公开(公告)号：US12009968B1

公开(公告)日：2024-06-11

申请号：US17643813

申请日：2021-12-10

Applicant: Amazon Technologies, Inc.

Inventor： Samir Abed ,  Abhineet Bansal ,  Donavan Miller ,  Oren Nachman ,  Tsz Him Chiu

IPC: H04L41/0686 ,  H04L41/0668 ,  H04L43/0805 ,  H04L61/4511 ,  H04L67/51 ,  H04L67/60

CPC classification number: H04L41/0686 ,  H04L41/0668 ,  H04L43/0805 ,  H04L61/4511 ,  H04L67/51 ,  H04L67/60

Abstract: The present disclosure generally relates to a failover management service that can continuously monitor attributes of regional network resources to characterize resource availability per region. The failover management service associates the regional resource availability information with a set of hash values in which each individual hash value is representative a concatenation of a resource identifier and a client identifier associated with one or more individual clients. For individual hash values, the failover management service associates failover information, which is propagated to a DNS service. If a network-resource becomes unavailable, clients can transmit DNS queries including a hash value that discovers the appropriate failover information for the specific network-based resource and client device.