Patents by Inventor Loudon T Blair

Loudon T Blair 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).

  • Patent number: 10425322
    Abstract: A data center utilizing an architecture minimizing Internet Protocol (IP) routing therein includes one or more service edge network elements located in the data center, wherein a sub-IP network communicatively couples the one or more service edge network elements to one or more customer edge network elements located at or near demarcation points between a customer edge network and a service provider network, wherein the one or more customer edge network elements and the one or more service edge network elements are configured to provide direct user access to the data center for a plurality of users; and a control system communicatively coupled to the one or more service edge network elements and the sub-IP network, wherein the control system is configured to control resources on the sub-IP network and the data center for the plurality of users.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: September 24, 2019
    Assignee: Ciena Corporation
    Inventors: Loudon T. Blair, Joseph Berthold, Michael Y. Frankel, John P. Mateosky
  • Patent number: 10404365
    Abstract: Systems and methods for path computation in an optical network include obtaining optical layer characteristics related to one or more optical paths in the optical network based in part on performance measurements in the optical network; responsive to service establishment or service restoration, determining a path from source to destination based on utilizing the optical layer characteristics to confirm physical validity of the path; and provisioning a service on the determined path from the source to the destination in the optical network.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 3, 2019
    Assignee: Ciena Corporation
    Inventors: Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong, David Weldon Boertjes, Jamie Gaudette
  • Patent number: 10212037
    Abstract: A data center network includes a plurality of packet-optical switches each at a location in the data center network and each including a switch fabric comprising both a Layer 1 fabric and a packet fabric communicatively coupled to one or more line ports; wherein the plurality of packet-optical switches are communicatively coupled to one another in a topology to form data connectivity in the data center network, and wherein each of the plurality of packet-optical switches is configured to provide the data connectivity through the Layer 1 switch bypassing the packet fabric when the location does not require Layer 2 forwarding in the topology, and provide the data connectivity through the Layer 1 switch and using the packet fabric to provide the data service with multi-point connectivity when the location requires Layer 2 forwarding in the topology.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: February 19, 2019
    Assignee: Ciena Corporation
    Inventor: Loudon T. Blair
  • Publication number: 20180191432
    Abstract: Systems and methods for path computation in an optical network include obtaining optical layer characteristics related to one or more optical paths in the optical network based in part on performance measurements in the optical network; responsive to service establishment or service restoration, determining a path from source to destination based on utilizing the optical layer characteristics to confirm physical validity of the path; and provisioning a service on the determined path from the source to the destination in the optical network.
    Type: Application
    Filed: February 28, 2018
    Publication date: July 5, 2018
    Inventors: Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong, David Weldon Boertjes, Jamie Gaudette
  • Patent number: 9948387
    Abstract: The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 17, 2018
    Assignee: Ciena Corporation
    Inventors: Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong, David Weldon Boertjes, Jamie Gaudette
  • Publication number: 20180041392
    Abstract: A data center network includes a plurality of packet-optical switches each at a location in the data center network and each including a switch fabric comprising both a Layer 1 fabric and a packet fabric communicatively coupled to one or more line ports; wherein the plurality of packet-optical switches are communicatively coupled to one another in a topology to form data connectivity in the data center network, and wherein each of the plurality of packet-optical switches is configured to provide the data connectivity through the Layer 1 switch bypassing the packet fabric when the location does not require Layer 2 forwarding in the topology, and provide the data connectivity through the Layer 1 switch and using the packet fabric to provide the data service with multi-point connectivity when the location requires Layer 2 forwarding in the topology.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventor: Loudon T. BLAIR
  • Patent number: 9819546
