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公开(公告)号:US20240048407A1
公开(公告)日:2024-02-08
申请号:US18488216
申请日:2023-10-17
发明人: Jie Li
IPC分类号: H04L12/437 , H04L67/12
CPC分类号: H04L12/437 , H04L67/12
摘要: This application provides a network establishing method, an Ethernet system, and a vehicle. A network includes M backbone nodes. Each of the M backbone nodes includes a first backbone port and a second backbone port. The M backbone nodes form a ring network by using the first backbone ports and the second backbone ports. M is an integer greater than 2. The M backbone nodes include a first backbone node. The first backbone port of the first backbone node is in a forwarding state, and the second backbone port of the first backbone node is in a blocked state. Both the first backbone port and the second backbone port of another backbone node are in a forwarding state.
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公开(公告)号:US20230396464A1
公开(公告)日:2023-12-07
申请号:US18455111
申请日:2023-08-24
发明人: Qichang Chen , Min Zha , Dongdong He
IPC分类号: H04L12/437 , H04L67/12
CPC分类号: H04L12/437 , H04L67/12
摘要: In a data transmission method, each ring network interface is associated with a ring identifier, and a ring-incoming packet carries a ring identifier of a ring network interface through which the packet is first forwarded. When a node in a ring network detects a link fault in a process of transmitting a packet, the node determines, with reference to a ring identifier and a wrapping identifier carried in the packet, to perform wrapping or discard the packet. According to the method, two sub-ring networks of a dual-ring coupled ring network can be allowed to separately implement one time of wrapping.
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公开(公告)号:US11805065B2
公开(公告)日:2023-10-31
申请号:US16287339
申请日:2019-02-27
申请人: Intel Corporation
IPC分类号: H04W72/12 , H04L47/50 , H04L47/60 , H04L47/52 , H04L47/62 , H04L47/80 , H04L49/90 , H04L47/74 , H04L47/525 , H04L1/1867 , H04W72/1263 , H04L1/1829 , H04W52/02 , H04J3/08 , H04L12/437 , H04W52/26 , H04L41/5009 , H04L12/40
CPC分类号: H04L47/58 , H04L1/1854 , H04L1/1887 , H04L47/522 , H04L47/525 , H04L47/60 , H04L47/6215 , H04L47/74 , H04L47/805 , H04L47/808 , H04L49/9031 , H04W52/0216 , H04W72/12 , H04W72/1263 , H04J3/085 , H04L12/4015 , H04L12/437 , H04L41/5012 , H04W52/265
摘要: Packets are differentiated based on their traffic class. A traffic class is allocated bandwidth for transmission. One or more core or thread can be allocated to process packets of a traffic class for transmission based on allocated bandwidth for that traffic class. If multiple traffic classes are allocated bandwidth, and a traffic class underutilizes allocated bandwidth or a traffic class is allocated insufficient bandwidth, then allocated bandwidth can be adjusted for a future transmission time slot. For example, a higher priority traffic class with excess bandwidth can share the excess bandwidth with a next highest priority traffic class for use to allocate packets for transmission for the same time slot. In the same or another example, bandwidth allocated to a traffic class depends on an extent of insufficient allocation or underutilization of allocated bandwidth such that a traffic class with insufficient allocated bandwidth in one or more prior time slot can be provided more bandwidth in a current time slot and a traffic class with underutilization of allocated bandwidth can be provided with less allocated bandwidth for a current time slot.
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公开(公告)号:US11777869B2
公开(公告)日:2023-10-03
申请号:US16170366
申请日:2018-10-25
申请人: Arm Limited
IPC分类号: H04B10/275 , H04L47/783 , H04L41/0896 , H04L47/30 , H04L41/0806 , H04J3/16 , H04J3/08 , H04B10/2575 , H04L12/437 , H04L49/102 , H04J3/14 , H04L47/10
CPC分类号: H04L47/783 , H04B10/25755 , H04B10/275 , H04J3/085 , H04J3/167 , H04L12/437 , H04L41/0806 , H04L41/0896 , H04L47/30 , H04L49/102 , H04J3/14 , H04L47/13
摘要: A ring interconnect system comprises a plurality of nodes. Each node is connected to two other nodes to form a ring interconnect. Every pair of nodes is connected by an inter-node path for that pair of nodes distinct from the ring interconnect. Each of the nodes comprises a message buffer to buffer messages received from at least one device associated with the node. Each of the nodes also comprises activity level circuitry to transmit an activity indication, when a number of the messages in the message buffer is equal to or above a threshold, to each other node of the plurality of nodes via the respective inter-node paths. Each of the nodes also comprises arbitrator circuitry to receive the activity indications from each other node and from the activity level circuitry, and to allow ingress of a message from the message buffer onto the ring interconnect in dependence on the activity indications. Also provided is a method of operating a node of a ring interconnect system.
