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公开(公告)号：US20190007305A1
公开(公告)日：2019-01-03
申请号：US15986174
申请日：2018-05-22
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Peter Psenak , Francois Clad , Jose Antonio Liste
IPC: H04L12/725 , H04L12/24
Abstract: Various implementations disclosed herein enable malleable routing for data packets. For example, in various implementations, a method of routing a type of data packets is performed by a device. In some implementations, the device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, the method includes determining a routing criterion to transmit a set of data packets across a network. In some implementations, the method includes identifying network nodes and communication links in the network that satisfy the routing criterion. In some implementations, the method includes determining a route for the set of data packets through the network nodes and the communication links that satisfy the routing criterion. In some implementations, the method includes configuring the network nodes that are on the route with configuration information that allows the set of data packets to propagate along the route.
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公开(公告)号：US10135716B2
公开(公告)日：2018-11-20
申请号：US14996541
申请日：2016-01-15
Applicant: Cisco Technology, Inc.
Inventor： Pierre Francois , Francois Clad , Alan Gous , Clarence Filsfils
IPC: H04L12/733 , H04L12/721 , H04L12/729
Abstract: A method and related apparatus for providing latency optimized segment routing tunnels is described herein and includes obtaining a latency metric for each segment that links respective pairs of nodes in a network, determining a tunnel through the network between a first endpoint and a second endpoint that is optimized for latency, and, once such a tunnel is determined, causing a packet to travel along the tunnel that is optimized for latency by encoding the packet with segment routing instructions for the network, wherein the network is configured to provide shortest paths according to a metric other than latency.
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公开(公告)号：US20170111261A1
公开(公告)日：2017-04-20
申请号：US14996541
申请日：2016-01-15
Applicant: Cisco Technology, Inc.
Inventor： Pierre Francois , Francois Clad , Alan Gous , Clarence Filsfils
IPC: H04L12/733 , H04L12/729 , H04L12/721
CPC classification number: H04L45/122 , H04L45/125 , H04L45/44
Abstract: A method and related apparatus for providing latency optimized segment routing tunnels is described herein and includes obtaining a latency metric for each segment that links respective pairs of nodes in a network, determining a tunnel through the network between a first endpoint and a second endpoint that is optimized for latency, and, once such a tunnel is determined, causing a packet to travel along the tunnel that is optimized for latency by encoding the packet with segment routing instructions for the network, wherein the network is configured to provide shortest paths according to a metric other than latency.
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公开(公告)号：US12267233B2
公开(公告)日：2025-04-01
申请号：US17538513
申请日：2021-11-30
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Pablo Camarillo Garvia , Ahmed Mohamed Ahmed Abdelsalam , Francois Clad
IPC: H04L45/00 , H04L45/302 , H04L45/74
Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to encode network functions in a packet header. A method includes receiving a first packet from a source device that is to be delivered to a destination address through a network; determining a route to the destination address; identifying at least one network function for the first packet; encapsulating the first packet in a second packet, wherein a header of the second packet includes the route to the destination address in a destination address field and local processing metadata associated with the at least one network function in a source address field; and forwarding the second packet to a next network node of the network identified in the destination address.
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45.发明公开公开(公告)号：US20240348559A1
公开(公告)日：2024-10-17
申请号：US18357029
申请日：2023-07-21
Applicant: Cisco Technology, Inc.
Inventor： Christian Schmutzer , Francois Clad , Stephane Litkowski
IPC: H04L47/726 , H04L45/50 , H04L45/52
CPC classification number: H04L47/726 , H04L45/50 , H04L45/52
Abstract: Techniques for enabling a resource reservation routing protocol (e.g., the Resource Reservation Protocol-Traffic Engineering (RSVP-TE) protocol) to perform routing operations based at least in part on bandwidth reservations by a non-reservation protocol (e.g., the Segment Routing (SR) protocol) are described herein. In some cases, the techniques described herein enable an example network to use both a resource reservation protocol and a non-reservation protocol. In some cases, one or more bandwidth reservation measures associated with a label-switched path (LSP) associated with a non-reservation protocol (e.g., an SR LSP) are used to create LSPs associated with a resource reservation protocol (e.g., RSVP-TE LSPs).
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Patent Agency Ranking
公开(公告)号：US20230396486A1
公开(公告)日：2023-12-07
申请号：US18345246
申请日：2023-06-30
Applicant: Cisco Technology, Inc.
