US Patent 8346919 Failover and migration for full-offload network interface devices

A method and apparatus are provided for communication of a host having a first network interface device and a second network interface device coupled thereto. The first network interface device is configured to operate a transport layer network connection between the host and a peer. The host is configured to, while the first network device is operating the transport layer network connection with the peer, independently determine connection information that describes the transport layer network connection being operated by the first network interface device. The second network interface device is caused to operate the transport layer network connection with the peer based at least in part on the connection information maintained by the host.