公开(公告)号：US20140092738A1

公开(公告)日：2014-04-03

申请号：US13630458

申请日：2012-09-28

Applicant: JUNIPER NETWORKS, INC.

Inventor： Jagadish Grandhi ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Arun Balasubramanian ,  Bobby Vandalore

IPC: H04L12/56 ,  H04L12/24

CPC classification number: H04L45/22 ,  H04L45/24 ,  H04L45/50 ,  H04L47/125 ,  H04L47/14 ,  H04L47/52 ,  H04L47/724 ,  H04L47/824

Abstract: In general, techniques are described for maintaining load balancing after service application. A network device comprising ingress and egress forwarding components and a service card may implement the techniques. An ingress forwarding component receives a packet and, in response to a determination that the service is to be applied to the packet, updates the packet to include an ingress identifier that identifies the ingress forwarding component, thereafter transmitting the updated packet to the service card. The service card applies the service to the updated packet to generate a serviced packet and transmits the serviced packet to the ingress forwarding component identified by the ingress identifier so as to maintain load balancing of packet flows across the plurality of forwarding components. The ingress forwarding component determines a next hop to which to forward the serviced packet and the egress forwarding component forwards the serviced packet to the determined next hop.

Abstract translation: 通常，描述了在维护应用后维护负载平衡的技术。 包括入口和出口转发组件和服务卡的网络设备可以实现这些技术。 入口转发组件接收分组，并且响应于确定将应用于分组的服务，更新分组以包括标识入口转发组件的入口标识符，然后将更新的分组发送到服务卡。 服务卡将服务应用于更新的分组，以生成服务分组，并将服务分组发送到由入口标识符标识的入口转发组件，以便保持跨多个转发组件的分组流的负载均衡。 入口转发组件确定转发服务分组的下一跳，并且出口转发组件将服务分组转发到确定的下一跳。

公开(公告)号：US09036476B2

公开(公告)日：2015-05-19

申请号：US13630458

申请日：2012-09-28

Applicant: Juniper Networks, Inc.

Inventor： Jagadish Grandhi ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Arun Balasubramanian ,  Bobby Vandalore

IPC: H04L12/803 ,  H04L12/707 ,  H04L12/723 ,  H04L12/873 ,  H04L12/913 ,  H04L12/801 ,  H04L12/911

CPC classification number: H04L45/22 ,  H04L45/24 ,  H04L45/50 ,  H04L47/125 ,  H04L47/14 ,  H04L47/52 ,  H04L47/724 ,  H04L47/824

Abstract: In general, techniques are described for maintaining load balancing after service application. A network device comprising ingress and egress forwarding components and a service card may implement the techniques. An ingress forwarding component receives a packet and, in response to a determination that the service is to be applied to the packet, updates the packet to include an ingress identifier that identifies the ingress forwarding component, thereafter transmitting the updated packet to the service card. The service card applies the service to the updated packet to generate a serviced packet and transmits the serviced packet to the ingress forwarding component identified by the ingress identifier so as to maintain load balancing of packet flows across the plurality of forwarding components. The ingress forwarding component determines a next hop to which to forward the serviced packet and the egress forwarding component forwards the serviced packet to the determined next hop.

Abstract translation: 通常，描述了在维护应用后维护负载平衡的技术。 包括入口和出口转发组件和服务卡的网络设备可以实现这些技术。 入口转发组件接收分组，并且响应于确定将应用于分组的服务，更新分组以包括标识入口转发组件的入口标识符，然后将更新的分组发送到服务卡。 服务卡将服务应用于更新的分组，以生成服务分组，并将服务分组发送到由入口标识符标识的入口转发组件，以便保持跨多个转发组件的分组流的负载均衡。 入口转发组件确定转发服务分组的下一跳，并且出口转发组件将服务分组转发到确定的下一跳。