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Configuration and implementation method of operation maintenance management function and forwarding device

A technology of forwarding equipment and configuration method, applied in the direction of digital transmission system, data exchange network, electrical components, etc., can solve the problem of low real-time requirements

Active Publication Date: 2020-11-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this mechanism is suitable for user-initiated and on-demand detection scenarios with low real-time requirements; it is not suitable for periodic and fast sending and receiving of messages for protection switching or other purposes, such as MPLS-TP (ITU -T and other international standards for packet transmission technology standards) standards require support for fast CCM (connectivity detection messages) sent and received periodically in 3.33 milliseconds

Method used

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  • Configuration and implementation method of operation maintenance management function and forwarding device
  • Configuration and implementation method of operation maintenance management function and forwarding device
  • Configuration and implementation method of operation maintenance management function and forwarding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0155] This embodiment is based on the existing Openflow protocol, expands the message type of the protocol header, and completes the OAM function configuration management of the bidirectional / unidirectional forwarding path through the newly defined OAM configuration message. The network protocol layer (also referred to as layer network in some standards) where the forwarding path (also referred to as transmission path or transmission path in some standards) is located is one of the following network protocol layers:

[0156] Physical layer, VLAN layer, IP layer and business layer of Ethernet;

[0157] Tunnel layer, pseudowire layer and service layer of multi-protocol label switching MPLS network or multi-protocol label switching-transport architecture MPLS-TP network;

[0158] The physical layer, section layer and ODUk (Optical Channel Data Unit)-layer of the optical transport network OTN;

[0159] The physical layer, optical transmission section layer, optical multiplexing ...

Embodiment 2

[0208] This embodiment relates to how to implement the OAM function after the forwarding device at one end of the forwarding path receives the OAM configuration message. The network protocol layer where the forwarding path is located can be one of the following network protocol layers:

[0209] Physical layer, VLAN layer, IP layer and business layer of Ethernet;

[0210] Tunnel layer, pseudowire layer and service layer of multi-protocol label switching MPLS network or multi-protocol label switching-transport architecture MPLS-TP network;

[0211] The physical layer, section layer and ODUk layer of the optical transport network OTN;

[0212] The physical layer, optical transmission section layer, optical multiplexing section layer, optical channel layer and regeneration section layer of wavelength division multiplexing WDM network.

[0213] The foregoing protocol layers are not exhaustive, for example, they may also be various protocol layers of a Provider Backbone Bridge (PBB...

application example 1

[0273] This example uses the Controller to initiate a new bidirectional path A-Z (that is, from the A port of Forwarder NE1 to the Z port of Forwarder NE2, NE1 and NE2 are the exemplary device names of Forwarder) as an example to illustrate this implementation. example implementation.

[0274] Concrete embodiment comprises the steps:

[0275] Step 1. The Controller initiates the configuration of the new bidirectional path A-Z fast OAM, constructs the first OAM configuration message and the second OAM configuration message, and sends the two OAM configuration messages to Forwarder NE1 and Forwarder NE2 respectively through the Openflow channel;

[0276] The general members of the Openflow protocol header are shown in the following table:

[0277]

[0278]

[0279] Both the first OAM configuration message and the second OAM configuration message are Openflow messages, and by extending the message type (expressed by the value of the type member) carried by the Openflow pro...

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Abstract

A configuration and implementation method of an operation, maintenance and management function, and a forwarding device, wherein a controller initiates the configuration of a forwarding path operation, maintenance and management OAM function, and constructs an OAM configuration message, wherein the OAM configuration message carries OAM configuration information; the controller Send the OAM configuration message to the forwarding device at the head end point and / or the forwarding device at the end point of the forwarding path through the Openflow channel. The forwarding device at one end of the forwarding path receives the Openflow message through the Openflow channel and parses the Openflow protocol header; the forwarding device analyzes the OAM configuration message if it determines that the Openflow message is an OAM configuration message according to the analysis result , acquire the OAM configuration information therein and perform corresponding processing. The present invention can realize the sending and receiving of the OAM message at the Forwarder equipment level according to the requirements of the standard.

Description

technical field [0001] The present invention relates to an operation, maintenance and management (OAM: Operation, administration and maintenance) function, and more specifically, to a method for realizing the operation, maintenance and management function and a corresponding forwarding device. Background technique [0002] Software defined network (SDN for short) is a research hotspot in the field of communication in recent years. The international standard organization ONF (Open networking forum, ONF for short) drafts SDN-related standard recommendations, focusing on the decoupling between the controller (CP) and the forwarding device (Forwarder), and standardizing the interface between the controller and the forwarding plane. It is convenient for the joint networking of controllers and forwarding devices from different manufacturers. [0003] The ONF has released the OpenFlow SwitchSpecification, the interface specification between the controller and the forwarding plane....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/00H04L41/0823H04L43/026H04L43/04H04L41/0213H04L41/0895H04L41/40H04L41/342H04L43/20
Inventor 孙德胜赵福川
Owner ZTE CORP