公开(公告)号：US09893995B1

公开(公告)日：2018-02-13

申请号：US14596064

申请日：2015-01-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samar Sharma ,  Mitali Parthasarathy ,  Avni Baveja ,  Ashish Purushottam Attarde ,  Biju Mathews Mammen

IPC: H04L12/741 ,  H04L12/707 ,  H04L12/947 ,  H04L12/26 ,  H04L9/32 ,  H04L29/08 ,  H04L29/06

CPC classification number: H04L45/745 ,  H04L9/3215 ,  H04L43/10 ,  H04L45/24 ,  H04L49/25 ,  H04L67/10 ,  H04L67/145 ,  H04L69/14

Abstract: The present disclosure describes several key features of an agent deployable on a service appliance: agent architecture/design, transport and channel abstractions of the agent, new message definition components, channel switching (e.g., platform independent processing), Channel state machine, platform dependent hooks (e.g., memory, timers), Service key data store, and Secure channel infrastructure. Many of these features alleviate the vendor of the service appliance from having to provide the features. The features and standardization thereof enable the system to be more robust (and increases code quality). Speed of integration is decreased while the risk of integration issues is also decreased. Updates to the agent can be deployed in a controlled and efficient manner. Furthermore, the agent can ensure security between a switch and the agent. The agent deployed and running on vendor appliances provides a unique way to present transport channels that run between the switch, agent, and other service appliance components.

公开(公告)号：US20170118069A1

公开(公告)日：2017-04-27

申请号：US15185074

申请日：2016-06-17

Applicant: Cisco Technology, Inc.

Inventor： Samar Sharma ,  Avni Baveja ,  Ashish Purushottam Attarde

IPC: H04L12/24 ,  H04L12/26

CPC classification number: H04L41/0668 ,  H04L41/0681 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/10

Abstract: A method for setting up standby links on a link failure may be provided. The method comprises for a set of N link ports and M standby link ports, where N and M are integers and N is not equal to M, performing the following functions. Determining the status of a link from a first link port of the N ports. After the link from the first link port has failed, determining when a standby link port from the M standby link ports has been assigned to the first link port of the N ports. After the standby link port has been assigned, determining the health of the standby link port. After the standby link port has been assigned and is healthy, redirecting traffic from the first link port to the standby link port.

公开(公告)号：US10075337B2

公开(公告)日：2018-09-11

申请号：US14723210

申请日：2015-05-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Samar Sharma ,  Nikhil Dhar ,  Avni Baveja ,  Mitali Parthasarathy

IPC: G06F15/173 ,  H04L12/24 ,  G06F9/455

CPC classification number: H04L41/0816 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L41/0853 ,  H04L41/14

Abstract: A method is provided in one example embodiment and includes transmitting from an appliance connected to a first virtual device context (“VDC”) instantiated on a network device a request for statistics associated with selected ones of a plurality of VDCs implemented on the network device, wherein the plurality of VDCs includes the first VDC and wherein the appliance is connected to the first VDC via a management link; and receiving at the appliance the requested statistics associated with the plurality of VDCs. The method may further comprise receiving at the appliance a configuration message, wherein the configuration message identifies at least one of the selected ones of the plurality of VDCs for which statistics are to be provided, at least one type of statistic to be provided for the selected ones of the VDCs, and a polling interval at which statistics are to be collected from the selected VDCs.

公开(公告)号：US09794146B2

公开(公告)日：2017-10-17

申请号：US14705368

申请日：2015-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Samar Sharma ,  Nikhil Dhar ,  Avni Baveja ,  Mitali Parthasarathy ,  Ashish Purushottam Attarde

IPC: G06F15/16 ,  H04L12/26 ,  H04L12/24

CPC classification number: H04L43/08 ,  H04L41/04 ,  H04L41/0806 ,  H04L43/12

Abstract: In one embodiment, a method for enabling network appliance monitoring is disclosed. The method includes establishing a remote execution channel for executing commands on a network element such as e.g. a switch. The method also includes using the remote execution channel to initiate execution of one or more commands on the network element. The method further includes receiving at least part of an output resulting from the execution of the one or more commands, wherein the received at least part of the output enables performing the network appliance monitoring.

公开(公告)号：US20160218925A1

公开(公告)日：2016-07-28

申请号：US14723210

申请日：2015-05-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Samar Sharma ,  Nikhil Dhar ,  Avni Baveja ,  Mitali Parthasarathy

IPC: H04L12/24 ,  G06F9/455

CPC classification number: H04L41/0816 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L41/0853 ,  H04L41/14

Abstract: A method is provided in one example embodiment and includes transmitting from an appliance connected to a first virtual device context (“VDC”) instantiated on a network device a request for statistics associated with selected ones of a plurality of VDCs implemented on the network device, wherein the plurality of VDCs includes the first VDC and wherein the appliance is connected to the first VDC via a management link; and receiving at the appliance the requested statistics associated with the plurality of VDCs. The method may further comprise receiving at the appliance a configuration message, wherein the configuration message identifies at least one of the selected ones of the plurality of VDCs for which statistics are to be provided, at least one type of statistic to be provided for the selected ones of the VDCs, and a polling interval at which statistics are to be collected from the selected VDCs.

