公开(公告)号：US20160212025A1

公开(公告)日：2016-07-21

申请号：US14705399

申请日：2015-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Walter Song ,  Derek L. Huckaby ,  Mitali Parthasarathy ,  Avni Baveja ,  Ashish Ashish Attarde

IPC: H04L12/26

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

Abstract: Embodiments of the present disclosure enable monitoring network traffic on multiple Virtual Device Context (VDC) elements of a switch using a single NAM module. To that end, if a monitored network element supports contexts (i.e. VDC elements), a NAM module could be configured to seamlessly drive the move of the data port interfaces (at the managed device) from one context to the other. After the move of the data ports that support SPAN destination traffic flow to the target VDC is complete, these SPAN destination ports may be configured to be able to receive SPAN data traffic.

Abstract translation: 本公开的实施例使得能够使用单个NAM模块监视交换机的多个虚拟设备上下文（VDC）元件上的网络业务。 为此，如果受监视的网络元件支持上下文（即VDC元素），则NAM模块可以被配置为无缝地驱动数据端口接口（在被管理设备处）从一个上下文到另一个上下文的移动。 将支持SPAN目标流量的数据端口移动到目标VDC之后，这些SPAN目标端口可能被配置为能够接收SPAN数据流量。

公开(公告)号：US10142200B2

公开(公告)日：2018-11-27

申请号：US14705399

申请日：2015-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Biju Mathews Mammen ,  Walter Song ,  Derek L. Huckaby ,  Mitali Parthasarathy ,  Avni Baveja ,  Ashish Ashish Attarde

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

Abstract: Embodiments of the present disclosure enable monitoring network traffic on multiple Virtual Device Context (VDC) elements of a switch using a single NAM module. To that end, if a monitored network element supports contexts (i.e. VDC elements), a NAM module could be configured to seamlessly drive the move of the data port interfaces (at the managed device) from one context to the other. After the move of the data ports that support SPAN destination traffic flow to the target VDC is complete, these SPAN destination ports may be configured to be able to receive SPAN data traffic.

公开(公告)号：US09344344B2

公开(公告)日：2016-05-17

申请号：US14164152

申请日：2014-01-25

Applicant: Cisco Technology, Inc.

Inventor： Christopher Jon Bucci ,  Walter Song ,  Chao Feng ,  Samar Sharma

IPC: H04L12/26 ,  H04L12/801 ,  H04L12/751

CPC classification number: H04L43/08 ,  H04L43/026 ,  H04L43/12 ,  H04L45/02 ,  H04L47/11

Abstract: A method for monitoring flow attributes at a network node comprises detecting first information indicative of transmission of a packet through the network node. The first information is discernible from information contained within the packet. The method also comprises determining that the packet is not part of an existing flow and generating, in a flow cache memory, a new flow entry corresponding to the packet. The method further comprises receiving second information associated with the transmission of the packet through the network node. The second information is contained in a forwarding information base (FIB) stored in the network node and cannot be discerned from information contained within the packet. The method also comprises writing, in the flow cache memory, at least a portion of the second information to the new flow entry corresponding to the packet.

Abstract translation: 一种用于监视网络节点处的流属性的方法包括检测指示通过所述网络节点传送分组的第一信息。 第一个信息可以从数据包中包含的信息中识别出来。 该方法还包括确定分组不是现有流的一部分，并且在流高速缓冲存储器中生成与分组对应的新流入口。 该方法还包括接收通过网络节点与分组的传输相关联的第二信息。 第二信息被包含在存储在网络节点中的转发信息库（FIB）中，并且不能从分组中包含的信息中辨别。 该方法还包括在流缓存存储器中将第二信息的至少一部分写入对应于分组的新流入口。

公开(公告)号：US20150215183A1

公开(公告)日：2015-07-30

申请号：US14164152

申请日：2014-01-25

Applicant: Cisco Technology, Inc.

Inventor： Christopher Jon Bucci ,  Walter Song ,  Chao Feng ,  Samar Sharma

IPC: H04L12/26 ,  H04L12/801

CPC classification number: H04L43/08 ,  H04L43/026 ,  H04L43/12 ,  H04L45/02 ,  H04L47/11

Abstract: A method for monitoring flow attributes at a network node comprises detecting first information indicative of transmission of a packet through the network node. The first information is discernible from information contained within the packet. The method also comprises determining that the packet is not part of an existing flow and generating, in a flow cache memory, a new flow entry corresponding to the packet. The method further comprises receiving second information associated with the transmission of the packet through the network node. The second information is contained in a forwarding information base (FIB) stored in the network node and cannot be discerned from information contained within the packet. The method also comprises writing, in the flow cache memory, at least a portion of the second information to the new flow entry corresponding to the packet.

Abstract translation: 一种用于监视网络节点处的流属性的方法包括检测指示通过所述网络节点传送分组的第一信息。 第一个信息可以从数据包中包含的信息中识别出来。 该方法还包括确定分组不是现有流的一部分，并且在流高速缓冲存储器中生成与分组对应的新流入口。 该方法还包括接收通过网络节点与分组的传输相关联的第二信息。 第二信息被包含在存储在网络节点中的转发信息库（FIB）中，并且不能从分组中包含的信息中辨别。 该方法还包括在流缓存存储器中将第二信息的至少一部分写入对应于分组的新流入口。