At&t Intellectual Property I, LP

Miguel Tomas Molina

Christine E Bouamalay

Ali Zolfaghari

Raghvendra Savoor

Andre Fuetsch

Stephen S Sowell

Ronald D Crawford

A method for relieving network node congestion includes determining an average of an aggregated load on a network node that routes network traffic, projecting a demand on the network node based on extrapolating the average of the aggregated load to a future period, determining a current level of congestion on the network node, and projecting a future level of congestion on the network node based on the projected demand and the current level of congestion. An available capacity of other network nodes in a portion of the communication network that includes the network node is determined, as well as whether the projected future level of congestion on the network node can be relieved using the determined available capacity of the other network nodes.

Network assessment and short-term planning procedure

A method includes forming a set of direct connections (including a high-speed connection and a low-speed connection) between an origination central office (OCO) and a destination central office (DCO). The method includes forming a spoke connection between the OCO and a hub node and forming a connection between the hub node and the DCO. The spoke connection is formed to carry first residual demand traffic from the OCO to the hub node. The connection is formed to carry the first residual demand traffic and second residual demand traffic (received at the hub node from other OCOs) from the hub node to the DCO. The method includes determining a first estimated cost (of forming the set of direct connections) and a second estimated cost (of forming the spoke connection and the connection). The method includes determining whether the first estimated cost exceeds the second estimated cost.

System and method for second order multi-layer traffic grooming for optical network optimization

A method for relieving network node congestion includes determining a moving average of an aggregated load on a network node that routes network traffic using historical data for a period of time for a portion of a communication network that includes the network node. Demand on the network node is projected based on the moving average. A current level of congestion on the network node is determined. A level of congestion on the network node is projected based on the projected demand and the current level of congestion. Available capacity of other network nodes in the portion of the communication network is estimated. A determination is made whether the projected level of congestion can be relieved using the estimated available capacity of the other network nodes. The communication network is reconfigured to relieve the projected level of congestion when the projected level of congestion can be relieved.

A method of planning a network is disclosed. The method includes estimating a first cost of forming a direct connection between an origination central office and a destination central office. The method also includes estimating a second cost of forming a spoke connection between the origination central office and a hub node. The spoke connection is to carry residual data traffic. The method also includes determining whether to implement the direct connection based on whether the estimated first cost exceeds the estimated second cost.

A method for predicting node blockage in a telecommunications network includes determining an aggregated load on a network node and determining a current level of blockage on the node. A demand on the node is projected based on the determined aggregated load. A level of blockage of the node is then projected based on the projected demand and the determined current level of blockage.

A method of automatically generating a computer based layout of an optical communication network is provided. First, communications traffic demand forecast data for an optical communication network is received. Network data corresponding to a deployed optical communication network is also received. Thereafter, a network plan can be automatically generated. The network plan corresponds to a modified network that may be deployed. Also, the network plan can be derived from the network data. Further, the network plan can be constructed in response to the performance of a grooming operation that includes a first level of grooming at an optical level of the modified network and a second level of grooming at an electrical level of the modified network.

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San Ramon, CA, United States of America

Miguel Tomas Molina