Patent ID: 11902086
Assignee: NICIRA, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A system for connecting a local area network (LAN) to a wide area network (WAN), the system comprising:
a first edge device that communicates with the WAN through a first router that uses a first WAN link to connect the LAN to the WAN,
a second edge device that communicates with the WAN through a second router that uses a second WAN link to connect the LAN to the WAN,
a high-availability connection link for connecting the first and second edge devices to communicate to exchange state data regarding their associated WAN links; and
a gateway outside of the LAN that establishes first and second active tunnels through the first and second WAN links respectively with the first and second edge devices, said gateway identifying when both the first and second edge devices designate themselves as an active edge device of the LAN and in response to said identification, directing the first edge device to operate as the active edge device while directing the second edge device to operate as a standby edge device.