公开(公告)号：US10999173B2

公开(公告)日：2021-05-04

申请号：US16390695

申请日：2019-04-22

Applicant: Cisco Technology, Inc.

Inventor： David John Zacks ,  Vikram Vikas Pendharkar ,  Peter Geoffrey Jones ,  Thomas Szigeti ,  Praveen T. Chandra

IPC: H04L12/26 ,  H04L12/801 ,  H01L29/06 ,  H04L29/06

Abstract: Systems, methods, and computer-readable media for monitoring traffic in a network include receiving, at an analytics platform connected to the network, one or more encapsulated packet headers from one or more network nodes of the network. From the one or more encapsulated packet headers, at least one or more source addresses of the one or more network nodes which transmitted the encapsulated packet headers, and one or more timestamps at which the one or more encapsulated packet headers were transmitted from the one or more network nodes may be determined. From at least the one or more source addresses and timestamps, network traffic information such as one or more of latency or jitter of data packets transiting through the one or more network nodes may be determined, wherein the one or more encapsulated packet headers may correspond to the data packets transiting through the one or more network nodes.

公开(公告)号：US10911341B2

公开(公告)日：2021-02-02

申请号：US16547002

申请日：2019-08-21

Applicant: Cisco Technology, Inc.

Inventor： David John Zacks ,  Vikram Vikas Pendharkar ,  Shawn Michael Wargo ,  Thomas Szigeti

IPC: G06F15/16 ,  H04L12/26 ,  H04L12/721

Abstract: Systems and methods provide for monitoring a state of a network fabric utilizing user traffic. A fabric node (e.g., switch, router, or other network device) can receive user traffic from a node (e.g., network device, network appliance, or endpoint). The fabric node can match the user traffic to a tuple stored in a hardware counter matrix of the fabric node, the tuple corresponding to a count in the hardware counter matrix. The fabric node can increment the count. The fabric node can transmit an active probe to the node in response to the count not incrementing within a first time. The fabric node can transmit to a network management system data indicative of a disconnection between the fabric node and the node in response to the fabric node not receiving a response to the active probe within a second time.

公开(公告)号：US20200162355A1

公开(公告)日：2020-05-21

申请号：US16547002

申请日：2019-08-21

Applicant: Cisco Technology, Inc.

Inventor： David John Zacks ,  Vikram Vikas Pendharkar ,  Shawn Michael Wargo ,  Thomas Szigeti

IPC: H04L12/26 ,  H04L12/721

Abstract: Systems and methods provide for monitoring a state of a network fabric utilizing user traffic. A fabric node (e.g., switch, router, or other network device) can receive user traffic from a node (e.g., network device, network appliance, or endpoint). The fabric node can match the user traffic to a tuple stored in a hardware counter matrix of the fabric node, the tuple corresponding to a count in the hardware counter matrix. The fabric node can increment the count. The fabric node can transmit an active probe to the node in response to the count not incrementing within a first time. The fabric node can transmit to a network management system data indicative of a disconnection between the fabric node and the node in response to the fabric node not receiving a response to the active probe within a second time.