Systems and methods for offloading link aggregation to a host bus adapter (HBA) in single root I/O virtualization (SRIOV) mode
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United States of America Patent
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Jul 17, 2018
Grant Date -
Mar 16, 2017
app pub date -
Sep 14, 2016
filing date -
Sep 14, 2015
priority date (Note) -
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Abstract
A new approach is proposed to offload of link aggregation from a host to a HBA in SRIOV mode. The HBA first creates one or more link aggregation offload engines each having one or more physical ports and to establish a first link between a VM running on the host and one of the link aggregation offload engines for network data transmission with the VM. Once a data packet is received from the VM over the first link, the link aggregation offload engine chooses a first physical port based on its link aggregation method and establish a second link with the chosen first physical port to transmit the packet out of the HBA. If the second link fails, the link aggregation offload engine then chooses a second physical ports and establish a third link with the chosen second physical port to transmit the packet out of the HBA device instead.
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