Invention Grant
- Patent Title: Network path proof of transit using in-band metadata
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Application No.: US14992109Application Date: 2016-01-11
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Publication No.: US10237068B2Publication Date: 2019-03-19
- Inventor: Venkata Krishna Sashank Dara , Shwetha Subray Bhandari , Andrew Yourtchenko , Eric Vyncke , Frank Brockners
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Edell, Shapiro & Finnan, LLC
- Priority: IN1682/MUM/2015 20150427
- Main IPC: H04L12/721
- IPC: H04L12/721 ; H04L9/32 ; H04L29/06 ; H04L29/12 ; H04L12/46 ; H04L12/24

Abstract:
A system and methods are provided for verifying proof of transit of network traffic through a plurality of network nodes in a network. Information is obtained about a packet at a network node in a network. The information may include in-band metadata of the packet. Verification information is read from in-band metadata of the packet. Updated verification information is generated from the verification information read from the packet and based on configuration information associated with the network node. The updated verification information is written back to the in-band metadata in the packet. The packet is forwarded from the network node in the network.
Public/Granted literature
- US20160315850A1 NETWORK PATH PROOF OF TRANSIT USING IN-BAND METADATA Public/Granted day:2016-10-27
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