公开(公告)号：US20240056373A1

公开(公告)日：2024-02-15

申请号：US18099104

申请日：2023-01-19

Applicant: Cisco Technology, Inc.

Inventor： Jianda Liu ,  Xiao-Rong Wang ,  Hongbo Xia ,  Jiayi You ,  Yu Zhang

IPC: H04L43/10 ,  H04L43/0876

CPC classification number: H04L43/10 ,  H04L43/0876

Abstract: Techniques and architecture are described for tracking flows of packets in a network using a packet color marking scheme for obtaining network end-to-end traffic flow metrics in the network. In particular, in configurations, a user may be prompted to specify a site and a virtual private network (VPN) at which to start a trace for packet flows using a coloring marking scheme within the network. Given the VPN and the site, it is possible to monitor interested packet flows and apply metadata, e.g., colors, on flow packets. Remote wide area network (e.g., software defined WAN (SD-WAN)) routers receiving the packets with metadata may automatically trace the same flow and apply the same metadata to a next hop router. Hence, an end-to-end network path may be discovered.

公开(公告)号：US11516104B2

公开(公告)日：2022-11-29

申请号：US16988920

申请日：2020-08-10

Applicant: Cisco Technology, Inc.

Inventor： Jianda Liu ,  Xiaorong Wang ,  Shen Yong Qing ,  Olivier Patrick Jean Pelerin ,  Frederic René Philippe Detienne ,  Pritam Baruah ,  Ruchir Jain

IPC: H04L12/26 ,  H04L43/10 ,  H04L43/062

Abstract: In one embodiment, a method includes receiving, by a network orchestrator, trace parameters from a user device. The method also includes determining, by the network orchestrator, to initiate a network path trace for the application, generating, by the network orchestrator, a filter policy for the network path trace using the trace parameters, and allocating, by the network orchestrator, a trace identification to the network path trace. The method also includes initiating, by the network orchestrator, the network path trace within a network by communicating the filter policy and the trace identification to a first node of the network and receiving, by the network orchestrator, network path trace data from a plurality of nodes of the network. The method further includes generating, by the network orchestrator, a trace report for the application using the network path trace data.