Network flow stitching using middle box flow stitching

US10574575B2 · kind B2 · utility

Assignee

• Cisco Technology, Inc. · US

Inventors

• Supreeth Rao · Cupertino, US
• Navindra Yadav · San Jose, US
• Umamaheswaran Arumugam · San Jose, US
• Micheal Watts · Mill Valley, US
• Shashi Gandham · Fremont, US
• Prasannakumar Jobigenahally Malleshaiah · Sunnyvale, US
• Duy Nguyen · Fremont, US
• Hai Trong Vu · San Jose, US
• Tapan Shrikrishna Patwardhan · Mountain View, US
• Aiyesha Ma · San Francisco, US
• Xuan Zou · Shanghai, CN
• Jothi Prakash Prabakaran · Fremont, US

Key dates

• Filing date: Apr 30, 2018
• Grant date: Feb 25, 2020
• Expiry date: Aug 4, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L45/38
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Systems, methods, and computer-readable media for flow stitching network traffic flow segments at a middlebox in a network environment. In some embodiments, a method can include collecting flow records of traffic flow segments at a middlebox in a network environment including one or more transaction identifiers assigned to the traffic flow segments. The traffic flow segments can correspond to one or more traffic flows passing through the middlebox and flow directions of the traffic flow segments with respect to the middlebox can be identified using the flow records. The traffic flow segments can be stitched together based on the one or more transaction identifiers and the flow directions of the traffic flow segments to form a stitched traffic flow of the one or more traffic flows passing through the middlebox. The stitched traffic flow can be incorporated as part of network traffic data for the network environment.