Method for reserving bandwidth in an ethernet type network
AssigneeThomson Licensing
InventorsJean-Francois Fleury, Jean-Baptiste Henry
Life of this patent
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Abstract
The inventive method for reserving at least one node of a communication network like the Ethernet bus in the form of a predetermined fraction of the Ethernet bus bandwidth consists in circulating a token between the network nodes in such a way that they are enabled to successively transfer an Ethernet packet to a bus according to a given sequence which defines a chronological order for the token passage between nodes and in which a predetermined fraction of the bandwidth reserved for a network node corresponds in sequence to a certain number of passage occurrences of the token through the considered node. Said invention can be used for domestic communication networks like the Ethernet bus.
Claims7
1-5. (canceled)
Method for reserving, on at least one node of an Ethernet bus type communication network, a predetermined fraction of the bandwidth of the digital bus during a cycle;
- comprising:
- having a token circulate between all the nodes of the network so as to enable all the nodes of the network to send in turn a data packet over the bus according to a predefined sequence defining a chronological order of passage of the token between all the nodes during a cycle;
- and
- in which the predetermined fraction of the bandwidth reserved for a node of the network corresponds in the sequence to a certain number of occurrences of passage of the token via the node concerned.
Communication device designed to be connected to a digital bus communication network, wherein it is configured to have a token circulate between all the nodes of the network during a cycle and in that it is organized to construct a first table storing, for each node of the network, information indicative of a fraction of the bus bandwidth reserved for the node of the network and a second table storing a sequence defining a chronological order of passage of the token between all the nodes during a cycle, the fraction of the bandwidth reserved for a node of the network corresponding in the sequence to a certain number.
Dependencies are inferred from the claim text.