公开(公告)号：US20180077021A1

公开(公告)日：2018-03-15

申请号：US15695302

申请日：2017-09-05

Applicant: Apple Inc.

Inventor： Koussalya Balasubramanian ,  Robert B. Boatright ,  Kevin J. White

IPC: H04L12/24

CPC classification number: H04L41/0836 ,  H04L41/0813 ,  H04L41/0833 ,  H04L41/32 ,  H04L49/25 ,  H04L49/30

Abstract: A network switch having a plurality of ports may be configured with a plurality of wake domains, which may be independently transitioned between at least a wake state and a sleep state. For example, one or more wake domains may transition between a wake state and a sleep state while one or more other wake domains do not change state. The ports included in each of the wake domains may be dynamically configurable. In this way, power may be conserved by operating a subset of the plurality of ports in the wake state, while other ports remain in the sleep state. In some embodiments, the wake domains may be prioritized, such that, upon a simultaneous command, a higher-priority wake domain may be awakened before a lower-priority wake domain. In this way, high-priority ports may be awakened in less time than would be required to awaken the entire network switch.