Chapter 6
The Link Layer
and LANs
A note on the use of these PowerPoint slides:
We’re making these slides freely available to all (faculty, students,
readers). They’re in PowerPoint form so you see the animations; and
can add, modify, and delete slides (including this one) and slide content
to suit your needs. They obviously represent a lot of work on our part.
In return for use, we only ask the following:
If you use these slides (e.g., in a class) that you mention their
source (after all, we’d like people to use our book!)
If you post any slides on a www site, that you note that they are
adapted from (or perhaps identical to) our slides, and note our
copyright of this material.
Computer Network
For a revision history, see the slide note for this page.
Top-Down Approac
Thanks and enjoy! JFK/KWR 8th edition
All material copyright 1996-2020
Jim Kurose, Keith Ross
J.F Kurose and K.W. Ross, All Rights Reserved Pearson, 2020
,Link layer and LANs: our goals
understand principles instantiation, implemen
behind link layer services: of various link layer
• error detection, correction technologies
• sharing a broadcast channel:
multiple access
• link layer addressing
• local area networks:
Ethernet, VLANs
datacenter networks
,Link layer, LANs: roadmap
introduction
error detection, correction
multiple access protocols
LANs
• addressing, ARP
• Ethernet
• switches
• VLANs
a day in the life of a web
link virtualization: MPLS request
data center networking
, Link layer: introduction
terminology: mobile network
hosts and routers: nodes national or globa
communication channels that
connect adjacent nodes along
communication path: links
• wired
• wireless
• LANs
layer-2 packet: frame,
encapsulates datagram
link layer has responsibility of
transferring datagram from one node enterprise
network
to physically adjacent node over a link
The Link Layer
and LANs
A note on the use of these PowerPoint slides:
We’re making these slides freely available to all (faculty, students,
readers). They’re in PowerPoint form so you see the animations; and
can add, modify, and delete slides (including this one) and slide content
to suit your needs. They obviously represent a lot of work on our part.
In return for use, we only ask the following:
If you use these slides (e.g., in a class) that you mention their
source (after all, we’d like people to use our book!)
If you post any slides on a www site, that you note that they are
adapted from (or perhaps identical to) our slides, and note our
copyright of this material.
Computer Network
For a revision history, see the slide note for this page.
Top-Down Approac
Thanks and enjoy! JFK/KWR 8th edition
All material copyright 1996-2020
Jim Kurose, Keith Ross
J.F Kurose and K.W. Ross, All Rights Reserved Pearson, 2020
,Link layer and LANs: our goals
understand principles instantiation, implemen
behind link layer services: of various link layer
• error detection, correction technologies
• sharing a broadcast channel:
multiple access
• link layer addressing
• local area networks:
Ethernet, VLANs
datacenter networks
,Link layer, LANs: roadmap
introduction
error detection, correction
multiple access protocols
LANs
• addressing, ARP
• Ethernet
• switches
• VLANs
a day in the life of a web
link virtualization: MPLS request
data center networking
, Link layer: introduction
terminology: mobile network
hosts and routers: nodes national or globa
communication channels that
connect adjacent nodes along
communication path: links
• wired
• wireless
• LANs
layer-2 packet: frame,
encapsulates datagram
link layer has responsibility of
transferring datagram from one node enterprise
network
to physically adjacent node over a link
