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    Shortening of service paths in service chains in a communications network
    44.
    发明授权
    Shortening of service paths in service chains in a communications network 有权
    缩短通信网络中业务链中的业务路径

    公开(公告)号：US09300585B2

    公开(公告)日：2016-03-29

    申请号：US14081772

    申请日：2013-11-15

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Surendra M. Kumar ,  Nagaraj A. Bagepalli ,  Dileep K. Devireddy ,  Abhijit Patra

    IPC: H04L12/801 ,  H04L12/721 ,  H04L12/54 ,  H04L12/26 ,  H04L12/753 ,  H04L12/715

    CPC classification number: H04L47/2475 ,  H04L12/56 ,  H04L43/026 ,  H04L45/12 ,  H04L45/38 ,  H04L45/48 ,  H04L45/64 ,  H04L47/12 ,  H04L47/17

    Abstract: A method is provided in one example embodiment and includes receiving at a network element a flow offload decision for a first service node that includes a portion of a service chain for processing a flow; recording the flow offload decision against the first service node at the network element; and propagating the flow offload decision backward on a service path to which the flow belongs if the first service node is hosted at the network element. Embodiments may also include propagating the flow offload decision backward on a service path to which the flow belongs if the flow offload decision is a propagated flow offload decision and the network element hosts a second service node that immediately precedes the service node on behalf of which the propagated flow offload decision was received and a flow offload decision has already been received by the network element from the second service node.

    Abstract translation: 在一个示例实施例中提供了一种方法，并且包括在网络元件处接收包括用于处理流的服务链的一部分的第一服务节点的流卸载决定; 记录网元上的第一服务节点的流量卸载决定; 并且如果第一服务节点驻留在网络元件处，则在流所属的服务路径上向后传播流卸载决策。 实施例还可以包括：如果流卸载决定是传播的流卸载决定，并且网络主机驻留在服务节点之前的第二服务节点，则在流所属的服务路径上向后传播流卸载决策， 接收到传播流卸载决定，网元从第二服务节点已经接收到流卸载决定。

    SYSTEM AND METHOD FOR TRANSPORTING INFORMATION TO SERVICES IN A NETWORK ENVIRONMENT
    45.
    发明申请
    SYSTEM AND METHOD FOR TRANSPORTING INFORMATION TO SERVICES IN A NETWORK ENVIRONMENT 有权
    在网络环境中向服务运输信息的系统和方法

    公开(公告)号：US20150334595A1

    公开(公告)日：2015-11-19

    申请号：US14279724

    申请日：2014-05-16

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Hendrikus G. P. Bosch ,  Ian McDowell Campbell ,  Humberto J. La Roche ,  James N. Guichard ,  Surendra M. Kumar ,  Paul Quinn ,  Alessandro Duminuco ,  Jeffrey Napper ,  Ravi Shekhar

    IPC: H04W28/02 ,  H04L12/24

    CPC classification number: H04L29/06 ,  H04L41/0896 ,  H04L41/5054 ,  H04W28/0268

    Abstract: An example method is provided in one example embodiment and may include receiving a packet for a subscriber at a gateway, wherein the gateway includes a local policy anchor for interfacing with one or more policy servers and one or more classifiers for interfacing with one or more service chains, each service chain including one or more services accessible by the gateway; determining a service chain to receive the subscriber's packet; appending the subscriber's packet with a header, wherein the header includes, at least in part, identification information for the subscriber and an Internet Protocol (IP) address for the local policy anchor; and injecting the packet including the header into the service chain determined for the subscriber.

    Abstract translation: 在一个示例性实施例中提供了示例性方法，并且可以包括在网关处接收订户的分组，其中所述网关包括用于与一个或多个策略服务器进行接口的本地策略锚点以及用于与一个或多个服务 每个服务链包括由网关可访问的一个或多个服务; 确定服务链以接收订户的分组; 用标题附加订户的分组，其中该报头至少部分地包括用户的标识信息和用于本地策略锚的因特网协议（IP）地址; 以及将包括所述头部的分组注入到为所述用户确定的服务链中。

    Architecture for agentless service insertion
    46.
    发明授权
    Architecture for agentless service insertion 有权
    无代理服务插入架构

    公开(公告)号：US09178828B2

    公开(公告)日：2015-11-03

    申请号：US13872008

    申请日：2013-04-26

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Surendra M. Kumar ,  Dileep K. Devireddy ,  Nagaraj A. Bagepalli ,  Abhijit Patra ,  Vina Ermagan ,  Fabio R. Maino ,  Victor Manuel Moreno ,  Paul Quinn

    IPC: G06F9/455 ,  H04L12/851

    CPC classification number: H04L47/2425 ,  G06F9/45533 ,  G06F2009/45562

    Abstract: An example method for service insertion in a network environment is provided in one example and includes configuring a service node by tagging one or more interface ports of a virtual switch function to which the service node is connected with one or more policy identifiers. When data traffic associated with a policy identifier is received on a virtual overlay path the virtual switch function may then terminate the virtual overlay path and direct raw data traffic to the interface port of the service node that is tagged to the policy identifier associated with the data traffic.

