Akamai Technologies, Inc.

Massachusetts Institute of Technology

Other

F Thomson Leighton

Daniel M Lewin

Matthew S Levine

Andrew F Champagne

Charles E Gero

Ravi Sundaram

David R Karger

Adrian Soviani

Eric Lehman

Michael M Afergan

Anne E Lewin, Legal Representative

Robert D Kleinberg

Rina Panagrahy

Guy Podjarny

Jay Parikh

Bruce Maggs

Andrew Parker

Rizwan S Dhanidina

William R Law

Mor Harchol-Balter

Brian J Mancuso

Kristofer Alexander

Timothy P Johnson

Robert Neville

Ken G Iwamoto

David M Shaw

Srikanth Thirumalai

Rina Panigrahy

Hariharan Rahul

Yoav O Yerushalmi

Arthur Wagner Berger

Justin J Sheehy

Silvina Hanono-Wachman

Rizwan S Dhanldina

Hariharan Shankar Rahul

Andrian Soviani

Madhukar R Korupolu

Jay Gunvantrai Parikh

Stream-based data deduplication is provided in a multi-tenant shared infrastructure but without requiring 'paired' endpoints having synchronized data dictionaries. Data objects processed by the dedupe functionality are treated as objects that can be fetched as needed. As such, a decoding peer does not need to maintain a symmetric library for the origin. Rather, if the peer does not have the chunks in cache that it needs, it follows a conventional content delivery network procedure to retrieve them. In this way, if dictionaries between pairs of sending and receiving peers are out-of-sync, relevant sections are then re-synchronized on-demand. The approach does not require that libraries maintained at a particular pair of sender and receiving peers are the same. Rather, the technique enables a peer, in effect, to “backfill” its dictionary on-the-fly. On-the-wire compression techniques are provided to reduce the amount of data transmitted between the peers.

Stream-based data deduplication with peer node prediction

Stream-based data deduplication is provided in a multi-tenant shared infrastructure but without requiring 'paired' endpoints having synchronized data dictionaries. Data objects processed by the dedupe functionality are treated as objects that can be fetched as needed. As such, a decoding peer does not need to maintain a symmetric library for the origin. Rather, if the peer does not have the chunks in cache that it needs, it follows a conventional content delivery network procedure to retrieve them. In this way, if dictionaries between pairs of sending and receiving peers are out-of-sync, relevant sections are then re-synchronized on-demand. The approach does not require that libraries maintained at a particular pair of sender and receiving peers are the same. Rather, the technique enables a peer, in effect, to 'backfill' its dictionary on-the-fly. On-the-wire compression techniques are provided to reduce the amount of data transmitted between the peers.

Stream-based data deduplication with cache synchronization

An Internet infrastructure delivery platform (e.g., operated by a service provider) provides an overlay network (a server infrastructure) that is used to facilitate 'second screen' end user media experiences. In this approach, first media content, which is typically either live on-demand, is being rendered on a first content device (e.g., a television, Blu-Ray disk or another source). That first media content may be delivered by servers in the overlay network. One or multiple end user second content devices are then adapted to be associated with the first content source, preferably, via the overlay network, to facilitate second screen end user experiences (on the second content devices).

Connected-media end user experience using an overlay network

An Internet infrastructure delivery platform (e.g., operated by a service provider) provides an overlay network (a server infrastructure) that is used to facilitate 'second screen' end user media experiences. In this approach, first media content, which is typically either live on-demand, is being rendered on a first content device (e.g., a television, Blu-Ray disk or other source). That first media content may be delivered by servers in the overlay network. One or multiple end user second content devices are then adapted to be associated with the first content source, preferably, via the overlay network, to facilitate second screen end user experiences (on the second content devices).

A content delivery network (CDN) typically includes a mapping system for directing requests to CDN servers. One or more peer machines become associated with the CDN, and the CDN mapping system is then used to enable a given peer to locate another peer in the P2P network, and/or a CDN server. Using this hybrid approach, CDN customer content may be delivered from the CDN edge network, from the P2P network, or from both networks. In one embodiment, customer content is uploaded to the CDN and stored in the edge network, or in a storage network associated therewith. The CDN edge network is then used to prime the P2P network, which may be used to take over some of the content delivery requirements for the customer content. The decision of whether to use edge network or peer network resources for delivery may be based on load and traffic conditions.

Hybrid content delivery network (CDN) and peer-to-peer (P2P) network

Using cryptographic techniques, sensitive data is protected against disclosure in the event of a compromise of a content delivery network (CDN) edge infrastructure. These techniques obviate storage and/or transfer of such sensitive data, even with respect to payment transactions that are being authorized or otherwise enabled from CDN edge servers.

Method and system for handling sensitive data in a content delivery network

Network architecture supports hosting and content distribution on a global scale. The architecture allows a Content Provider to replicate and serve its most popular content at an unlimited number of points throughout the world. The inventive framework comprises a set of servers operating in a distributed manner. The actual content to be served is preferably supported on a set of hosting servers (sometimes referred to as ghost servers). This content comprises HTML page objects that, conventionally, are served from a Content Provider site. A base HTML document portion of a Web page is served from the Content Provider's site while one or more embedded objects for the page are served from the hosting servers, preferably, those hosting servers near the client machine. By serving the base HTML document from the Content Provider's site, the Content Provider maintains control over the content.

Global hosting system

A method for Internet delivery in a delivery network established at network locations, the delivery network comprising a plurality of content servers for serving resources. The servers include a plurality of subsets, each subset being located at one of a plurality of Internet data centers. For each Internet Protocol (IP) address block from which requests for content resources are expected to be received, the method generates a candidate list of data centers to be used to service the requests. For the IP address block, the method selects at least one of the data centers from the candidate list. The selected Internet data center for the IP address block is written into a network map. In response to a DNS query, the map is used to identify one of the Internet data centers from the candidate list to be used to service a request for a content resource.

Network performance monitoring in a content delivery system

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Newtonville, MA, United States of America

F Thomson Leighton