Abstract: A method of allowing egress network frames to bypass the buffer requirement of a checkpoint system. In one embodiment, the method includes the steps of examining a frame, or its attributes, to determine if it is a “candidate frame” and if the frame is a candidate frame, allowing it to be released to the external network without an intervening checkpoint. In another embodiment, the candidate frame is one of a group comprising: any frame targeting a designated network interface; any frame of a designated protocol type; any frame sourced or destined from/to a designated address. In still another embodiment, the method includes the designation of scheduling follow-up checkpoints according to frame disposition to limit or reduce the effects of a fail-over (roll-back) disturbance.
Type:
Grant
Filed:
May 23, 2016
Date of Patent:
March 20, 2018
Assignee:
Stratus Technologies, Inc.
Inventors:
Stephen J Wark, Srinivasu Chinta, Paul A Leveille, Leslie R Sibley