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公开(公告)号:US11652664B2
公开(公告)日:2023-05-16
申请号:US17221807
申请日:2021-04-04
IPC分类号: H04L12/423 , H04L12/46 , H04L12/437 , H04L45/74 , H04L41/0604 , H04L12/42 , H04L101/622
CPC分类号: H04L12/423 , H04L12/437 , H04L12/4625 , H04L41/0627 , H04L45/74 , H04L2012/421 , H04L2101/622
摘要: Examples disclosed herein relate to managing a second ring link failure in a multi-ring Ethernet network. In an example, an inter-connection network node in a multi-ring Ethernet network comprising a major ring and a sub-ring may propagate a signal failure (SF) event, received in response to a second ring link failure in the major ring, to one or more nodes in the sub-ring. In response to receiving the SF event, a Ring Protection Link (RPL) on the sub-ring may be unlocked to allow network traffic through the RPL and avoid loop formation on the multi-ring Ethernet network. The sub-ring may be moved to the ring protection switching state, including performing a filtering database (FDB) flush at every node on the multi-ring Ethernet network whereby all MAC addresses and related port associations for traffic forwarding are cleared from the FDB.
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公开(公告)号:US10056985B2
公开(公告)日:2018-08-21
申请号:US15572774
申请日:2016-08-17
发明人: Yanfen Xu , Shijun Jiang , Shukun Xue
IPC分类号: H04B10/00 , H04B10/85 , H04L12/437 , H04L29/06 , H04Q11/00 , B61L15/00 , B61L27/00 , H04L29/08
CPC分类号: H04B10/85 , B60L2200/26 , B61L15/0027 , B61L15/0036 , B61L15/0072 , B61L27/0005 , H04L12/437 , H04L29/06 , H04L63/0227 , H04L63/0853 , H04L67/12 , H04Q11/0066 , H04Q2011/0079 , H04Q2213/13339
摘要: A broadband communication network architecture with a train control network and a train serving network combined, is characterized by, comprising a trusted network and an untrusted network; the trusted network comprises a trusted carriage-level network element provided in each carriage, and in each of a front carriage and a last carriage, in addition to the trusted carriage-level network element, a trusted train-level network element is provided; the untrusted network comprises untrusted train-level network elements respectively provided in the front carriage and the last carriage; one trusted train-level network element communicates with one untrusted train-level network element via a security gateway, and several security gateways are redundant to each other. The network architecture of the present application is a broadband communication network architecture combining a train control network and a train serving network, by which the train control information, the monitored information and the diagnostic information, as well as the passenger information and the video information can be transmitted in a combined network, i.e., the transmission of the data from the passenger information serving system network and the data from the train control network in a combined network, thereby meeting a demand for a bandwidth of the passenger information serving system network and ensuring a stability of the train network.
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公开(公告)号:US09998212B2
公开(公告)日:2018-06-12
申请号:US14905849
申请日:2014-06-19
申请人: ZTE Corporation
发明人: Hongxiang Guo , Dongxu Zhang , Xue Chen , Jian Wu , Gaofeng An
IPC分类号: G02F1/00 , H04J14/00 , H04B10/20 , H04B10/032 , H04B10/079 , H04B10/275 , H04Q11/00 , H04L12/437 , H04L12/24
CPC分类号: H04B10/032 , H04B10/07955 , H04B10/275 , H04L12/437 , H04L41/0668 , H04Q11/0066 , H04Q2011/0081 , H04Q2011/0092
摘要: Provided are a method, a system and a node for implementing APS in an OBRing network. The method comprises: a master node and a slave node separately perform optical power monitoring on respective channels, and aggregate monitoring results to the master node; when determining, according to the monitoring results, that a fault occurs, the master node sends a switching operation instruction to the slave node; and the slave node performs a switching operation and enters a protection working state. With the disclosure, a protection switching mechanism is introduced to the OBRing, which implements the processing on fault and ensures the communication quality of the OBRing.
