专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20150295862A1 HIERARCHICAL PROGRAMMING OF DUAL-STACK SWITCHES IN A NETWORK ENVIRONMENT 有权
标题翻译：网络环境中双层交换机的分层编程
公开(公告)号：US20150295862A1
公开(公告)日：2015-10-15
申请号：US14276628
申请日：2014-05-13
申请人： CISCO TECHNOLOGY, INC.
发明人： Ayan Banerjee , Ramesh V. N. Ponnapalli
IPC分类号： H04L12/931 , H04L29/12
CPC分类号： H04L49/602 , H04L49/3009 , H04L61/251 , H04L61/2542 , H04L61/6004 , H04L61/6022 , H04L61/6059 , H04L61/6086
摘要： An example method for hierarchical programming of dual-stack switches in a network environment is provided and includes receiving packets from the network at a line card in the modular switch, a first portion of the packets being destined to Internet Protocol version 6 (IPv6) destination IP (DIP) addresses and a second portion of the packets being destined to IPv4 DIP addresses, and performing hierarchical lookups of the IPv6 DIP addresses and the IPv4 DIP addresses. Layer 3 (L3) lookups for the IPv6 DIP addresses are performed at the line card, and L3 lookups for IPv4 DIP addresses are performed at a fabric module in the modular switch. The line card and the fabric module are interconnected inside a chassis of the modular switch. In specific embodiments, the method further comprises inspecting the packets' destination Media Access Control (DMAC) addresses comprising router MAC addresses indicative of IPv6 or IPv4 address families.
摘要翻译：提供了一种用于网络环境中的双栈交换机的分级编程的示例方法，包括在模块交换机中的线卡处从网络接收分组，分组的第一部分目的地为因特网协议版本6（IPv6）目的地 IP（DIP）地址，第二部分数据包目的地为IPv4 DIP地址，并执行IPv6 DIP地址和IPv4 DIP地址的分层查询。在线卡上执行IPv6 DIP地址的第3层（L3）查找，并且在模块交换机的结构模块中执行IPv4 DIP地址的L3查找。线卡和织物模块在模块化开关的机箱内互连。在具体实施例中，该方法还包括检查包括指示IPv6或IPv4地址族的路由器MAC地址的分组的目的地媒体访问控制（DMAC）地址。

42. 发明授权

US08902794B2 System and method for providing N-way link-state routing redundancy without peer links in a network environment 有权
标题翻译：在网络环境中提供无对等链路的N路链路状态路由冗余的系统和方法
公开(公告)号：US08902794B2
公开(公告)日：2014-12-02
申请号：US13629587
申请日：2012-09-27
申请人： Cisco Technology, Inc.
发明人： Varun Shah , Tissa Senevirathne , Ayan Banerjee , Ronak Desai , Raghava Sivaramu
IPC分类号： H04L12/28 , H04L12/44
CPC分类号： H04L12/44 , H04L45/48
摘要： A method is provided in one example and includes broadcasting a switching node identifier associated with a first link-state protocol enabled switching node to a plurality of link-state protocol enabled switching nodes. The plurality of link-state protocol enabled switching nodes are in communication with one another by a link-state protocol cloud. The method further includes broadcasting a priority associated with the first link-state protocol enabled switching node to the plurality of link-state protocol enabled switching nodes. The method further includes broadcasting connectivity information of the first link-state protocol enabled switching node to the plurality of link-state protocol enabled switching nodes using the link-state protocol cloud. The connectivity information includes connectivity of the first link-state protocol enabled switching node with at least one spanning tree protocol enabled switching node.
摘要翻译：在一个示例中提供了一种方法，并且包括将与启用第一链路状态协议的交换节点相关联的交换节点标识广播到多个支持链路状态协议的交换节点。多个链路状态协议使能的交换节点通过链路状态协议云彼此通信。该方法还包括将与启用第一链路状态协议的交换节点相关联的优先级广播到多个支持链路状态协议的交换节点。该方法还包括使用链路状态协议云将具有第一链路状态协议的交换节点的连接信息广播到使用多个链路状态协议的交换节点。连通性信息包括启用第一链路状态协议的交换节点与至少一个支持生成树协议的交换节点的连通性。

