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公开(公告)号：US20250141792A1
公开(公告)日：2025-05-01
申请号：US19006064
申请日：2024-12-30
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Adrian Cepleanu , Praveen Ramadenu
Abstract: In one example, a method includes receiving a plurality of network probes originating from a first provider edge router in a service provider network, calculating a plurality of network performance metrics, based on the plurality of network probes, and storing the network performance metrics associated with each network probe of the plurality of network probes in a path metric table, wherein an entry in the path metric table for the each network probe includes a path traveled by the each network probe from the first provider edge router to the processing system, the network performance metrics associated with the each network probe, a community value associated with the each network probe, and a traffic classification value associated with the each network probe.
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公开(公告)号：US20250016095A1
公开(公告)日：2025-01-09
申请号：US18887215
申请日：2024-09-17
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Mark Lyn , Brian Freeman , Tuan Duong
IPC: H04L45/748 , H04L43/16 , H04L45/00 , H04L47/10
Abstract: Managing prefix lists at edge devices can include detecting, at an edge device, a traffic flow that can include a packet that specifies a destination address. The edge device can measure a bandwidth associated with the traffic flow, identify a flow bandwidth threshold defined for the edge device, and determine if the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold. If a determination is made that the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold, the edge device can include the destination address in a prefix list stored at the edge device. If a determination is made that the bandwidth associated with the traffic flow does not satisfy the flow bandwidth threshold, the edge device can omit the destination address from the prefix list stored at the edge device.
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公开(公告)号：US20230144568A1
公开(公告)日：2023-05-11
申请号：US17520128
申请日：2021-11-05
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Barry Elia
IPC: H04L12/725 , H04L12/707 , H04L12/715 , H04L12/717 , H04L12/741 , H04L12/751
Abstract: A routing structure is defined for provider edge (PE) routers that will create the ability to recompute best paths based on application criteria. The routing structure may include the use of a network controller which is connected with the internet to receive requests from applications to trigger path re-computation. The controller will peer with PEs to send re-computation information used by the PE to construct an application-aware BGP table and forwarding instance. The PE also defines a new BGP and packet filter to replicate specific BGP paths into the application-aware table. The application-aware BGP and forwarding instance is unique to the requesting application. Thus, each request with a different source/destination combination obtains a discrete table providing separation. When a packet enters the PE from customer edge (CE) or core interface the packet traverses a packet filter that when matched against source/destination is redirected to the appropriate application-aware forwarding table. Once in the application-aware table the packet is then forwarded along the application-aware path achieving the objective. The instantiation of the application-aware BGP and forwarding table is be done based on BGP updates learned from the controller.
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公开(公告)号：US20220278890A1
公开(公告)日：2022-09-01
申请号：US17748735
申请日：2022-05-19
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Praveen Ramadenu
IPC: H04L41/0668 , H04L45/586 , H04L41/0893 , H04L41/0677
Abstract: A recovery route reflector with a monitoring module and a BGP state establishment module is peered with a plurality of primary route reflectors. Each of the plurality of primary route reflectors is peered with a set of provider edge devices. The BGP state between the recovery route reflector and the plurality of primary route reflectors is periodically monitored. When a primary route reflector fails the BGP state between the recovery route reflector and the failed primary route reflectors is idle, and the recovery route reflector establishes a peer session with the provider edge devices that had been peered with the failed route reflector.
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公开(公告)号：US20220247685A1
公开(公告)日：2022-08-04
申请号：US17164224
申请日：2021-02-01
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Mark Lyn , Brian Freeman , Tuan Duong
IPC: H04L12/745 , H04L12/741 , H04L12/801 , H04L12/26
Abstract: Managing prefix lists at edge devices can include detecting, at an edge device, a traffic flow that can include a packet that specifies a destination address. The edge device can measure a bandwidth associated with the traffic flow, identify a flow bandwidth threshold defined for the edge device, and determine if the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold. If a determination is made that the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold, the edge device can include the destination address in a prefix list stored at the edge device. If a determination is made that the bandwidth associated with the traffic flow does not satisfy the flow bandwidth threshold, the edge device can omit the destination address from the prefix list stored at the edge device.
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Patent Agency Ranking
公开(公告)号：US11368355B2
公开(公告)日：2022-06-21
申请号：US16984530
申请日：2020-08-04
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Praveen Ramadenu
IPC: H04L12/24 , H04L12/713 , H04L41/0668 , H04L45/586 , H04L41/0893 , H04L41/0677
Abstract: A recovery route reflector with a monitoring module and a BGP state establishment module is peered with a plurality of primary route reflectors. Each of the plurality of primary route reflectors is peered with a set of provider edge devices. The BGP state between the recovery route reflector and the plurality of primary route reflectors is periodically monitored. When a primary route reflector fails the BGP state between the recovery route reflector and the failed primary route reflectors is idle, and the recovery route reflector establishes a peer session with the provider edge devices that had been peered with the failed route reflector.
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公开(公告)号：US10594514B2
公开(公告)日：2020-03-17
申请号：US15472918
申请日：2017-03-29
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Adrian Cepleanu , Dimitri Krinos
IPC: H04L12/46 , H04L12/28 , H04L12/741 , H04L29/12 , H04L12/715 , H04L12/751
Abstract: A system comprising a BAFX adapted to provide a route exchange between dissimilar address family interfaces; wherein the BAFX is a control plane BGP speaker that connects directly to each address family interface specific route reflector and wherein each address family interface specific route reflector advertises its BGP content to the BAFX for translation; and the BAFX translates a received address family interface format into a destination address family interface format and announces a reformatted route address to a destination route reflector.
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公开(公告)号：US20200014605A1
公开(公告)日：2020-01-09
申请号：US16030548
申请日：2018-07-09
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means , Praveen Ramadenu
IPC: H04L12/24 , H04L12/713 , H04L12/709
Abstract: A system and method for software defined network (SDN) management. Route information is received from a customer edge (CE) device. The route information is parsed to identify at least one virtual routing and forwarding (VRF) instance for which the route information is intended. The route information is imported into the VRF instance.
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公开(公告)号：US10305794B2
公开(公告)日：2019-05-28
申请号：US15470143
申请日：2017-03-27
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means
IPC: H04L12/28 , H04L12/713 , H04L12/66 , H04L12/741
Abstract: A system for indirect border gateway routing comprising a provider edge router; at least one virtual routing and forwarding instance (“VRF”) in communication with the provider edge router, each VRF including a route target; a pointer identification list in communication with the provider edge router, the pointer identification list containing at least one route target associated with a VRF; and a virtual routing and forwarding import instance adapted to receive a route from the provider edge router, the route including a pointer identification directing the virtual routing and forwarding import instance to scan the pointer identification list for the route target associated with the plural VRF, and wherein the virtual routing and forwarding import instance is further adapted to import the route to the at least one virtual routing and forwarding instance having a route target on the pointer identification list.
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公开(公告)号：US10178025B2
公开(公告)日：2019-01-08
申请号：US15401881
申请日：2017-01-09
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Israel Means
IPC: H04L12/28 , H04L12/741 , H04L29/06
Abstract: Methods and apparatus to route traffic in a virtual private network are disclosed herein. Example methods include replacing, by executing an instruction with a processor at a first provider router, a first next hop address included in first route information with a second next hop address. The first next hop address identifies a first edge router of a plurality of edge routers in a first region and the second next hop address identifies the first provider router. The provider router is not at an edge of a provider network included in the virtual private network and the first route information identifies a first route to a customer address in a customer network coupled to the first edge router. The methods also include advertising the first route information having the second next hop address to the plurality of edge routers if data traffic is to access a service.
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