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The Bandwidth Explosion
And the network just can’t cope…
Existing Infrastructure
Bandwidth DemandPOOR user experience
P2PTV
(Joost etc.)
HTTP Video
(YouTube etc.)
P2P
Downloads
(BitTorrent etc.)
Demand for P2P and Video Creates Pressure
P4P targets: max delivery, minimize ISP pain
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New Technologies are Required
%of traffic
Time
Monetized P2P
Un-Monetized P2P
Internet video Can not
be throttled
Throttled using DPI
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Cache = Network Optimization Engine
CacheCache
Backbone
Core / POP
RouterRouter
Saves on bandwidth
Ensures & accelerates QoS
Reduces pressure on the network
Complements DPI install base
Out of main
traffic path
DPI
Defers infrastructure upgrades
![Page 5: P4P meeting Eitan Efron, VP BD eitane@oversi.com eitane@oversi.com January 2008](https://reader035.vdocuments.mx/reader035/viewer/2022062618/551511e3550346a80c8b5bd3/html5/thumbnails/5.jpg)
Caching = Up to 95% Savings !
CacheOut 3GbpsIn 250Mbps (80Mbps international)
X 20 value(95% BHR)
![Page 6: P4P meeting Eitan Efron, VP BD eitane@oversi.com eitane@oversi.com January 2008](https://reader035.vdocuments.mx/reader035/viewer/2022062618/551511e3550346a80c8b5bd3/html5/thumbnails/6.jpg)
Caching = Accelerated Performance
BitTorrent Cache acceleration example
High Definition (HD) Delivery Opportunity
Peers only With server With Cache
DWLD speed 65Kb/s 375Kb/s 9.2Mb/s
DWLD time 23 hours 4 hours 9 minutes
680MB, Maple Story Update
X 150 faster performance
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Cache = Monetization through Service Differentiation
GOLD 5 Mbps
SILVER 500 Kbps
BRONZE 50 Kbps
Charge Usersfor performance
Charge Content owners for delivery
500 GB
50 GB
10 GB
Cache
Users
SLA / Acceleration
HD 5 Mbps
SD 500 Kbps
basic best effort
Over the top content
ISP content
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P4P Modes
Peer
AppTracker iTracker
ISP
Internet 1 4
2
3 1. Peer query Tracker2. AppTracker quarries iTracker (3)3. iTracker sends peering suggestions (2)4. Tracker updates peers’ list
Peer
AppTracker
iTracker
ISP
Internet
1 4
2
3
Peer
iTracker AppTracker
ISP
Internet
1 4
2
3
A
B C
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iTracker May Increase Load on ISP Network
DSLAM CMTS CMTSCMTSCMTS
INT
ER
NE
TC
OR
EA
CC
ES
S
DSLAM DSLAM DSLAM
iTracker
AppTrackers
ISPDomain
Increase load on
limited & expensive Uplinks
internalPeerslist
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iTracker auto Cache Discovery Optimizes Network Performance
DSLAM CMTS CMTSCMTSCMTS
INT
ER
NE
TC
OR
EA
CC
ES
S
Cache
DSLAM DSLAM DSLAM
Relieve load on limited Uplinks
Single Cache can be located
at core
AppTrackers
iTracker
ISPDomain
No Uplink reciprocity
internalPeers+ cache
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iTracker Implementing Cache Discovery
iTracker/AppTracker provide users with a list of Good
Peers & Cache ServersGood Peers =
Users in same POP rangeUsers with higher Uplink capacities Users with lower infrastructure cost metrics Caches in ISP cloud
POPNOC
Enables full control by ISP to optimize to ISP infrastructure
constraints E.g. MSO/WiMAX operators with limited uplinks capacity will want to reduce load on peer uplinks and increase use of Caching
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iTracker + Cache Field Experience
iTracker + cache discovery
Introduced
200% increase in performance
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Suggested iTracker Cache Discovery Format
Peer
AppTracker iTracker
ISP
Internet 1 4
2
3
A
Map• IP range -> POP, “cost” metrics, Good Peers• IP range -> Cache servers + Vendor Specific Data (VSD)
P4P iTracker
ISP/Vendor DB update
A. Get Map (iTracker query)
AppTracker
Additional compilation
B. Get vendor specific cache locationGetServers(IP,hash,VSD, protocol)
iTracker query(Get Map)
Vendor A
Vendor B
Vendor Specificplug-ins
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Summary
Cache = relives the load on the network +
sustains/improves QoE + new monetization
opportunities, over existing ISP infrastructure
iTrackers cache discovery = improves savings and
user experience by additional 200%
Further network optimization can occur through Additional caching levels (e.g. aggregation, Access)
Automatic Cache discovery embedded at Client level (e.g. where P4P is not implemented), e.g. BitTorrent CDP
Cache + iTracker + DPI DPI throttles only traffic in local caching devices and local peers
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Meeting Customers’ Demands in
the New Digital Media Age
www.oversi.com
Thank you for listening.
Energize Your Network