43. 发明授权

US11632337B1 Compute express link over ethernet in composable data centers 有权
公开(公告)号：US11632337B1
公开(公告)日：2023-04-18
申请号：US17751210
申请日：2022-05-23
申请人： Cisco Technology, Inc.
发明人： Ayan Banerjee , Ramesh Sivakolundu , Chakradhar Kar , Sagar Borikar , Anant Thakar
IPC分类号： H04L47/72 , H04L67/141 , G06F9/50 , G06F3/06 , H04L47/70
摘要： Techniques for sending Compute Express Link (CXL) packets over Ethernet (CXL-E) in a composable data center that may include disaggregated, composable servers. The techniques may include receiving, from a first server device, a request to bind the first server device with a multiple logical device (MLD) appliance. Based at least in part on the request, a first CXL-E connection may be established for the first server device to export a computing resource to the MLD appliance. The techniques may also include receiving, from the MLD appliance, an indication that the computing resource is available, and receiving, from a second server device, a second request for the computing resource. Based at least in part on the second request, a second CXL-E connection may be established for the second server device to consume or otherwise utilize the computing resource of the first server device via the MLD appliance.

44. 发明授权

US11627062B2 Designated intermediate system (DIS) priority changing 有权
公开(公告)号：US11627062B2
公开(公告)日：2023-04-11
申请号：US17830176
申请日：2022-06-01
申请人： Cisco Technology, Inc.
发明人： Ayan Banerjee , Dhananjaya Rao , Sridhar Santhanam
IPC分类号： G06F15/173 , H04L43/0817 , H04L43/0876 , H04L41/12 , H04L43/0811 , H04L43/0823
摘要： A communication pathway between a plurality of network nodes within a network is established. A DIS election operation is executed to determine a first network node among the plurality of network nodes as the DIS for the network and creating a first pseudo node for the first network node, and with each network node of the plurality of network nodes, determining whether the connectivity between the first network node and the other network nodes of the plurality of network nodes within the network is in a synchronous state with the adjacencies with the other network nodes of the plurality of network nodes within the network.

45. 发明授权

US11601377B1 Unlocking computing resources for decomposable data centers 有权
公开(公告)号：US11601377B1
公开(公告)日：2023-03-07
申请号：US17751181
申请日：2022-05-23
申请人： Cisco Technology, Inc.
发明人： Chakradhar Kar , Sagar Borikar , Ramesh Sivakolundu , Ayan Banerjee , Anant Thakar
IPC分类号： H04L47/722 , H04L67/568 , H04L69/08
摘要： Techniques for sending Compute Express Link (CXL) packets over Ethernet (CXL-E) in a composable data center that may include disaggregated, composable servers. The techniques may include receiving, from a first server device, a request to bind the first server device with a multiple logical device (MLD) appliance. Based at least in part on the request, a first CXL-E connection may be established for the first server device to export a computing resource to the MLD appliance. The techniques may also include receiving, from the MLD appliance, an indication that the computing resource is available, and receiving, from a second server device, a second request for the computing resource. Based at least in part on the second request, a second CXL-E connection may be established for the second server device to consume or otherwise utilize the computing resource of the first server device via the MLD appliance.

46. 发明授权

US11588884B2 Utilizing network analytics for service provisioning 有权
公开(公告)号：US11588884B2
公开(公告)日：2023-02-21
申请号：US16565048
申请日：2019-09-09
申请人： Cisco Technology, Inc.
发明人： Ayan Banerjee , Nataraj Batchu , Varun Shah
IPC分类号： G06F9/455 , G06F9/50 , H04L43/0882 , H04L43/16 , H04L67/51 , H04L67/1008 , H04L47/80 , H04L45/745
摘要： This disclosure describes techniques for collecting network parameter data for network switches and/or physical servers and provisioning virtual resources of a service on physical servers based on network resource availability. The network parameter data may include network resource availability data, diagnostic constraint data, traffic flow data, etc. The techniques include determining network switches that have an availability of network resources to support a virtual resource on a connected physical server. A scheduler may deploy virtual machines to particular servers based on the network parameter data in lieu of, or in addition to, the server utilization data of the physical servers (e.g., CPU usage, memory usage, etc.). In this way, a virtual resource may be deployed to a physical server that has an availability of the server resources, but also is connected to a network switch with the availability of network resources to support the virtual resource.

