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:
Feb. 12, 2019
Filed:
Oct. 26, 2017
International Business Machines Corporation, Armonk, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention discloses an overlay switch (OSW) and a method used by the same. A received unicast packet needs to pass a waypoint chain including a number of waypoints. A network address of a first waypoint of the waypoint chain and an underlay network address of a second OSW connected to the first waypoint are obtained. In response to a determination that the second OSW is not the first OSW the unicast packet is encapsulated into a first underlay network packet according to a specification of an overlay network. A field of a destination header of the first underlay network packet includes the underlay network address of the second OSW. A source port field of a user datagram protocol (UDP) header is set to indicate a waypoint index included in a corresponding waypoint chain. The first underlay network packet is sent to the second OSW.