Abstract: The present disclosure envisages optimization of a time-sensitive fog network deployed in an industrial environment. The time-sensitive fog network comprises a plurality of fog nodes communicably coupled to a plurality of industrial equipments referenced as endpoints. Each fog node is embodied with a plurality of computer-based resources including computational resources, storage resources, security resources, network resources, application-specific resources, and device-specific resources. The resource constraints that warrant the endpoints to cooperate with specific fog nodes to access specific resources are manifested as a compute profile, a storage profile, a security profile, a network profile, an application-specific profile, and a device-specific profile.

Abstract: The invention describes a method and a computer network for fault tolerant message transmission. Nodes of the network are connected to form a ring network. Nodes in the network form a summation group. For transmitting messages from the nodes of the summation group to a switch edge, nodes of the summation group generate and send summation frames. If a node participating in the summation group determines the non-arrival of a summation frame, it generates first recovery frame, inserts its message into said recovery frame, and sends this first recovery frame in the direction of the summation frame, which it was expecting. After sending the first recovery frame, it generates a second recovery frame, inserts its messages into said second right direction recovery frame, and sends said second right direction recovery frame to the switch.