Abstract translation: 在一个示例性实施例中提供了一种方法，并且包括从连接到在网络设备上实例化的第一虚拟设备上下文（“VDC”）的设备发送与在网络设备上实现的多个VDC中选择的统计信息相关联的统计信息的请求， 其中所述多个VDC包括所述第一VDC，并且其中所述设备经由管理链路连接到所述第一VDC; 以及在所述设备处接收与所述多个VDC相关联的所请求的统计信息。 所述方法还可以包括在设备处接收配置消息，其中配置消息标识要为其提供统计的多个VDC中的所选择的VDC中的至少一个，为所选择的提供统计信息的至少一种类型的统计量 VDC中的一个以及从所选VDC收集统计信息的轮询间隔。

公开(公告)号：US20160212026A1

公开(公告)日：2016-07-21

申请号：US14705368

申请日：2015-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Samar Sharma ,  Nikhil Dhar ,  Avni Baveja ,  Mitali Parthasarathy ,  Ashish Purushottam Attarde

IPC: H04L12/26 ,  H04L12/24

CPC classification number: H04L43/08 ,  H04L41/04 ,  H04L41/0806 ,  H04L43/12

Abstract: In one embodiment, a method for enabling network appliance monitoring is disclosed. The method includes establishing a remote execution channel for executing commands on a network element such as e.g. a switch. The method also includes using the remote execution channel to initiate execution of one or more commands on the network element. The method further includes receiving at least part of an output resulting from the execution of the one or more commands, wherein the received at least part of the output enables performing the network appliance monitoring.

Abstract translation: 在一个实施例中，公开了一种用于启用网络设备监视的方法。 该方法包括：建立远程执行信道，用于执行网络元件上的命令，例如， 一个开关 该方法还包括使用远程执行信道来启动网元上的一个或多个命令的执行。 该方法还包括接收由执行一个或多个命令产生的输出的至少一部分，其中所接收的至少部分输出使得能够执行网络设备监视。

公开(公告)号：US11196671B2

公开(公告)日：2021-12-07

申请号：US15336524

申请日：2016-10-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Avni Baveja ,  Samar Sharma

IPC: H04L12/741 ,  H04L12/743 ,  H04W72/04 ,  H04L29/06 ,  H04L29/08 ,  H04L12/803 ,  H04L12/947

Abstract: In an example, there is disclosed a network switch or other computing apparatus comprising: an ingress interface; a plurality of egress interfaces; and one or more logic elements, including at least a content addressable memory (CAM), comprising a channel selection engine to provide persistent channel selection comprising: receive a packet on the ingress interface; inspect a layer 2 (L2) attribute of the packet; lookup the L2 attribute in the CAM; and assign the packet to an egress interface communicatively coupled to a network service.

公开(公告)号：US10230642B1

公开(公告)日：2019-03-12

申请号：US15067019

申请日：2016-03-10

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Avni Baveja ,  Mitali Parthasarathy ,  Samar Sharma ,  Mouli Vytla

IPC: H04L12/743 ,  H04L12/819 ,  H04L12/931 ,  H04L12/803

Abstract: In an example, there is disclosed a network apparatus for providing native load balancing within a switch, including: a first network interface operable to communicatively couple to a first network; a plurality of second network interfaces operable to communicatively couple to a second network; one or more logic elements comprising a switching engine operable for providing network switching; a content-addressable memory (CAM); and one or more logic elements providing a load balancing engine operable for: receiving incoming network traffic via the first network; selecting the incoming network traffic based at least in part on a selection factor, and load balancing selected traffic to a first egress interface based at least in part on a load balancing factor other than an IP address.

公开(公告)号：US09985894B1

公开(公告)日：2018-05-29

申请号：US14825062

申请日：2015-08-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Avni Baveja ,  Mitali Parthasarathy ,  Samar Sharma ,  Mouli Vytla

IPC: H04L12/803 ,  H04L12/813

CPC classification number: H04L47/125 ,  H04L47/20

Abstract: In an example, there is disclosed a computing apparatus for providing load-balanced switching, including a switching network; one or more logic elements operable for providing network switching or routing; and one or more logic elements providing a load balancing engine operable for: load balancing at least some incoming network traffic; receiving an exclude list identifying a network node excluded from load balancing; identifying a network packet directed to the network node excluded from load balancing; and directing the network packet to the network.

公开(公告)号：US20170118116A1

公开(公告)日：2017-04-27

申请号：US15336524

申请日：2016-10-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Avni Baveja ,  Samar Sharma

IPC: H04L12/741 ,  H04L29/08 ,  H04L12/947 ,  H04L29/06 ,  H04W72/04 ,  H04L29/12

CPC classification number: H04L45/745 ,  H04L45/7457 ,  H04L47/125 ,  H04L49/25 ,  H04L69/22 ,  H04L69/324 ,  H04W72/04

Abstract: In an example, there is disclosed a network switch or other computing apparatus comprising: an ingress interface; a plurality of egress interfaces; and one or more logic elements, including at least a content addressable memory (CAM), comprising a channel selection engine to provide persistent channel selection comprising: receive a packet on the ingress interface; inspect a layer 2 (L2) attribute of the packet; lookup the L2 attribute in the CAM; and assign the packet to an egress interface communicatively coupled to a network service.