Inventor： Peter Psenak , Lester C. Ginsberg , Ketan Jivan Talaulikar , Clarence Filsfils , Francois Clad , Stephane Litkowski
IPC: H04L41/0654 , H04L41/0631 , H04L41/0686
CPC classification number: H04L41/0654 , H04L41/0631 , H04L41/0686
Abstract: The present technology is directed to signaling unreachability of a network device, more specifically, a prefix of the network device in network that utilizes route summarization. A pulse trigger agent can detect an unreachability of at least one Provider Edge (PE) device in a network domain of a network and determine that a route summarization is being used within the network where the unreachability of the at least one PE device is hidden by the route summarization. A pulse distribution agent can transmit a failure message informing other PE devices of the unreachability of the at least one PE device.
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公开(公告)号：US20220394109A1
公开(公告)日：2022-12-08
申请号：US17820000
申请日：2022-08-16
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Francois Clad , Pablo Camarillo Garvia , Siva Sivabalan , Syed Kamran Raza
Abstract: In one embodiment, a method includes identifying, by a network component, a first segment identifier (SID) within a SID list. The first SID includes a first SID block and a first micro SID (uSID). The method also includes initializing, by the network component, a packing list of a uSID carrier with the first uSID of the first SID and initializing, by the network component, a packing block of the uSID carrier with the first SID block of the first SID. The method further includes initializing, by the network component, a remaining packing capacity of the packing list with a carrier capacity of the first SID and initializing, by the network component, an empty compressed SID list.
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公开(公告)号：US11463561B2
公开(公告)日：2022-10-04
申请号：US16948369
申请日：2020-09-15
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Francois Clad , Pablo Camarillo Garvia , David Delano Ward
IPC: H04L12/741 , H04L12/46 , H04L69/22 , H04L69/324 , H04L45/00 , H04L67/10 , H04L45/02 , H04L45/50 , H04L61/5007 , H04L67/63 , H04L45/74 , H04L49/35 , H04L45/741 , H04L61/2503 , H04L101/659 , H04L43/028 , H04L9/40 , H04L45/745
Abstract: In one embodiment, new Segment Routing capabilities are used in the steering of packets through Segment Routing nodes in a network. A Segment List includes a set of one or more Segment List (SL) Groups, each of which identifies one or more Segments contiguously or non-contiguously stored in the Segment List (or stored across multiple Segment Lists) of a Segment Routing packet. Each SL Group typically includes one Segment that is encoded as a Segment Identifier, and may include Segments that are Extended Values. The steering order of SL Groups is not required to be the same order as they are listed in the Segment List, as the value of Segments Left may be increased, remain the same, or decreased (possibly to skip a next SL Group) and possibly based on the result of an evaluation of a conditional expression.
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公开(公告)号：US20220191134A1
公开(公告)日：2022-06-16
申请号：US17685986
申请日：2022-03-03
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Peter Psenak , Francois Clad , Jose Antonio Liste
Abstract: Various implementations disclosed herein enable malleable routing for data packets. For example, in various implementations, a method of routing a type of data packets is performed by a device. In some implementations, the device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, the method includes determining a routing criterion to transmit a set of data packets across a network. In some implementations, the method includes identifying network nodes and communication links in the network that satisfy the routing criterion. In some implementations, the method includes determining a route for the set of data packets through the network nodes and the communication links that satisfy the routing criterion. In some implementations, the method includes configuring the network nodes that are on the route with configuration information that allows the set of data packets to propagate along the route.
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公开(公告)号：US20220191133A1
公开(公告)日：2022-06-16
申请号：US17685857
申请日：2022-03-03
Applicant: Cisco Technology, Inc.
Inventor： Clarence Filsfils , Peter Psenak , Francois Clad , Jose Antonio Liste
Abstract: Various implementations disclosed herein enable malleable routing for data packets. For example, in various implementations, a method of routing a type of data packets is performed by a device. In some implementations, the device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, the method includes determining a routing criterion to transmit a set of data packets across a network. In some implementations, the method includes identifying network nodes and communication links in the network that satisfy the routing criterion. In some implementations, the method includes determining a route for the set of data packets through the network nodes and the communication links that satisfy the routing criterion. In some implementations, the method includes configuring the network nodes that are on the route with configuration information that allows the set of data packets to propagate along the route.
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