The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Jan. 20, 2017
Hewlett Packard Enterprise Development Lp, Houston, TX (US);
Hamza Attak, Bristol, GB;
Ludovic Emmanuel Paul Noel Jacquin, Bristol, GB;
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP, Houston, TX (US);
Abstract
Examples relate to packet tagging in Software Defined Networks (SDN). In an example, at least one SDN switch of an SDN marks a packet passing through the SDN switch with a packet tag, wherein the packet tag comprises an identifier of the SDN switch and a digest of a set of network forwarding rules of the SDN switch. Some examples generate, by a verifier, a verifier tag comprising the identifier of the at least one SDN switch and the digest of the set of network forwarding rules of the at least one SDN switch obtained from a network rules table and a network topology table stored in the verifier. Some examples receive, at a particular network element and from a verifier of the SDN, a request for attestation of the packet. Some examples check, by a verification engine, the packet tag against the verifier tag.