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.
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 control node includes receiving content requests issued by end user devices. The method further provides, for at least a first content request, mapping a first connection between a first end user device and a first content node, the first connection defined by at least a network address of the first end user device and a virtual next hop network address, and directing traffic associated with the first connection to the first content node using at least the virtual next hop network address. The method also includes identifying a service interruption associated with the first content node and, responsive to the service interruption, identifying a second content node to handle the communications for the first connection.