Adaptive session forwarding following virtual machine migration detection
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United States of America Patent
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Jun 25, 2019
Grant Date -
Oct 17, 2013
app pub date -
Apr 10, 2013
filing date -
Apr 11, 2012
priority date (Note) -
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Abstract
A network system includes a first network access device having an input/output (IO) module of a firewall to capture a packet of a network session originated from a first node associated with the first network access device, a first security device having a firewall processing module to determine based on the captured packet whether the first node is a destination node that is receiving VM migration from a second node that is associated with a second network access device. The first security device is to update a first flow table within the first network access device. The network system further includes a second security device to receive a message from the first security device concerning the VM migration to update a second flow table of the second network access device, such that further network traffic of the network session is routed to the first node without interrupting the network session.
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