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公开(公告)号：US11115319B2
公开(公告)日：2021-09-07
申请号：US16519703
申请日：2019-07-23
IPC分类号： H04L12/703 , H04L12/733 , H04L12/46
摘要： Examples disclosed herein relate to a method comprising receiving requesting, at a first network device, a Bidirectional Forwarding Detection session with a second network device, determining, by the first network device, that the BFD session is for single hop data and determining, by the first network device, that the BFD session is over a network tunnel from the first network device to the second network device. The method may include initiating the BFD session between the first and second network devices, wherein the BFD session is shared between multiple clients requesting BFD sessions on a network tunnel, but is not shared not between tunneled and non-tunneled sessions between the multiple clients. The method may include transmitting, the single hop data to the second network device via the network tunnel, wherein the network tunnel traverses a multiple hop network path and disabling echo packets for the BFD session.
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公开(公告)号：US11616694B2
公开(公告)日：2023-03-28
申请号：US16856628
申请日：2020-04-23
IPC分类号： H04L41/0873 , H04L41/12 , H04L45/28 , H04L45/12 , H04L45/18 , H04L101/622
摘要： The disclosure provides a method for determining a configuration mismatch between a first device and a second device. During operation, a first device receives a plurality of Unidirectional Link Detection (UDLD) protocol messages from a second device. The first device is configured with a first interval configuration value corresponding to a frequency which the first device sends the UDLD protocol messages to the second device. The first device determines a second interval configuration value of the second device, which corresponds to a frequency which the second device sends the UDLD protocol messages to the first device. The first device determines that there is a configuration mismatch between the first device and the second device, and creates a log entry for the configuration mismatch, the log entry including the first and second interval configuration values.
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公开(公告)号：US11290319B2
公开(公告)日：2022-03-29
申请号：US16449681
申请日：2019-06-24
发明人： David Corrales Lopez , Andres Francisco Araya Rojas , Johan Martin Oviedo Paniagua , Daniel Canessa Valverde
IPC分类号： H04L41/0663 , H04L41/0668 , H04L43/10
摘要： A method and system of failure detection in a computer network, including pre-programming a number of processors of a multi-processor networked system coupled with remote systems via a network, each of the processors configured to run a BFD module. One processor may be assigned to be an active BFD server to establish sessions between the multi-processor networked system and the remote systems to detect link faults between the multi-processor networked system and the remote systems. Other processors may be assigned as dormant BFD clients. If a link or a processor running the active BFD server fails, one of the dormant BFD clients is selected to become an active BFD server. The BFD server may be dynamically replaced with a dormant client based on predetermined criteria without failure of the BFD server.
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公开(公告)号：US20210029024A1
公开(公告)日：2021-01-28
申请号：US16519703
申请日：2019-07-23
IPC分类号： H04L12/703 , H04L12/46 , H04L12/733
摘要： Examples disclosed herein relate to a method comprising receiving requesting, at a first network device, a Bidirectional Forwarding Detection session with a second network device, determining, by the first network device, that the BFD session is for single hop data and determining, by the first network device, that the BFD session is over a network tunnel from the first network device to the second network device. The method may include initiating the BFD session between the first and second network devices, wherein the BFD session is shared between multiple clients requesting BFD sessions on a network tunnel, but is not shared not between tunneled and non-tunneled sessions between the multiple clients. The method may include transmitting, the single hop data to the second network device via the network tunnel, wherein the network tunnel traverses a multiple hop network path and disabling echo packets for the BFD session.
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