Method for acquiring network equipment forwarding state in software defined network

A software-defined network and network equipment technology, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve the problem of not being able to represent the forwarding status of network equipment, and achieve the effect of avoiding network bandwidth overhead

Inactive Publication Date: 2016-03-16
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, only path information cannot represent the forwarding status of the entire network device

Method used

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  • Method for acquiring network equipment forwarding state in software defined network
  • Method for acquiring network equipment forwarding state in software defined network
  • Method for acquiring network equipment forwarding state in software defined network

Examples

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] The present invention provides a method for obtaining the forwarding status of network equipment in a software-defined network, such as figure 1 Shown, including:

[0032] (1) Configur...

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Abstract

The invention relates to a method for acquiring a network equipment forwarding state in a software defined network. The method comprises the following steps: step (1), configuring a probe packet which carries an appointed a VLAN (Virtual Local Area Network) label; step (2), distinguishing a normal data packet and the probe packet through a first flow table in a plurality of flow tables; and step (3), adding an extra instruction for a flow table entry of a flow table except the first flow table in the plurality of flow tables. The invention provides the method for acquiring the network equipment forwarding state in the software defined network, the true forwarding state of network equipment can be acquired simply and effectively by acquiring and carrying the identification of each flow table entry in the network equipment, meanwhile, almost no extra bandwidth is needed to bear the probe packet that carries information.

Description

Technical field [0001] The invention relates to the technical field of software-defined networks, in particular to a method for obtaining the forwarding status of network equipment in a software-defined network. Background technique [0002] The forwarding state of a network device refers to how the network device processes network packets, including forwarding and routing, adding, deleting, and modifying certain fields in the packet header; the specific processing method is through a series of Rules are implemented, such as Layer 2 forwarding rules (FIB), IP forwarding rules (including modifying ports, check values, TTL, etc.), VLAN tag operations, ACLs rules, and so on. Therefore, to obtain the forwarding status of a network device is to obtain all the "real" rules on the network device. The "real" emphasized here is that the network device may fail to execute the nominal rules due to software and hardware failures or firmware failures. For example, a rule that modifies the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/715H04L12/751H04L12/931H04L12/937H04L45/02
CPCH04L45/02H04L45/04H04L49/253H04L49/70H04L49/354
Inventor 刘川黄辉张刚喻强虞跃郭经红梁云黄在朝赵宇粟张鹏飞朱惠康金耀辉
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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