公开(公告)号：US10003495B1

公开(公告)日：2018-06-19

申请号：US14492008

申请日：2014-09-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samar Sharma ,  Mitali Parthasarathy ,  Avni Baveja

IPC: G06F15/177 ,  H04L12/24 ,  H04L29/08

CPC classification number: H04L41/0806 ,  H04L67/34

Abstract: An example method is provided and includes configuring a service on a network element; associating a directly connected port with the service to create a port channel between the network element and a directly connected service appliance, the port channel comprising a plurality of member ports; performing an auto-discovery process for each of the member ports; and, upon successful completion of the performing, indicating on the network element that the service appliance is operational. In certain embodiments, the network element includes an intelligent service card manager module (“ISCM”) that forms part of a Remote Integrated Service Engine (“RISE”) element with a corresponding intelligent service card client module (“ISCC”) installed on the service appliance. The method may further include, upon unsuccessful completion of the auto-discovery process, repeating the auto-discovery process.

公开(公告)号：US09882802B2

公开(公告)日：2018-01-30

申请号：US14979789

申请日：2015-12-28

Applicant: Cisco Technology, Inc.

Inventor： Ankur Goyal ,  Samar Sharma ,  Manuwela Kanade

IPC: H04W4/00 ,  H04L12/751 ,  H04L12/24 ,  H04L12/931 ,  H04L12/28

CPC classification number: H04L45/02 ,  H04L12/2859 ,  H04L41/0893 ,  H04L49/65 ,  H04L49/70 ,  Y02B70/30 ,  Y02D30/30

Abstract: In some embodiments, a virtual device context (vDC) domain may be advertised to other network devices. If at least a partition of each device is determined to belong to the same vDC domain, the network interface communicating with the at least one device may be activated.

公开(公告)号：US09825865B1

公开(公告)日：2017-11-21

申请号：US14696200

申请日：2015-04-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samar Sharma ,  Mouli Vytla ,  Nikhil Dhar

IPC: H04L12/26 ,  H04L12/803 ,  H04L12/733

CPC classification number: H04L47/125 ,  H04L45/20 ,  H04L45/24

Abstract: In one embodiment, an indication of a plurality of network nodes and load balancing criteria is received. A plurality of forwarding entries are created, wherein a forwarding entry of the plurality of forwarding entries is based upon the load balancing criteria and corresponds to a network node of the plurality of network nodes. A network element applies the plurality of forwarding entries to data packets to load balance the data packets among the plurality of network nodes. A plurality of counts are tracked, wherein each count corresponds to at least one forwarding entry of the plurality of forwarding entries and represents the number of times the corresponding at least one forwarding entry is used to redirect a data packet.

公开(公告)号：US20160337244A1

公开(公告)日：2016-11-17

申请号：US14835435

申请日：2015-08-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Avni Baveja ,  Samar Sharma ,  Mitali Parthasarathy ,  Ashish Purushottam Attarde

IPC: H04L12/803

CPC classification number: H04L47/125 ,  H04L67/1002

Abstract: In one embodiment a forwarding policy from a first network node coupled to a network element is received. The forwarding policy specifies an address of a second network node coupled to the network element. A plurality of ports of the network element are identified, wherein the second network node is accessible from the network element through each of the plurality of ports. The forwarding policy is applied to the plurality of ports of the network element. Network traffic received at a port of the plurality of ports from the second network node is forwarded to the first network node.

Abstract translation: 在一个实施例中，接收来自耦合到网元的第一网络节点的转发策略。 转发策略指定耦合到网络元件的第二网络节点的地址。 识别出网络元件的多个端口，其中通过多个端口中的每一个可以从网络单元访问第二网络节点。 转发策略应用于网元的多个端口。 从第二网络节点在多个端口的端口处接收的网络流量被转发到第一网络节点。

公开(公告)号：US20160330117A1

公开(公告)日：2016-11-10

申请号：US14876556

申请日：2015-10-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Rajendra Kumar Thirumurthi ,  Samar Sharma ,  Puneet Kumar ,  Mouli Vytla

IPC: H04L12/741 ,  H04L12/721 ,  H04L29/12 ,  H04L29/06

Abstract: Embodiments include receiving configuration information including a match criterion for packets received at a network device in a network and a pool of layer 3 addresses associated with a set of servers in the network, resolving layer 2 destination addresses based on the layer 3 addresses of the servers, and programming a hardware layer of the network device based, at least in part, on the match criterion, the pool of layer 3 addresses, and the layer 2 destination addresses. Specific embodiments include configuring a policy to indicate that packets from an external source are to be forwarded to a server of the set of servers. Further embodiments include receiving a packet at the network device, and matching the packet to the pool of layer 3 addresses and the resolved layer 2 addresses based, at least in part, on the match criterion programmed in the hardware layer.

Abstract translation: 实施例包括接收包括在网络中的网络设备处接收到的分组的匹配标准的配置信息和与网络中的一组服务器相关联的层3地址池，基于服务器的第3层地址来解析层2目的地地址 并且至少部分地基于匹配标准，第3层地址池和第2层目的地址来编程网络设备的硬件层。 具体实施例包括配置策略以指示来自外部源的分组将被转发到该组服务器的服务器。 另外的实施例包括在网络设备处接收分组，并且至少部分地基于在硬件层中编程的匹配准则，将分组匹配到层3地址池和解决的层2地址。

公开(公告)号：US09444744B1

公开(公告)日：2016-09-13

申请号：US14696209

申请日：2015-04-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samar Sharma ,  Mouli Vytla

IPC: H04L12/26 ,  H04L12/803 ,  H04L29/08 ,  H04L12/911

CPC classification number: H04L47/125 ,  H04L47/726 ,  H04L63/101 ,  H04L67/1002

Abstract: In one embodiment, an indication of a plurality of network nodes, load balancing criteria, and one or more access control list (ACL) entries are received. A plurality of forwarding entries are created, a forwarding entry of the plurality of forwarding entries based upon an ACL entry and the load balancing criteria and corresponding to a network node of the plurality of network nodes. A network element applies the plurality of forwarding entries to network traffic to selectively load balance the network traffic, wherein network traffic meeting the load balancing criteria and permitted by the one or more ACL entries is load balanced among the plurality of network nodes.

