Patent ID: 7860111
Filing Date: 2010-12-28
Classification: H04L

Abstract:
1. A method for reserving, on a node of an Ethernet bus type communication network having parallel connections to nodes, a fraction of bandwidth of a digital bus during a cycle, the method comprising: circulating a token between all nodes of the network so as to enable all nodes of the network to send in turn a data packet over the bus according to a sequence defining a chronological order of passage of the token between all nodes during a cycle, wherein the chronological order of passage of the token between all nodes of the network is defined by a master node of the network; wherein the fraction of bandwidth reserved for the node of the network corresponds in the sequence to a certain number of occurrences of passage of the token via the node, and wherein the master node, on initialization of the network, constructs a first table, stores in said first table for each node of the network information indicative of the fraction of bandwidth reserved for each node, and on the basis of the first table, constructs and transmits to each node a second table storing the sequence defining the order of passage of the token between the nodes of the network that reserved a fraction of bandwidth, and wherein each node that reserved a fraction of bandwidth transmits the token via the Ethernet network to a next node that reserved a fraction of bandwidth in the sequence, the transmission of the token is received by all nodes in parallel such that each node of the network follows circulation of the token.