Patent · US Active

Transport mechanism for carrying in-band metadata for network path proof of transit

US10211987B2 · kind B2 · utility

1Cited by

1References

20Claims

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	Feb 19, 2019
Priority date	—
Expiry date	Feb 10, 2036

Classification

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

Abstract

A system and methods are provided herein for verifying proof of transit of traffic through a plurality of network nodes in a network. In one embodiment, a method is provided in which information is obtained about a packet at a network node in a network. The information includes in-band metadata. Verification information is read from the in-band metadata. The verification information for use in verifying a path of the packet in the network. Updated verification information is generated from the verification information read from the packet. The updated verification information is written to the in-band metadata of the packet, and the packet is forwarded from the network node in the network.

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