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:
Aug. 24, 2021
Filed:
Mar. 10, 2017
Nec Laboratories Europe Gmbh, Heidelberg, DE;
Alessio Silvestro, Heidelberg, DE;
Fabian Schneider, Heidelberg-Bahnstadt, DE;
Roberto Bifulco, Heidelberg, DE;
NEC CORPORATION, Tokyo, JP;
Abstract
A method for service function chaining within an end-to-end path of a network connection between a source and destination node includes: executing, for a defined service function chain including an ordered sequence of network service functions, an address resolution process that translates names of the network service functions of the defined service function chain into their corresponding IP addresses. The address resolution process is performed at a name server of the destination node by a sequence of name server queries sent in succession to respective name servers of each of the selected network service functions of the defined service function chain in accordance with their order. Each of the name server queries is answered by a response from a name server of the respective network service function that includes IP addresses of selected instances of a respective network service function chosen by the respective name server according to predefined criteria.