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8.
公开(公告)号:US09979632B2
公开(公告)日:2018-05-22
申请号:US15000803
申请日:2016-01-19
发明人: Pankaj Shukla , Sunesh Rustagi
IPC分类号: H04L12/707 , H04L12/721 , H04L12/715 , H04L12/703 , H04L12/723 , H04L12/437 , H04L12/46
CPC分类号: H04L45/22 , H04L12/437 , H04L12/4641 , H04L45/04 , H04L45/28 , H04L45/50 , H04L45/66
摘要: Data traffic loss in a an Ethernet Ring that is multihomed, in an active-standby manner, to a VPLS transport network (such as a Border Gateway Protocol (BGP) multihomed Ethernet Ring, an MC-LAG multihomed Ethernet Ring, or some other type of active-standby multihomed Ethernet Ring, etc.) (ring) is avoided. The exemplary multihomed ring running Ethernet Ring Protection (ERP) protocol includes a Ring Protection Link (RPL), a first node and a second node linked with a designated border router and a standby border router of the network, respectively. The data traffic loss in the multihomed ring is avoided by (i) receiving an indication that the link between the first node and the designated border router has failed; and (ii) invoking, responsive to the received indication, an ERP Media Access Control (MAC)-flush in the ring, even in the absence of a failed link in the ring and without activating the specified RPL. The ERP MAC-flush causes subsequent data packets from each of the plurality of nodes in the ring to be forwarded to the standby border router via the second node.
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公开(公告)号:US20180123703A1
公开(公告)日:2018-05-03
申请号:US15572774
申请日:2016-08-17
发明人: YANFEN XU , SHIJUN JIANG , SHUKUN XUE
CPC分类号: H04B10/85 , B60L2200/26 , B61L15/0027 , B61L15/0036 , B61L15/0072 , B61L27/0005 , H04L12/437 , H04L29/06 , H04L63/0227 , H04L63/0853 , H04L67/12 , H04Q11/0066 , H04Q2011/0079 , H04Q2213/13339
摘要: A broadband communication network architecture with a train control network and a train serving network combined, is characterized by, comprising a trusted network and an untrusted network; the trusted network comprises a trusted carriage-level network element provided in each carriage, and in each of a front carriage and a last carriage, in addition to the trusted carriage-level network element, a trusted train-level network element is provided; the untrusted network comprises untrusted train-level network elements respectively provided in the front carriage and the last carriage; one trusted train-level network element communicates with one untrusted train-level network element via a security gateway, and several security gateways are redundant to each other. The network architecture of the present application is a broadband communication network architecture combining a train control network and a train serving network, by which the train control information, the monitored information and the diagnostic information, as well as the passenger information and the video information can be transmitted in a combined network, i.e., the transmission of the data from the passenger information serving system network and the data from the train control network in a combined network, thereby meeting a demand for a bandwidth of the passenger information serving system network and ensuring a stability of the train network.
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公开(公告)号:US09954797B2
公开(公告)日:2018-04-24
申请号:US15462456
申请日:2017-03-17
发明人: Coke S. Reed , David Murphy
IPC分类号: H04L12/28 , H04L12/933 , H04L12/741
CPC分类号: H04L49/1523 , H04L12/437 , H04L45/74
摘要: An interconnect apparatus enables improved signal integrity, even at high clock rates, increased bandwidth, and lower latency. An interconnect apparatus can comprise a plurality of logic units and a plurality of buses coupling the plurality of logic units in a selected configuration of logic units arranged in triplets comprising logic units LA, LC, and LD. The logic units LA and LC are positioned to send data to the logic unit LD. The logic unit LC has priority over the logic unit LA to send data to the logic unit LD. For a packet PKT divided into subpackets, a subpacket of the packet PKT at the logic unit LA, and the packet specifying a target either: (A) the logic unit LC sends a subpacket of the packet PKT to the logic unit LD and the logic unit LA does not send a subpacket of the packet PKT to the logic unit LD; (B) the logic unit LC does not send a subpacket of data to the logic unit LD and the logic unit LA sends a subpacket of the packet PKT to the logic unit LD; or (C) the logic unit LC does not send a subpacket of data to the logic unit LD and the logic unit LA does not send a subpacket of the packet PKT to the logic unit LD.
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