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3- Broadband
3.1 Broadband Solution Types
3.2 PPPoE
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3.1 Broadband Solution Types
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BROADBAND OVERVIEW
• Wide bandwidth data transmission
with an ability to simultaneously
transport multiple signals and traffic
types
• Medium can be coaxial cable, optical
fiber, radio or twisted pair
• Mostly used for high-speed internet
access
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DOCSIS
• International telecommunications
standard that permits the addition of
high-bandwidth data transfer to an
existing cable TV system
• CMTS (Cable Modem Termination
System, like DSLAM) and CM (Cable
Modem) are the main components of
the system
• CMTS -> ISP , CM -> Customer side
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xDSL
• Family of technologies that are used to
transmit digital data over telephone lines
• ADSL -> Asymmetric , SDSL -> Symetric
• Provides communication up to 5.5
kilometers
• DSLAM and modem are the main
components of the system
• DSLAM -> ISP , Modem -> Customer
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xDSL CONNECTION
• DSLAM and modem are the main components of the system
• DSLAM combines individual DSL connections from users into
one high-capacity link to an ISP (May place in ISP building,
on a street or in the apartment)
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SPLITTER
• Used for seperating voice and data signals in DSL
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WIRELESS BROADBAND TECHNOLOGIES
• Wi-Fi
• Wi-MAX : Can provide coverage to an
area as large as 3,000 square miles
• Cellular ( 3G, 4G, LTE) : Mobile
connection
• Satellite : Expensive solution
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3.2 PPPoE
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PPPoE Overview
• Network protocol for encapsulating PPP
frames inside Ethernet frames
• Solution for tunneling packets over the
DSL connection to the ISP's IP network,
and from there to the rest of the Internet
• Typical use of PPPoE involves leveraging
the PPP facilities for authenticating the
user with PAP or CHAP
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PPPoE CONFIGURATION
• Dialer pool numbers must match
R1 (Customer) R2 (ISP)
10.1.3.1 10.1.3.2PPP TUNNEL
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VERIFYING PPPoE CONFIGURATION
• ISP router automatically assigns IP address to R1's dealer interface
R1 (Customer) R2 (ISP)
10.1.3.1 10.1.3.2PPP TUNNEL
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VERIFYING PPPoE CONFIGURATIONR1 (Customer) R2 (ISP)
10.1.3.1 10.1.3.2PPP TUNNEL
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VERIFYING PPPoE CONFIGURATIONR1 (Customer) R2 (ISP)
10.1.3.1 10.1.3.2PPP TUNNEL
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TROUBLESHOOTING PPPoE CONFIGURATION
R1 (Customer) R2 (ISP)
10.1.3.1 10.1.3.2PPP TUNNEL
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