Back to results
US 2006/0235996 A1Published application
Method for operating a packet based data network
AssigneeAlcatel
InventorsJurgen Wolde, Emmanuel Dotaro, Laurent Ciavaglia
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAlcatel
InventorsJurgen Wolde, Emmanuel Dotaro, Laurent Ciavaglia
Estimating the term…
A method for operating a packet based data network (21; 31), the data network (21; 31) comprising a multitude of nodes (A, B, C, D) and a shared data bus (22; 32), wherein at least some of the nodes (A, B, C, D) add traffic to the data bus (22; 32), and wherein the upstream nodes (A, B, C, D) reserve data transfer capacity of the data bus (22; 32) for downstream nodes (A, B, C, D) by means of a fairness mechanism, is characterized in that at least some of the nodes (A, B, C, D) drop traffic from the data bus (22; 32), and that said fairness mechanism takes into account the drop traffic at downstream nodes (A, B, C, D). The inventive method allows a better bandwidth utilization and uses available resources more efficiently.
A method for operating a packet based data network, the data network comprising a multitude of nodes and a shared data bus, wherein at least some of the nodes add traffic to the data bus, and wherein with respect to a data flow in one direction of the data bus, the upstream nodes reserve data transfer capacity of the data bus for downstream nodes by means of a fairness mechanism, wherein at least some of the nodes drop traffic from the data bus, that said fairness mechanism takes into account the drop traffic at downstream nodes, and that the fairness mechanism applies anti-tokens at the nodes which add traffic to the bus, wherein the anti-tokens forbid a node to emit data traffic for a given amount of time, thus preserving voids for nodes located downstream.
A node for adding traffic to a shared data bus of a packet based data network, wherein means for splitting add traffic into logical paths according to the destination of the add traffic, and means for applying a fairness mechanism to each logical path to determine a data transfer capacity available for the respective path, wherein the fairness mechanism applies anti-tokens at the node, and wherein the anti-tokens forbid the node to emit data traffic for a given amount of time.
Dependencies are inferred from the claim text.