Patents by Inventor Jonathan B. Sadler
Jonathan B. Sadler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9323618Abstract: In a telecommunications/data network, it is common to have multiple recovery domains each employing its own technique for recovering a fault that may be different from a technique employed by another domain. Permitting multiple recovery domains to recover a fault without coordination among the domains can result in adverse interactions, such as rapid and repeated changes in the actions taken or “flapping,” and repeated hits to traffic. A method and corresponding apparatus for coordinating fault recovery in a network, according to an embodiment of the present invention, notifies a first recovery domain that a second recovery domain is or is not taking action to recover a fault in the network. Coordinating the recovery efforts of the first and second recovery domains reduces fault recovery time and allows concurrent actions to be taken.Type: GrantFiled: July 18, 2014Date of Patent: April 26, 2016Assignee: Coriant Operations, Inc.Inventors: Thomas J. Huber, Jonathan B. Sadler, Mark L. Jones
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Patent number: 9160686Abstract: Example embodiments of the present invention relate to increasing an aggregate capacity of a network without using a centralized switch fabric. A method and corresponding apparatus in an example embodiment of the present invention relates to increasing overall aggregate capacity of a switching system. The example embodiment includes a first switching shelf having a first predetermined aggregate capacity, and multiple second switching shelves having a second predetermined aggregate capacity. The second predetermined aggregate capacity is less than the first predetermined aggregate capacity. The example embodiment increases the overall aggregate capacity as a function of connections between the first switching shelf and the multiple second switching shelves. The shelves are interconnected with interconnection links and can be configured to connect to additional shelves as the switching system grows to larger sizes. Embodiments can increase capacity while reducing cost within a network node.Type: GrantFiled: October 18, 2010Date of Patent: October 13, 2015Assignee: Tellabs Operations, Inc.Inventors: Mark E. Boduch, Jonathan B. Sadler
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Patent number: 9130875Abstract: Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: GrantFiled: January 23, 2012Date of Patent: September 8, 2015Assignee: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler, Susan W. Teller
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Patent number: 9065759Abstract: The embodiments disclosed herein provide a mechanism for sharing protection resources in an arbitrary network topology involving pre-computing the protection resources so that data-plane-based protection can be used to activate the protection resources upon detection of a failure, thus, providing faster switching times than typical control-plane-based solutions. This is accomplished by configuring a mesh network to include, for a working path in the network, one or more protection paths with the same end nodes as the working path, where each protection path includes at least one intermediate node that is not part of the working path. The intermediate node accepts a protection request from one of the end nodes and determines whether a local resource for a protection path is available.Type: GrantFiled: September 12, 2011Date of Patent: June 23, 2015Assignee: Tellabs Operations, Inc.Inventors: Weiying Cheng, Jonathan B. Sadler, Thomas J. Huber, Anoop John Mathew
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Publication number: 20140337668Abstract: In a telecommunications/data network, it is common to have multiple recovery domains each employing its own technique for recovering a fault that may be different from a technique employed by another domain. Permitting multiple recovery domains to recover a fault without coordination among the domains can result in adverse interactions, such as rapid and repeated changes in the actions taken or “flapping,” and repeated hits to traffic. A method and corresponding apparatus for coordinating fault recovery in a network, according to an embodiment of the present invention, notifies a first recovery domain that a second recovery domain is or is not taking action to recover a fault in the network. Coordinating the recovery efforts of the first and second recovery domains reduces fault recovery time and allows concurrent actions to be taken.Type: ApplicationFiled: July 18, 2014Publication date: November 13, 2014Inventors: Thomas J. Huber, Jonathan B. Sadler, Mark L. Jones
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Patent number: 8804485Abstract: In a telecommunications/data network, it is common to have multiple recovery domains each employing its own technique for recovering a fault that may be different from a technique employed by another domain. Permitting multiple recovery domains to recover a fault without coordination among the domains can result in adverse interactions, such as rapid and repeated changes in the actions taken or “flapping,” and repeated hits to traffic. A method and corresponding apparatus for coordinating fault recovery in a network, according to an embodiment of the present invention, notifies a first recovery domain that a second recovery domain is or is not taking action to recover a fault in the network. Coordinating the recovery efforts of the first and second recovery domains reduces fault recovery time and allows concurrent actions to be taken.Type: GrantFiled: November 3, 2011Date of Patent: August 12, 2014Assignee: Tellabs Operations, Inc.Inventors: Thomas J. Huber, Jonathan B. Sadler, Mark L. Jones
