Patents by Inventor Robert Penfield

Robert Penfield 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: 11329912
    Abstract: A routing system for routing packets for a route or service comprises a plurality of routers including a source router, wherein the source router is configured to receive, using a service and topology exchange protocol, service and topology state information from a STEP repository for at least one other router based on configured relationships between routers; determine a first path to a destination for a route or service based on the service and topology state information, the first path including an ordered list of successive routers to receive a packet associated with the route or service starting with a first successive router and ending with a destination router; and transmit a packet toward the first successive router with first metadata including a list of at least one remaining router of the ordered list of routers to receive the packet associated with the route or service.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 10, 2022
    Assignee: 128 Technology, Inc.
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20220141126
    Abstract: A method routes packets from a source to a destination across an IP network having a plurality of nodes (including the source and destination), and a plurality of network segments interconnecting the plurality of nodes. The source and destination are configured to use a given service. To those ends, the method receives information relating to the given service, and forms a path between the source and the destination. The path includes a) at least one intermediate node between the source and the destination and b) a plurality of specific network segments extending from the source to the destination. The plurality of specific network segments are a sub-set of the plurality of network segments. To form the path, the method assigns the plurality of specific network segments to the network path between the source and the destination as a function of the information relating to the given service.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 5, 2022
    Inventors: Patrick Timmons, Michael Baj, Robert Penfield, Hadriel S. Kaplan, Patrick J. MeLampy
  • Publication number: 20220021606
    Abstract: A routing system for implementing a service and topology exchange protocol (STEP) includes a primary STEP server configured to maintain a STEP repository and a plurality of routers, with each router including a STEP client in communication with the primary STEP server. The STEP client of each router is configured to transmit, using STEP, STEP documents containing service and topology state information for at least one route or service available through the router to the primary STEP server for storage in the STEP repository. The primary STEP server is configured to transmit to the STEP client of each router, using STEP, service and topology state information from the STEP repository for at least one other router based on configured relationships between routers. Each router is configured to make routing decisions based at least in part on the service and topology state information from the at least one other router.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 20, 2022
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick J. MeLampy
  • Publication number: 20210399975
    Abstract: A routing system for distributing multicast routing information for a multicast service includes a plurality of routers including a multicast source router and a plurality of multicast receiver routers, the plurality of routers providing a multicast service, wherein the routers are configured to exchange multicast information associated with the multicast service including identification of multicast sources and the multicast receivers.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 23, 2021
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick J. MeLampy
  • Publication number: 20210344593
    Abstract: In exemplary embodiments of the present invention, a router determines whether or not to establish a stateful routing session based on the suitability of one or more candidate return path interfaces. This determination is typically made at the time a first packet for a new session arrives at the router on a given ingress interface. In some cases, the router may be configured to require that the ingress interface be used for the return path of the session, in which case the router may evaluate whether the ingress interface is suitable for the return path and may drop the session if the ingress interface is deemed by the router to be unsuitable for the return path. In other cases, the router may be configured to not require that the ingress interface be used for the return path, in which case the router may evaluate whether at least one interface is suitable for the return path and drop the session if no interface is deemed by the router to be suitable for the return path.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 4, 2021
    Inventors: Abilash Menon, Robert Penfield, Hadriel S. Kaplan
  • Patent number: 11165863
    Abstract: A method and apparatus form and/or define a network topology in a Layer 3 network with a plurality of nodes, where each node has at least one interface. To that end, the method defines a plurality of neighborhoods, and assigns at least one interface of each node to at least one of the neighborhoods. The method also assigns a communication role to each interface so that each communication role is effective relative to one of the plurality of neighborhoods. The method then enables communication between the interfaces of the plurality of nodes as a function of the neighborhoods and the communication roles.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: November 2, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Patrick Timmons, Michael Baj, Hadriel S. Kaplan, Robert Penfield, Patrick J. MeLampy
  • Patent number: 11153202
    Abstract: A routing system for implementing a service and topology exchange protocol (STEP) includes a primary STEP server configured to maintain a STEP repository and a plurality of routers, with each router including a STEP client in communication with the primary STEP server. The STEP client of each router is configured to transmit, using STEP, STEP documents containing service and topology state information for at least one route or service available through the router to the primary STEP server for storage in the STEP repository. The primary STEP server is configured to transmit to the STEP client of each router, using STEP, service and topology state information from the STEP repository for at least one other router based on configured relationships between routers. Each router is configured to make routing decisions based at least in part on the service and topology state information from the at least one other router.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 19, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20210250273
    Abstract: A router advertises an aggregated service or route that can be evaluated by other routers as a unitary segment rather than as a group of individual links/paths associated with the aggregated service or route. The aggregated service or route can be based on service and topology state information received from one or more other routers and can be advertised with the router as the nexthop for the aggregated service or route. The router can advertise an aggregated metric for the aggregated service or route for use in such evaluation. An aggregated route can be associated with different aggregated metrics for different services.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick J. MeLampy
  • Patent number: 11075836
    Abstract: In exemplary embodiments of the present invention, a router determines whether or not to establish a stateful routing session based on the suitability of one or more candidate return path interfaces. This determination is typically made at the time a first packet for a new session arrives at the router on a given ingress interface. In some cases, the router may be configured to require that the ingress interface be used for the return path of the session, in which case the router may evaluate whether the ingress interface is suitable for the return path and may drop the session if the ingress interface is deemed by the router to be unsuitable for the return path. In other cases, the router may be configured to not require that the ingress interface be used for the return path, in which case the router may evaluate whether at least one interface is suitable for the return path and drop the session if no interface is deemed by the router to be suitable for the return path.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 27, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Abilash Menon, Robert Penfield, Hadriel S. Kaplan
  • Patent number: 11070465
    Abstract: A routing system for distributing multicast routing information for a multicast service includes a plurality of routers including a multicast source router and a plurality of multicast receiver routers, the plurality of routers providing a multicast service, wherein the routers are configured to exchange multicast information associated with the multicast service including identification of multicast sources and the multicast receivers.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 20, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Patent number: 11005749
    Abstract: A routing system for providing multicast access control includes a plurality of routers including a multicast source router and a plurality of multicast receiver routers, the plurality of routers providing a multicast service, wherein the routers are configured to enforce multicast access control policies for the multicast service including a receiver access policy that controls which multicast receivers are allowed to receive packets from the multicast service and a sender access policy that controls which multicast sources are allowed to send packets to the multicast service for distribution to the multicast receivers.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 11, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Patent number: 10999182
    Abstract: A router advertises an aggregated service or route that can be evaluated by other routers as a unitary segment rather than as a group of individual links/paths associated with the aggregated service or route. The aggregated service or route can be based on service and topology state information received from one or more other routers and can be advertised with the router as the nexthop for the aggregated service or route. The router can advertise an aggregated metric for the aggregated service or route for use in such evaluation. An aggregated route can be associated with different aggregated metrics for different services.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 4, 2021
    Assignee: 128 Technology, Inc.
