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. 02, 2025
Filed:
Sep. 27, 2023
Amazon Technologies, Inc., Seattle, WA (US);
Mark Kamichoff, Ashburn, VA (US);
Chinchu Merine Joseph, Cupertino, CA (US);
Tahsin Erdogan, Kirkland, WA (US);
Ke Zhang, San Jose, CA (US);
James Paul Rivers, Capitola, CA (US);
Shrawan Chittoor Surender, Pleasanton, CA (US);
Shriram Srinivasan, Cupertino, CA (US);
Colin Whittaker, Dublin, IE;
Yuan Yuan, San Jose, CA (US);
Abhishek Vinayak Naik, Campbell, CA (US);
Leonid Livak, San Jose, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A host-to-ToR switch advertisement protocol can be used at a data center network edge to receive IP advertisements from hosts and convey ToR switch availability status (e.g., in service, intentionally out of service, or unintentionally out of service) back to hosts and vice versa. The host server computers can have the ability to advertise an arbitrary number of IPv4 or IPv6 prefixes to the network through the ToR switches. A single host server computer can leverage multiple instances across multiple ports to the same switch or different switches to implement load balancing (e.g., equal cost multipath (ECMP)) and fault tolerance. The host server computers benefit from an increased availability by receiving network traffic via multiple ToR switches, a single ToR switch with multiple links, or a combination of both.