公开(公告)号：US20250055798A1

公开(公告)日：2025-02-13

申请号：US18932311

申请日：2024-10-30

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Feroz Zahid ,  Ernst Gunnar Gran ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L47/125 ,  G06F9/50 ,  G06F16/954 ,  H04L45/00 ,  H04L45/302 ,  H04L49/00 ,  H04L49/356 ,  H04L49/50 ,  H04L67/1004

Abstract: A system and method for supporting load balancing in a multi-tenant cluster environment, in accordance with an embodiment. One or more tenants can be supported and each associated with a partition, which are each in turn associated with one or more end nodes. The method can provide a plurality of switches, the plurality of switches comprising a plurality of leaf switches and at least one switch at another level, wherein each of the plurality of switches comprise at least one port. The method can assign each node a weight parameter, and based upon this parameter, the method can route the plurality of end nodes within the multi-tenant cluster environment, wherein the routing attempts to preserve partition isolation.

公开(公告)号：US12052184B2

公开(公告)日：2024-07-30

申请号：US18214763

申请日：2023-06-27

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Feroz Zahid ,  Ernst Gunnar Gran ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L49/25 ,  H04L45/48 ,  H04L47/125 ,  H04L67/1001

CPC classification number: H04L49/25 ,  H04L45/48 ,  H04L47/125 ,  H04L67/1001

Abstract: Methods and systems for supporting efficient load balancing among a plurality of switches and a plurality of end nodes arranged in a tree topology in a network environment. The methods and systems can sort the plurality of end nodes, wherein the plurality of end nodes are sorted in a decreasing order of a receive weight. The method and system may further route, in the decreasing order of receive weights, the plurality of end nodes, wherein the routing comprises selecting at least one down-going port and at least one up-going port. Further, the method and system can increase an accumulated downward weight on each selected down-going port by the receive weight of the routed end node, and increase an accumulated upward weight on each selected up-going port by the receive weight of the routed end node.

公开(公告)号：US20240214261A1

公开(公告)日：2024-06-27

申请号：US18589764

申请日：2024-02-28

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Feroz Zahid ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen ,  Ernst Gunnar Gran

IPC: H04L41/0659 ,  H04L41/044 ,  H04L41/12 ,  H04L45/02 ,  H04L45/24 ,  H04L45/28

CPC classification number: H04L41/0661 ,  H04L41/044 ,  H04L41/12 ,  H04L45/02 ,  H04L45/24 ,  H04L45/28

Abstract: Systems and methods are provided for supporting efficient reconfiguration of an interconnection network having a pre-existing routing. An exemplary method can provide a plurality of switches, a plurality of end nodes, and one or more subnet managers, including a master subnet manager. The method can calculate, via the master subnet manager, a first set of one or more leaf-switch to leaf-switch multipaths. The method can store this first set of one or more leaf-switch to leaf-switch multipaths at a metabase. The method can detect a reconfiguration triggering event, and call a new routing for the interconnection network. Finally, the method can reconfigure the network according to the new routing for the interconnection network.

公开(公告)号：US20230353507A1

公开(公告)日：2023-11-02

申请号：US18214763

申请日：2023-06-27

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Feroz Zahid ,  Ernst Gunnar Gran ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L49/25 ,  H04L47/125 ,  H04L67/1001 ,  H04L45/48

CPC classification number: H04L49/25 ,  H04L47/125 ,  H04L67/1001 ,  H04L45/48

Abstract: Methods and systems for supporting efficient load balancing among a plurality of switches and a plurality of end nodes arranged in a tree topology in a network environment. The methods and systems can sort the plurality of end nodes, wherein the plurality of end nodes are sorted in a decreasing order of a receive weight. The method and system may further route, in the decreasing order of receive weights, the plurality of end nodes, wherein the routing comprises selecting at least one down-going port and at least one up-going port. Further, the method and system can increase an accumulated downward weight on each selected down-going port by the receive weight of the routed end node, and increase an accumulated upward weight on each selected up-going port by the receive weight of the routed end node.

公开(公告)号：US11750513B2

公开(公告)日：2023-09-05

申请号：US17387142

申请日：2021-07-28

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bartosz Bogdanski ,  Bjørn Dag Johnsen ,  Line Holen

IPC: H04L49/00 ,  H04L45/64 ,  H04L41/0806

CPC classification number: H04L45/64 ,  H04L41/0806 ,  H04L49/70

Abstract: Systems and methods are provided for supporting scalable multi-homed routing for virtual switch based host channel adapter (HCA) virtualization in a subnet. An exemplary method can provide one or more switches, a plurality of host channel adapters, a plurality of hypervisors, and a plurality of virtual machines. The method can arrange the plurality of host channel adapters with one or more of a virtual switch with prepopulated local identifiers (LIDs) architecture or a virtual switch with dynamic LID assignment architecture. The method can further perform a multi-homed routing for the subnet, wherein at least one of the plurality of host channel adapters comprises two virtual switches, wherein the two virtual switches are treated as endpoints of the subnet, and wherein the multi-homed routing for the subnet ensures that each the two virtual switches are routed through independent paths.

