Fast node/link failure detection using software-defined-networking

摘要

Embodiments of the present invention include systems and methods for detecting failure of node, link, or both, in a network. The system for detecting failure of nodes, link, or both, in a network includes an agent that monitors status of one or more applications on a first end node, sends a status notice related to the applications on the first end node to a controller through an input-output (IO) port, receives status information of at least one application on a second end node from the controller through the IO port, and stores the status information into a memory. When the agent receives a query from an application on the first end node, it looks up the status information in the memory to check aliveness of an application on the second end node.

主权项

1. An agent installed in a first end node and communicatively coupled to a controller and to a second end node via one or more switches in a network, the agent performing the steps comprising:
monitoring status of one or more applications on the first end node; sending a status notice that includes information regarding at least a portion of the monitored status of the one or more applications on the first end node to the controller; receiving status information of at least one application on the second end node from the controller; and storing the status information into a memory.