User Manual
Data
Link
Layer
IEEE 802.2 LLC
IEEE802.3 CSMA/CD MAC
Physical
Layer
IEEE 802.3 PLS
IEEE 802.3
MAU
CS |
MII
ANSI X3T9.5 PMD
Coaxial/STP/UTPFiber
This above diagram shows the Ethernet architecture, LLC
Logical Link Control (LLC)
Data link layer is composed of both the
Logical link control supports the interface between the Ethernet MAC and upper layers in the protocol stack, usually Network layer, which is nothing to do with the nature of the LAN. So it can operate over other different LAN technology such as Token Ring, FDDI and so on. Likewise, for the interface to the MAC layer, LLC defines the services with the interface independent of the medium access technology and with some of the nature of the medium itself.
Publication date: March, 2007
Revision A1
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