" against the receive side of the ingress port.
I cannot yet find any Cisco references to define this value. The frames that are being dropped have a Wireshark-reported frame length of 214 octets.
Does anybody know of a reference where this value is defined? (or know what this value refers to)