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A method for acquiring service node capability information and a control platform

A service node and control platform technology, applied in wireless communication, digital transmission system, data exchange network, etc., can solve the problem of unable to support OpenFlow controller's ability to perceive information of non-OpenFlow switches, and achieve flexible and efficient provision, flexible and efficient network effect of service

Active Publication Date: 2019-03-15
旭瑞亿(江苏)智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a method for obtaining service node capability information and a control platform to solve the defect that the existing OpenFlow capability negotiation function cannot support the OpenFlow controller's information perception capability for non-OpenFlow switches (such as service nodes)

Method used

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  • A method for acquiring service node capability information and a control platform
  • A method for acquiring service node capability information and a control platform
  • A method for acquiring service node capability information and a control platform

Examples

Experimental program
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Effect test

Embodiment 1

[0092] Such as Figure 4 As shown in , the service node reports the architecture of capability attributes to the control platform. as the picture shows:

[0093] The control platform includes OpenFlow controllers and OpenFlow configuration points;

[0094] The control platform obtains business application requirements from the Application (application server);

[0095] The OpenFlow protocol is used for communication between the control platform and the OpenFlow switch;

[0096] Define a new interface between the control platform and the service node for capability negotiation, status notification, etc.;

[0097] The service node is pre-configured with a capability description file, such as a file based on XML Schema;

[0098] The XML example of the service node pre-configured capability description file is as follows:

[0099]

[0100]

[0101]

[0102] The control platform and the service node communicate through control protocols (such as OF-Config protocol, Op...

Embodiment 2

[0107] Figure 5 It is a structure diagram of the control platform obtaining the capability attribute of the service node through the network management system according to the present invention. as the picture shows:

[0108] The control platform includes OpenFlow controllers and OpenFlow configuration points;

[0109] The control platform obtains business application requirements from Application;

[0110] The OpenFlow protocol is used for communication between the control platform and the OpenFlow switch;

[0111] The network management system collects the network topology connection and capability attributes of each service node, and notifies the control platform;

[0112] The control platform forms a network service view based on the network topology connection and capability attributes of the service nodes (including the network topology connection between the service node and the OpenFlow switch and the service attributes of each node);

[0113] The control platform...

Embodiment 3

[0117] Figure 6 It is the process of obtaining the service node capability attribute according to the OpenFlow configuration point of the present invention; before starting this process, three conditions need to be met first, first, there is an interface between the OpenFlow configuration point and the service node and through the OF-Config protocol (OF-Config The Config protocol uses the NETCONF XML data format to define the language) for communication, such as capability negotiation, status notification, and so on. Second, the service node needs to pre-configure the capability description file, such as a file based on XML Schema; third, extend the OF-Config protocol, and define a data model describing the capability attribute of the service node under its framework; the following are the specific steps:

[0118] (1) The OpenFlow configuration point sends a NETCONF_Hello message to the service node;

[0119] (2) The service node sends a NETCONF_Hello message to the OpenFlow...

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Abstract

Disclosed are a method of obtaining capacity information of a serving node, and a control platform. The obtaining method comprises: a control platform obtaining information about a serving node through an interface between the control platform and the serving node, or the control platform receiving the information about the serving node that is sent through a north bound interface by a service control platform or a device with a network management function, the information about the serving node comprising an identity and a capability attribute of the serving node, and the control platform comprising an OpenFlow controller or an OpenFlow configuration point. By using the present invention, an OpenFlow control plane not only can master a network topology, which manages and controls an SDN network, of the OpenFlow control plane, but also can learn a serving node attached to the network and capability information of the serving node, and further can perform dynamic service chain orchestration as required, to provide a network service more flexibly and highly-efficiently.

Description

technical field [0001] The present invention relates to the field of SDN architecture network communication, and in particular, relates to a method for acquiring service node capability information and a control platform. Background technique [0002] As the current network exposes more and more disadvantages and people's demand for network performance is getting higher and higher, researchers have to add many complex functions to the architecture of routers, such as OSPF (Open Shortest Path First, Open Shortest Path First, Shortest path first), BGP (border gateway protocol, border gateway protocol), multicast, differentiated services, traffic engineering, NAT (Network Address Translation, network address translation), firewall, MPLS (Multi-Protocol Label Switching, multi-protocol label switching), etc. Wait. This makes switching devices such as routers more and more bloated and the space for performance improvement is getting smaller and smaller. [0003] However, quite d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70
CPCH04W24/02
Inventor 梁乾灯尤建洁王寒凝
Owner 旭瑞亿(江苏)智能科技有限公司
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