Abstract: Some embodiments provide an optimized multi-hit caching technique that minimizes the performance impact associated with caching of long-tail content while retaining much of the efficiency and minimal overhead associated with first hit caching in determining when to cache content. The optimized multi-hit caching utilizes a modified bloom filter implementation that performs flushing and state rolling to delete indices representing stale content from a bit array used to track hit counts without affecting identification of other content that may be represented with indices overlapping with those representing the stale content. Specifically, a copy of the bit array is stored prior to flushing the bit array so as to avoid losing track of previously requested and cached content when flushing the bit arras and the flushing is performed to remove the bit indices representing stale content from the bit array and to minimize the possibility of a false positive.

Abstract: Some embodiments provide systems and methods for implementing discrete mapping for targeted caching in a carrier network. In some embodiments, discrete mapping is implemented using a method that caches content from a content provider to a caching server. The method modifies a DNS entry at a particular DNS server to resolve a request that identifies either a hostname or a domain for the content provider to an address of the caching server so that the requested content is passed from the cached content of the caching server and not the source content provider. In some embodiments, the particular DNS server is a recursive DNS server, a local DNS server of the carrier network, or a DNS server that is not authoritative for the hostname or domain of the content provider.

Abstract: Some embodiments provide a capacity management agent that modifies content requests to adjust bandwidth consumption when streaming requested content from a content provider to a requesting user. The modifications include modifying a URL or header information of the request. The agent performs a process that receives a request for content of a content provider. The process identifies a parameter of the carrier network and modifies the request when the parameter satisfies a threshold. The process passes the request to the content provider and the content provider provides content that consumes a first set of resources in response to an unmodified request and a second set of resources in response to a modified request. When the parameter identifies congestion, the first set of resources is greater than the second set of resources. When the condition parameter identifies underutilization, the first set of resources is less than the second set of resources.

Abstract: The invention relates to systems and methods of global load balancing in a content delivery network having a plurality of edge servers which may be distributed across multiple geographic locations. According to one aspect of the invention, a global load balancing system includes a first load balancing server for receiving a packet requesting content to be delivered to a client, selecting one of the plurality of edge servers to deliver the requested content to the client, and forwarding the packet across a network connection to a second load balancing server, which forwards the packet to the selected edge server. The selected edge server, in response to receiving the packet, sends across a network connection the requested content with an address for direct delivery to the client, thereby allowing the requested content to be delivered to the client while bypassing a return path through the first load balancing server.

Abstract: Some embodiments provide an end-to-end federated CDN solution that assimilates a transparent caching server that is operated by a transparent caching server operator into a CDN that independently operates CDN caching servers. Specifically, the logs from the transparent caching server are assimilated into the CDN by aggregating the logs from the transparent caching server and processing the transparent caching server logs to identify network usage for content of a CDN content provider customer that is delivered by the transparent caching server. The network usage is then combined with the network usage that tracked by the CDN caching servers in order to provide comprehensive report metrics for the content provider customer and to bill the content provider customer for all network usage related to delivering the content provider customer's content irrespective of whether the content was delivered by a transparent caching server or a CDN caching server.

Abstract: Some embodiments provide different frameworks for seamlessly issuing and executing commands across servers of different federation participants. Each framework facilitates issuance and execution of a command that originates from a first federation participant and that is intended for execution at servers of a second federation participant. In some embodiments, a framework implements a method for enabling command interoperability between distributed platforms that each operate a set of servers on behalf of content providers. The method involves receiving a command targeting a particular configuration that a first distributed platform deploys to a server that is operated by a second distributed platform. The method identifies the server of the second distributed platform that is deployed with the particular configuration.

Abstract: Some embodiments provide an optimized multi-hit caching technique that minimizes the performance impact associated with caching of long-tail content while retaining much of the efficiency and minimal overhead associated with first hit caching in determining when to cache content. The optimized multi-hit caching utilizes a modified bloom filter implementation that performs flushing and state rolling to delete indices representing stale content from a bit array used to track hit counts without affecting identification of other content that may be represented with indices overlapping with those representing the stale content. Specifically, a copy of the bit array is stored prior to flushing the bit array so as to avoid losing track of previously requested and cached content when flushing the bit arrays and the flushing is performed to remove the bit indices representing stale content from the bit array and to minimize the possibility of a false positive.