Abstract translation: 在一个实施例中，接收多个网络节点的指示，负载平衡准则和一个或多个访问控制列表（ACL）条目。 创建多个转发条目，根据ACL条目和负载均衡标准，多个转发条目的转发条目，并对应于多个网络节点的网络节点。 网元将多个转发条目应用于网络流量，以选择性地负载平衡网络流量，其中满足负载均衡准则并由一个或多个ACL条目允许的网络流量在多个网络节点之间进行负载平衡。

公开(公告)号：US09432294B1

公开(公告)日：2016-08-30

申请号：US14687712

申请日：2015-04-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samar Sharma ,  Mouli Vytla ,  Rajendra Kumar Thirumurthi ,  Puneet Kumar

IPC: H04L12/803 ,  H04L29/06 ,  H04L12/935 ,  H04L12/743

CPC classification number: H04L47/125 ,  H04L45/54 ,  H04L45/7457 ,  H04L67/1002

Abstract: In one embodiment a packet of data is received at a network element. At least one field is parsed from the packet of data. A forwarding entry is identified from a plurality of forwarding entries based on the at least one field. The forwarding entry of the plurality of forwarding entries is formed by merging information from at least one load balancing entry and at least one access control list (ACL) entry. The data packet is forwarded through a port of the network element in accordance with the identified forwarding entry.

Abstract translation: 在一个实施例中，在网络元件处接收数据包。 从数据包解析至少一个字段。 基于至少一个字段从多个转发条目识别转发条目。 通过合并来自至少一个负载平衡条目和至少一个访问控制列表（ACL）条目的信息来形成多个转发条目的转发条目。 根据所识别的转发条目，数据分组通过网元的端口转发。

公开(公告)号：US20150237170A1

公开(公告)日：2015-08-20

申请号：US14704584

申请日：2015-05-05

Applicant: Cisco Technology, Inc.

Inventor： Chao Feng ,  Nitesh G. Soni ,  Pramod Cherukumilli ,  Diheng Qu ,  Suresh Kumar Nalluru ,  Samar Sharma

IPC: H04L29/06 ,  H04L7/00 ,  H04L12/721 ,  H04L29/08

CPC classification number: H04L67/42 ,  H04L7/0008 ,  H04L12/4641 ,  H04L45/38 ,  H04L67/10 ,  H04L67/1027

Abstract: Methods and apparatus for providing one-arm node clustering using a port channel are provided herein. An example application node may be communicatively connected to at least one application node, and the application node may be connected to a network through a port channel. The application node may include: a link included in the port channel for accommodating the network data being communicated between the remote client and server; and a processor configured to send/receive a cluster control packet to/from the at least one application node through the link included in the port channel.

Abstract translation: 本文提供了使用端口通道提供单臂节点聚类的方法和装置。 示例性应用节点可以通信地连接到至少一个应用节点，并且应用节点可以通过端口信道连接到网络。 应用节点可以包括：包括在端口信道中的链路，用于容纳在远程客户端和服务器之间传送的网络数据; 以及处理器，被配置为通过包括在端口信道中的链路向/从至少一个应用节点发送/接收集群控制分组。

公开(公告)号：US11843658B2

公开(公告)日：2023-12-12

申请号：US17471047

申请日：2021-09-09

Applicant: Cisco Technology, Inc.

Inventor： Samar Sharma ,  Mouli Vytla ,  Rajendra Kumar Thirumurthi

IPC: H04L67/1001 ,  H04L12/00 ,  H04L67/1025 ,  H04L61/00 ,  H04L67/1023

CPC classification number: H04L67/1001 ,  H04L12/00 ,  H04L61/00 ,  H04L67/1023 ,  H04L67/1025

Abstract: In one embodiment, load balancing criteria and an indication of a plurality of network nodes is received. A plurality of forwarding entries are created based on the load balancing criteria and the indication of the plurality of nodes. A content addressable memory of a network element is programmed with the plurality of forwarding entries. The network element selectively load balances network traffic by applying the plurality of forwarding entries to the network traffic, wherein network traffic meeting the load balancing criteria is load balanced among the plurality of network nodes.

公开(公告)号：US20220345422A1

公开(公告)日：2022-10-27

申请号：US17862043

申请日：2022-07-11

Applicant: Cisco Technology, Inc.

Inventor： Rajendra Kumar Thirumurthi ,  Samar Sharma ,  Mouli Vytla

IPC: H04L49/50 ,  H04L47/726 ,  H04L47/125

Abstract: In an example, a network switch is configured to natively act as a high-speed load balancer. Numerous load-balancing techniques may be used, including one that bases the traffic “bucket” on a source IP address of an incoming packet. This particular technique provides a network administrator a powerful tool for shaping network traffic. For example, by assigning certain classes of computers on the network particular IP addresses, the network administrator can ensure that the traffic is load balanced in a desirable fashion. To further increase flexibility, the network administrator may apply a bit mask to the IP address, and expose only a portion, selected from a desired octet of the address.