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:
Mar. 19, 2019
Filed:
Jun. 10, 2015
Amazon Technologies, Inc., Seattle, WA (US);
Richard Michael Sears, Seattle, WA (US);
Andrew Gary Hourselt, Seattle, WA (US);
Douglas Stewart Laurence, Mercer Island, WA (US);
Neha Shetty, Seattle, WA (US);
James Christopher Sorenson, III, Seattle, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Methods and apparatus for handling failure of servers in traffic forwarding (TF) systems between networks. A TF system may include units each including multiple servers. Outbound and inbound traffic for a local network may be distributed among the units according to a routing technique, with each unit responsible for an allocated portion of the traffic. Servers in a unit may participate in a health check protocol to detect servers that are not healthy. If the healthy servers in a unit drops below a threshold at which the unit cannot reliably handle its allocated portion of the traffic, the servers may automatically take the unit out of service, for example by stopping advertisement of routes, and the traffic may be reallocated across the remaining units. This may help prevent congestion-related delays, high latency, packet losses, and other problems on connections through the unhealthy unit.