    Abstract translation: 在一个示例中提供了在网络环境中的服务插入的示例方法，并且包括通过标记服务节点与其连接的虚拟交换机功能的一个或多个接口端口与一个或多个策略标识符来配置服务节点。 当在虚拟覆盖路径上接收到与策略标识符相关联的数据流量时，虚拟交换机功能可以终止虚拟覆盖路径，并将原始数据流直接引导到标记为与数据相关联的策略标识符的服务节点的接口端口 交通。

    METHOD, SYSTEM, AND LOGIC FOR IN-BAND EXCHANGE OF META-INFORMATION
    47.
    发明申请
    METHOD, SYSTEM, AND LOGIC FOR IN-BAND EXCHANGE OF META-INFORMATION 审中-公开
    元信息交换的方法，系统和逻辑

    公开(公告)号：US20150271205A1

    公开(公告)日：2015-09-24

    申请号：US14521856

    申请日：2014-10-23

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Alessandro Duminuco ,  Hendrikus G. P. Bosch ,  Surendra M. Kumar ,  Humberto J. La Roche ,  Jeffrey Napper ,  Kevin D. Shatzkamer ,  Daniel G. Wing

    IPC: H04L29/06 ,  H04L29/08

    CPC classification number: H04L63/166 ,  H04L63/0281 ,  H04L63/0435 ,  H04L63/168 ,  H04L67/02 ,  H04L67/42

    Abstract: In an embodiment, a method is provided for enabling in-band data exchange between networks. The method can comprise receiving, by a first enveloping proxy located in the first network, at least one regular secure sockets layer (SSL) record for a SSL session established between a client and a server; receiving the data from a network element located in the first network; encoding the data into at least one custom SSL record; and transmitting the at least one regular SSL record and the at least one custom SSL record to an enveloping proxy. In another embodiment, a method can comprise receiving at least one regular secure sockets layer (SSL) record and at least one custom SSL record for a SSL session established between a client and a server; extracting the data from the at least one custom SSL; transmitting the at least one regular SSL record.

    Abstract translation: 在一个实施例中，提供了一种用于实现网络之间的带内数据交换的方法。 该方法可以包括通过位于第一网络中的第一包络代理接收在客户端和服务器之间建立的SSL会话的至少一个常规安全套接字层（SSL）记录; 从位于所述第一网络中的网元接收所述数据; 将数据编码成至少一个自定义SSL记录; 以及将所述至少一个常规SSL记录和所述至少一个定制SSL记录发送到包络代理。 在另一个实施例中，一种方法可以包括：在客户端和服务器之间建立的SSL会话接收至少一个常规安全套接字层（SSL）记录和至少一个定制SSL记录; 从至少一个自定义SSL提取数据; 发送所述至少一个常规SSL记录。

    SERVICE NODE ORIGINATED SERVICE CHAINS IN A NETWORK ENVIRONMENT
    48.
    发明申请
    SERVICE NODE ORIGINATED SERVICE CHAINS IN A NETWORK ENVIRONMENT 有权
    网络环境中的服务代码原始服务链

    公开(公告)号：US20150263901A1

    公开(公告)日：2015-09-17

    申请号：US14208453

    申请日：2014-03-13

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Surendra M. Kumar ,  Nagaraj A. Bagepalli ,  Abhijit Patra ,  Paul Quinn ,  James N. Guichard ,  Hendrikus G. P. Bosch

    IPC: H04L12/24

    CPC classification number: H04L45/02 ,  H04L41/08 ,  H04L41/0813 ,  H04L41/0893 ,  H04L41/0896 ,  H04L41/12 ,  H04L45/308 ,  H04L45/38

    Abstract: An example method for service node originated service chains in a network environment is provided and includes receiving a packet at a service node in a network environment that includes a plurality of service nodes and a central classifier, analyzing the packet for a service chain modification or a service chain initiation, classifying the packet at the service node to a new service chain based on the analysis, initiating the new service chain at the service node if the analysis indicates service chain initiation, and modifying an existing service chain for the packet to the new service chain if the analysis indicates service chain modification. In specific embodiments, the analysis includes applying classification logic specific to the service node. Some embodiments, service node attributes and order of service nodes in substantially all service chains configured in the network may be received from a central controller.

