A label distribution method and aggregation device

A technology for aggregating equipment and allocation methods, which is applied in the field of communication networks, can solve the problems of applying for a large number of resources and consuming large label resources, and achieve the effect of reducing allocation and quantity

Active Publication Date: 2016-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when using the existing technology to allocate label resources, if there are many VPNs on the PE, the SPE or ASBR device still needs to apply for a large number of labels and consume a large amount of label resources

Method used

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  • A label distribution method and aggregation device
  • A label distribution method and aggregation device
  • A label distribution method and aggregation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] An embodiment of the present invention provides a label assignment method, which is suitable for figure 1 the scene shown. figure 1 In the shown scenario, the first edge device may be an NPE or a UPE, and the second edge device may be an NPE or a UPE. However, when the first edge device is a UPE, the second edge device is an NPE; when the first edge device is an NPE, the second edge device is a UPE. The aggregation device can be SPE or ASBR. In the solution provided by the embodiment of the present invention, the first edge device is a UPE, the second edge device is an NPE, and the aggregation device is an SPE as an example for detailed description. Such as figure 2 As shown, the method includes:

[0045] 101. The aggregation device receives a routing message sent by a first edge device, where the routing message includes a private network route published by the first edge device;

[0046] For example, the routing message includes the private network route release...

Embodiment 2

[0057] An embodiment of the present invention provides a label allocation method. The application scenario is that the aggregation device includes at least two layers of aggregation devices. Here, the aggregation device can be an SPE or an ASBR. The first layer of aggregation devices can include at least two Two aggregation devices, for the convenience of description, in the solution provided by the embodiment of the present invention, the aggregation device includes the first layer aggregation device and the second layer aggregation device, and the first layer aggregation device further includes two aggregation devices as an example for description , where the labels assigned by the first-tier aggregation device may be collectively referred to as the first-layer aggregation label, and the labels assigned by the second-tier aggregation device may be collectively referred to as the second-layer aggregation label. It should be noted that the first edge device may be an NPE or a U...

Embodiment 3

[0096] The embodiment of the present invention provides a message sending method, which is described by taking layered VPN networking as an example. Here, layering refers to PE devices that participate in VPN service deployment, and continue to divide layers according to their different functions when participating in VPN service deployment. .

[0097] It should be noted that, in the embodiment of the present invention, the first edge device may be an NPE or a UPE, and the second edge device may be an NPE or a UPE. However, when the first edge device is a UPE, the second edge device is an NPE; when the first edge device is an NPE, the second edge device is a UPE. When the first edge device is an NPE and the second edge device is a UPE, the execution process of the packet sending method provided by this embodiment is similar to the processing process when the first edge device is a UPE and the second edge device is an NPE. Therefore, in the solution provided by the embodiment ...

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PUM

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Abstract

The invention discloses a label allocation method and aggregation equipment, which relate to the technical field of communication networks. By receiving a routing message sent by a first edge equipment, an aggregation label corresponding to the first edge equipment is allocated, and an aggregation label is established according to the aggregation label. LSP, where the LSP is used by the aggregation device to transmit the received data packet carrying the first aggregation label to the first edge device. Compared with the need to consume a large amount of label resources in the label allocation process of the prior art, the solution provided by the embodiment of the present invention can reduce label allocation and correspondingly reduce the number of established LSPs, thereby saving label resources and reducing the number of established LSPs. The purpose of the number of LSPs.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular to a label allocation method and aggregation equipment. Background technique [0002] With the application of layered VPN (Virtual Private Network, virtual private network) scheme in IPRAN (IPRadioAccessNetwork, IP radio access network) more and more widely, SPE (SuperstratumProviderEdge, aggregation operator edge equipment) from UPE (User-endProviderEdge, user The number of routes learned by the side operator edge device) is constantly increasing, and the number of LSPs (LabelSwitchPath, label forwarding path) established by the SPE is also constantly increasing. [0003] The SPE needs to publish all the routes learned from the UPE to the NPE (NetworkProviderEdge, operator edge device on the network side), and establish an LSP (labelswitchedpath, label switched path) to guide the traffic to be forwarded to the corresponding UPE according to the LSP. In this w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L45/50
CPCH04L45/507
Inventor 王海波
Owner HUAWEI TECH CO LTD
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