公开(公告)号：US11930075B2

公开(公告)日：2024-03-12

申请号：US18078323

申请日：2022-12-09

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Evangelos Tasoulas ,  Feroz Zahid ,  Bjørn Dag Johnsen ,  Ernst Gunnar Gran

IPC: H04L67/1095 ,  G06F9/48 ,  G06F9/50 ,  H04L12/46 ,  H04L41/0816 ,  H04L45/00 ,  H04L45/02 ,  H04L45/48 ,  H04L47/125 ,  H04L49/00

CPC classification number: H04L67/1095 ,  G06F9/4856 ,  G06F9/5077 ,  H04L12/4625 ,  H04L41/0816 ,  H04L45/48 ,  H04L49/70 ,  H04L45/02 ,  H04L45/22 ,  H04L47/125

Abstract: Systems and methods for supporting efficient virtualization in a lossless interconnection network. An exemplary method can provide, one or more switches, including at least a leaf switch, a plurality of host channel adapters, wherein each of the host channel adapters comprise at least one virtual function, at least one virtual switch, and at least one physical function, a plurality of hypervisors, and a plurality of virtual machines, wherein each of the plurality of virtual machines are associated with at least one virtual function. 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 assign each virtual switch with a LID. The method can calculate one or more linear forwarding tables based at least upon the LIDs assigned to each of the virtual switches.

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：US11533363B2

公开(公告)日：2022-12-20

申请号：US17020251

申请日：2020-09-14

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Evangelos Tasoulas ,  Feroz Zahid ,  Bjørn Dag Johnsen ,  Ernst Gunnar Gran

IPC: H04L67/1095 ,  H04L41/0816 ,  H04L49/00 ,  H04L45/48 ,  H04L12/46 ,  G06F9/50 ,  G06F9/48 ,  H04L45/02 ,  H04L45/00 ,  H04L47/125

Abstract: Systems and methods for supporting efficient virtualization in a lossless interconnection network. An exemplary method can provide, one or more switches, including at least a leaf switch, a plurality of host channel adapters, wherein each of the host channel adapters comprise at least one virtual function, at least one virtual switch, and at least one physical function, a plurality of hypervisors, and a plurality of virtual machines, wherein each of the plurality of virtual machines are associated with at least one virtual function. 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 assign each virtual switch with a LID. The method can calculate one or more linear forwarding tables based at least upon the LIDs assigned to each of the virtual switches.

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：US20210389969A1

公开(公告)日：2021-12-16

申请号：US17458030

申请日：2021-08-26

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Evangelos Tasoulas ,  Ernst Gunnar Gran

IPC: G06F9/455 ,  H04L12/931 ,  G06F9/48 ,  G06F9/50

Abstract: Systems and methods are provided for implementing a Virtual Switch (vSwitch) architecture that supports transparent virtualization and live migration. In an embodiment, a vSwitch with prepopulated Local Identifiers (LIDs). Another embodiment provides for vSwitch with dynamic LID assignment. Another embodiment provides for vSwitch with prepopulated LIDS and dynamic LID assignment Moreover, embodiments of the present invention provide scalable dynamic network reconfiguration methods which enable live migrations of VMs in network environments.

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：US11132216B2

公开(公告)日：2021-09-28

申请号：US16703426

申请日：2019-12-04

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Evangelos Tasoulas ,  Ernst Gunnar Gran

IPC: G06F9/455 ,  G06F9/48 ,  G06F9/50 ,  H04L12/931

Abstract: Systems and methods are provided for implementing a Virtual Switch (vSwitch) architecture that supports transparent virtualization and live migration. In an embodiment, a vSwitch with prepopulated Local Identifiers (LIDs). Another embodiment provides for vSwitch with dynamic LID assignment. Another embodiment provides for vSwitch with prepopulated LIDS and dynamic LID assignment. Moreover, embodiments of the present invention provide scalable dynamic network reconfiguration methods which enable live migrations of VMs in network environments.

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.

公开(公告)号：US20210203544A1

公开(公告)日：2021-07-01

申请号：US17200651

申请日：2021-03-12

Applicant: ORACLE INTERNATIONAL CORPORATION

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

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/703 ,  H04L12/707

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：US10747575B2

公开(公告)日：2020-08-18

申请号：US16262637

申请日：2019-01-30

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Evangelos Tasoulas ,  Bjørn Dag Johnsen ,  Ernst Gunnar Gran

IPC: G06F9/48 ,  H04L29/08 ,  H04W4/60 ,  H04L29/06

Abstract: A system and method support can subnet management in a cloud environment. During a virtual machine migration in a cloud environment, a subnet manager can become a bottleneck point that delays efficient service. A system and method can alleviate this bottleneck point by ensuring a virtual machine retains a plurality of addresses after migration. The system and method can further allow for each host node within the cloud environment to be associated with a local cache that virtual machines can utilize when re-establishing communication with a migrated virtual machine.