Failover handling in a content node of a content delivery network
First Claim
1. A method of operating a content node in a content delivery system to handle communications transitioned from a second content node, the method comprising:
- in response to obtaining a communication from a control node, the communication corresponding to a content request issued by an end user device previously handled by a second content node, determining if the communication includes a synchronization packet and identifying connection information for the communication;
if the communication does not include a synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in at least one data structure;
if a match exists, handling content delivery for the end user device;
if a match does not exist, forwarding the communication to the second content node.
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Accused Products
Abstract
Described herein are methods, systems, and software for accommodating failover of a content node in a content delivery network. In one example, a method of operating a content node includes receiving a communication for an end user device from a control node, wherein an interrupted content node previously handled the communication. The method further includes determining if the communication includes a synchronization packet and identifying connection information for the communication. The method also provides, if the communication includes a synchronization packet, accepting the communication and handling delivery for the end user device. The method also includes, if the communication does not include the synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in a flow table, and handling the communication based on the match.
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Citations
20 Claims
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1. A method of operating a content node in a content delivery system to handle communications transitioned from a second content node, the method comprising:
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in response to obtaining a communication from a control node, the communication corresponding to a content request issued by an end user device previously handled by a second content node, determining if the communication includes a synchronization packet and identifying connection information for the communication; if the communication does not include a synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in at least one data structure; if a match exists, handling content delivery for the end user device; if a match does not exist, forwarding the communication to the second content node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer apparatus to operate a content node in a content delivery network, the computer apparatus comprising:
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one or more non-transitory computer readable storage media that store the processing instructions; processing instructions stored on the one or more non-transitory computer readable storage media that direct a processing system, when executed by the processing system, to; in response to obtaining a communication from a control node, the communication corresponding to a content request issued by an end user device previously handled by a second content node, determine if the communication includes a synchronization packet and identify connection information for the communication; if the communication does not include a synchronization packet, determine if a match exists between the connection information for the communication and connection information stored in at least one data structure; if a match exists, handle content delivery for the end user device; if a match does not exist, forward the communication to the second content node. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A content delivery network to transition communications to a content node from a second content node, the system comprising:
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a control node configured to; transfer a communication to the content node, the communication corresponding to a content request issued by an end user device previously handled by the second content node; and the content node configured to; receive the communication; determine if the communication includes a synchronization packet and identify connection information for the communication; if the communication does not include a synchronization packet, determine if a match exists between the connection information for the communication and connection information stored in at least one data structure; if a match exists, handle content delivery for the end user device; if a match does not exist, forward the communication to the second content node. - View Dependent Claims (17, 18, 19, 20)
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Specification