    Abstract: Systems and methods for providing a data service through a packet-optical switch in a network include, subsequent to defining a loop-free forwarding topology for the data service in the network, if the packet-optical switch is a degree 2 site for the data service, providing the data service through the packet-optical switch at a Layer 1 protocol bypassing a partitioned packet fabric of the packet-optical switch; and if the packet-optical switch is a degree 3 or more site for the data service with multi-point connectivity, providing the data service through the packet-optical switch at the Layer 1 protocol and at a packet level using the partitioned packet fabric to provide the data service between the multi-point connectivity and to associated OTN connections for each degree of the degree 3 or more site.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: November 14, 2017
    Assignee: Ciena Corporation
    Inventor: Loudon T. Blair
  • Publication number: 20170033865
    Abstract: The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
    Type: Application
    Filed: October 10, 2016
    Publication date: February 2, 2017
    Inventors: Michael Y. FRANKEL, Loudon T. BLAIR, Christian BOURGET, Lyndon Y. ONG, David Weldon BOERTJES, Jamie GAUDETTE
  • Publication number: 20160380886
    Abstract: A network element is configured to provide a distributed data center architecture between at least two data center locations. The network element includes a plurality of ports configured to switch packets between one another; wherein a first port of the plurality of ports is connected to an intra-data center network of a first data center location and a second port of the plurality of ports is connected to a second data center location that is remote from the first data center location over a Wide Area Network (WAN), and wherein the intra-data center network of the first data center location, the WAN, and an intra-data center network of the second data center location utilize an ordered label structure between one another to form the distributed data center architecture.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Loudon T. BLAIR, Joseph BERTHOLD, Nigel L. BRAGG, Raghuraman RANGANATHAN
  • Patent number: 9490894
    Abstract: The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: November 8, 2016
    Assignee: Ciena Corporation
    Inventors: Jamie Gaudette, David Weldon Boertjes, Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong
  • Publication number: 20160301593
    Abstract: A data center utilizing an architecture minimizing Internet Protocol (IP) routing therein includes one or more service edge network elements located in the data center, wherein a sub-IP network communicatively couples the one or more service edge network elements to one or more customer edge network elements located at or near demarcation points between a customer edge network and a service provider network, wherein the one or more customer edge network elements and the one or more service edge network elements are configured to provide direct user access to the data center for a plurality of users; and a control system communicatively coupled to the one or more service edge network elements and the sub-IP network, wherein the control system is configured to control resources on the sub-IP network and the data center for the plurality of users.
    Type: Application
    Filed: April 13, 2015
    Publication date: October 13, 2016
    Inventors: Loudon T. BLAIR, Joseph BERTHOLD, Michael Y. FRANKEL, John P. MATEOSKY
  • Patent number: 9270405
    Abstract: A directionless optical architecture is described for reconfigurable optical add/drop multiplexers (ROADMs) and wavelength selective switches (WSSs). The directionless architecture utilizes a directionless wavelength switch coupled between client devices and ROADMs/WSSs to eliminate the need to hard-wire client devices to a wavelength division multiplexed (WDM) network. Accordingly, client device connections can be automatically routed without manual intervention to provide a highly resilient network design which can recover route diversity during failure scenarios. Additionally, the present invention minimizes deployments of costly optical transceivers while providing superior resiliency. Further, the present invention couples the directionless optical architecture and associated optical protection mechanisms with existing mesh restoration schemes to provide additional resiliency.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: February 23, 2016
    Assignee: Ciena Corporation
    Inventors: Loudon T. Blair, Michael Y. Frankel
  • Publication number: 20160028586
    Abstract: Systems and methods for providing a data service through a packet-optical switch in a network include, subsequent to defining a loop-free forwarding topology for the data service in the network, if the packet-optical switch is a degree 2 site for the data service, providing the data service through the packet-optical switch at a Layer 1 protocol bypassing a partitioned packet fabric of the packet-optical switch; and if the packet-optical switch is a degree 3 or more site for the data service with multi-point connectivity, providing the data service through the packet-optical switch at the Layer 1 protocol and at a packet level using the partitioned packet fabric to provide the data service between the multi-point connectivity and to associated OTN connections for each degree of the degree 3 or more site.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 28, 2016
    Inventor: Loudon T. BLAIR
  • Patent number: 9148223
