next-generation subscriber access methods presenter: donnovan wint technical marketing manager...
TRANSCRIPT
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Next-Generation Subscriber Access
Methods
Presenter: Donnovan Wint
Technical Marketing ManagerLucent Technologies
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Slide 2
DSL
Cable
0
2000000
4000000
6000000
8000000
10000000
12000000
14000000
16000000
Nu
mb
er
of
Ho
us
eh
old
s
1999 2000 2001 2002 2003
Year
Growth of High Speed Internet Access (North America)
Wireless Broadband Satellite DSL Cable
Access providers need to plan and prepare now to support the new
infrastructure that will be required to offer these high-speed services.
Key Growth Segments
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Slide 3
U.S. Market– Subscriber base with access cable - 25 million
– 5% use service today (non DOCSIS based)
– 10% by end of 2001 (DOCSIS based)
– Subscriber base with access xDSL - 20 million
– 5% use service today
– 7% - 10% by end of 2001
Target IP Addresses (Cable/DSL/ISP) worldwide– Year 2001 - 30 Million
– Year 2002 - 50 Million
Source: Network World
Automating the subscriber registration process and configuration of related broadband access devices is essential to the success of service providers.
Broadband Opportunity
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Slide 4
Service Provider Network
DSL FTTH (Fiber to the Home)
Cable
Wireless
Broadband Access Options
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Slide 5
Remote Client
2
3
4
5
6
DHCP/PPP
RADIUS
Corporate or
Internet Resources
RAS
2. Dial-out
3. Handshake4. Authentication
5. IP address negotiation
6. Access to resources
1
Internetor
Intranet
“SnailSpeed” - Dial Up Approach1. Modem connection
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Slide 6
Require no truck roll, that is:• Require no re-configuration by the user of IP stack
information.• Require no configuration of broadband access device at the
customer site.
Use industry-standard, low-cost Ethernet NICs to connect user’s PC to broadband access device.
Leverage “proven, existing” technologies if need be … (Web, TFTP, etc.)
What is Required to Be Successful
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Slide 7
Static IP Addressing
Point-to-Point over ATM (PPPoA)
Point-to-Point over Ethernet (PPPoE)
Dynamic Host Configuration Protocol (DHCP)
Broadband Architecture Options
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Slide 8
Most straightforward broadband IP configuration option
Requires re-configuration by the user of IP stack information
Requires configuration of broadband access device at the customer site
Least flexible broadband IP configuration option
Network modifications are difficult to implement
Most costly in the end to implement and maintain
Static IP Addressing Architecture Option
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Slide 9
PPP can be run over either an ATM (PPPoA) or an Ethernet (PPPoE) infrastructure.
Requires re-configuration by the user of IP stack information
Requires configuration of Broadband Access Device at the customer site
Does not work with cable modems
Can be COSTLY in the long run to implement and maintain
PPP Architecture Option
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Slide 10
IP
PPP
L2TP
PPP
ATM
IP
PPPoA
PPP
PPPoAL2TP
ATMATM VC, IP Tunnel,etc.
NSP/ISPPCService Gateway ATU-R (DSL Modem, etc.)
ATM
PPPoA Architecture Issues
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Slide 11
IP
PPP
L2TP
PPP
Ethernet
ATM
IP
PPPoE
PPP
PPPoEL2TP
Ethernet
ATM 10-BT 10-BT
Ethernet
ATM VC, IP Tunnel,etc.
NSP/ISPPCService Gateway ATU-R (DSL Modem, etc.)
PPPoE Architecture Issues
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Slide 12
NSP/ISP
Cable/DSL/ Broadband Access
Server
PC
PC
Hub
Consumers are accustomed to accessing the Internet through a fairly inexpensive modem requiring minimal configuration.
PPPoE Approach
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Slide 13
• Re-configuration by the user of IP stack information is required.
The user installs the PPPoE drivers
Typical PPP/PPPoE
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Slide 14
Does not require ANY re-configuration by the user of IP stack
Builds on the open system philosophy
Engineered from bottom-up, not a “forced fit” implementation
Centralized management; distributed functionality
DHCP Architecture Option
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Slide 15
DHCP Solution Components
DHCP Solution Components
DHCP Approach
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Slide 16
•Simple process•Customizable screens•Ability to leverage user-defined and customized authentication methods•Leverages existing and proven technologies…(Web, DNS, TFTP, etc.)
•Simple process•Customizable screens•Ability to leverage user-defined and customized authentication methods•Leverages existing and proven technologies…(Web, DNS, TFTP, etc.)
Typical DHCP Authentication
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Slide 17
•Select desired service•Service selected is stored in the directory server•Can implement callout to notify OSS system of selection•Selections are pre-defined
•Select desired service•Service selected is stored in the directory server•Can implement callout to notify OSS system of selection•Selections are pre-defined
Typical DHCP Service Selection
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Slide 18
C:\>ipconfig
Windows NT IP ConfigurationHost Name . . . . . . . . .. : donwint-nt.lucent.com
DNS Servers . . . . . . . . : 24.200.138.246 24.200.138.211
Node Type . . . . . . . . ... : HybridNetBIOS Scope ID. . . . . . : IP Routing Enabled. …. . . . : NoWINS Proxy Enabled. . . . . : NoNetBIOS Resolution Uses DNS : Yes
Ethernet adapter El9201:Description . . . . . . . . : 3Com EtherLink PCIPhysical Address. . . . . . : 00-B0-D2-56-27-F8DHCP Enabled. . . . . . . . : YesIP Address. . . . . .... .. . . : 24.200.138.173Subnet Mask . . . . .. . . . : 255.255.255.0Default Gateway . . . . . . : 24.200.138.1
DHCP Server . . . . .. . . . : 24.200.138.10
• NO re-configuration of IP stack information is required by the user.
•Simple•No new command to learn
Typical DHCP
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Slide 19
How Do They Compare
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Slide 20
Next-generation broadband access will provide huge business and growth opportunities for those who are properly prepared. Access providers need to plan and prepare now to support the new infrastructure that will be required to offer these high-speed services.
“Always on” high-speed Internet access, enhanced on-line gaming, personal videoconferencing, on-line shopping and banking, VPN telecommuting, and entertainment-on-demand services all require configuration of the access device and the end-user PCs in a way that is standards-based, vendor-independent, and reliable.
In preparing for tomorrow’s networks, providers need to consider several criteria when selecting a next-generation architecture, including implementing a standards-based solution, vendor interoperability, carrier-class reliability, true scalability, and manageability.
Summary
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Slide 21
Wrap Up
Q&A
For more information
www.qip.lucent.com