公开(公告)号：US20130064246A1

公开(公告)日：2013-03-14

申请号：US13229894

申请日：2011-09-12

申请人： Sarang Dharmapurikar ,  Kit Chiu Chu ,  Mahesh Maddury ,  Dinesh G. Dutt ,  Francisco Matus

发明人： Sarang Dharmapurikar ,  Kit Chiu Chu ,  Mahesh Maddury ,  Dinesh G. Dutt ,  Francisco Matus

IPC分类号： H04L12/56

CPC分类号： H04L45/54 ,  H04L45/7453 ,  H04L49/25 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/354

摘要： Techniques are provided for forwarding packets via an intermediate network device. A packet comprising a destination MAC address is received at a first port of a network device having a plurality of bi-directional ports. A second port of the network device to which the packet should be forwarded is identified through the use of at least an approximate ingress table at the first port comprising a plurality of compressed destination MAC addresses each having an associated egress port, and the packet is forwarded to the second port. At the second port, a subsequent network device to which the packet should be forwarded is identified through the use of an exact egress table at the second port including exact destination MAC addresses each associated with a network device connected to the second port, and the packet is forwarded to the subsequent network device.

摘要翻译： 提供了用于经由中间网络设备转发分组的技术。 在具有多个双向端口的网络设备的第一端口处接收包括目的地MAC地址的分组。 通过至少使用包括多个压缩目的地MAC地址的第一端口的近似入口表来识别分组应转发到的网络设备的第二端口，每个端口具有相关联的出口端口，并且该分组被转发 到第二个港口 在第二端口，通过使用第二端口处的精确出口表来识别分组应转发到的后续网络设备，包括与连接到第二端口的网络设备相关联的确切目的地MAC地址，并且分组 被转发到后续的网络设备。

公开(公告)号：US20130034097A1

公开(公告)日：2013-02-07

申请号：US13136516

申请日：2011-08-03

申请人： Sarang Dharmapurikar ,  Mahesh Maddury ,  Francisco Matus

发明人： Sarang Dharmapurikar ,  Mahesh Maddury ,  Francisco Matus

IPC分类号： H04L12/56

CPC分类号： H04L45/026 ,  H04L45/16 ,  H04L45/245 ,  H04L45/54 ,  Y02D50/30

摘要： In one embodiment, a method includes receiving a packet at an interface at a network device having a plurality of interfaces connected to a plurality of links forming a bundle, performing a Reverse Path Forwarding (RPF) check on the received packet, and forwarding the packet if it passes the RPF check. The RPF check includes a lookup in an RPF table having a plurality of entries for the bundle, each of the entries including the bundle and one of the links in the bundle, and verification that the interface receiving the packet is connected to one of the links in the bundle identified in the lookup. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括在具有连接到形成捆绑包的多个链路的多个接口的网络设备的接口处接收分组，对所接收的分组进行反向路径转发（RPF）检查，以及转发分组 如果通过RPF检查。 RPF检查包括在具有多个条目的RPF表中的查找，每个条目包括捆绑包和捆绑中的一个链路，以及接收分组的接口连接到链路之一的验证 在查找中标识的包中。 还公开了一种装置。

公开(公告)号：US08873558B2

公开(公告)日：2014-10-28

申请号：US13136516

申请日：2011-08-03

申请人： Sarang Dharmapurikar ,  Mahesh Maddury ,  Francisco Matus

发明人： Sarang Dharmapurikar ,  Mahesh Maddury ,  Francisco Matus

IPC分类号： H04L12/28 ,  H04J3/24 ,  H04L12/761 ,  H04L12/751

CPC分类号： H04L45/026 ,  H04L45/16 ,  H04L45/245 ,  H04L45/54 ,  Y02D50/30

摘要： In one embodiment, a method includes receiving a packet at an interface at a network device having a plurality of interfaces connected to a plurality of links forming a bundle, performing a Reverse Path Forwarding (RPF) check on the received packet, and forwarding the packet if it passes the RPF check. The RPF check includes a lookup in an RPF table having a plurality of entries for the bundle, each of the entries including the bundle and one of the links in the bundle, and verification that the interface receiving the packet is connected to one of the links in the bundle identified in the lookup. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括在具有连接到形成捆绑包的多个链路的多个接口的网络设备的接口处接收分组，对所接收的分组进行反向路径转发（RPF）检查，以及转发分组 如果通过RPF检查。 RPF检查包括在具有多个条目的RPF表中的查找，每个条目包括捆绑包和捆绑中的一个链路，以及接收分组的接口连接到链路之一的验证 在查找中标识的包中。 还公开了一种装置。

