Patent · US Active

Network path proof of transit using in-band metadata

US10237068B2 · kind B2 · utility

3Cited by

1References

24Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Venkata Krishna Sashank Dara · Savanuru, IN
Shwetha Subray Bhandari · Bengaluru, IN
Andrew Yourtchenko · Blegny, BE
Eric Vyncke · Blegny, BE
Frank Brockners · Cologne, DE

Key dates

Filing date	Jan 11, 2016
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Jan 11, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2101/659
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.