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Patent number: 8693340Abstract: A cost of a path may not be the only factor in searching for a path solution in a network. For example, some applications are delay sensitive and require finding a path that does not exceed a latency constraint for the entire path. Accordingly, a method and corresponding apparatus for searching for a path solution in a network is provided that identifies combinations of partial paths that satisfy an end-to-end path constraint, compares attributes of the combinations of partial paths, prunes the combinations of partial paths based on results of the comparing to identify candidate combinations of partial paths, and selects a candidate combination of partial paths as the path solution. By pruning combinations of partial paths, considerable is saved compared to exhaustive comparing of every possible combination of partial paths and scalability is achieved.Type: GrantFiled: March 19, 2010Date of Patent: April 8, 2014Assignee: Tellabs Operations, Inc.Inventors: Steven D. Schwager, Jonathan B. Sadler
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Patent number: 8532481Abstract: Optical networks occasionally experience a fault along a communications path. Service providers prefer to have an alternative communications path available to enable users to still communicate in a seamless manner. Accordingly, a method and corresponding apparatus for providing path protection for dedicated paths in an optical network is provided.Type: GrantFiled: January 27, 2010Date of Patent: September 10, 2013Assignee: Tellabs Operations, Inc.Inventors: Thomas T. Karjck, Dion Kwun Kit Loung, Jonathan B. Sadler, Digvijay Sharma, Ramesh Kuppusamy, David W. Jenkins
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Patent number: 8488471Abstract: An intelligent network planning and provisioning tool is provided. The intelligent network planning and provisioning tool includes a forecaster coupled to a network control plane. The forecaster receives an estimate of initial network resources from a user and generates a set of link costs and constraints for use by the network control plane in making routing decisions for a network. The network control plane transmits provisioning experience information, representing network traffic demands received by, and provisioning decisions made by, the network control plane, back to the forecaster. When the forecaster receives the provisioning experience from the network control plane, the forecaster generates a new set of link costs that are transmitted to the network control plane for use in making further provisioning decisions. The forecaster may optionally generate link costs, termed “smart costs”, that may be used to route traffic through the network using preferred links.Type: GrantFiled: November 1, 2006Date of Patent: July 16, 2013Assignee: Tellabs Operations, Inc.Inventors: Jonathan B. Sadler, Dale A. Scholtens
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Publication number: 20130064073Abstract: The embodiments disclosed herein provide a mechanism for sharing protection resources in an arbitrary network topology involving pre-computing the protection resources so that data-plane-based protection can be used to activate the protection resources upon detection of a failure, thus, providing faster switching times than typical control-plane-based solutions. This is accomplished by configuring a mesh network to include, for a working path in the network, one or more protection paths with the same end nodes as the working path, where each protection path includes at least one intermediate node that is not part of the working path. The intermediate node accepts a protection request from one of the end nodes and determines whether a local resource for a protection path is available.Type: ApplicationFiled: September 12, 2011Publication date: March 14, 2013Applicant: Tellabs Operations, Inc.Inventors: Weiying Cheng, Jonathan B. Sadler, Thomas J. Huber, Anoop John Mathew
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Publication number: 20120281523Abstract: In a telecommunications/data network, it is common to have multiple recovery domains each employing its own technique for recovering a fault that may be different from a technique employed by another domain. Permitting multiple recovery domains to recover a fault without coordination among the domains can result in adverse interactions, such as rapid and repeated changes in the actions taken or “flapping,” and repeated hits to traffic. A method and corresponding apparatus for coordinating fault recovery in a network, according to an embodiment of the present invention, notifies a first recovery domain that a second recovery domain is or is not taking action to recover a fault in the network. Coordinating the recovery efforts of the first and second recovery domains reduces fault recovery time and allows concurrent actions to be taken.Type: ApplicationFiled: November 3, 2011Publication date: November 8, 2012Applicant: Tellabs Operations, Inc.Inventors: Thomas J. Huber, Jonathan B. Sadler, Mark L. Jones
