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Dynamic recovery from a split-brain failure in edge nodes

  • US 10,237,123 B2
  • Filed: 12/21/2016
  • Issued: 03/19/2019
  • Est. Priority Date: 12/21/2016
  • Status: Active Grant
First Claim
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1. A method for specifying an operational state of first and second logical gateways, the method comprising:

  • receiving a message from the first gateway that indicates the first gateway has transitioned from a standby state to an active state, the first and second gateways (i) serving as a pair of high availability (HA) logical gateways of a logical network implemented on a physical network and (ii) connecting the logical network to a network external to the logical network;

    determining that the second gateway is in the active state when the first gateway is in the active state;

    determining that the first and second gateways do not communicate with each other; and

    based on the determination that the first and second gateways do not communicate with each other, directing the first gateway to transition back to the standby state.

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