公开(公告)号：US20110243136A1

公开(公告)日：2011-10-06

申请号：US12798131

申请日：2010-03-30

申请人： Pirabhu Raman ,  Dinesh Dutt ,  Mahesh Maddury ,  Subbarao Arumilli ,  Vijay Rangarajan ,  Ray Kloth ,  Sanjay Sane

发明人： Pirabhu Raman ,  Dinesh Dutt ,  Mahesh Maddury ,  Subbarao Arumilli ,  Vijay Rangarajan ,  Ray Kloth ,  Sanjay Sane

IPC分类号： H04L12/56

CPC分类号： H04L49/201 ,  H04L45/60 ,  H04L49/354 ,  H04L49/70

摘要： In one embodiment, a method includes receiving a multi-destination packet at a switch in communication with a plurality of servers through a network device, identifying a port receiving the multi-destination packet at the switch or a forwarding topology for the multi-destination packet, selecting a bit value based on the identified port or forwarding topology, inserting the bit value into a field in a virtual network tag in the multi-destination packet, and forwarding the multi-destination packet with the virtual network tag to the network device. The network device is configured to forward the multi-destination packet to one or more of the servers based on the bit value in the multi-destination packet. An apparatus for forwarding multi-destination packets is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括通过网络设备在与多个服务器通信的交换机处接收多目的地分组，识别在交换机处接收多目的地分组的端口或多目的地分组的转发拓扑 基于所识别的端口或转发拓扑来选择位值，将所述位值插入到所述多目的地分组中的虚拟网络标签中的字段中，并将具有所述虚拟网络标签的所述多目的地分组转发到所述网络设备。 网络设备被配置为基于多目的地分组中的比特值将多目的地分组转发到一个或多个服务器。 还公开了用于转发多目的地分组的装置。

公开(公告)号：US20190303281A1

公开(公告)日：2019-10-03

申请号：US15941468

申请日：2018-03-30

申请人： Amin Firoozshahian ,  Vedaraman Greetha ,  Andreas Kleen ,  Stephen Van Doren ,  Omid Azizi ,  Mahesh Madhav ,  Mahesh Maddury ,  Chandan Egbert

发明人： Amin Firoozshahian ,  Vedaraman Greetha ,  Andreas Kleen ,  Stephen Van Doren ,  Omid Azizi ,  Mahesh Madhav ,  Mahesh Maddury ,  Chandan Egbert

IPC分类号： G06F12/02 ,  G06F12/06

摘要： Various systems and methods for controlling memory traffic flow rate are described herein. A system for computer memory management, the system comprising: rate control circuitry to: receive a rate exceeded signal from monitoring circuitry, the rate exceeded signal indicating that memory traffic flow from a traffic source exceeds a threshold; receive a distress signal from a memory controller that interfaces with a memory device, the distress signal indicating that the memory device is oversubscribed; and implement throttle circuitry to throttle the memory traffic flow from the traffic source when the rate exceeded signal and the distress signal are both asserted.

公开(公告)号：US20190212935A1

公开(公告)日：2019-07-11

申请号：US15868787

申请日：2018-01-11

申请人： Chandan Egbert ,  Amin Firoozshahian ,  Mahesh Maddury ,  John Stevenson ,  Henk Neefs ,  Omid Azizi

发明人： Chandan Egbert ,  Amin Firoozshahian ,  Mahesh Maddury ,  John Stevenson ,  Henk Neefs ,  Omid Azizi

IPC分类号： G06F3/06 ,  G06F12/02 ,  G06F12/0811 ,  G06F12/084 ,  G06F12/0868

摘要： Various systems and methods for computer memory management are described herein. A system for computer memory management includes a first memory device including a mapping table; a second memory device including a staging area; a third memory device including a dedup data region; and a controller operable to: receive a memory access request, the memory access request including an address and data; write the data to the staging area; and update the mapping table with the address.