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Publication number: 20120124236Abstract: Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: ApplicationFiled: January 23, 2012Publication date: May 17, 2012Applicant: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler, Susan W. Teller
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Patent number: 8125891Abstract: Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: GrantFiled: May 25, 2010Date of Patent: February 28, 2012Assignee: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler, Susan W. Teller
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Publication number: 20110262135Abstract: Example embodiments of the present invention relate to increasing an aggregate capacity of a network without using a centralized switch fabric. A method and corresponding apparatus in an example embodiment of the present invention relates to increasing overall aggregate capacity of a switching system. The example embodiment includes a first switching shelf having a first predetermined aggregate capacity, and multiple second switching shelves having a second predetermined aggregate capacity. The second predetermined aggregate capacity is less than the first predetermined aggregate capacity. The example embodiment increases the overall aggregate capacity as a function of connections between the first switching shelf and the multiple second switching shelves. The shelves are interconnected with interconnection links and can be configured to connect to additional shelves as the switching system grows to larger sizes. Embodiments can increase capacity while reducing cost within a network node.Type: ApplicationFiled: October 18, 2010Publication date: October 27, 2011Applicant: Tellabs Operations, Inc.Inventors: Mark E. Boduch, Jonathan B. Sadler
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Patent number: 7983182Abstract: A method for managing transport node capability information includes discovering a link end of a local transport node, modelling the local transport node's capability information as a first set of information structures, discovering a neighbor transport node, establishing a control adjacency link between control elements of the local transport node and neighbor transport node, modelling the neighbor transport node's capability information as a second set of information structures, exchanging the first and second sets of information structures between the control elements and identifying potential network layer links between the local and neighbor transport nodes, based on correlations in the first and second sets of information structures.Type: GrantFiled: April 17, 2007Date of Patent: July 19, 2011Assignee: Tellabs Operations, Inc.Inventors: Jonathan B. Sadler, T. Benjamin Mack-Crane
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Publication number: 20110170416Abstract: A cost of a path may not be the only factor in searching for a path solution in a network. For example, some applications are delay sensitive and require finding a path that does not exceed a latency constraint for the entire path. Accordingly, a method and corresponding apparatus for searching for a path solution in a network is provided that identifies combinations of partial paths that satisfy an end-to-end path constraint, compares attributes of the combinations of partial paths, prunes the combinations of partial paths based on results of the comparing to identify candidate combinations of partial paths, and selects a candidate combination of partial paths as the path solution. By pruning combinations of partial paths, considerable is saved compared to exhaustive comparing of every possible combination of partial paths and scalability is achieved.Type: ApplicationFiled: March 19, 2010Publication date: July 14, 2011Applicant: Tellabs Operations, Inc.Inventors: Steven D. Schwager, Jonathan B. Sadler
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Patent number: 7889675Abstract: Each node of a telecommunications network determines interface point connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: GrantFiled: March 13, 2006Date of Patent: February 15, 2011Assignee: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler
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Patent number: 7821946Abstract: Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: GrantFiled: November 26, 2007Date of Patent: October 26, 2010Assignee: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler, Susan W. Teller
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Publication number: 20100232416Abstract: Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection routing layer in the node are calculated. The connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.Type: ApplicationFiled: May 25, 2010Publication date: September 16, 2010Applicant: Tellabs Operations, Inc.Inventors: T. Benjamin Mack-Crane, Jonathan B. Sadler, Susan W. Teller
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Publication number: 20100232784Abstract: Optical networks occasionally experience a fault along a communications path. Service providers prefer to have an alternative communications path available to enable users to still communicate in a seamless manner. Accordingly, a method and corresponding apparatus for providing path protection for dedicated paths in an optical network is provided.Type: ApplicationFiled: January 27, 2010Publication date: September 16, 2010Inventors: Thomas T. Rarick, Dion Kwun Kit Leung, Jonathan B. Sadler, Digvijay Sharma, Ramesh Kuppusamy, David W. Jenkins