公开(公告)号：US11171866B2

公开(公告)日：2021-11-09

申请号：US16730835

申请日：2019-12-30

Applicant: Juniper Networks, Inc.

Inventor： Vasanthi N Kini ,  Manikandan Musuvathi Poornachary

IPC: H04L12/717 ,  H04L12/26 ,  H04L12/721 ,  H04L12/741

Abstract: The disclosure sets forth techniques, devices, systems, and methods for measuring a packet residency time in a network device. In some aspects, a network flow measurement protocol includes data fields in flow data records exported to a traffic collector, including a packet ingress time and a packet egress time. The data fields allow the calculation of the packet residency time within a network device, as well as the time required for the packet to traverse between two network devices in the network. A filter can be installed on one or more network devices in a network. For packets that match the filter criteria, the network device records the times of packet arrival and packet departure, and, in some aspects, a packet residency time of the packet with the network device. The network device exports the flow data record pertaining to this packet to a traffic flow data collector.