Virtual tunnel endpoints for congestion-aware load balancing
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United States of America Patent
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Jun 11, 2019
Grant Date -
Oct 12, 2017
app pub date -
Apr 11, 2017
filing date -
Apr 12, 2016
priority date (Note) -
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Abstract
Example methods are provided for a source virtual tunnel endpoint (VTEP) to perform congestion-aware load balancing in a data center network. The method may comprise the source VTEP learning congestion state information associated with multiple paths provided by respective multiple intermediate switches connecting the source VTEP with a destination VTEP. The method may also comprise the source VTEP receiving second packets that are sent by a source endpoint and destined for a destination endpoint; and selecting a particular path from multiple paths based on the congestion state information. The method may further comprise the source VTEP generating encapsulated second packets by encapsulating each of the second packets with header information that includes a set of tuples associated with the particular path; and sending the encapsulated second packets to the destination endpoint.
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