公开(公告)号：US20190260675A1

公开(公告)日：2019-08-22

申请号：US16399195

申请日：2019-04-30

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Bartosz Bogdanski ,  Line Holen

IPC: H04L12/741 ,  H04L12/937 ,  H04L12/18 ,  H04L12/931 ,  H04L29/12 ,  H04L12/751 ,  H04L12/815 ,  H04L12/24 ,  G06F9/455 ,  H04L12/733 ,  H04L12/46 ,  H04L12/713 ,  H04L12/721 ,  H04L12/761 ,  H04L29/06 ,  H04L12/933 ,  H04L12/753

Abstract: Systems and methods for supporting unique multicast forwarding across multiple connected subnets in a high performance computing environment. In accordance with an embodiment, by enforcing that incoming (i.e., incoming on a router port of a subnet) multicast packets have SGIDs (source global identifiers) that correspond to a restricted set of source subnet numbers when entering the ingress router ports to a local subnet, it is possible to ensure that multicast packets sent from one subnet are never returned to the same subnet through a different set of connected router ports (i.e., avoid looping multicast packets).

公开(公告)号：US10374979B2

公开(公告)日：2019-08-06

申请号：US15845773

申请日：2017-12-18

Applicant: ORACLE INTERNATIONAL CORPORATION

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

IPC: H04L12/947 ,  H04L12/753 ,  H04L29/08 ,  H04L12/803

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：US09807003B2

公开(公告)日：2017-10-31

申请号：US14927085

申请日：2015-10-29

Applicant: Oracle International Corporation

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

IPC: G06F15/173 ,  H04L12/775 ,  H04L29/08 ,  H04L12/715 ,  H04L12/931 ,  H04L12/933

CPC classification number: H04L45/58 ,  H04L45/04 ,  H04L49/10 ,  H04L49/358 ,  H04L67/1002 ,  H04L67/1097

Abstract: A system and method can support partition-aware routing in a multi-tenant cluster environment. An exemplary method can support one or more tenants within the multi-tenant cluster environment. The method can associate each of the one or more tenants with a partition of a plurality of partitions. The method can then associate each of the plurality of partitions with one or more nodes of a plurality of nodes, each of the plurality of nodes being associated with a leaf switch of a plurality of switches, the plurality of switches comprising a plurality of leaf switches and a plurality of root switches. Finally, the method can generate one or more linear forwarding tables, the one or more linear forwarding tables providing isolation between the plurality of partitions, wherein each of the plurality of nodes is associated with a partitioning order.

公开(公告)号：US20170104682A1

公开(公告)日：2017-04-13

申请号：US15182383

申请日：2016-06-14

Applicant: ORACLE INTERNATIONAL CORPORATION

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

IPC: H04L12/803 ,  H04L12/931 ,  G06F17/30

CPC classification number: H04L47/125 ,  G06F9/5077 ,  G06F17/30873 ,  H04L45/00 ,  H04L45/302 ,  H04L49/358 ,  H04L49/503 ,  H04L49/70 ,  H04L67/1004

Abstract: A system and method for supporting network isolation in a multi-tenant cluster environment. An exemplary method can support one or more tenants, and can associate each of the one or more tenants with a partition of a plurality of partitions, and can also associate each of the plurality of partitions with one or more nodes of a plurality of nodes, each of the plurality of nodes being associated with a leaf switch of a plurality of switches. The method can mark each of the plurality of partitions with a policy parameter. The method can assign each node of the plurality of nodes a partitioning order based on the marked on the partition associated with each node. Finally, the method can, based at least upon the marking of the partition of the plurality of partitions, generate one or more linear forwarding tables for use in the multi-tenant cluster environment.

公开(公告)号：US20160277232A1

公开(公告)日：2016-09-22

申请号：US15073022

申请日：2016-03-17

Applicant: ORACLE INTERNATIONAL CORPORATION

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

IPC: H04L12/24 ,  H04L12/751

CPC classification number: H04L41/0672 ,  H04L45/02 ,  H04L45/48

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.

