公开(公告)号：US10560391B2

公开(公告)日：2020-02-11

申请号：US15874491

申请日：2018-01-18

Applicant: Cisco Technology, Inc.

Inventor： Rong Pan ,  Parvin Taheri ,  Liyuan Quan ,  Sha Ma ,  Krishnan Subramani

IPC: H04L12/835 ,  H04L12/861 ,  H04L12/825

Abstract: A network device is configured to transmit acknowledgement packets according to the length of the egress queue. The network device receives data packets from one or more endpoints and buffers the data packets in an egress buffer before transmitting the data packets. The network device also receives acknowledgement packets that are sent in response to data packets previously transmitted by the network device. The network device buffers the acknowledgement packets in an acknowledgement buffer. The network device transmits the acknowledgement packets at an acknowledgment rate that is based on a queue length of the egress buffer.

公开(公告)号：US10117066B2

公开(公告)日：2018-10-30

申请号：US14485050

申请日：2014-09-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Lillian Lei Dai ,  Flavio Bonomi ,  Xiaoqing Zhu ,  Fabio R. Maino ,  Pere Monclus ,  Rong Pan ,  Preethi Natarajan ,  Vina Ermagan ,  Alexander Loukissas

IPC: H04W4/00 ,  H04W4/04 ,  H04W76/45 ,  H04W72/04 ,  H04W28/06 ,  H04W52/12 ,  G06F9/54 ,  H04W48/06 ,  H04W48/18 ,  B60W50/10 ,  G06F3/01 ,  G06F3/16 ,  H04L12/26 ,  H04L29/06 ,  H04W12/08 ,  G06F21/45 ,  H04W12/06 ,  H04W28/02 ,  H04W40/20 ,  H04W48/02 ,  H04L29/08 ,  B60R16/023 ,  H04L12/721 ,  H04L29/12 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W40/02 ,  H04L1/00 ,  H04W4/10 ,  H04W12/02 ,  H04W12/04 ,  H04W76/00 ,  H04W80/02 ,  H04Q9/00 ,  H04L12/58 ,  H04W48/16 ,  H04W84/00 ,  H04W36/08 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/34 ,  H04W84/12 ,  H04W92/18

Abstract: A method in one embodiment includes intercepting a message in an on-board unit (OBU) of a vehicular network environment between a source and a receiver in the vehicular network environment, verifying the message is sent from the source, verifying the message is not altered, evaluating a set of source flow control policies associated with the source, and blocking the message if the set of source flow control policies indicate the message is not permitted. In specific embodiments, the message is not permitted if a level of access assigned to the source in the set of source flow control policies does not match a level of access tagged on the message. In further embodiments, the method includes evaluating a set of receiver flow control policies associated with the receiver, and blocking the message if the set of receiver flow control policies indicates the message is not permitted.

公开(公告)号：US20180139138A1

公开(公告)日：2018-05-17

申请号：US15869531

申请日：2018-01-12

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  H04L12/911 ,  H04L12/707 ,  H04L12/923

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US09923828B2

公开(公告)日：2018-03-20

申请号：US15003172

申请日：2016-01-21

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L1/00 ,  H04L5/22 ,  H04L12/16 ,  H04L12/803 ,  H04L12/911 ,  H04L12/923 ,  H04L12/707

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US09742683B1

公开(公告)日：2017-08-22

申请号：US14931588

申请日：2015-11-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Erico Vanini ,  Rong Pan ,  Thomas J. Edsall

IPC: H04L12/863 ,  H04L12/875 ,  H04L12/865

CPC classification number: H04L47/6275 ,  H04L47/2458 ,  H04L47/6215 ,  H04L47/6255 ,  H04L47/6285

Abstract: A method is provided in one example embodiment and includes determining whether a packet received at a network node in a communications network is a high priority packet; determining whether a low priority queue of the network node has been deemed to be starving; if the packet is a high priority packet and the low priority queue has not been deemed to be starving, adding the packet to a high priority queue, wherein the high priority queue has strict priority over the low priority queue; and if the packet is a high priority packet and the low priority queue has been deemed to be starving, adding the packet to the low priority queue.

公开(公告)号：US20170085485A1

公开(公告)日：2017-03-23

申请号：US15003172

申请日：2016-01-21

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  H04L12/923 ,  H04L12/707 ,  H04L12/911

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US09485289B2

公开(公告)日：2016-11-01

申请号：US14012225

申请日：2013-08-28

Applicant: Cisco Technology, Inc.

