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公开(公告)号：US20140269311A1
公开(公告)日：2014-09-18
申请号：US13909429
申请日：2013-06-04
发明人： Arvind Srinivasan , Shimon Muller
IPC分类号： H04L29/06 , H04L12/851
CPC分类号： H04L69/22 , H04L47/2441
摘要： 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.
摘要翻译： 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。
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12.发明授权公开(公告)号：US11140065B2
公开(公告)日：2021-10-05
申请号：US16850319
申请日：2020-04-16
IPC分类号： G06F9/455 , H04L12/751 , H04L12/66 , H04L12/947 , H04L12/741 , H04L29/06 , H04L12/813 , H04L29/08 , H04L12/931
摘要： 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.
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公开(公告)号：US10374926B2
公开(公告)日：2019-08-06
申请号：US15414211
申请日：2017-01-24
IPC分类号： G06F11/30 , G06F9/451 , G11C15/00 , H04L12/26 , H04L29/06 , H04L29/08 , H04L12/743 , H04L12/813 , H04L12/911 , H04L12/931 , H04L12/947
摘要： 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.
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公开(公告)号：US20190222498A1
公开(公告)日：2019-07-18
申请号：US16363582
申请日：2019-03-25
IPC分类号： H04L12/26 , H04L12/931 , H04L12/947 , H04L12/743 , H04L12/813 , H04L29/08 , G06F11/30 , G06F9/451 , H04L12/911 , H04L29/06 , G11C15/00
CPC分类号： H04L43/0876 , G06F9/451 , G06F11/3006 , G06F2201/88 , G11C15/00 , H04L45/7457 , H04L47/20 , H04L47/70 , H04L49/25 , H04L49/358 , H04L67/1097 , H04L69/22
摘要： 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.
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公开(公告)号：US10284448B2
公开(公告)日：2019-05-07
申请号：US15416709
申请日：2017-01-26
IPC分类号： H04L12/26 , G06F11/30 , G11C15/00 , H04L12/813 , H04L29/08 , H04L12/743 , H04L12/947 , H04L12/931 , H04L29/06 , H04L12/911 , G06F9/45 , G06F9/451
摘要： 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.
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16.发明申请公开(公告)号：US20180109446A1
公开(公告)日：2018-04-19
申请号：US15294352
申请日：2016-10-14
IPC分类号： H04L12/725 , H04L12/703 , H04L12/947 , H04L12/707
CPC分类号： H04L45/302 , H04L45/22 , H04L45/28 , H04L49/25
摘要： 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.
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17.发明申请公开(公告)号：US20170324826A1
公开(公告)日：2017-11-09
申请号：US15656981
申请日：2017-07-21
IPC分类号： H04L29/08 , H04L12/761 , H04L12/707 , H04L12/931 , H04L12/18 , H04L12/933 , H04L12/66 , H04L12/935 , H04L29/06
CPC分类号： 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
摘要： 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.
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公开(公告)号：US20170222928A1
公开(公告)日：2017-08-03
申请号：US15416642
申请日：2017-01-26
IPC分类号： H04L12/743 , H04L29/06 , H04L12/947
CPC分类号： H04L43/0876 , G06F9/451 , G06F11/3006 , G06F2201/88 , G11C15/00 , H04L45/7457 , H04L47/20 , H04L47/70 , H04L49/25 , H04L49/358 , H04L67/1097 , H04L69/22
摘要： 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.
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公开(公告)号：US20170118033A1
公开(公告)日：2017-04-27
申请号：US14919409
申请日：2015-10-21
发明人： Arvind Srinivasan
IPC分类号： H04L12/18 , H04L12/935 , H04L12/24 , H04L12/947 , H04L12/761
CPC分类号： H04L12/18 , H04L41/0893 , H04L49/25 , H04L49/3045
摘要： 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.
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20.发明授权公开(公告)号：US09544232B2
公开(公告)日：2017-01-10
申请号：US14072658
申请日：2013-11-05
IPC分类号： H04L12/743 , H04L12/54 , H04L12/713
CPC分类号： H04L45/7457 , H04L12/56 , H04L45/586
摘要： A system and method can support dynamic provisioning in a network switch environment, such as supporting virtualized switch classification tables in a network switch. The system can provide a plurality of memory blocks that can be used to build one or more classification tables for supporting packet processing. Furthermore, the system can comprise a management entity that operates to monitor traffic profile associated with a network port in the network switch. Then, the management entity can allocate one or more memory blocks in the plurality of memory blocks for a logical classification table, and associate the logical classification table with the network port.
摘要翻译： 系统和方法可以支持网络交换机环境中的动态配置，例如在网络交换机中支持虚拟交换机分类表。 该系统可以提供多个可用于构建用于支持分组处理的一个或多个分类表的存储块。 此外，该系统可以包括管理实体，其操作以监视与网络交换机中的网络端口相关联的流量简档。 然后，管理实体可以在多个存储块中分配用于逻辑分类表的一个或多个存储块，并将逻辑分类表与网络端口相关联。
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