| 摘要 |
A process is disclosed for adaptively routing service requests through a network comprising nodes interconnected with links. The network is also arranged so that each node may communicate with each of the other nodes. At preselected time intervals, sets of routes through the network are generated in response to the network configuration and traffic information. Over predetermined periods, traffic data is measured to determine carried load and blocking for each link. Also, at predetermined time intervals, occupancy factors are computed as determined by the network configuration and in response to traffic information including measured traffic data. Each of the occupany factors is derived from a nominal routing scheme in which a call blocked on a single route is treated as a lost call as in separable routing. Upon a request for service, the occupany factors corresponding to the busy-idle status of the links are used to compute an occupany value associated with each of the routes. Each route is converted to a candidate route based on traffic load at the initiation of the service request. The minimum occupany value for each set of routes is selected as the candidate route for bridging a given node pair. If this minimum value is less than a preselected threshold, the traffic is routed over this candidate route, thereby satisfying the service request. Otherwise, the request is denied.
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