mc multicast overview
DESCRIPTION
TRANSCRIPT
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Multicasting Overview
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Benefits of Multicasting
•Scalability
•Differentiate offering
•Improve quality of broadcast
•Economic
•Build barriers to entry
•Reduced turnover/ “Stickier” sale
•Access to exclusive content
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The Yahoo! broadcast Network
MULTICAST
Spri
nt
MCI
GTE
UUN
et
UNICAST
Content Out
Satellite FeedVideo
FeedAudio Feed
Analog
Content In
Yahoo! broadcast
AT&
T
Private Frame Relayand T-1 AggregationNetwork
Digital
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Infrastructure with Peering & Multicasting
Satellite Feed
VideoFeed
Audio Feed
AnalogDigital
Yahoo! broadcast
Internet
MulticastAffiliates
MulticastAffiliates
SprintGTEAT&T
Cable and Wireless
WorldCom/UUNet
Level 3
Satellite Link Direct Peering Partners
CLECSILECSBroadband Providers/Affiliates
ISPs
Multicast StreamsEvents
Clients, End Users,
Enterprises
Enterprise Connection
Unicast
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The Yahoo! broadcast Network
Combination of Centralized content aggregation and distribution and distributed server network
• Multi-homed– Control– Greatest reach possible– Highest quality
experience
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Typical Unicast Model
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Multicasting Via Tunnels
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Multicasting Via Peering
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Typical ISP Network
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The ISP NetworkThe Terminal Server
The terminal server is the point of entry for the dial access client
• Most typically Deployed Terminal Servers:– Cisco AS 5000 Series– Ascend Max Series 2000,
4000, 6000, TNT– 3Com USR Total Control
Series with HiperArc Processor Cards
– Lucent Portmaster Series
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The ISP Network: The Switch
The switch is the base point of distribution within a LAN environment
Common Switch Vendors:
• Cisco• 3 Com• Nortel
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The ISP Network: The Border Router
The border Router is the point of access for content delivery
• Common Routers:– Cisco– Nortel– Ascend TNT
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The ISP Network:Radius
Radius is the typical platform used for authentication & accounts is dial access networks
• Common Radius Implementations– Livingston– Radius (USA)– 3rd party
• Funk steel belted• Emerald
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Multicasting Overview
October 28, 1999