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Application - PowerPoint PPT Presentation


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Application. Transport. Network. you are here. Link. Physical. Network host-to-host. Link node-to-node frame-by-frame. Physical node-to-node bit-by-bit. 101101001000100101010. MAC Address. 90:AF:F4:CA:BA:03. Broadcast Address. FF:FF:FF:FF:FF:FF. Network. Link.

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Presentation Transcript
slide1

Application

Transport

Network

you are

here

Link

Physical

slide2

Network

host-to-host

Link

node-to-node

frame-by-frame

Physical

node-to-node

bit-by-bit

101101001000100101010

mac address

MAC Address

90:AF:F4:CA:BA:03

broadcast address

Broadcast Address

FF:FF:FF:FF:FF:FF

link layer addressing

Network

Link

Link Layer Addressing

Network

Link

why two addresses

Why Two Addresses?

178.16.23.51

90:AF:F4:CA:BA:03

link layer addressing8

Network

Link

Link Layer Addressing

Network

Link

slide9

ARP

Address Resolution Protocol

slide10

ARP

“What is the MAC address of 137.132.141.199?”

slide11

HEY! WHAT IS THE

MAC ADDRESS OF

137.132.141.199?

slide12

137.132.141.199..

That’s me!

not me

not me

slide13

The MAC address of

137.132.141.199

is

FB:CA:73:8A:9C:DD

slide16

DHCP

Dynamic Host

Configuration Protocol

dhcp discovery

DHCP discovery

“I NEED AN IP ADDRESS!”

dhcp server offers

DHCP server offers

“You can have 17.14.8.19 for 20 mins”

“You can have 17.14.9.89 for 1 hr”

:

dhcp request

DHCP request

“OK, let me have 17.14.8.19 for 20 mins”

dhcp ack

DHCP ACK

“Your IP is now 17.14.8.19 for 20 mins”

slide22

Application

DHCP

Transport

Network

ARP

Link

Physical