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Method, network equipment and service card for computer network

A technology of computer network and network equipment, which is applied in the field of computer network and can solve problems such as disrupting packet forwarding

Active Publication Date: 2017-07-11
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, application of these services may disrupt packet forwarding according to WECMP, whereby routers do not perform proper load balancing to distribute packets of flows according to defined weights

Method used

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  • Method, network equipment and service card for computer network
  • Method, network equipment and service card for computer network
  • Method, network equipment and service card for computer network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 is a block diagram illustrating an example network system 2 that performs post-service application load balancing in accordance with the techniques described in this disclosure. Network system 2 includes network 6 that includes routers 10A-10E ("routers 10") that route network packets received from source devices 12A-12N ("source devices 12") toward destination device 14. . Network 6 may include a public network, such as the Internet, a private network, such as those owned and operated by a business or service provider, or a combination of both public and private networks. As a result, network 6 may alternatively be referred to herein as a service provider (SP) network. Network 6 may include one or more wide area networks (WANs), local area networks (LANs), virtual local area networks (VLANs), virtual private networks (VPNs), and / or other types of networks.

[0019] In some examples, network 6 may be an Internet Protocol network in which router 10 uses IP fo...

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PUM

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Abstract

In general, techniques for maintaining load balancing after service applications are described. A network device including an ingress forwarding component and an egress forwarding component and a service card may implement the technique. The ingress forwarding component receives the packet, and in response to a determination that a service is to be applied to the packet, updates the packet to include an ingress identifier identifying the ingress forwarding component, and thereafter transmits 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 the packet flow across the plurality of forwarding components . The ingress forwarding component determines a next hop to forward the serviced packet to, and the egress forwarding component forwards the serviced packet to the determined next hop.

Description

technical field [0001] This disclosure relates to computer networks, and more particularly to load balancing within computer networks. Background technique [0002] A computer network is a collection of interconnected computing devices capable of exchanging data and sharing resources. In a packet-based network, computing devices communicate data by dividing the data into small chunks called packets, which are individually routed across the network from a source device to a destination device. The destination device extracts the data from the packets and assembles the data into its original form. Dividing the data into packets enables the source device to retransmit only those individual packets that may have been lost during transmission. [0003] Network routers maintain routing information, which describes available routes through the network. When a packet is received, a router examines the information within the packet and forwards the packet based on the routing info...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/803H04L45/24H04L45/50H04L47/52H04L47/724
CPCH04L45/50H04L47/52H04L47/125H04L47/724H04L47/824H04L45/24H04L45/22H04W28/02H04W8/04
Inventor J·格兰希G·克里施纳A·萨斯雅纳拉雅纳A·巴拉萨布拉玛尼安B·万达洛瑞
Owner JUMIPER NETWORKS INC