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Control method and device for forwarding paths and control equipment

A technology for forwarding paths and controlling equipment, which is applied in digital transmission systems, electrical components, transmission systems, etc., and can solve problems such as cumbersome business operations, unguaranteed configuration consistency, and network-wide problems

Inactive Publication Date: 2018-05-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if you want to support new policies, you have to go through the lengthy process of traditional network requirements, upgrade equipment, etc., and configure policies for multiple routers. The consistency of configuration cannot be guaranteed. You must first determine a clear networking configuration, and then gradually Manually break down the configuration given to each router, then configure those routers for verification
In the absence of a network-wide verification, business operations are extremely cumbersome. What's more, even if you only change the BGP routing policy of a router, you have to take a lot of risks. A wrong policy configuration may cause problems in the entire network.

Method used

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  • Control method and device for forwarding paths and control equipment
  • Control method and device for forwarding paths and control equipment
  • Control method and device for forwarding paths and control equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0054] In the first embodiment of the present invention, a method for controlling a forwarding path, such as figure 1 shown, including the following specific steps:

[0055] Step S101, the control device determines the available forwarding path of the service in the management domain according to the network topology information in its own management domain and the path calculation constraint information of the service;

[0056] Specifically, the method of obtaining network topology information in the device management domain is controlled, including:

[0057] The control device collects network topology information in the management domain of the control device through the BGP-LS protocol.

[0058] The path calculation constraint information of the service includes: service bandwidth, service delay, forwarding equipment that the service must pass through, and forwarding equipment that the service excludes.

[0059] In step S101, on the basis of obtaining the network topology ...

no. 2 example

[0070] The second embodiment of the present invention is a method for controlling a forwarding path. The method described in this embodiment is substantially the same as that in the first embodiment, the difference is that, as figure 2 As shown, the method in this embodiment also includes the following specific steps:

[0071] Step S201, the control device determines the available forwarding path of the service in the management domain according to the network topology information in its own management domain and the path calculation constraint information of the service;

[0072] Step S202, the control device receives the scheduling policy set on the scheduler through its own northbound interface;

[0073] Specifically, the scheduling strategy includes one of the following:

[0074] 1) Determine the active forwarding path and the standby forwarding path according to the IGP Cost of each available forwarding path of the service in the management domain.

[0075] 2) determin...

no. 3 example

[0081] The third embodiment of the present invention is a method for controlling a forwarding path. The method in this embodiment is substantially the same as that in the second embodiment. The difference is that in the method in this embodiment, the scheduling policy includes how to determine In addition to the active forwarding device and the standby forwarding device, it also includes: when the traffic of at least any forwarding device in the active forwarding path exceeds a set flow threshold, switching between the active forwarding device and the standby forwarding device is performed.

[0082] In the embodiment of the present invention, since the control device is used to manage the network, the effect of separating the control plane and the forwarding plane can be achieved. When the service traffic on some forwarding paths observed by the operator's network maintenance personnel is very large, and the traffic on other paths is relatively small, it is hoped that the traff...

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Abstract

The invention provides a control method and device for forwarding paths and control equipment. The method comprises the steps that the control equipment determines out available forwarding paths of aservice in a management domain according to network topology information in the management domain of the control equipment and computing way constraint information of the service; the control equipment selects out the main forwarding path and the backup forwarding paths from the available forwarding paths according to a scheduling strategy; and the control equipment conducts routing strategy configuration on related forwarding equipment in the management domain according to the selected main forwarding path and backup forwarding paths. According to the control method and device, complex and variable computing strategies are all centralized to a controller, a bottom-layer distributed control network from the control equipment to the various forwarding equipment is retained, various protocols and IP forwarding engineering in the existing network are compatible, and the forwarding equipment can complete control over the network without updating software.

Description

technical field [0001] The present invention relates to the technical field of data network and communication, in particular to a control method, device and control equipment of a forwarding path. Background technique [0002] With the development of communication networks, the scale of the network is getting larger and larger, the number of devices in the network is increasing, and the network structure is becoming more and more complex, which makes network management more and more difficult and service deployment is also very complicated. Operators hope to have a fast and flexible way to adjust traffic direction, and do not want to manually perform various policy configuration operations on routers and other forwarding devices. Changing configurations is very risky, and often causes network failures due to configuration errors. [0003] Before the emergence of SDN (Software Defined Network, software-defined network) technology, configuring BGP (Border Gateway Protocol, Bor...

Claims

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Application Information

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IPC IPC(8): H04L12/751H04L12/707H04L12/727H04L12/729H04L12/721H04L12/803H04L12/24H04L45/02H04L45/121H04L45/125H04L45/24
CPCH04L41/12H04L45/02H04L45/121H04L45/124H04L45/125H04L45/22H04L45/38H04L47/125H04L45/44H04L45/04
Inventor 雷华高凡刘华勇王旭
Owner ZTE CORP
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