公开(公告)号：US20160173401A1

公开(公告)日：2016-06-16

申请号：US14572431

申请日：2014-12-16

Applicant: Oracle International Corporation

Inventor： Arvind Srinivasan ,  Shimon Muller

IPC: H04L12/863 ,  H04L12/861 ,  H04L12/761

CPC classification number: H04L49/201 ,  H04L49/3027 ,  H04L49/3045

Abstract: A system for communicating a multi-destination packet through a network switch fabric with a plurality of input and output ports is described. This system receives the multi-destination packet at an input port, wherein the multi-destination packet includes a multicast packet or a broadcast packet that is directed to multiple output ports, and wherein the network switch fabric maintains a separate virtual output queue (VOQ) for each output port. Next, the system sends the multi-destination packet from the input port to the multiple output ports by inserting the multi-destination packet into VOQs associated with the multiple output ports. The multi-destination packet is inserted into one VOQ at a time, so that after the multi-destination packet is read out of a VOQ and is sent to a corresponding output port, the multi-destination packet is inserted in another VOQ until the multi-destination packet is sent to all of the multiple output ports.

Abstract translation: 描述了通过具有多个输入和输出端口的网络交换结构来传送多目的地分组的系统。 该系统在输入端口处接收多目的地分组，其中，多目的分组包括指向多个输出端口的多播分组或广播分组，并且其中网络交换机架构维护单独的虚拟输出队列（VOQ） 为每个输出端口。 接下来，通过将多目的地分组插入到与多个输出端口相关联的VOQ中，系统将多目的地分组从输入端口发送到多个输出端口。 多目的地分组一次被插入到一个VOQ中，从而在将多目的地分组从VOQ读出并发送到相应的输出端口之后，多目的地分组被插入到另一个VOQ中，直到多 发送数据包发送到所有多个输出端口。

公开(公告)号：US20140269311A1

公开(公告)日：2014-09-18

申请号：US13909429

申请日：2013-06-04

Applicant: Oracle International Corporation

Inventor： Arvind Srinivasan ,  Shimon Muller

IPC: H04L29/06 ,  H04L12/851

CPC classification number: H04L69/22 ,  H04L47/2441

Abstract: An apparatus that recursively classifies packets includes a hierarchical set of classification engines that perform parallel classification of the packets in a packet processing queue. In particular, a first classification engine separates the packets based on physical-layer information and/or link-layer information in the packets. Then, second classification engines further separate the packets into multiple parallel pipelines based on layer information in the packets that is other than the physical-layer information and the link-layer information. The first classification engine and the second classification engines maintain a relative ordering of the packets in network sub-flows while allowing changes in relative ordering among different network flows.

Abstract translation: 对分组进行递归分类的装置包括执行分组处理队列中的分组的并行分类的分级引擎集合。 特别地，第一分类引擎基于分组中的物理层信息和/或链路层信息来分离分组。 然后，第二分类引擎根据不同于物理层信息和链路层信息的分组中的层信息，进一步将分组分离成多个并行流水线。 第一分类引擎和第二分类引擎在网络子流中保持分组的相对排序，同时允许不同网络流之间相对排序的改变。

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：US10374926B2

公开(公告)日：2019-08-06

申请号：US15414211

申请日：2017-01-24

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan

IPC: G06F11/30 ,  G06F9/451 ,  G11C15/00 ,  H04L12/26 ,  H04L29/06 ,  H04L29/08 ,  H04L12/743 ,  H04L12/813 ,  H04L12/911 ,  H04L12/931 ,  H04L12/947

Abstract: System and method for monitoring logical network traffic flows using a ternary content addressable memory (TCAM). An exemplary embodiment can provide a network port that is associated with a TCAM. The TCAM can be configured with a plurality of entries, wherein each TCAM entry contains a value. Further, each TCAM entry can be associated with at least one network counter. A predefined set of values can be retrieved from at least one header field of a data packet processed by the network port. Each value in the predefined set of values can be aggregated into a search value, and the search value can be compared to the value contained in each TCAM entry. When a match is found between the search value and the value contained in a TCAM entry, each network counter associated with the matching TCAM entry can be incremented.

公开(公告)号：US20190222498A1

公开(公告)日：2019-07-18

申请号：US16363582

申请日：2019-03-25

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Brian Manula

IPC: H04L12/26 ,  H04L12/931 ,  H04L12/947 ,  H04L12/743 ,  H04L12/813 ,  H04L29/08 ,  G06F11/30 ,  G06F9/451 ,  H04L12/911 ,  H04L29/06 ,  G11C15/00

CPC classification number: H04L43/0876 ,  G06F9/451 ,  G06F11/3006 ,  G06F2201/88 ,  G11C15/00 ,  H04L45/7457 ,  H04L47/20 ,  H04L47/70 ,  H04L49/25 ,  H04L49/358 ,  H04L67/1097 ,  H04L69/22

Abstract: System and method providing resource access control within a single partition in a network switch environment in a high performance computing environment. A resource request portion of an IB packet includes data identifying a resource request for a requested resource, and a context identification portion of the packet includes data identifying a context of the resource request. Access rights to a controlled resource are determined based on the requested resource relative to the controlled resource and according to a comparison of the context of the resource request relative to one or more valid request context values. A resource table storing valid Q_Key and P_Key context values may be indexed by a Dest. QP of the packet header to determine selective access to the controlled resource and/or to data relating to the controlled resource.

