Verizon Digital Media Services Inc.

Edgecast Networks, Inc.

Hossein Lotfi

Alexander A Kazerani

Robert J Peters

Derek Shiell

Amir Reza Khakpour

Timothy W Hartrick

Juan Bran

Thomren Boyd

Marc Hasson

Some embodiments set forth a control message header rewriting methodology. Incoming packets are inspected to identify control messages. Each control message is then inspected to determine whether it originates from a client engaged in a session with a server or from an intermediary node along the path connecting the client and the server. The determination is predicated on a comparison of the addressing provided in the control message header and the addressing provided in the offending packet header, wherein the offending packet is the packet that triggers the intermediary node to issue the control message. If the addressing differs, the header addressing of control message is rewritten using the header addressing of the offending packet. Otherwise, a session table lookup is performed to identify which session the control message is directed to based in part on a hash of the control message header addressing.

Adapting network control messaging for anycast reliant platforms

Some embodiments provide a transport session discovery protocol that enables load balancing devices of an Anycast reliant distributed platform to route legacy control messages to destinations within the distributed platform that manage the sessions or connections implicated by the legacy control messages, even when the implicated sessions or connections cannot be directly identified from the control message headers. The modified load balancing operation as a result of the transport session discovery protocol involves identifying a message header mapping to an unrecognized session or connection, extracting session or connection identifying information and an error or condition from the message body, generating a new messaging construct to encapsulate the extracted information, and multicasting the messaging construct to other load balancing devices operating within a common point-of-presence. The load balancing device having knowledge of the server managing the implicated session then routes the error or condition to that server.

Control message routing within anycast reliant platforms

A test network is provided to test updates to configurations and resources of a distributed platform and to warm servers prior to their deployment in the distributed platform. The test network tests and warms using real-time production traffic of the distributed platform in a manner that does not impact users or performance of the distributed platform. At least one distributed platform caching server passes content requests that it receives to the test network using a connectionless protocol. The test network includes a test server that is loaded with any of a configuration or resource under test or whose cache is to be loaded prior to the server's deployment into the distributed platform. The test network also includes a replay server that receives the requests from the caching server, distributes the requests to the test server, and monitors the test server responses.

Distributed platform test network

Growing community of inventors

Los Angeles, CA, United States of America

Hossein Lotfi