Apparatus and method for high performance checkpointing and rollback of network operations
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United States of America Patent
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Issued Date -
Jul 26, 2007
app pub date -
Jan 23, 2006
filing date -
Jan 23, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An improved method and apparatus is provided for checkpointing and rollback of network operations. In one embodiment the method includes varying the checkpoint interval in response to a packet deferred timer and buffering data packets that would affect the states of other network devices in a deferred packets queue. The method further generates an outbound packet for transmission to a remote system, buffers the outbound packet until one of a checkpoint or rollback condition is met and varies a checkpoint interval in response to network load. In another embodiment the apparatus includes a transmitter to send an outgoing packet to a remote system, a deferred transmit queue connected to the transmitter and a deferred packet timer that is configured to vary a checkpoint interval based on a predetermined value.
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