3Com CoreBuilder 7000, Operation Manual, Page: 170 / 264

170 C
HAPTER
7: LAN E
MULATION
V
ERSIONS
1.0
AND
2.0
Figure 54
LANE LCC Multiplexed Data Frame Format (LANE 2.0 only)
Backward
Compatibility and
Mixture of LECs of
Both LANE Versions
1.0 and 2.0
LECs with LANE version1 and LANE version 2 can exist in the same ELAN.
The LEC with LANE version 1.0 will receive some LE control frames with
TLVs from Version 2.0.
Moves of Nodes If network nodes are moved, the LEC that used to represent the node
may generate a no-source request. The new LEC that represents the node
may generate a targetless ARP request.
Verify Request and
Response
This is a protocol used by the LEC to verify the address of the BUS.
0
4
8
1 2 L E H e a d e r Destination Address
OUI-X "A0"
ELAN ID
1 6 Destination Address
2 0 Source Address
2 4 Source Address Type/Lengh/Value
28 and on Info
OUI-X "3E" F r a m e T y p e
L C C - X " A A " L C C - X " A A " L C C - X " 0 3 " OUI-X "00"