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公开(公告)号：US20180091603A1
公开(公告)日：2018-03-29
申请号：US15380598
申请日：2016-12-15
Applicant: Juniper Networks, Inc.
CPC classification number: H04L67/142 , H04L43/0864 , H04L43/10 , H04L43/50 , H04L67/10 , H04L67/42
Abstract: Techniques are described for performing session identifier (“SID”) based two-way active measurement protocol (TWAMP) data session provisioning between two endpoints in a computer network. According to the techniques, a SID assigned to each data session is used to uniquely identify the data session, instead of a source and destination address/port pairs. A TWAMP server may generate a unique number as a SID of a data session during negotiation of the data session. The disclosed techniques include extending TWAMP control messaging to include a communication mode for the SID-based TWAMP data session provisioning. The disclosed techniques further include extending TWAMP data messaging to include the SID of the data session in each test packet for the data session. In this way, a TWAMP session sender and a TWAMP session reflector may associate received test packets with a certain data session based on the SID included in the received test packets.
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公开(公告)号：US10021022B2
公开(公告)日：2018-07-10
申请号：US14822359
申请日：2015-08-10
Applicant: Juniper Networks, Inc.
IPC: H04L12/721 , H04L29/12
CPC classification number: H04L45/38 , H04L61/2514 , H04L61/2517 , H04L61/2557
Abstract: A method may include receiving a first network traffic flow that is associated with a first private network address. The first network traffic flow may be destined to a first external network address. The method may include determining that the first external network address is not identified by a data structure. The data structure may identify external network addresses and private network addresses of network traffic flows to which a single public network address has been assigned. The method may include assigning the single public network address to the first network traffic flow based on determining that the first external network address is not identified by the data structure. The method may include storing the first external network address and the first private network address. The method may include outputting the first network traffic flow with the first external network address and the single public network address.
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Patent Agency Ranking
公开(公告)号：US10298694B1
公开(公告)日：2019-05-21
申请号：US14321135
申请日：2014-07-01
Applicant: Juniper Networks, Inc.
Inventor： Kalyana Prakash Ravindranath Tagore
IPC: H04L29/08
Abstract: In general, techniques are described for performing flow timeout control within a network. A device comprising a processor may be configured to perform the techniques. The processor may be configured to, as one example, determine, from a first packet of a packet flow, a minimum timeout value for the packet flow indicative of a time duration during which a first computing device will not send a keep-alive message to prevent the packet flow from timing out. The processor may then determine an intermediate timeout value for the packet flow based on a comparison of the minimum timeout value to a maximum timeout value, and specify the intermediate timeout value in a second packet of the packet flow sent by the second network device to the first network device in response to the first packet.
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公开(公告)号：US09929965B1
公开(公告)日：2018-03-27
申请号：US15005740
申请日：2016-01-25
Applicant: Juniper Networks, Inc.
Inventor： Kalyana Prakash Ravindranath Tagore
IPC: H04L12/825
CPC classification number: H04L47/25 , H04L43/024 , H04L43/026 , H04L43/0894 , H04L47/11
Abstract: Techniques are described for providing traffic-aware sampling rate adjustment within network devices. As inbound packets are received at an interface, a sampling unit of a forwarding circuit of the network device samples the inbound packets at a current sampling rate and directs a subset of the inbound packets to a service card of the network device. A flow controller within the service card of the network device processes the subset of the inbound packets to generate flow records. When changes in the rate at which the inbound packets are received exceed a defined threshold, the flow controller adjusts the current sampling rate at which the forwarding circuit samples the inbound packets received at the interface. Moreover, the flow controller adaptively adjusts the sampling rate such that the flow sampling resources the device are being utilized in accordance with the utilization thresholds.
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公开(公告)号：US09246828B1
公开(公告)日：2016-01-26
申请号：US14308650
申请日：2014-06-18
Applicant: Juniper Networks, Inc.
Inventor： Kalyana Prakash Ravindranath Tagore
IPC: H04L12/825
CPC classification number: H04L47/25 , H04L43/024 , H04L43/026 , H04L43/0894 , H04L47/11
Abstract: Techniques are described for providing traffic-aware sampling rate adjustment within network devices. As inbound packets are received at an interface, a sampling unit of a forwarding circuit of the network device samples the inbound packets at a current sampling rate and directs a subset of the inbound packets to a service card of the network device. A flow controller within the service card of the network device processes the subset of the inbound packets to generate flow records. When changes in the rate at which the inbound packets are received exceed a defined threshold, the flow controller adjusts the current sampling rate at which the forwarding circuit samples the inbound packets received at the interface. Moreover, the flow controller adaptively adjusts the sampling rate such that the flow sampling resources the device are being utilized in accordance with the utilization thresholds.
Abstract translation: 描述了在网络设备内提供业务感知采样率调整的技术。 由于入接口在接口接收，所以网络设备的转发电路采样单元以当前采样率对入站报文进行采样，并将入局报文的子集引导到网络设备的业务卡。 网络设备的服务卡内的流量控制器处理入站数据包的子集以生成流记录。 当接收到的入站分组的速率变化超过定义的阈值时，流量控制器调整转发电路对在接口接收的入站分组进行采样的当前采样率。 此外，流量控制器自适应地调整采样率，使得根据利用阈值正在利用设备的流量采样资源。
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公开(公告)号：US10574763B2
公开(公告)日：2020-02-25
申请号：US15380598
申请日：2016-12-15
Applicant: Juniper Networks, Inc.
IPC: G06F15/173 , H04L29/08 , H04L12/26 , H04L29/06
Abstract: Techniques are described for performing session identifier (“SID”) based two-way active measurement protocol (TWAMP) data session provisioning between two endpoints in a computer network. According to the techniques, a SID assigned to each data session is used to uniquely identify the data session, instead of a source and destination address/port pairs. A TWAMP server may generate a unique number as a SID of a data session during negotiation of the data session. The disclosed techniques include extending TWAMP control messaging to include a communication mode for the SID-based TWAMP data session provisioning. The disclosed techniques further include extending TWAMP data messaging to include the SID of the data session in each test packet for the data session. In this way, a TWAMP session sender and a TWAMP session reflector may associate received test packets with a certain data session based on the SID included in the received test packets.
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公开(公告)号：US09614773B1
公开(公告)日：2017-04-04
申请号：US14210313
申请日：2014-03-13
Applicant: Juniper Networks, Inc.
Inventor： Kalyana Prakash Ravindranath Tagore
IPC: H04L12/851
CPC classification number: H04L47/2441
Abstract: A computer-implemented method for automatically correcting classification signatures may include (1) identifying at least one classification signature used to classify network traffic, (2) detecting at least one unknown flow of network traffic, (3) determining that the unknown flow of network traffic and the classification signature exceed a threshold level of similarity by comparing the unknown flow with the classification signature, and then in response to determining that the unknown flow and the classification signature exceed the threshold level of similarity, (4) identifying at least one attribute of the unknown flow that differs from the classification signature, and (5) modifying the classification signature based at least in part on the attribute of the unknown flow. Various other systems, methods, and computer-readable media are also disclosed.
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