公开(公告)号：US10021007B2

公开(公告)日：2018-07-10

申请号：US15259594

申请日：2016-09-08

Applicant: Cisco Technology, Inc.

Inventor： Thomas J. Edsall ,  Wei-Jen Huang ,  Chih-Tsung Huang ,  Kelvin Chan

IPC: H04L12/26 ,  H04L12/28 ,  G06F3/00

CPC classification number: H04L43/0858 ,  H04L43/028 ,  H04L43/062 ,  H04L43/106

Abstract: Presented herein are techniques to measure latency associated with packets that are processed within a network device. A packet is received at a component of a network device comprising one or more components. A timestamp representing a time of arrival of the packet at a first point in the network device is associated with the packet. The timestamp is generated with respect to a clock of the network device. A latency value for the packet is computed based on at least one of the timestamp and current time of arrival at a second point in the network device. One or more latency statistics are updated based on the latency value.