This is my understanding of ethernet layer 2 framing methods:
802.3 raw = Does not have a type field.
802.2 w/LLC= Uses LLC to determine which protocol (ip, ipx etc) to hand to at layer3
802.2 SNAP = Why was it made? Was it created after LLC?
Ethernet II = Includes a type field to identify upper layer
My questions are:
1. When I capture SNAP frames, why am I seeing LLC fields in it? I thought 802.2 SNAP and 802.2 LLC were different beasts? Or does SNAP expand upon LLC in some way?
2. Is it possible to have differnet frame formats, all in one broadcast domain, communicating with each other?
Or can hosts framing with 802.3 only communicate with 802.3 hosts....... vice versa....