    Abstract translation: 提供了一种网络环境中服务节点发起的服务链的示例方法，包括在包括多个服务节点和中心分类器的网络环境中的服务节点处接收分组，分析服务链修改的分组或 服务链启动，基于分析将服务节点处的分组分类到新的服务链，如果分析指示服务链启动，则在服务节点处启动新的服务链，并将分组的现有服务链修改为新的 服务链如果分析表明服务链修改。 在具体实施例中，分析包括应用对服务节点特定的分类逻辑。 可以从中央控制器接收一些实施例，服务节点属性和在网络中配置的基本上所有业务链中的服务节点的顺序。

    DISTRIBUTED SERVICE CHAINING IN A NETWORK ENVIRONMENT
    49.
    发明申请
    DISTRIBUTED SERVICE CHAINING IN A NETWORK ENVIRONMENT 有权
    网络环境中分布式服务链

    公开(公告)号：US20150071285A1

    公开(公告)日：2015-03-12

    申请号：US14020649

    申请日：2013-09-06

    Applicant: CISCO TECHNOLOGY, INC

    Inventor： Surendra M. Kumar ,  Dileep K. Devireddy ,  Nagaraj A. Bagepalli ,  Abhijit Patra

    IPC: H04L12/741 ,  H04L12/725

    CPC classification number: H04L45/306 ,  H04L45/54

    Abstract: An example method for distributed service chaining in a network environment is provided and includes receiving a packet belonging to a service chain in a distributed virtual switch (DVS) network environment, wherein the packet includes a network service header (NSH) indicating a service path identifier identifying the service chain and a location of the packet on the service chain, evaluating a service forwarding table to determine a next service node based on the service path identifier and the location, with a plurality of different forwarding tables distributed across the DVS at a corresponding plurality of virtual Ethernet Modules (VEMs) associated with respective service nodes in the service chain, and forwarding the packet to the next service node, with substantially all services in the service chain provided sequentially to the packet in a single service loop on a service overlay.

    Abstract translation: 提供了一种在网络环境中分布式服务链接的示例方法，包括：在分布式虚拟交换机（DVS）网络环境中接收属于服务链的分组，其中分组包括指示服务路径标识符的网络服务报头（NSH） 在所述服务链上识别所述服务链和所述分组的位置，评估服务转发表以基于所述服务路径标识符和所述位置来确定下一个服务节点，具有分布在所述DVS上的相应的多个不同的转发表 多个虚拟以太网模块（VEM），其与服务链中的相应服务节点相关联，并且将分组转发到下一个服务节点，服务链中的基本上所有服务在服务覆盖中的单个服务循环中顺序地提供给分组 。

    ARCHITECTURE FOR AGENTLESS SERVICE INSERTION
    50.
    发明申请
    ARCHITECTURE FOR AGENTLESS SERVICE INSERTION 有权
    无代理服务插件架构

    公开(公告)号：US20140321459A1

    公开(公告)日：2014-10-30

    申请号：US13872008

    申请日：2013-04-26

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Surendra M. Kumar ,  Dileep K. Devireddy ,  Nagaraj A. Bagepalli ,  Abhijit Patra ,  Vina Ermagan ,  Fabio R. Maino ,  Victor Manuel Moreno ,  Paul Quinn

    IPC: H04L12/851

    CPC classification number: H04L47/2425 ,  G06F9/45533 ,  G06F2009/45562

    Abstract: An example method for service insertion in a network environment is provided in one example and includes configuring a service node by tagging one or more interface ports of a virtual switch function to which the service node is connected with one or more policy identifiers. When data traffic associated with a policy identifier is received on a virtual overlay path the virtual switch function may then terminate the virtual overlay path and direct raw data traffic to the interface port of the service node that is tagged to the policy identifier associated with the data traffic.

    Abstract translation: 在一个示例中提供了在网络环境中的服务插入的示例方法，并且包括通过标记服务节点与其连接的虚拟交换机功能的一个或多个接口端口与一个或多个策略标识符来配置服务节点。 当在虚拟覆盖路径上接收到与策略标识符相关联的数据流量时，虚拟交换机功能可以终止虚拟覆盖路径，并将原始数据流直接引导到标记为与数据相关联的策略标识符的服务节点的接口端口 交通。

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