Wired LANs Ethernet

Physical Layer

designed for using fiber-optic cable over long distance

Implementation

10GBase-S
-short-wave 850nm multimode

10GBase-L
-long-wave 1310nm single mode

10GBase-E
-long-wave 1500nm single mode

MAC Sublayer

operates only in full duplex mode

compete with other LAN protocols

FDDI

Fiber Channel

MAC Sublayer

half duplex with SCMA/CD

autonegotiation, negotiate the mode
or data rate of operation

Physical Layer

uses star topology

Implementation

100Base-TX

100Base-FX

100Base-T4

MAC Sublayer

Two approached medium access

half-duplex using CSMA/CD

full-duplex without CSMA/CD

Physical Layer

Reconciliation Sublayer (RS)

Gigabit Medium Independent Interface (GMII)

PHY Sublayer

Medium-Dependent Interface (MDI)

Implementation

1000Base-SX

1000Base-LX

1000Base-CX

1000Base-T

Data Link Layer

Media Access Control(MAC)

Operation of CSMA/CD method
and framing

Logical Link Control

flow control, error control and
part of the framing duties

1985, Project 802

Enable intercommunication among equipment
from many manufacturers

MAC Sublayer

Access Method
-uses 1 persistent CSMA/CD

Physical Layer

Physical Layer Signaling

Medium Attachment Unit

Medium-Dependent Interface

Attachment Unit Interface