Difference between revisions of "CCNA Explorer 4 Accessing the Wan"

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*Channel Service Unit/Data Service Unit
 
== WAN standarder ==
 
== WAN standarder ==
 
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|[[Image:Exp4wan16.png|800px|left|thumb|HDLC frame.]]
 
|[[Image:Exp4wan16.png|800px|left|thumb|HDLC frame.]]
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*'''Flag''' - 01111110 Start and end delimiter
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*'''Address''' -  Not needed but still present on p2p links
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*'''Control''' - Is it network traffic or control data
 
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|[[Image:Exp4wan17.png|800px|left|thumb|WAN typer i CCNA]]
 
|[[Image:Exp4wan17.png|800px|left|thumb|WAN typer i CCNA]]
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== WAN typer ==
 
== WAN typer ==
 
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== Seriel kommunikation ==
 
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|[[Image:Exp4wan31.png|800px|left|thumb|Seriel kommunikation]]
 
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|[[Image:Exp4wan32.png|800px|left|thumb|RS232 (Console port, COM port, WAN port (Synkron, asynkron)]]
 
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|[[Image:Exp4wan33.png|800px|left|thumb|TDM ]]
 
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|[[Image:Exp4wan34.png|800px|left|thumb|TDM statistisk]]
 
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|[[Image:Exp4wan35.png|800px|left|thumb|ISDN]]
 
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|[[Image:Exp4wan36.png|800px|left|thumb|USA: Sonet Europa: SDH]]
 
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|[[Image:Exp4wan37.png|800px|left|thumb|PDH multiplexing (Amerikansk)]]
 
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|[[Image:Exp4wan38.png|800px|left|thumb|PDH multiplexing (Amerikansk)]]
 
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[[Category:CCNA]]

Latest revision as of 23:22, 30 January 2011

Wans
Small Office home - Lille kontor
Campus - Hovedkontor
Branch - Filialer
Distributed
Enterprise Arkitektur
Enterprise Arkitektur
Enterprise Arkitektur
Eksempel
OSI og lag 2 WAN's
Udbyder og kundeplaceret udstyr (Demarcation Point)
WAN enheder
  • Channel Service Unit/Data Service Unit

WAN standarder

Fysiske standarder
Fysiske standarder
Data Link protokoller
HDLC frame.
  • Flag - 01111110 Start and end delimiter
  • Address - Not needed but still present on p2p links
  • Control - Is it network traffic or control data
WAN typer i CCNA
Amerikanske og Europæiske standarder ofte forskellige
Linie hastigheder

WAN typer

ISDN
X.25
Frame Relay
ATM
DSL
Cable
Wireless
VPN
VPN
Metro Ethernet
WAN typer 1
WAN typer 2
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