Distributed HSRP gateway in VxLAN flood and learn environment with faster convergence
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United States of America Patent
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Oct 23, 2018
Grant Date -
Feb 1, 2018
app pub date -
Jul 27, 2016
filing date -
Jul 27, 2016
priority date (Note) -
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Abstract
A method of supporting N active, distributed HSRP gateways in a virtual Extensible local area network. The method includes: joining by HSRP active, HSRP standby, HSRP listen gateways a special virtual Extensible LAN tunnel endpoint address; advertising by HSRP active, HSRP standby, HSRP listen gateways its address; assigning priority to HSRP active, HSRP standby, HSRP listen gateways; determining the liveliness of the HSRP active gateway; and the HSRP active gateway sourcing Hello with HSRP VMAC in the inner layer 2 header, and the special virtual Extensible LAN tunnel endpoint address in the outer Layer 3 address; replying by the HSRP active gateway to a broadcast ARP to an HSRP Virtual IP address; forwarding packets destined to Virtual MAC by any of HSRP active, HSRP standby, HSRP listen gateways and replying by HSRP active, HSRP standby, HSRP listen gateways to a unicast ARP to an HSRP Virtual IP address.
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