Systems and methods for recovering from the failure of a gateway server

摘要

Disclosed is a method for recovering from the failure of a gateway server. In some embodiment, the method includes: receiving, at a backup gateway server, a message transmitted from a client, the message comprising a network resource previously allocated to the client by the gateway server that failed; determining whether the network resource is free; and transmitting, from the backup gateway server to the client, an acknowledgment indicating that the client may continue using the network resource in response to a determination that the network resource is free.

主权项

1. A method performed by a first client executing on a first host from a first addressing realm for communicating with a remote client executing on a remote host from a second addressing realm, comprising:
transmitting to a first gateway server a request for a network resource from the second addressing realm; receiving from the first gateway server a message comprising a network resource from the second addressing realm; using the received network resource to communicate with the remote client; receiving an indication that the first gateway server is not functioning; in response to receiving the indication, transmitting to a second gateway server the network resource received from the first gateway server; after transmitting the network resource to the second gateway server, receiving from the second gateway server a message indicating that the first client should not continue using the network resource; and after receiving the message, restarting the first client or rebooting the first host.