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公开(公告)号：US20250023809A1
公开(公告)日：2025-01-16
申请号：US18456731
申请日：2023-08-28
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Prabhu Vaithilingam , Gerald Smallegange , Alwyn Joy George
Abstract: Systems and methods for zero touch configuration for a mesh of nodes using Segment Routing Flexible Algorithm define a Flex Algo Definition (FAD) of an auto-mesh plane. A method, in one embodiment, includes, responsive to the FAD, providing an advertisement of a Prefix Segment Identifier (SID) for a node in the auto-mesh plane; and including a flag in the advertisement designating whether the node is a destination node or a non-destination node in the auto-mesh plane. The destination node is one which requires transport connectivity to all other destination nodes in the auto-mesh plane, and the non-destination node is one used for reachability to all the destination nodes.
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公开(公告)号：US20240205142A1
公开(公告)日：2024-06-20
申请号：US18101677
申请日：2023-01-26
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Prabhu Vaithilingam , Gerald Smallegange , Alwyn Joy George
IPC: H04L45/00 , H04L45/121
CPC classification number: H04L45/34 , H04L45/121
Abstract: Systems and methods include maintaining a network plane in Segment Routing (SR) Flexible Algorithm having a Flexible Algorithm Definition (FAD) based on latency; receiving a request for a service over a SR network where the service is sensitive to a specific latency; and determining a label stack including one or more Segment Identifiers (SID) for the service, with the one or more SIDs based on the network plane in SR Flexible Algorithm. This can be used for Private Line Emulation (PLE) services and Circuit Emulation (CEM) services over SR, ensuring latency while not requiring large label stacks.
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公开(公告)号：US11271854B2
公开(公告)日：2022-03-08
申请号：US16797092
申请日：2020-02-21
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Anand Srinivasan , Gerald Smallegange
Abstract: A source node in a first domain in a multi-domain network includes a plurality of ports; and switching circuitry configured to forward packets between the plurality of ports, wherein the source node is configured to, for a packet destined for a destination node in another domain in the multi-domain network, add a list of Segment Identifiers (SIDs) to the packet for loose source-based routing from the source node, through the first domain, and to the another domain, and forward the packet via a port of the plurality of ports and with the list of SIDs, wherein the list of SIDs includes at least one SID representing both an anycast SID and a binding SID. The SID is associated with an anycast group that includes a plurality of nodes, and with a binding segment in the second domain, the binding segment includes a different SID list for each node of the plurality of nodes.
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Patent Agency Ranking
4.发明公开公开(公告)号：US20240073125A1
公开(公告)日：2024-02-29
申请号：US17897675
申请日：2022-08-29
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Prabhu Vaithilingam , Gerald Smallegange
IPC: H04L45/28 , H04L45/036
CPC classification number: H04L45/28 , H04L45/036
Abstract: Systems and methods for dynamic path computation in networks based on automatically detected unavoidable risks include receiving a plurality of shared risks associated with any of one or more network layers, network links, and network equipment; automatically creating a local ignore list for a source node and a remote ignore list for a destination node, based on the plurality of shared risks; and utilizing the plurality of shared risks in a path computation for a path between the source node and the destination node and ignoring any of the plurality of shared risks in the local ignore list and the remote ignore list.
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公开(公告)号：US11909622B1
公开(公告)日：2024-02-20
申请号：US18342238
申请日：2023-06-27
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Prabhu Vaithilingam Vaithilingam , Gerald Smallegange , Alwyn Joy George
Abstract: Systems and methods for extended protection in a Segment Routing network that utilizes Flexible Algorithm include defining a first Flexible Algorithm that segregates the Segment Routing network into a first subset network that excludes any of links and nodes from the Segment Routing network; defining a second Flexible Algorithm that segregates the Segment Routing network into a second subset network, different from the first subset network; and defining extended protection for the first Flexible Algorithm with the second Flexible Algorithm whereby the second Flexible Algorithm is usable for path to protect the first Flexible Algorithm.
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公开(公告)号：US20210266251A1
公开(公告)日：2021-08-26
申请号：US16797092
申请日：2020-02-21
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Anand Srinivasan , Gerald Smallegange
IPC: H04L12/723 , H04L12/721 , H04L12/715 , H04L12/707 , H04L12/703 , H04L12/931 , H04L12/741
Abstract: A source node in a first domain in a multi-domain network includes a plurality of ports; and switching circuitry configured to forward packets between the plurality of ports, wherein the source node is configured to, for a packet destined for a destination node in another domain in the multi-domain network, add a list of Segment Identifiers (SIDs) to the packet for loose source-based routing from the source node, through the first domain, and to the another domain, and forward the packet via a port of the plurality of ports and with the list of SIDs, wherein the list of SIDs includes at least one SID representing both an anycast SID and a binding SID. The SID is associated with an anycast group that includes a plurality of nodes, and with a binding segment in the second domain, the binding segment includes a different SID list for each node of the plurality of nodes.
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公开(公告)号：US12052161B2
公开(公告)日：2024-07-30
申请号：US17682294
申请日：2022-02-28
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Senthil Balakrishnan , Shashanka Shobhit Shankara
CPC classification number: H04L45/123 , H04L45/24 , H04L45/42 , H04L45/50
Abstract: Systems and methods for computing forward and reverse paths and checking the liveness, keep-alive status, or continuity of the forward and reverse paths are provided. A method, according to one implementation, includes the step of creating one or more messages related to a computation of a forward path from a head-end node to a tail-end node and a computation of a reverse path from the tail-end node to the head-end node. The method also includes the step of adding a data object to the one or more messages, the data object including an intent to check the liveness of the forward path and reverse path.
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公开(公告)号：US20230275827A1
公开(公告)日：2023-08-31
申请号：US17682294
申请日：2022-02-28
Applicant: Ciena Corporation
Inventor： Bhupendra Yadav , Senthil Balakrishnan , Shashanka Shobhit Shankara
CPC classification number: H04L45/123 , H04L45/24 , H04L45/42 , H04L45/50
Abstract: Systems and methods for computing forward and reverse paths and checking the liveness, keep-alive status, or continuity of the forward and reverse paths are provided. A method, according to one implementation, includes the step of creating one or more messages related to a computation of a forward path from a head-end node to a tail-end node and a computation of a reverse path from the tail-end node to the head-end node. The method also includes the step of adding a data object to the one or more messages, the data object including an intent to check the liveness of the forward path and reverse path.
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