How/why Tshark capture the FCS for this frame? I looked at other traffic (i.e., non-STP traffic) and did not see a FCS. The only other interesting aspect of this frame is the fact that it is pure 802.3 and not 802.3 with a LLC SNAP header, like this CDP frame:
I usually see 802.3 with a LLC SNAP header or just Ethernet II.
Does anyone have any ideas?