公开(公告)号：US20200341931A1

公开(公告)日：2020-10-29

申请号：US16393425

申请日：2019-04-24

Applicant: Google LLC

Inventor： Pankaj Makhija ,  Nishant Patil

IPC: G06F13/42 ,  H04L12/937 ,  H04L12/931

Abstract: Methods and systems for facilitating an equitable bandwidth distribution across downstream devices in asymmetrical switch topologies, and in particular asymmetrical PCIe switch topologies. The equitable distribution of bandwidth is achieved in asymmetrical topologies using virtual switch partitioning. An upstream switch that is connected to the root complex via an upstream port and that receives bandwidth B from the upstream port, is virtualized into two or more virtual switches. Each virtual switch equally shares the bandwidth. Each virtual switch is allocated to downstream devices that are connected to the upstream switch as well as to one or more downstream switches that are connected to the upstream switch. Each downstream switch may be connected to one or more additional downstream devices.

公开(公告)号：US11537548B2

公开(公告)日：2022-12-27

申请号：US16393425

申请日：2019-04-24

Applicant: Google LLC

Inventor： Pankaj Makhija ,  Nishant Patil

IPC: G06F13/42 ,  H04L49/253 ,  H04L49/00

Abstract: Methods and systems for facilitating an equitable bandwidth distribution across downstream devices in asymmetrical switch topologies, and in particular asymmetrical PCIe switch topologies. The equitable distribution of bandwidth is achieved in asymmetrical topologies using virtual switch partitioning. An upstream switch that is connected to the root complex via an upstream port and that receives bandwidth B from the upstream port, is virtualized into two or more virtual switches. Each virtual switch equally shares the bandwidth. Each virtual switch is allocated to downstream devices that are connected to the upstream switch as well as to one or more downstream switches that are connected to the upstream switch. Each downstream switch may be connected to one or more additional downstream devices.

公开(公告)号：US11841817B2

公开(公告)日：2023-12-12

申请号：US18071773

申请日：2022-11-30

Applicant: Google LLC

Inventor： Pankaj Makhija ,  Nishant Patil

IPC: G06F13/42 ,  H04L49/253 ,  H04L49/00

CPC classification number: G06F13/4226 ,  H04L49/253 ,  H04L49/70 ,  G06F2213/0026

Abstract: Methods and systems for facilitating an equitable bandwidth distribution across downstream devices in asymmetrical switch topologies, and in particular asymmetrical PCIe switch topologies. The equitable distribution of bandwidth is achieved in asymmetrical topologies using virtual switch partitioning. An upstream switch that is connected to the root complex via an upstream port and that receives bandwidth B from the upstream port, is virtualized into two or more virtual switches. Each virtual switch equally shares the bandwidth. Each virtual switch is allocated to downstream devices that are connected to the upstream switch as well as to one or more downstream switches that are connected to the upstream switch. Each downstream switch may be connected to one or more additional downstream devices.

公开(公告)号：US20230088346A1

公开(公告)日：2023-03-23

申请号：US18071773

申请日：2022-11-30

Applicant: Google LLC

Inventor： Pankaj Makhija ,  Nishant Patil

IPC: G06F13/42 ,  H04L49/253 ,  H04L49/00

Abstract: Methods and systems for facilitating an equitable bandwidth distribution across downstream devices in asymmetrical switch topologies, and in particular asymmetrical PCIe switch topologies. The equitable distribution of bandwidth is achieved in asymmetrical topologies using virtual switch partitioning. An upstream switch that is connected to the root complex via an upstream port and that receives bandwidth B from the upstream port, is virtualized into two or more virtual switches. Each virtual switch equally shares the bandwidth. Each virtual switch is allocated to downstream devices that are connected to the upstream switch as well as to one or more downstream switches that are connected to the upstream switch. Each downstream switch may be connected to one or more additional downstream devices.