Patents by Inventor Manoj Rautela

Manoj Rautela 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: 11695689
    Abstract: A Point of Local Repair (PLR) network element includes one or more ports and circuitry connected thereto for forwarding and control, wherein the circuitry is configured to receive a PATH message for a Label Switched Path (LSP) tunnel in a Multiprotocol Label Switching (MPLS) network with a specified DiffSery Traffic Engineering (DSTE) Class Type, determine the DSTE Class Type based on the PATH message, and store the DSTE Class Type for the LSP tunnel to ensure a Facility Bypass tunnel used for the LSP tunnel supports the specified DSTE Class Type. The circuitry can be further configured to, responsive to a failure of the LSP tunnel, select the Facility Bypass tunnel for the LSP tunnel such that the Facility Bypass tunnel supports the specified DSTE Class Type.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: July 4, 2023
    Assignee: Ciena Corporation
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela
  • Publication number: 20210352006
    Abstract: A Point of Local Repair (PLR) network element includes one or more ports and circuitry connected thereto for forwarding and control, wherein the circuitry is configured to receive a PATH message for a Label Switched Path (LSP) tunnel in a Multiprotocol Label Switching (MPLS) network with a specified DiffSery Traffic Engineering (DSTE) Class Type, determine the DSTE Class Type based on the PATH message, and store the DSTE Class Type for the LSP tunnel to ensure a Facility Bypass tunnel used for the LSP tunnel supports the specified DSTE Class Type. The circuitry can be further configured to, responsive to a failure of the LSP tunnel, select the Facility Bypass tunnel for the LSP tunnel such that the Facility Bypass tunnel supports the specified DSTE Class Type.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 11, 2021
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela
  • Patent number: 11088943
    Abstract: Systems and methods, in a Label Edge Router (LER) which includes one or more ports and a switching fabric therebetween, include, responsive to a request for a Label Switched Path (LSP) tunnel with a specified DiffServ Traffic Engineering (DSTE) Class Type, signaling a PATH message via a port for the LSP tunnel in a Multiprotocol Label Switching (MPLS) network; incorporating a FAST_REROUTE object in the PATH message which indicates Facility Bypass is desired; and incorporating the DSTE Class Type in the FAST_REROUTE object of the PATH message for a Point of Local Repair (PLR) node in the MPLS network to ensure a Facility Bypass tunnel used for the LSP tunnel supports the specified DSTE Class Type.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: August 10, 2021
    Assignee: Ciena Corporation
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela
  • Patent number: 10728087
    Abstract: Systems and methods for auto creation of bypass tunnels in Fast Reroute (FRR) downstream routers include configuring one or more Label Switched Path (LSP) tunnels between an ingress Label Edge Router (LER) and an egress LER via one or more Label Switch Routers (LSRs); signaling at least one LSP tunnel of the one or more LSP tunnels with a Resource Reservation Protocol (RSVP) PATH message containing a FAST_REROUTE object with a first flag indicating Facility Backup protection is desired and a second flag indicating auto generation of an associated FB bypass tunnel; and configuring the associated FB bypass tunnel between a Point of Local Repair (PLR) and a Merge Point (MP) based on the first flag and the second flag. The systems and methods can further include bypass tunnel reselection requests to a bypass tunnel with better protection.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 28, 2020
    Assignee: Ciena Corporation
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela, Vinay Prakash
  • Publication number: 20200177500
    Abstract: Systems and methods, in a Label Edge Router (LER) which includes one or more ports and a switching fabric therebetween, include, responsive to a request for a Label Switched Path (LSP) tunnel with a specified DiffServ Traffic Engineering (DSTE) Class Type, signaling a PATH message via a port for the LSP tunnel in a Multiprotocol Label Switching (MPLS) network; incorporating a FAST_REROUTE object in the PATH message which indicates Facility Bypass is desired; and incorporating the DSTE Class Type in the FAST_REROUTE object of the PATH message for a Point of Local Repair (PLR) node in the MPLS network to ensure a Facility Bypass tunnel used for the LSP tunnel supports the specified DSTE Class Type.
    Type: Application
    Filed: January 11, 2019
    Publication date: June 4, 2020
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela
  • Publication number: 20200014585
    Abstract: Systems and methods for auto creation of bypass tunnels in Fast Reroute (FRR) downstream routers include configuring one or more Label Switched Path (LSP) tunnels between an ingress Label Edge Router (LER) and an egress LER via one or more Label Switch Routers (LSRs); signaling at least one LSP tunnel of the one or more LSP tunnels with a Resource Reservation Protocol (RSVP) PATH message containing a FAST_REROUTE object with a first flag indicating Facility Backup protection is desired and a second flag indicating auto generation of an associated FB bypass tunnel; and configuring the associated FB bypass tunnel between a Point of Local Repair (PLR) and a Merge Point (MP) based on the first flag and the second flag. The systems and methods can further include bypass tunnel reselection requests to a bypass tunnel with better protection.
    Type: Application
    Filed: August 21, 2018
    Publication date: January 9, 2020
    Inventors: Gaurav Agarwal, Jayant Kumar Bhardwaj, Manoj Rautela, Vinay Prakash