I'm studying some networking things, and something I noticed in the interface counters on a Cisco switch (output of
#sh int) one counter for 'babbles'
0 babbles, 0 late collision, 0 deferred
Cisco defines babbles as 'Babble errors occur due to the transmission of frames in excess of 1518 bytes in size'
I'm confused. Wikipedia says that a normal 1500 byte packet plus the layer 2 header/footer encapsulation comes to 1530 bytes. Wouldn't such a packet be a babble?
I just ran wireshark for a few sec and arranging frames by byte size shows almost all of them at 1514 bytes, and none bigger than this. So is Wikipedia wrong its definition of frame size or am I misunderstanding what's happening?