公开(公告)号：US12206513B2

公开(公告)日：2025-01-21

申请号：US18324551

申请日：2023-05-26

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Murari Bhattacharyya ,  Nitin Duggal

IPC: H04L12/10 ,  G06F1/26

Abstract: A Power-over-Ethernet (POE) powered device (PD) may be coupled to two power sourcing equipments (PSEs), a PSE and an additional PSE. The PSE may exchange a transport layer protocol communications with the additional PSE. The communications comprising a first communication from the PSE to the additional PSE indicative of a PoE configuration of the PSE and a second communication from the additional PSE to the PSE indicative of a PoE configuration of the additional PSE. The PSE may create a power availability table based on the communications. The PSE may detect occurrence of an event comprising at least one of a change in the power availability table or a change in ability of the PSE to provide power to the PD. On occurrence of the event, the PSE may send additional communications to the additional PSE, requesting to adjust its power allotment for the PD.

公开(公告)号：US20240118734A1

公开(公告)日：2024-04-11

申请号：US18151874

申请日：2023-01-09

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Murari Bhattacharyya ,  Nitin Duggal

IPC: G06F1/26 ,  H02J9/00

CPC classification number: G06F1/263 ,  H02J9/00

Abstract: Power-over-Ethernet (PoE) powered devices (PD) may be coupled to a PoE power sourcing equipment (PSE). The PDs may send to the PSE a link-layer protocol communication that comprises an alternative-power field indicating whether the sending PD has an alternative power source (e.g., a battery, a local power supply). The PSE may listen for and receive the communications and read the alternative-power fields thereof. The PSE may set respective power priorities for the PDs based at least in part on whether the PDs have respective alternative power sources, as indicated by the respective alternative-power fields of their communications. The PSE may reduce the power priority of those PDs that have alternative power sources, relative to the priority the PD would otherwise have been given.

公开(公告)号：US12124305B2

公开(公告)日：2024-10-22

申请号：US18151874

申请日：2023-01-09

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Murari Bhattacharyya ,  Nitin Duggal

IPC: G06F11/30 ,  G06F1/26 ,  H02J9/00 ,  G06F1/30

CPC classification number: G06F1/263 ,  H02J9/00 ,  G06F1/30

Abstract: Power-over-Ethernet (PoE) powered devices (PD) may be coupled to a PoE power sourcing equipment (PSE). The PDs may send to the PSE a link-layer protocol communication that comprises an alternative-power field indicating whether the sending PD has an alternative power source (e.g., a battery, a local power supply). The PSE may listen for and receive the communications and read the alternative-power fields thereof. The PSE may set respective power priorities for the PDs based at least in part on whether the PDs have respective alternative power sources, as indicated by the respective alternative-power fields of their communications. The PSE may reduce the power priority of those PDs that have alternative power sources, relative to the priority the PD would otherwise have been given.

公开(公告)号：US20240195643A1

公开(公告)日：2024-06-13

申请号：US18324551

申请日：2023-05-26

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Murari Bhattacharyya ,  Nitin Duggal

IPC: H04L12/10 ,  H04L41/0803

CPC classification number: H04L12/10 ,  H04L41/0803

Abstract: A Power-over-Ethernet (POE) powered device (PD) may be coupled to two power sourcing equipments (PSEs), a PSE and an additional PSE. The PSE may exchange a transport layer protocol communications with the additional PSE. The communications comprising a first communication from the PSE to the additional PSE indicative of a PoE configuration of the PSE and a second communication from the additional PSE to the PSE indicative of a PoE configuration of the additional PSE. The PSE may create a power availability table based on the communications. The PSE may detect occurrence of an event comprising at least one of a change in the power availability table or a change in ability of the PSE to provide power to the PD. On occurrence of the event, the PSE may send additional communications to the additional PSE, requesting to adjust its power allotment for the PD.