公开(公告)号：US10172028B2

公开(公告)日：2019-01-01

申请号：US14742254

申请日：2015-06-17

Applicant: Citrix Systems, Inc.

Inventor： Praveen Raja Dhanabalan ,  Chaitra Maraliga Ramaiah

IPC: H04W28/02

Abstract: A system for optimizing network traffic is described. The system includes a primary appliance having a first handoff engine in an active state. The primary appliance is configured to receive from a first switch one of first data or a copy of first data to be provided to a second switch. The system also includes a secondary appliance having a second handoff engine in a passive state, where the secondary appliance is configured to receive from the first switch the other of the first data or the copy of the first data. The second handoff engine is configured to monitor state data provided by the first handoff engine, determine a condition of the first handoff engine using the state data and the other of the first data or the copy of first data, and based on the determination, provide instructions for the secondary appliance to provide the other of the first data or the copy of the first data to the second switch.

公开(公告)号：US09826066B2

公开(公告)日：2017-11-21

申请号：US14632729

申请日：2015-02-26

Applicant: Citrix Systems, Inc.

Inventor： Chaitra Maraliga Ramaiah ,  Praveen Raja Dhanabalan

IPC: H04L1/00 ,  H04L29/06

CPC classification number: H04L69/16

Abstract: A system for optimizing network traffic is described. The system includes a packet engine configured to acquire data regarding a flow of a plurality of data packets over a link and to determine transport communication protocol (TCP) characteristics for the flow, and a TCP flavor selector configured to dynamically select a TCP flavor based on the TCP characteristics, where the TCP flavor can be used to modify the flow of data packets over the link. The TCP characteristics dynamically change with time. The TCP flavor selector is further configured to modify the flow using the TCP flavor.

公开(公告)号：US20170070444A1

公开(公告)日：2017-03-09

申请号：US14846417

申请日：2015-09-04

Applicant: Citrix Systems, Inc.

Inventor： Praveen Raja Dhanabalan ,  Chaitra Maraliga Ramaiah

IPC: H04L12/863 ,  H04L12/851

CPC classification number: H04L47/6255 ,  H04L47/2441

Abstract: A system for optimizing network traffic is described. The system includes a quality of service (QoS) engine configured to acquire information regarding a plurality of data packets comprising a plurality of data packet flows operating over a plurality of links. The QoS engine can be further configured to determine a flow priority to the plurality of data packets flows, and to determine TCP characteristics for the plurality of data packet flows. The system further includes a TCP controller configured to acquire the flow priority to the plurality of data packets from the QoS engine. The TCP controller can be configured to obtain queue information associated with the plurality of data packets, and adjust a receive window size based on the flow priority and the queue information.

Abstract translation: 描述了一种用于优化网络流量的系统。 该系统包括被配置为获取关于包括在多个链路上操作的多个数据分组流的多个数据分组的信息的服务质量（QoS）引擎。 QoS引擎还可以被配置为确定多个数据分组流的流优先级，并且确定多个数据分组流的TCP特性。 该系统还包括TCP控制器，被配置为从QoS引擎获取对多个数据分组的流优先级。 TCP控制器可以被配置为获得与多个数据分组相关联的队列信息，并且基于流优先级和队列信息来调整接收窗口大小。

公开(公告)号：US20160373361A1

公开(公告)日：2016-12-22

申请号：US14742264

申请日：2015-06-17

Applicant: Citrix Systems, Inc.

Inventor： Praveen Raja Dhanabalan ,  Chaitra Maraliga Ramaiah

IPC: H04L12/851 ,  H04L12/875 ,  H04L12/801

CPC classification number: H04L47/24 ,  H04L47/11 ,  H04L47/25 ,  H04L47/27 ,  H04L47/283 ,  H04L47/30

Abstract: An appliance for optimizing network traffic is described. The appliance includes a transport layer controller configured to acquire link characteristics of a link, determine a congestion window for a flow of a plurality of data packets over the link, and determine transport layer characteristics for the flow. The appliance also includes a traffic priority controller configured to acquire a flow priority of the flow, determine whether congestion is or going to occur using the transport layer characteristics and the link characteristics, and increase the congestion window for the flow based on the congestion determination and on the flow priority having been indicated as being higher priority. The appliance further includes a quality of service engine configured to output the flow according to the congestion window.

Abstract translation: 描述用于优化网络流量的设备。 该设备包括被配置为获取链路的链路特性的传输层控制器，确定通过链路的多个数据分组的流的拥塞窗口，以及确定流的传输层特性。 该设备还包括流量优先级控制器，其被配置为获取流的流优先级，使用传输层特性和链路特性来确定拥塞是否发生，并且基于拥塞确定增加流的拥塞窗口，以及 流量优先级被指示为更高优先级。 该设备还包括配置成根据拥塞窗口输出流的服务质量引擎。

公开(公告)号：US10536875B2

公开(公告)日：2020-01-14

申请号：US16043392

申请日：2018-07-24

Applicant: CITRIX SYSTEMS, INC.

Inventor： Praveen Raja Dhanabalan ,  Chaitra Maraliga Ramaiah

IPC: H04W28/02

Abstract: A system for optimizing network traffic is described. The system includes a primary appliance having a first handoff engine in an active state. The primary appliance is configured to receive from a first switch one of first data or a copy of first data to be provided to a second switch. The system also includes a secondary appliance having a second handoff engine in a passive state, where the secondary appliance is configured to receive from the first switch the other of the first data or the copy of the first data. The second handoff engine is configured to monitor state data provided by the first handoff engine, determine a condition of the first handoff engine using the state data and the other of the first data or the copy of first data, and based on the determination, provide instructions for the secondary appliance to provide the other of the first data or the copy of the first data to the second switch.