公开(公告)号：US20190042461A1

公开(公告)日：2019-02-07

申请号：US15958591

申请日：2018-04-20

申请人： Rupin Vakharwala ,  Amin Firoozshahian ,  Stephen Van Doren ,  Rajesh Sankaran ,  Mahesh Madhav ,  Omid Azizi ,  Andreas Kleen ,  Mahesh Maddury ,  Ashok Raj

发明人： Rupin Vakharwala ,  Amin Firoozshahian ,  Stephen Van Doren ,  Rajesh Sankaran ,  Mahesh Madhav ,  Omid Azizi ,  Andreas Kleen ,  Mahesh Maddury ,  Ashok Raj

IPC分类号： G06F12/1009 ,  G06F3/06 ,  G06F12/0862 ,  G06F9/38

摘要： A processing device includes a core to execute instructions, and memory management circuitry coupled to, memory, the core and an I/O device that supports page faults. The memory management circuitry includes an express invalidations circuitry, and a page translation permission circuitry. The memory management circuitry is to, while the core is executing the instructions, receive a command to pause communication between the I/O device and the memory. In response to receiving the command to pause the communication, modify permissions of page translations by the page translation permission circuitry and transmit an invalidation request, by the express invalidations circuitry to the I/O device, to cause cached page translations in the I/O device to be invalidated.

公开(公告)号：US20190213120A1

公开(公告)日：2019-07-11

申请号：US15868819

申请日：2018-01-11

申请人： Omid Azizi ,  Amin Firoozshahian ,  Andreas Kleen ,  Mahesh Madhav ,  Mahesh Maddury ,  Chandan Egbert ,  Eric Gouldey

发明人： Omid Azizi ,  Amin Firoozshahian ,  Andreas Kleen ,  Mahesh Madhav ,  Mahesh Maddury ,  Chandan Egbert ,  Eric Gouldey

IPC分类号： G06F12/02 ,  G06F9/50 ,  G06F3/06

CPC分类号： G06F12/0246 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/065 ,  G06F9/5016 ,  G06F12/0292

摘要： Various systems and methods for computer memory overcommitment management are described herein. A system for computer memory management includes a memory device to store data and a mapping table; and a memory overcommitment circuitry to: receive a signal to move data in a first block from a memory reduction area in the memory device to a non-memory reduction area in the memory device, the memory reduction area to store data using a memory reduction technique, and the non-memory reduction area to store data without any memory reduction techniques; allocate a second block in the non-memory reduction area; copy the data in the first block to the second block; and update the mapping table to revise a pointer to point to the second block, the mapping table used to store pointers to memory device in the memory reduction area and the non-memory reduction area.

公开(公告)号：US08249069B2

公开(公告)日：2012-08-21

申请号：US12798131

申请日：2010-03-30

申请人： Pirabhu Raman ,  Dinesh Dutt ,  Mahesh Maddury ,  Subbarao Arumilli ,  Vijay Rangarajan ,  Ray Kloth ,  Sanjay Sane

发明人： Pirabhu Raman ,  Dinesh Dutt ,  Mahesh Maddury ,  Subbarao Arumilli ,  Vijay Rangarajan ,  Ray Kloth ,  Sanjay Sane

IPC分类号： H04L12/28

CPC分类号： H04L49/201 ,  H04L45/60 ,  H04L49/354 ,  H04L49/70

摘要： In one embodiment, a method includes receiving a multi-destination packet at a switch in communication with a plurality of servers through a network device, identifying a port receiving the multi-destination packet at the switch or a forwarding topology for the multi-destination packet, selecting a bit value based on the identified port or forwarding topology, inserting the bit value into a field in a virtual network tag in the multi-destination packet, and forwarding the multi-destination packet with the virtual network tag to the network device. The network device is configured to forward the multi-destination packet to one or more of the servers based on the bit value in the multi-destination packet. An apparatus for forwarding multi-destination packets is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括通过网络设备在与多个服务器通信的交换机处接收多目的地分组，识别在交换机处接收多目的地分组的端口或多目的地分组的转发拓扑 基于所识别的端口或转发拓扑来选择位值，将所述位值插入到所述多目的地分组中的虚拟网络标签中的字段中，并将具有所述虚拟网络标签的所述多目的地分组转发到所述网络设备。 网络设备被配置为基于多目的地分组中的比特值将多目的地分组转发到一个或多个服务器。 还公开了用于转发多目的地分组的装置。