Abstract: An example network orchestrator includes processing circuitry and a memory including instructions that, when executed by the processing circuitry, cause the network orchestrator to determine that a branch site of a WAN includes multiple branch gateways. The network orchestrator further determines that devices of a core site of the WAN and devices of the branch site are members of an extended VLAN. The network orchestrator further transmits a first command to a first branch gateway and a first headend gateway to establish a WAN uplink tunnel to forward data traffic of the extended VLAN. The network orchestrator further transmits a second command to a set of branch gateways of the branch gateway cluster to establish intracluster tunnels with the first branch gateway.

Abstract: An example includes a manager gateway of a gateway cluster, comprising processing circuitry and a memory including instructions that cause the gateway to generate a virtual IP address for each gateway of the gateway cluster. The instructions further cause the gateway to receive an indication that a client device has joined a LAN. The instructions further cause the gateway to determine an anchor gateway to which the client device is to be anchored. The instructions further cause the gateway to transmit a first message anchoring the client device to the anchor gateway. The instructions further cause the gateway to transmit a second message offering an address to the client device.

Abstract: An example includes a manager gateway of a gateway cluster, comprising processing circuitry and a memory including instructions that cause the gateway to generate a virtual IP address for each gateway of the gateway cluster. The instructions further cause the gateway to receive an indication that a client device has joined a LAN. The instructions further cause the gateway to determine an anchor gateway to which the client device is to be anchored. The instructions further cause the gateway to transmit a first message anchoring the client device to the anchor gateway. The instructions further cause the gateway to transmit a second message offering an address to the client device.

Abstract: An example network orchestrator includes processing circuitry and a memory including instructions that, when executed by the processing circuitry, cause the network orchestrator to determine that a branch site of a WAN includes multiple branch gateways. The network orchestrator further determines that devices of a core site of the WAN and devices of the branch site are members of an extended VLAN. The network orchestrator further transmits a first command to a first branch gateway and a first headend gateway to establish a WAN uplink tunnel to forward data traffic of the extended VLAN. The network orchestrator further transmits a second command to a set of branch gateways of the branch gateway cluster to establish intracluster tunnels with the first branch gateway.