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:
Dec. 05, 2017
Filed:
Jul. 29, 2015
Cisco Technology, Inc., San Jose, CA (US);
Shyam Kapadia, San Jose, CA (US);
Lukas Krattiger, Pleasanton, CA (US);
Vrishab Sikand, Lexington, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a method for improving routing for a stretched subnet includes receiving a first communication on a border leaf of the stretched subnet, where the border leaf is a top of rack (ToR) switch configured to facilitate connectivity between an internal data center fabric and at least one external site associated with the stretched subnet, based on routing information received with the received communication, identifying a source address for the received communication as either from within the internal data center fabric or from the at least one external site, and if the source address is from the external site, storing an abbreviated route based on the source address in at least one hardware table, where the abbreviated route is a route to the at least one external site, and upon subsequent receipt of a second communication to be forwarded to the source address, forwarding the second communication in accordance with the abbreviated route.