公开(公告)号：US10374952B2

公开(公告)日：2019-08-06

申请号：US15792615

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Sameer Merchant ,  Ramana Mellacheruvu ,  Ramesh V. N. Ponnapalli ,  Srinivasan Ramabadran

IPC: H04L12/745 ,  H04L12/741 ,  H04L12/58 ,  H04W28/12 ,  H04W72/00 ,  H04L12/721 ,  H04L12/801 ,  H04L12/761

Abstract: Various embodiments are disclosed for increasing Layer-3 LPM (longest prefix match) routing database in a network platform. In some embodiments, chipsets in fabric modules (FMs) can be partitioned into multiple banks. Network traffic can be directed towards a corresponding bank in the FMs by using a LPM table on a line card (LC). Entries in the LPM table on the LC can be programmed either statically or dynamically based upon LPM routes that are dynamically learned.

公开(公告)号：US20190229938A1

公开(公告)日：2019-07-25

申请号：US16372148

申请日：2019-04-01

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Batchu

IPC: H04L12/18 ,  H04L12/931 ,  H04L12/741

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.

公开(公告)号：US10284472B2

公开(公告)日：2019-05-07

申请号：US15414589

申请日：2017-01-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Nataraj Bacthu ,  Ayan Banerjee ,  Raghava Sivaramu ,  Ankan Ghosh

IPC: H04L12/745 ,  H04L12/743

Abstract: In one embodiment, a method includes receiving a request to add a prefix to memory for a route lookup at a forwarding device, the memory comprising a plurality of pivot tiles for storing pivot entries, each of the pivot entries comprising a plurality of prefixes and a pointer to a trie index, searching at the forwarding device, a dynamic pool of the pivot tiles based on a base-width associated with the prefix, allocating at least a portion of the pivot tile to the base-width and creating a pivot entry for the prefix and other prefixes with a corresponding base-width, and dynamically updating prefixes stored on the pivot tiles based on route changes to optimize storage of prefixes on the pivot tiles. An apparatus and logic are also disclosed herein.

公开(公告)号：US10142163B2

公开(公告)日：2018-11-27

申请号：US15063288

申请日：2016-03-07

Applicant: Cisco Technology, Inc.

Inventor： Vengada Prasad Govindan ,  Ayan Banerjee ,  Mehak Mahajan ,  Abhayraj Kuldip Gidwani ,  Mudigonda Jwala Mallik

IPC: H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/24 ,  H04L12/46

Abstract: Disclosed are systems, methods, and computer-readable storage media for synchronizing the secondary vPC node to the primary vPC node in a BFD protocol over a VxLAN channel with a remote node. In some embodiments of the present technology a primary vPC node can receive a packet from the remote node. The primary vPC node can then determine the packet includes either a MAC address corresponding to the primary vPC node or a secondary vPC node, and at least one inner packet identifier. Additionally, the primary networking switch can identify an access control list (ACL) entry from a set of ACL entries based on the at least one inner packet identifier. Subsequently, based on the ACL entry, the primary vPC node can generate a copy of the packet. After which, the primary vPC node can transmit the packet to the secondary vPC node.

公开(公告)号：US20170012858A1

公开(公告)日：2017-01-12

申请号：US15273798

申请日：2016-09-23

Applicant: Cisco Technology, Inc.

Inventor： Sourabh Jain ,  Varun Shah ,  Ayan Banerjee

IPC: H04L12/733 ,  H04W40/02 ,  H04L12/753 ,  H04L12/761

CPC classification number: H04L45/122 ,  H04L45/12 ,  H04L45/16 ,  H04L45/48 ,  H04W40/02

Abstract: The proposed methodology enables finding the most efficient roots in the network to carry multicast traffic, while further providing a theoretical basis for such selection. It guarantees the minimum expected delivery cost for multicast frames in the absence of any knowledge about the source and receivers.

Abstract translation: 所提出的方法使得能够在网络中找到最有效的根以携带多播流量，同时为这种选择提供理论依据。 在没有任何关于源和接收器的知识的情况下，它保证多播帧的最小预期传送成本。

公开(公告)号：US20150003450A1

公开(公告)日：2015-01-01

申请号：US13930680

申请日：2013-06-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samer Salam ,  Ali Sajassi ,  Ayan Banerjee ,  Sami Boutros

IPC: H04L12/18

CPC classification number: H04L12/1836

Abstract: In one embodiment, a particular PE device of a plurality of multi-homing PE devices between a core network and a local network determines a subset of traffic for which the particular PE device is responsible. The particular PE also establishes, with itself as root, a multicast tree within the local network for underlay multicast groups. Traffic received at the particular PE from the core network is admitted into the local network only if the core traffic corresponds to the subset of traffic for which the particular PE device is responsible (and mapped into one of the underlay multicast groups for which the particular PE device is the root). Also, multicast traffic received at the particular PE from the local network is forwarded into the core network only if the multicast traffic corresponds to the subset of traffic for which the particular PE device is responsible.

