Hi All,
This question is probably trivial to everyone else but I am unable to understand so please don't flame just in case.
Per the Ethernet FAQ it states that the difference between the frame types is:
"In the 802.3 frame type, this two-byte field after the source address is a length field specifying the number of bytes in the LLC and data fields. If these two bytes are greater than 05DC hex (1500 decimal), the frame is a Version 2 frame. Since all type fields are greater than
1500 decimal (the maximum Ethernet frame size), both frame types can easily coexist on the same network"Now in the Ethernet 2 Frame the type field is 2 bytes and since I believe that is the most common format on most LAN's we see eg: 0800 (Hex) for ip. But per the statement quoted above it says that in the
802.3 header the length field specifies the number of bytes in the LLC- in the Data field. Now the LLC header I think is the SSAP and the DSAP which are 1 byte each but adding the Data portion would be well over the 2 bytes. Confused as to how it would store this.
Another question related to the same frame type is that in the FAQ and other places it gives 4 frame formats. Now when it says difference between Ethernet 2 and 802.3 is it referring to the 802.3 novell 'raw' or to the combination of the 802.2 LLC and the 802.2 SNAP frame type.
Thank you for your help