公开(公告)号：US11411890B2

公开(公告)日：2022-08-09

申请号：US17486627

申请日：2021-09-27

Applicant: Oracle International Corporation

Inventor： Feroz Zahid ,  Ernst Gunnar Gran ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L49/25 ,  H04L47/125 ,  H04L45/48 ,  H04L67/1001

Abstract: Methods and systems for supporting efficient load balancing among a plurality of switches and a plurality of end nodes arranged in a tree topology in a network environment. The methods and systems can sort the plurality of end nodes, wherein the plurality of end nodes are sorted in a decreasing order of a receive weight. The method and system may further route, in the decreasing order of receive weights, the plurality of end nodes, wherein the routing comprises selecting at least one down-going port and at least one up-going port. Further, the method and system can increase an accumulated downward weight on each selected down-going port by the receive weight of the routed end node, and increase an accumulated upward weight on each selected up-going port by the receive weight of the routed end node.

公开(公告)号：US20220086017A1

公开(公告)日：2022-03-17

申请号：US17531607

申请日：2021-11-19

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Bartosz Bogdanski ,  Line Holen

IPC: H04L12/18 ,  H04L12/24 ,  H04L12/753 ,  G06F16/22 ,  H04L12/931 ,  H04L29/12 ,  H04L12/761 ,  H04L12/805 ,  H04L12/933 ,  G06F9/455 ,  H04L12/755 ,  H04L29/08 ,  H04L29/06

Abstract: Systems and methods for providing multicast group (MCG) membership relative to partition membership in a high performance computing environment. In allowing a subnet manager of a local subnet to be instructed that all ports that are members of the relevant partition should be set up as members for a specific multicast group, the SM can perform a more efficient multicast-routing process. It is also possible to limit the IB client interaction with subnet administration conventionally required to handle join and leave operations. Additionally, subnet manager overhead can be reduced by creating a spanning tree for the routing of multicast packets that includes each of the partition members added to the multicast group, instead of creating a spanning tree after each multicast group join request is received, as conventionally required.

公开(公告)号：US20210359904A1

公开(公告)日：2021-11-18

申请号：US17388466

申请日：2021-07-29

Applicant: Oracle International Corporation

Inventor： Bartosz Bogdanski ,  Bjørn Dag Johnsen ,  Feroz Zahid ,  Ernst Gunnar Gran

IPC: H04L12/24 ,  H04L12/751

Abstract: Systems and methods are provided for supporting efficient reconfiguration of an interconnection network having a pre-existing routing comprising. An exemplary method can provide, a plurality of switches, the plurality switches comprising at least one leaf switch, wherein each of the one or more switches comprise a plurality of ports, and a plurality of end nodes, wherein the plurality of end nodes are interconnected via the one or more switches. The method can detect, by a subnet manager, a reconfiguration triggering event. The method can compute, by the subnet manager, a new routing for the interconnection network, wherein the computing by the subnet manager of the new routing for the interconnection network takes into consideration the pre-existing routing and selects the new routing for the interconnection network that is closest to the pre-existing routing. The method can reconfigure the interconnection network according to the new routing.

公开(公告)号：US11140065B2

公开(公告)日：2021-10-05

申请号：US16850319

申请日：2020-04-16

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Bartosz Bogdanski

IPC: G06F9/455 ,  H04L12/751 ,  H04L12/66 ,  H04L12/947 ,  H04L12/741 ,  H04L29/06 ,  H04L12/813 ,  H04L29/08 ,  H04L12/931

Abstract: System and method for supporting virtual machine migration in a high performance computing environment. In accordance with an embodiment, when a virtual machine migrates from a first subnet to a second subnet, a gateway port at the first subnet can, upon receiving packets addressed to the migrated virtual machine, consult a memory lookup table to discover the virtual machine's new addresses. The gateway port can update the packet accordingly. The memory lookup table can be addressed based on a GUID of the virtual machine.

公开(公告)号：US11102128B2

公开(公告)日：2021-08-24

申请号：US16862101

申请日：2020-04-29

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Feroz Zahid ,  Ernst Gunnar Gran ,  Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L29/06 ,  H04L29/08 ,  H04L12/721 ,  H04L12/741 ,  H04L12/803 ,  G06F16/954 ,  G06F9/50 ,  H04L12/725 ,  H04L12/931 ,  G06F21/00 ,  G06F15/167 ,  H04L12/701

Abstract: A system and method for supporting load balancing in a multi-tenant cluster environment, in accordance with an embodiment. One or more tenants can be supported and each associated with a partition, which are each in turn associated with one or more end nodes. The method can provide a plurality of switches, the plurality of switches comprising a plurality of leaf switches and at least one switch at another level, wherein each of the plurality of switches comprise at least one port. The method can assign each node a weight parameter, and based upon this parameter, the method can route the plurality of end nodes within the multi-tenant cluster environment, wherein the routing attempts to preserve partition isolation.