Ethernet Overview
Except on the first page, right running head:
Heading1 or Heading1NewPage text (automatic)
153
Alcatel-Lucent
Beta
Beta
CLI Configuration Guide
E
THERNET
T
ERMINOLOGIES
Ethernet follows a simple set of rules that govern its basic operation. The basics of
Ethernet terminology include:
•
Medium
- Ethernet devices attach to a common medium that provides a path
along which the electronic signals travel. Historically, this medium has been
coaxial copper cable, but today it is more commonly a twisted pair or fiber optic
cabling.
•
Segment
- A single shared medium as an Ethernet segment.
•
Node
- Devices that attach to that segment are stations or nodes.
•
Frame
- The nodes communicate in short messages called frames, which are
variably sized chunks of information. Each frame must include, for example, both
a destination address and a source address, which identify the recipient and the
sender of the message. The address uniquely identifies the node. No two
Ethernet devices should ever have the same address.
•
Ethernet addressing -
Ethernet addressing implements a broadcast address. A
frame with a destination address equal to the broadcast address, is intended for
every node on the network, and every node will both receive and process this type
of frame.
Figure 4: Ethernet Network
For example, in the figure above, when computer B transmits to printer C,
computers A and D will also receive and examine the frame. However, when a
station first receives a frame, it checks the destination address to see if the frame
is intended for itself. If it is not, the station discards the frame without even
examining its contents.
Summary of Contents for OmniAccess 700
Page 38: ...Left running head Chapter name automatic 12 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 176: ...Left running head Chapter name automatic 150 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 260: ...Left running head Chapter name automatic 234 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 434: ...Left running head Chapter name automatic 408 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 464: ...Left running head Chapter name automatic 438 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 638: ...Left running head Chapter name automatic 612 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 940: ...Left running head Chapter name automatic 914 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 1002: ...Left running head Chapter name automatic 976 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 1120: ...Left running head Chapter name automatic 2 Beta Beta CLI Configuration Guide Alcatel Lucent ...