47. 发明授权

US10454839B1 Deadlock avoidance in leaf-spine networks 有权
公开(公告)号：US10454839B1
公开(公告)日：2019-10-22
申请号：US15979865
申请日：2018-05-15
申请人： Cisco Technology, Inc.
发明人： Liangi Lin , Thomas J. Edsall , Ayan Banerjee
IPC分类号： G06F11/00 , H04L12/823 , H04L12/44 , H04L12/741 , H04L12/859 , H04L12/26 , H04L12/851 , H04L12/865
摘要： Techniques for implementing deadlock avoidance in a leaf-spine network are described. In one embodiment, a method includes monitoring traffic of a plurality of packets at a leaf switch in a network having a leaf-spine topology. The method includes marking a packet with an identifier associated with an inbound uplink port of the leaf switch when the packet is received from one of a first spine switch and a second spine switch. The method includes detecting a valley routing condition upon determining that the packet marked with the identifier is being routed to an outbound uplink port of the leaf switch to be transmitted to the first spine switch or the second spine switch. Upon detecting the valley routing condition, the method includes dropping packets associated with a no-drop class of service when a packet buffer of the inbound uplink port reaches a predetermined threshold.

48. 发明授权

US10250504B1 Longest prefix matching operations on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system 有权
公开(公告)号：US10250504B1
公开(公告)日：2019-04-02
申请号：US15724092
申请日：2017-10-03
申请人： Cisco Technology, Inc.
发明人： Venkata Naga Ramesh Ponnapalli , Ayan Banerjee , Raghava K Sivaramu , Nataraj Bacthu
IPC分类号： H04L12/745 , H04L12/743 , H04L12/721
摘要： In one embodiment, longest prefix matching (LPM) operations are performed on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system. A first LPM lookup unit performs a first LPM operation on the particular lookup value in a first search space finding a first longest matching prefix, and a second LPM lookup unit performs a second LPM operation on the particular lookup value in a second search space finding a second longest matching prefix. The longer of the first and second longest matching prefixes determines the overall LPM. In one embodiment, the first search space and the second search space include non-default route prefixes with interspersed prefix lengths matching a same value, such as, but not limited to the particular lookup value (e.g., a destination address of a packet).

49. 发明申请

US20190097839A1 HARDWARE BASED PACKET REPLICATION AT TAIL END NODE 审中-公开
公开(公告)号：US20190097839A1
公开(公告)日：2019-03-28
申请号：US15714761
申请日：2017-09-25
申请人： Cisco Technology, Inc.
发明人： Swami Narayanan , Ambrish Mehta , Venkatesh Srinivasan , Raghava Sivaramu , Ayan Banerjee
IPC分类号： H04L12/46 , H04L29/06 , H04L12/04
摘要： Aspects of the disclosed technology address limitations relating to packet replication for multi-destination traffic, by providing methods for performing hardware-based replication in network infrastructure devices, such as switches. In some aspects, application specific integrated circuits (ASICs) resident in physical devices can be used to perform packet replication. Depending on implementation, a hardware-based replication process can include steps for receiving a first packet that includes a first outer header containing first address information, receiving a second packet including a second outer header containing a hardware replication flag, forwarding the first packet to all virtual tunnel endpoints (VTEPs) connected with the TOR switch, and performing hardware replication for the second packet based on the hardware replication flag to generate one or more unicast packets. Systems and machine readable media are also provided.

50. 发明授权

US10079761B2 Hierarchical routing with table management across hardware modules 有权
公开(公告)号：US10079761B2
公开(公告)日：2018-09-18
申请号：US14477753
申请日：2014-09-04
申请人： Cisco Technology, Inc.
发明人： Ayan Banerjee , Ramana Mellacheruvu , Abhishek Saxena , Vishal Jain , Luca Cafiero
IPC分类号： H04L12/741 , H04L12/58 , H04W28/12 , H04W72/00 , H04L12/721 , H04L12/801 , H04L12/761 , H04L12/745
CPC分类号： H04L45/745 , H04L45/16 , H04L45/72 , H04L45/748 , H04L47/33 , H04L51/10 , H04W28/12 , H04W72/005
摘要： Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式