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:
Sep. 24, 2019
Filed:
Nov. 10, 2016
Applicant:
Argela Yazilim VE Bilisim Teknolojileri San. VE Tic. A.s., Istanbul, TR;
Inventors:
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/721 (2013.01); H04L 12/935 (2013.01); H04L 12/741 (2013.01); H04L 12/715 (2013.01); H04L 12/717 (2013.01);
U.S. Cl.
CPC ...
H04L 45/38 (2013.01); H04L 45/42 (2013.01); H04L 45/64 (2013.01); H04L 45/745 (2013.01); H04L 49/3009 (2013.01);
Abstract
An ingress forwarder receives the IP packet and strips off the entire packet header and replaces it with the simple flow header assigned by the controller, and looks up its flow-table to determine from which port to forward the packet. All other forwarders along the path up to the egress forwarder perform the forwarding action simply by inspecting the flow header. The egress forwarder, before forwarding to the egress port, replaces the flow header with the original layer-2/3/4 header. Doing so, the host behavior remains unchanged while the routing/forwarding within the cloud of SDN is performed based on only the flow header.