PFE resiliency: Programmable flexible VXLAN tunnels

Flexible VXLAN tunnels are supported in a data center environment that includes one or more controllers. In this environment, one or more of the Juniper Networks devices that support this feature can function as data center edge gateways that exchange Layer 2 traffic with hosts in a data center. Through the use of static routes and tunnel encapsulation and de-encapsulation profiles, the Layer 2 traffic is dynamically tunneled over an intervening IPv4 or IPv6 network. The controllers in the data center environment enable you to program a large volume of static routes and tunnel profiles on the gateway devices through the Juniper Extension Toolkit (JET) APIs.