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20210036953
    Abstract: Routing packets by a router involves establishing a first flow configured for forwarding the packets from a first ingress interface to a first egress interface of the router; determining a condition to modify the first flow; deactivating the first flow; establishing a second flow configured for forwarding the packets from at least one of (1) the first ingress interface to a second egress interface, (2) a second ingress interface to the first egress interface, or (3) a second ingress interface to a second egress interface; and activating the second flow.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 4, 2021
    Inventors: Abilash Menon, Anna Yungelson, Scott A. McCulley, Robert Penfield
  • Publication number: 20200366594
    Abstract: A routing system for distributing multicast routing information for a multicast service includes a plurality of routers including a multicast source router and a plurality of multicast receiver routers, the plurality of routers providing a multicast service, wherein the routers are configured to exchange multicast information associated with the multicast service including identification of multicast sources and the multicast receivers.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20200366589
    Abstract: A router advertises an aggregated service or route that can be evaluated by other routers as a unitary segment rather than as a group of individual links/paths associated with the aggregated service or route. The aggregated service or route can be based on service and topology state information received from one or more other routers and can be advertised with the router as the nexthop for the aggregated service or route. The router can advertise an aggregated metric for the aggregated service or route for use in such evaluation. An aggregated route can be associated with different aggregated metrics for different services.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20200366590
    Abstract: A routing system for implementing a service and topology exchange protocol (STEP) comprises a primary STEP server configured to maintain a STEP repository and a plurality of routers, each router including a STEP client in communication with the primary STEP server. The STEP client of each router is configured to transmit, using the service and topology exchange protocol, service and topology state information for at least one route or service available through the router to the primary STEP server for storage in the STEP repository.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20200366598
    Abstract: A routing system for implementing a service and topology exchange protocol (STEP) includes a primary STEP server configured to maintain a STEP repository and a plurality of routers, with each router including a STEP client in communication with the primary STEP server. The STEP client of each router is configured to transmit, using STEP, STEP documents containing service and topology state information for at least one route or service available through the router to the primary STEP server for storage in the STEP repository. The primary STEP server is configured to transmit to the STEP client of each router, using STEP, service and topology state information from the STEP repository for at least one other router based on configured relationships between routers. Each router is configured to make routing decisions based at least in part on the service and topology state information from the at least one other router.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20200366593
    Abstract: A routing system for providing multicast access control includes a plurality of routers including a multicast source router and a plurality of multicast receiver routers, the plurality of routers providing a multicast service, wherein the routers are configured to enforce multicast access control policies for the multicast service including a receiver access policy that controls which multicast receivers are allowed to receive packets from the multicast service and a sender access policy that controls which multicast sources are allowed to send packets to the multicast service for distribution to the multicast receivers.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Publication number: 20200366599
    Abstract: A routing system for routing packets for a route or service comprises a plurality of routers including a source router, wherein the source router is configured to receive, using a service and topology exchange protocol, service and topology state information from a STEP repository for at least one other router based on configured relationships between routers; determine a first path to a destination for a route or service based on the service and topology state information, the first path including an ordered list of successive routers to receive a packet associated with the route or service starting with a first successive router and ending with a destination router; and transmit a packet toward the first successive router with first metadata including a list of at least one remaining router of the ordered list of routers to receive the packet associated with the route or service.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Hadriel S. Kaplan, Abilash Menon, Patrick Timmons, Michael Baj, Robert Penfield, Patrick MeLampy
  • Patent number: 10841206
    Abstract: Routing packets by a router involves establishing a first flow configured for forwarding the packets from a first ingress interface to a first egress interface of the router; determining a condition to modify the first flow; deactivating the first flow; establishing a second flow configured for forwarding the packets from at least one of (1) the first ingress interface to a second egress interface, (2) a second ingress interface to the first egress interface, or (3) a second ingress interface to a second egress interface; and activating the second flow.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: November 17, 2020
    Assignee: 128 Technology, Inc.
    Inventors: Abilash Menon, Anna Yungelson, Scott A. McCulley, Robert Penfield