公开(公告)号：US10284448B2

公开(公告)日：2019-05-07

申请号：US15416709

申请日：2017-01-26

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Brian Manula

IPC: H04L12/26 ,  G06F11/30 ,  G11C15/00 ,  H04L12/813 ,  H04L29/08 ,  H04L12/743 ,  H04L12/947 ,  H04L12/931 ,  H04L29/06 ,  H04L12/911 ,  G06F9/45 ,  G06F9/451

Abstract: System and method providing resource access control within a single partition in a network switch environment in a high performance computing environment. A resource request portion of an IB packet includes data identifying a resource request for a requested resource, and a context identification portion of the packet includes data identifying a context of the resource request. Access rights to a controlled resource are determined based on the requested resource relative to the controlled resource and according to a comparison of the context of the resource request relative to one or more valid request context values. A resource table storing valid Q_Key and P_Key context values may be indexed by a Dest. QP of the packet header to determine selective access to the controlled resource and/or to data relating to the controlled resource.

公开(公告)号：US20180109446A1

公开(公告)日：2018-04-19

申请号：US15294352

申请日：2016-10-14

Applicant: Oracle International Corporation

Inventor： Arvind Srinivasan ,  Bjorn Dag Johnsen ,  Shimon Muller

IPC: H04L12/725 ,  H04L12/703 ,  H04L12/947 ,  H04L12/707

CPC classification number: H04L45/302 ,  H04L45/22 ,  H04L45/28 ,  H04L49/25

Abstract: Upon detecting a failure of a switch link in a set of multiple redundant switch links that directly connect two nodes in the switch fabric network, the system performs a failover operation that remaps network traffic associated with the failed switch link to an alternative switch link in the set of multiple redundant switch links. Each node in the switch fabric network maintains a mapping table that translates from logical ports and associated logical virtual lanes to physical ports and associated virtual lanes. The system also provisions switch links with private virtual lanes comprising resources to facilitate failover operations. While remapping the network traffic, the system changes the mapping table so that network traffic, which is presently directed to a physical port and associated virtual lane for the failed switch link, is remapped to an alternative physical port and an associated private virtual lane, for the alternative switch link.

公开(公告)号：US20170324826A1

公开(公告)日：2017-11-09

申请号：US15656981

申请日：2017-07-21

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Bartosz Bogdanski

IPC: H04L29/08 ,  H04L12/761 ,  H04L12/707 ,  H04L12/931 ,  H04L12/18 ,  H04L12/933 ,  H04L12/66 ,  H04L12/935 ,  H04L29/06

CPC classification number: H04L67/2814 ,  G06F2201/88 ,  H04L12/18 ,  H04L12/185 ,  H04L12/1886 ,  H04L12/66 ,  H04L45/16 ,  H04L45/24 ,  H04L49/10 ,  H04L49/201 ,  H04L49/30 ,  H04L49/358 ,  H04L69/22

Abstract: System and method for supporting proxy based multicast forwarding in a high performance computing environment. In accordance with an embodiment, a proxy based multicast forwarding system and method can be utilized. A proxy, either software, firmware, or hardware based, can be initialized and run within a local subnet domain, wherein the proxy is a member of at least one multicast group (MCG). The proxy can be configured to forward packets to other subnet domains in several different methods.

公开(公告)号：US20170222928A1

公开(公告)日：2017-08-03

申请号：US15416642

申请日：2017-01-26

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Arvind Srinivasan ,  Shimon Muller

IPC: H04L12/743 ,  H04L29/06 ,  H04L12/947

CPC classification number: H04L43/0876 ,  G06F9/451 ,  G06F11/3006 ,  G06F2201/88 ,  G11C15/00 ,  H04L45/7457 ,  H04L47/20 ,  H04L47/70 ,  H04L49/25 ,  H04L49/358 ,  H04L67/1097 ,  H04L69/22

Abstract: System and method for supporting intra- and inter-subnet address resolution in a network environment using the same linear forwarding tale (LFT) for both the intra- and inter-subnet forwarding. Subnet prefix values in global route headers (GRHs) are used for linear forwarding table (LFT) lookup in a high performance computing environments. An exemplary can provide for use of an Inter Subnet Route Number (ISRN) embedded in the subnet prefix values in the GRHs for LFT lookup in a network switch environment in a high performance computing environment such as a network having an InfiniBand (IB) architecture. A method can provide, at a computer environment, including a network fabric, one or more subnets, each of which subnets are associated with one or more network switches or hosts. The system and method is compatible with legacy switches and nodes that are not conversant with the ISRNs.

公开(公告)号：US20170118033A1

公开(公告)日：2017-04-27

申请号：US14919409

申请日：2015-10-21

Applicant: Oracle International Corporation

Inventor： Arvind Srinivasan

IPC: H04L12/18 ,  H04L12/935 ,  H04L12/24 ,  H04L12/947 ,  H04L12/761

CPC classification number: H04L12/18 ,  H04L41/0893 ,  H04L49/25 ,  H04L49/3045

Abstract: A system for communicating a multicast packet through a network switch fabric is described. The system receives the multicast packet at an input port of the network switch fabric, where the multicast packet is directed to multiple output ports, and where the network switch fabric has a virtual output queue (VOQ)-based architecture, in which each input port maintains a separate VOQ for unicast packets to each output port and one or more VOQs for multicast packets destined to multiple output ports. The system sends the multicast packet by inserting the multicast packet into the one or more VOQs associated with the multiple output ports, so that multicast packets are queued separately from unicast packets. Moreover, the system may optionally dynamically modify a number of the one or more VOQs for the multicast packets based on a number of multicast flows through the network switch fabric.