Abstract translation: 在一个实施例中，核心网络和本地网络之间的多个多归属PE设备的特定PE设备确定特定PE设备负责的流量子集。 特定的PE还以本身为根建立本地网络内的组播树，用于底层组播组。 只有当核心流量对应于特定PE设备负责的流量子集（并映射到特定PE的底层多播组中的一个）时，才从核心网络在特定PE处接收到的流量被允许进入本地网络 设备是根）。 此外，仅当组播流量对应于特定PE设备所负责的业务子集时，才将来自本地网络的特定PE处接收到的组播流量转发到核心网络。

公开(公告)号：US08842517B2

公开(公告)日：2014-09-23

申请号：US13629600

申请日：2012-09-27

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Veena Raghavan ,  Abhay Roy

IPC: H04L12/26

CPC classification number: H04L43/16 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/28

Abstract: A method is provided in one example embodiment and includes receiving a first pseudo-node identifier associated with a first network node via a network. The first pseudo-node identifier is generated by the first network node in a first designated intermediate system (DIS) operation. The method further includes detecting a loss of connectivity to the first network node, and receiving a second pseudo-node identifier associated with a second network node via the network. The second pseudo-node identifier is generated by the second network node in a second DIS operation. The method further includes executing a first network path determination operation using the first pseudo-node identifier and the second pseudo-node identifier when an elapsed time between the detecting of the loss of connectivity with the first network node and the executing of the first network path determination operation is within a predetermined threshold.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括经由网络接收与第一网络节点相关联的第一伪节点标识符。 第一伪节点标识符由第一指定中间系统（DIS）操作中的第一网络节点生成。 该方法还包括检测到与第一网络节点的连接性的损失，以及经由网络接收与第二网络节点相关联的第二伪节点标识符。 在第二DIS操作中，由第二网络节点生成第二伪节点标识符。 该方法还包括当检测到与第一网络节点的连接性的损失和第一网络路径的执行之间的经过时间时，使用第一伪节点标识符和第二伪节点标识符执行第一网络路径确定操作 确定操作在预定阈值内。

公开(公告)号：US20240394107A1

公开(公告)日：2024-11-28

申请号：US18324000

申请日：2023-05-25

Applicant: Cisco Technology, Inc.

Inventor： Carlos Pignataro ,  Nagendra Kumar Nainar ,  Marcelo Yannuzzi ,  Ayan Banerjee

IPC: G06F9/50 ,  G06F9/445 ,  G06F11/34

Abstract: Devices, systems, methods, and processes for sustainably reallocating resources based on within a plurality of computing nodes of a network, such as a managed network are described herein. Each computing node may be configured to transmit infrastructure data to an infrastructure monitor or ecosystem management tool. Additional sustainability data may also be accessed either internally or externally. The infrastructure data and sustainability data may be utilized to generate one or more scores that can be evaluated against each other. These scores may be configured to reflect various conditions or facts about the computing nodes including the overall sustainability. In order to increase sustainability levels, a variety of different resource configurations can be generated and evaluated against each other and the current configuration. When a more sustainable configuration is located, it may be applied by moving resources from originating computing nodes to destination computing nodes to achieve increased sustainability goals.

公开(公告)号：US11824793B2

公开(公告)日：2023-11-21

申请号：US18107343

申请日：2023-02-08

Applicant: Cisco Technology, Inc.

Inventor： Chakradhar Kar ,  Sagar Borikar ,  Ramesh Sivakolundu ,  Ayan Banerjee ,  Anant Thakar

IPC: H04L47/722 ,  H04L67/568 ,  H04L69/08

CPC classification number: H04L47/722 ,  H04L67/568 ,  H04L69/08

Abstract: 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.

公开(公告)号：US20230188474A1

公开(公告)日：2023-06-15

申请号：US18107343

申请日：2023-02-08

Applicant: Cisco Technology, Inc.

Inventor： Chakradhar Kar ,  Sagar Borikar ,  Ramesh Sivakolundu ,  Ayan Banerjee ,  Anant Thakar

IPC: H04L47/722 ,  H04L67/568 ,  H04L69/08

CPC classification number: H04L47/722 ,  H04L67/568 ,  H04L69/08

Abstract: 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.