Abstract translation: 提供的系统和方法用于支持具有预先存在的路由的互连网络的有效重新配置。 一种示例性方法可以提供多个交换机，所述多个交换机包括至少一个叶片交换机，其中所述一个或多个交换机中的每一个包括多个端口和多个端节点，其中所述多个端节点互连 通过一个或多个开关。 该方法可以通过子网管理器检测重配置触发事件。 该方法可以由子网管理器计算互连网络的新路由，其中​​由子网管理器对互连网络的新路由的计算考虑了预先存在的路由并选择用于互连网络的新路由 最接近预先存在的路由。 该方法可以根据新的路由重配置互联网络。

公开(公告)号：US09231888B2

公开(公告)日：2016-01-05

申请号：US13889088

申请日：2013-05-07

Applicant: Oracle International Corporation

Inventor： Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L12/58 ,  H04L12/937 ,  H04L12/721 ,  H04L12/707 ,  H04L12/931 ,  G06F9/44 ,  H04L29/12

CPC classification number: H04L49/253 ,  G06F9/451 ,  H04L29/12 ,  H04L45/24 ,  H04L45/44 ,  H04L49/35 ,  H04L49/358

Abstract: A system and method can rout traffic between distinct subnets in a network environment. A router that connects the distinct subnets, such as InfiniBand (IB) subnets, can receive a list of destinations that the router is responsible for routing one or more packets to. Then, the router can generate a random number based on a source local identifier (LID) and a destination LID associated with the one or more packets, and use a modulo based hash to select one router port from a plurality of output router ports of the router.

Abstract translation: 系统和方法可以在网络环境中的不同子网之间进行路由。 连接不同子网（如InfiniBand（IB））子网的路由器可以接收路由器负责路由一个或多个数据包的目的地列表。 然后，路由器可以基于源本地标识符（LID）和与一个或多个分组相关联的目的地LID来生成随机数，并且使用基于模的散列从多个输出路由器端口中选择一个路由器端口 路由器。

公开(公告)号：US20130121149A1

公开(公告)日：2013-05-16

申请号：US13671467

申请日：2012-11-07

Applicant: Oracle International Corporation

Inventor： Wei Lin Guay ,  Bartosz Bogdanski

IPC: H04L12/24

CPC classification number: H04L47/12 ,  H04L45/28 ,  H04L45/48

Abstract: A system and method can alleviate congestion in a middleware machine environment with a plurality of switches in a fat-tree topology. The middleware machine environment can support a plurality of end nodes and allows for generating a virtual lane assignment for every pair of source end node and destination end node. Then, the packet flows from a source end node to different destination end nodes sharing a physical link can be distributed across different virtual lanes in order to avoid the head-of-line (HOL) blocking.

Abstract translation: 一种系统和方法可以通过胖树拓扑中的多个交换机减轻中间件机器环境中的拥塞。 中间件机器环境可以支持多个端节点，并且允许为每对源端节点和目的地端节点生成虚拟通道分配。 然后，从源端节点到分组物理链路的不同目的地端节点的分组可以分布在不同的虚拟通道上，以避免线头（HOL）阻塞。

公开(公告)号：US20220368652A1

公开(公告)日：2022-11-17

申请号：US17860590

申请日：2022-07-08

Applicant: ORACLE INTERNATIONAL CORPORATION

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

IPC: 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：US11095498B2

公开(公告)日：2021-08-17

申请号：US16685257

申请日：2019-11-15

Applicant: Oracle International Corporation

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

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/753

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：US11082543B2

公开(公告)日：2021-08-03

申请号：US16834623

申请日：2020-03-30

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Bartosz Bogdanski

IPC: H04L29/06 ,  H04L12/931 ,  H04L12/18 ,  H04L12/947 ,  H04L29/12 ,  H04L12/761 ,  H04L12/813 ,  H04L12/743 ,  H04L12/741 ,  H04L12/46

Abstract: System and method for supporting shared multicast local identifiers (MLIDs) a high performance computing environment. In accordance with an embodiment, a shared MLID range can be configured such that each subnet within a fabric can utilize an MLID within a shared MLID range without the need to utilize a TCAM, or other memory, lookup of a MGID to MLID mapping.