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. 23, 2025
Filed:
Nov. 06, 2023
Amazon Technologies, Inc., Seattle, WA (US);
David Alonso Flamini, Dublin, IE;
Patricio Giecco, Upland, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A computer-networking system is described to leverage traffic splits naturally occurring in Clos fabrics along the path to a top tier of the fabric. Using the traffic splits, a result similar to or the same as WECMP can be implemented but using less network-device overhead. The system introduces another level of indirection abstracting sets of outgoing next hops across tier 1 devices in the fabric and leveraging ECMP or WECMP to manage the capacity. Incoming traffic flows are split as they get forwarded across the fabric due to the fabric's topology, routing design, and/or the pattern of external connections. These traffic splits are leveraged in creating forwarding tables for the network devices, thereby making the scaling model for WECMP a function of the outgoing external connections of the fabric rather than the number of traffic flow destinations in the network domain.