公开(公告)号：US09929956B2

公开(公告)日：2018-03-27

申请号：US14632809

申请日：2015-02-26

Applicant: Citrix Systems, Inc.

Inventor： Chaitra Maraliga Ramaiah ,  Praveen Raja Dhanabalan

IPC: H04L12/26 ,  H04L12/801 ,  H04L29/06 ,  H04L12/911

CPC classification number: H04L47/12 ,  H04L43/0864 ,  H04L43/0894 ,  H04L47/18 ,  H04L47/193 ,  H04L47/826 ,  H04L69/16

Abstract: A system for optimizing network traffic is described. The system includes a transport communication protocol (TCP) controller configured to acquire data regarding a flow of a plurality of data packets over a link and to determine TCP characteristics for the flow, and a congestion window controller configured to determine an initial congestion window based on the TCP characteristics. The TCP controller is further configured to establish a second flow using the initial congestion window.

公开(公告)号：US20160373983A1

公开(公告)日：2016-12-22

申请号：US14742254

申请日：2015-06-17

Applicant: Citrix Systems, Inc.

Inventor： Praveen Raja Dhanabalan ,  Chaitra Maraliga Ramaiah

IPC: H04W36/18 ,  H04W36/00

CPC classification number: H04W28/0226

Abstract: A system for optimizing network traffic is described. The system includes a primary appliance having a first handoff engine in an active state. The primary appliance is configured to receive from a first switch one of first data or a copy of first data to be provided to a second switch. The system also includes a secondary appliance having a second handoff engine in a passive state, where the secondary appliance is configured to receive from the first switch the other of the first data or the copy of the first data. The second handoff engine is configured to monitor state data provided by the first handoff engine, determine a condition of the first handoff engine using the state data and the other of the first data or the copy of first data, and based on the determination, provide instructions for the secondary appliance to provide the other of the first data or the copy of the first data to the second switch.

Abstract translation: 描述了一种用于优化网络流量的系统。 该系统包括具有处于活动状态的第一切换引擎的主要装置。 主设备被配置为从第一交换机接收要提供给第二交换机的第一数据或第一数据的副本中的一个。 该系统还包括具有处于被动状态的第二切换引擎的辅助设备，其中辅助设备被配置为从第一交换机接收第一数据中的另一个或第一数据的副本。 第二切换引擎被配置为监视由第一越区切换引擎提供的状态数据，使用状态数据确定第一越区切换引擎的状态，以及第一数据或第一数据副本中的另一个，并且基于该确定，提供 辅助设备向第二交换机提供第一数据或第一数据的副本中的另一个的指令。

公开(公告)号：US20220070151A1

公开(公告)日：2022-03-03

申请号：US17501476

申请日：2021-10-14

Applicant: Citrix Systems, Inc.

Inventor： Abhishek Chauhan ,  Karthick Srivatsan ,  J Mohan Rao Arisankala ,  Chaitra Maraliga Ramaiah

IPC: H04L29/06 ,  H04L29/08 ,  G06F16/957 ,  H04L9/08

Abstract: Embodiments described include systems and methods for management and pre-establishment of network application and secure communication sessions. Session logs may be analyzed to identify an application or secure communication sessions likely to be accessed, and prior to receiving a request to establish the session, an intermediary (e.g. another device such as an intermediary appliance or other device, or an intermediary agent on a client such as a client application) may pre-establish the session, performing any necessary handshaking or credential or key exchange processes. When the session is subsequently requested (e.g. in response to a user request), the system may immediately begin using the pre-established session. This pre-establishment may be coordinated within the enterprise providing load balancing and scheduling of session establishment to prevent large processing loads at any one point in time.

公开(公告)号：US20210281551A1

公开(公告)日：2021-09-09

申请号：US17307634

申请日：2021-05-04

Applicant: Citrix Systems, Inc.

Inventor： J Mohan Rao Arisankala ,  Chaitra Maraliga Ramaiah ,  Karthick Srivatsan

IPC: H04L29/06 ,  H04L9/08 ,  H04L29/08

Abstract: Described embodiments provide systems and apparatuses for enhanced quality of service, steering and policy enforcement for https traffic via intelligent in-line path discovery of a TLS terminating node. The system may include a first network device having a secure connection traversing through the first network device, and in communication with a second network device. The first network device and the second network device may be intermediary to a client device and a server. The first network device may determine that the second network device terminates the secure connection. The first network device may receive key generation information of the secure connection from the second network device following determining the second network device terminates the secure connection. The first network device may decipher packet(s) of the secure connection destined for the device or the server using the received key generation information, to regulate network traffic of the secure connection at the first network device.

公开(公告)号：US20210281444A1

公开(公告)日：2021-09-09

申请号：US17323569

申请日：2021-05-18

Applicant: Citrix Systems, Inc.

Inventor： Karthick Srivatsan ,  Chaitra Maraliga Ramaiah ,  Anand Medikeri ,  Rajnesh Raturi ,  Moorthi Subramaniyan ,  Sandeep Manohar Nirikhi

IPC: H04L12/46 ,  H04L9/06 ,  H04L12/751 ,  H04L12/715 ,  H04L12/721 ,  H04L12/743

Abstract: Described embodiments provide systems and methods of forming overlay tunnels for delivery of data between networked devices. A first intermediary device may transmit, responsive to a connection request from a client, a request having a source IP address corresponding to a first virtual IP address of the first device and a first payload including first security hash information to be processed by a second intermediary device. The first device may receive, from the second intermediary device, a response. The response may have a source IP address corresponding to the IP address of the server and a second payload including a virtual IP address of the second device, responsive to second security hash information corresponding to the first security hash information. The first device may establish an overlay tunnel using the first virtual IP address and the second virtual IP address for communicating data between the client and the server.