Abstract: Some embodiments provide different frameworks for seamlessly issuing and executing commands across servers of different federation participants. Each framework facilitates issuance and execution of a command that originates from a first federation participant and that is intended for execution at servers of a second federation participant. In some embodiments, a framework implements a method for enabling command interoperability between distributed platforms that each operate a set of servers on behalf of content providers. The method involves receiving a command targeting a particular configuration that a first distributed platform deploys to a server that is operated by a second distributed platform. The method identifies the server of the second distributed platform that is deployed with the particular configuration.

Abstract: The invention relates to systems and methods of global load balancing in a content delivery network having a plurality of edge servers which may be distributed across multiple geographic locations. According to one aspect of the invention, a global load balancing system includes a first load balancing server for receiving a packet requesting content to be delivered to a client, selecting one of the plurality of edge servers to deliver the requested content to the client, and forwarding the packet across a network connection to a second load balancing server, which forwards the packet to the selected edge server. The selected edge server, in response to receiving the packet, sends across a network connection the requested content with an address for direct delivery to the client, thereby allowing the requested content to be delivered to the client while bypassing a return path through the first load balancing server.

Abstract: Some embodiments provide different frameworks that implement conflict avoidance systems and methods for ensuring uniqueness in identifying assets for different customers that are deployed to server capacity of one or more distributed platforms participating in a federation. Specifically, different frameworks are provided whereby the distributed platforms authorize use of a domain before configuring the domain to identify assets of a customer. A method performed in one such framework includes receiving a domain that is specified for identifying assets of a first customer belonging to a first distributed platform of the federation. The method determines whether the domain conflicts with a domain that is configured by a second distributed platform of the federation. The method then communicates with the first distributed platform (i) to configure the received domain when there is no conflict and (ii) to prevent the first distributed platform from configuring the received domain when there is a conflict.

Abstract: The invention relates to systems and methods of global load balancing in a content delivery network having a plurality of edge servers which may be distributed across multiple geographic locations. According to one aspect of the invention, a global load balancing system includes a first load balancing server for receiving a packet requesting content to be delivered to a client, selecting one of the plurality of edge servers to deliver the requested content to the client, and forwarding the packet across a network connection to a second load balancing server, which forwards the packet to the selected edge server. The selected edge server, in response to receiving the packet, sends across a network connection the requested content with an address for direct delivery to the client, thereby allowing the requested content to be delivered to the client while bypassing a return path through the first load balancing server.

Abstract: Some embodiments provide different frameworks for seamlessly issuing and executing commands across servers of different federation participants. Each framework facilitates issuance and execution of a command that originates from a first federation participant and that is intended for execution at servers of a second federation participant. In some embodiments, a framework implements a method for enabling command interoperability between distributed platforms that each operate a set of servers on behalf of content providers. The method involves receiving a command targeting a particular configuration that a first distributed platform deploys to a server that is operated by a second distributed platform. The method identifies the server of the second distributed platform that is deployed with the particular configuration.

Abstract: The invention relates to systems and methods of global load balancing in a content delivery network having a plurality of edge servers which may be distributed across multiple geographic locations. According to one aspect of the invention, a global load balancing system includes a first load balancing server for receiving a packet requesting content to be delivered to a client, selecting one of the plurality of edge servers to deliver the requested content to the client, and forwarding the packet across a network connection to a second load balancing server, which forwards the packet to the selected edge server. The selected edge server, in response to receiving the packet, sends across a network connection the requested content with an address for direct delivery to the client, thereby allowing the requested content to be delivered to the client while bypassing a return path through the first load balancing server.