    Abstract: The present disclosure provides hybrid packet-optical private network systems and methods for a private and dedicated multi-point Ethernet Private Local Area Network (EPLAN). The network systems and methods include a Layer 1 infrastructure service with the inclusion of reserved, dedicated packet switch capacity upon which clients can build their personal, private packet networks. In the systems and methods described herein, packet networking methods are not used to partition the isolated LAN connectivity. Instead, dedicated Ethernet Private LANs (EPLs) are defined between dedicated virtual switching instances (VSIs) that are defined, as necessary, within larger packet-optical switches. Each VSI is partitioned from the remainder of its packet switch fabric as a dedicated, private resource for a specific EPLAN. A packet network is then built by the customer on top of the private EPLAN bandwidth and operated as an isolated, private network with no influence by other carrier's network resources.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: September 29, 2015
    Assignee: Ciena Corporation
    Inventor: Loudon T. Blair
  • Publication number: 20140348504
    Abstract: A directionless optical architecture is described for reconfigurable optical add/drop multiplexers (ROADMs) and wavelength selective switches (WSSs). The directionless architecture utilizes a directionless wavelength switch coupled between client devices and ROADMs/WSSs to eliminate the need to hard-wire client devices to a wavelength division multiplexed (WDM) network. Accordingly, client device connections can be automatically routed without manual intervention to provide a highly resilient network design which can recover route diversity during failure scenarios. Additionally, the present invention minimizes deployments of costly optical transceivers while providing superior resiliency. Further, the present invention couples the directionless optical architecture and associated optical protection mechanisms with existing mesh restoration schemes to provide additional resiliency.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Applicant: Ciena Corporation
    Inventors: Loudon T. BLAIR, Michael Y. FRANKEL
  • Patent number: 8818198
    Abstract: Photonic link information collection and advertisement systems and methods enable photonic nodes (e.g., optical amplifiers) to operate within a control plane system in a distributed and real-time manner. For example, the photonic nodes may not require full control plane protocol stacks at each photonic node. In particular, the systems and methods provide a distributed discovery method for photonic links without requiring full participation in the control plane at the photonic nodes. Additionally, the systems and methods include network databases with amplifier configuration information in a control plane enabled network.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: August 26, 2014
    Assignee: Ciena Corporation
    Inventors: Marian Trnkus, Loudon T. Blair, Lyndon Y. Ong, Anurag Prakash, Mohit Chhillar
  • Publication number: 20130259465
    Abstract: The present disclosure provides hybrid packet-optical private network systems and methods for a private and dedicated multi-point Ethernet Private Local Area Network (EPLAN). The network systems and methods include a Layer 1 infrastructure service with the inclusion of reserved, dedicated packet switch capacity upon which clients can build their personal, private packet networks. In the systems and methods described herein, packet networking methods are not used to partition the isolated LAN connectivity. Instead, dedicated Ethernet Private LANs (EPLs) are defined between dedicated virtual switching instances (VSIs) that are defined, as necessary, within larger packet-optical switches. Each VSI is partitioned from the remainder of its packet switch fabric as a dedicated, private resource for a specific EPLAN. A packet network is then built by the customer on top of the private EPLAN bandwidth and operated as an isolated, private network with no influence by other carrier's network resources.
    Type: Application
    Filed: May 20, 2013
    Publication date: October 3, 2013
    Applicant: CIENA CORPORATION
    Inventor: Loudon T. Blair
  • Publication number: 20130236169
    Abstract: The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
    Type: Application
    Filed: April 29, 2013
    Publication date: September 12, 2013
    Applicant: Ciena Corporation
    Inventors: Jamie Gaudette, David Weldon Boertjes, Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong
  • Publication number: 20130177311
    Abstract: Photonic link information collection and advertisement systems and methods enable photonic nodes (e.g., optical amplifiers) to operate within a control plane system in a distributed and real-time manner. For example, the photonic nodes may not require full control plane protocol stacks at each photonic node. In particular, the systems and methods provide a distributed discovery method for photonic links without requiring full participation in the control plane at the photonic nodes. Additionally, the systems and methods include network databases with amplifier configuration information in a control plane enabled network.
    Type: Application
    Filed: February 17, 2012
    Publication date: July 11, 2013
    Applicant: Ciena Corporation
    Inventors: Marian Trnkus, Loudon T. Blair, Lyndon Y. Ong, Anurag Prakash, Mohit Chhillar
  • Patent number: 8433192
    Abstract: The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: April 30, 2013
    Assignee: Ciena Corporation
    Inventors: Michael Y. Frankel, Loudon T. Blair, Christian Bourget, Lyndon Y. Ong