Inventor： Xiaoqing Zhu ,  Zhi Li ,  Rong Pan ,  Joshua B. Gahm ,  Hao Hu

IPC: G06F15/16 ,  H04L29/06 ,  H04L12/811 ,  H04L12/825 ,  H04L12/835

CPC classification number: H04L65/601 ,  H04L47/25 ,  H04L47/30 ,  H04L47/38 ,  H04L65/60 ,  H04L65/608 ,  H04L67/02

Abstract: In one embodiment, an HTTP streaming session may be initiated at a client device in a network. The client device may have a buffer and may be configured to request and receive one or more data segments over HTTP from an HTTP server. A first data segment at a first data source rate may be requested and subsequently received. The first data segment may be stored in the buffer. A second data source rate may then be calculated based on a storage level in the buffer, and a second data segment at the second data source rate may be requested.

Abstract translation: 在一个实施例中，可以在网络中的客户端设备处发起HTTP流传输会话。 客户端设备可以具有缓冲器，并且可以被配置为通过HTTP从HTTP服务器请求和接收一个或多个数据段。 可以请求并随后接收第一数据源速率的第一数据段。 第一数据段可以存储在缓冲器中。 然后可以基于缓冲器中的存储级别来计算第二数据源速率，并且可以请求第二数据源速率的第二数据段。

公开(公告)号：US09277370B2

公开(公告)日：2016-03-01

申请号：US14242122

申请日：2014-04-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sateesh K. Addepalli ,  Ashok K. Moghe ,  Flavio Bonomi ,  Marc Jean-Philippe Girardot ,  Vijaynarayanan Subramanian ,  Lillian Lei Dai ,  Rong Pan ,  Preethi Natarajan ,  Xiaoqing Zhu ,  Pascal Thubert ,  Chiu Ngok Eric Wong

IPC: H04J3/18 ,  H04W4/04 ,  H04W72/04 ,  H04W52/12 ,  G06F9/54 ,  H04W48/06 ,  H04W48/18 ,  B60W50/10 ,  G06F3/01 ,  G06F3/16 ,  H04L12/26 ,  H04L29/06 ,  H04W12/08 ,  G06F21/45 ,  H04W12/06 ,  H04W28/02 ,  H04W40/20 ,  H04W48/02 ,  H04L29/08 ,  B60R16/023 ,  H04L12/721 ,  H04L29/12 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W40/02 ,  H04W28/06 ,  H04W84/00 ,  H04W36/08 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/34 ,  H04W84/12 ,  H04W92/18

CPC classification number: H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

Abstract: A system includes an on-board unit (OBU) in communication with an internal subsystem in a vehicle on at least one Ethernet network and a node on a wireless network. A method in one embodiment includes receiving a message on the Ethernet network in the vehicle, encapsulating the message to facilitate translation to Ethernet protocol if the message is not in Ethernet protocol, and transmitting the message in Ethernet protocol to its destination. Certain embodiments include optimizing data transmission over the wireless network using redundancy caches, dictionaries, object contexts databases, speech templates and protocol header templates, and cross layer optimization of data flow from a receiver to a sender over a TCP connection. Certain embodiments also include dynamically identifying and selecting an operating frequency with least interference for data transmission over the wireless network.

Abstract translation: 系统包括与至少一个以太网上的车辆中的内部子系统和无线网络上的节点通信的车载单元（OBU）。 在一个实施例中的方法包括在车辆上的以太网上接收消息，如果消息不在以太网协议中，封装该消息以便于转换到以太网协议，并将以太网协议中的消息发送到其目的地。 某些实施例包括使用冗余高速缓存，词典，对象上下文数据库，语音模板和协议头模板来优化无线网络上的数据传输，以及通过TCP连接从接收器到发送者的数据流的交叉层优化。 某些实施例还包括通过无线网络动态地识别和选择具有最小干扰的数据传输的工作频率。

公开(公告)号：US10243858B2

公开(公告)日：2019-03-26

申请号：US15869531

申请日：2018-01-12

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  G06F13/28 ,  H04L12/911 ,  H04L12/923 ,  H04L12/707

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US10200432B2

公开(公告)日：2019-02-05

申请号：US15275714

申请日：2016-09-26

Applicant: Cisco Technology, Inc.

Inventor： Xiaoqing Zhu ,  Zhi Li ,  Rong Pan ,  Joshua B. Gahm ,  Hao Hu

IPC: G06F15/16 ,  H04L29/06 ,  H04L12/811 ,  H04L12/825 ,  H04L12/835 ,  H04L29/08

Abstract: In one embodiment, an HTTP streaming session may be initiated at a client device in a network. The client device may have a buffer and may be configured to request and receive one or more data segments over HTTP from an HTTP server. A first data segment at a first data source rate may be requested and subsequently received. The first data segment may be stored in the buffer. A second data source rate may then be calculated based on a storage level in the buffer, and a second data segment at the second data source rate may be requested.