Abstract: Some embodiments provide different frameworks that implement conflict avoidance systems and methods for ensuring uniqueness in identifying assets for different customers that are deployed to server capacity of one or more distributed platforms participating in a federation. Specifically, different frameworks are provided whereby the distributed platforms authorize use of a domain before configuring the domain to identify assets of a customer. A method performed in one such framework includes receiving a domain that is specified for identifying assets of a first customer belonging to a first distributed platform of the federation. The method determines whether the domain conflicts with a domain that is configured by a second distributed platform of the federation. The method then communicates with the first distributed platform (i) to configure the received domain when there is no conflict and (ii) to prevent the first distributed platform from configuring the received domain when there is a conflict.

Abstract: Some embodiments provide different frameworks for seamlessly issuing and executing commands across servers of different federation participants. Each framework facilitates issuance and execution of a command that originates from a first federation participant and that is intended for execution at servers of a second federation participant. In some embodiments, a framework implements a method for enabling command interoperability between distributed platforms that each operate a set of servers on behalf of content providers. The method involves receiving a command targeting a particular configuration that a first distributed platform deploys to a server that is operated by a second distributed platform. The method identifies the server of the second distributed platform that is deployed with the particular configuration.

Abstract: This invention is related to content delivery systems and methods. In one aspect of the invention, a content provider controls a replacement process operating at an edge server. The edge server services content providers and has a data store for storing content associated with respective ones of the content providers. A content provider sets a replacement policy at the edge server that controls the movement of content associated with the content provider, into and out of the data store. In another aspect of the invention, a content delivery system includes a content server storing content files, an edge server having cache memory for storing content files, and a replacement policy module for managing content stored within the cache memory. The replacement policy module can store portions of the content files at the content server within the cache memory, as a function of a replacement policy set by a content owner.

Abstract: This invention is related to content delivery systems and methods. In one aspect of the invention, a content provider controls a replacement process operating at an edge server. The edge server services content providers and has a data store for storing content associated with respective ones of the content providers. A content provider sets a replacement policy at the edge server that controls the movement of content associated with the content provider, into and out of the data store. In another aspect of the invention, a content delivery system includes a content server storing content files, an edge server having cache memory for storing content files, and a replacement policy module for managing content stored within the cache memory. The replacement policy module can store portions of the content files at the content server within the cache memory, as a function of a replacement policy set by a content owner.

Abstract: This invention is related to content delivery systems and methods. In one aspect of the invention, a content provider controls a replacement process operating at an edge server. The edge server services content providers and has a data store for storing content associated with respective ones of the content providers. A content provider sets a replacement policy at the edge server that controls the movement of content associated with the content provider, into and out of the data store. In another aspect of the invention, a content delivery system includes a content server storing content files, an edge server having cache memory for storing content files, and a replacement policy module for managing content stored within the cache memory. The replacement policy module can store portions of the content files at the content server within the cache memory, as a function of a replacement policy set by a content owner.

Abstract: This invention is related to content delivery systems and methods. In one aspect of the invention, a content provider controls a replacement process operating at an edge server. The edge server services content providers and has a data store for storing content associated with respective ones of the content providers. A content provider sets a replacement policy at the edge server that controls the movement of content associated with the content provider, into and out of the data store. In another aspect of the invention, a content delivery system includes a content server storing content files, an edge server having cache memory for storing content files, and a replacement policy module for managing content stored within the cache memory. The replacement policy module can store portions of the content files at the content server within the cache memory, as a function of a replacement policy set by a content owner.

Abstract: This invention is related to content delivery systems and methods. In one aspect of the invention, a content provider controls a replacement process operating at an edge server. The edge server services content providers and has a data store for storing content associated with respective ones of the content providers. A content provider sets a replacement policy at the edge server that controls the movement of content associated with the content provider, into and out of the data store. In another aspect of the invention, a content delivery system includes a content server storing content files, an edge server having cache memory for storing content files, and a replacement policy module for managing content stored within the cache memory. The replacement policy module can store portions of the content files at the content server within the cache memory, as a function of a replacement policy set by a content owner.