Network routing arrangement

Details Network routing arrangement Network routing arrangement

H - Electricity

04

M

344/24

H04M 7/00 (2006.01) H04Q 3/66 (2006.01)

Patent

CA 1252867

- 28 - NETWORK ROUTING ARRANGEMENT Abstract Circular paths in a multinode connection are avoided by passing an adaptive routing state, from node to node, which specifies the path options that the current node may use in its selection of a next step in the connection. The routing state, which is characterized by, for example, a single digit, is updated by the current node and is a function of the recent path history of the connection. The single-digit routing state controls the advancement of the connection by specifying whether the next selected step can be either a forward step, a null step or a backward step, or any combination thereof. A forward step advances the connection toward its destination, a null step does not advance the connection and a backward step causes the connection to step backward to a node not yet in the connected path. When a node selects a next step, it adapts the routing state digit to reflect its selection and passes the new routing state digit to the next node.

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