Method, device and system for realizing cross-domain MPLS label distribution in SDN network

A cross-domain and labeling technology, applied in the field of SDN communication, can solve the problems of difficult efficient management of cross-domain services, and achieve the effect of efficient management and cross-domain MPLS network without increasing system complexity and management costs

Inactive Publication Date: 2019-07-02
上海层峰网络科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a method for realizing cross-domain MPLS label distribution in an SDN network

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  • Method, device and system for realizing cross-domain MPLS label distribution in SDN network
  • Method, device and system for realizing cross-domain MPLS label distribution in SDN network
  • Method, device and system for realizing cross-domain MPLS label distribution in SDN network

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Embodiment Construction

[0070] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0071] This application is mainly applied to SDN. The core technology of SDN is the Openflow protocol. The Openflow protocol runs on the SDN physical network. The SDN physical network includes an SDN controller and multiple Openflow switches. The following are the technical terms involved:

[0072] CE: CustomerEdg, customer edge equipment, the customer end router to which the service provider is connected. A CE router provides service access for users by connecting to one or more PE routers. A CE router is usually an IP r...

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Abstract

The invention discloses a method for realizing the cross-domain MPLS label distribution in an SDN network, and the method comprises the steps of initializing the MPLS labels of a whole network, and dividing the MPLS labels of the whole network into a plurality of sets, wherein the plurality of sets at least comprise an intra-domain service label set and a cross-domain service special label set; distributing the intra-domain service label set to a domain controller of the whole network, wherein the intra-domain service label set is managed and distributed by the domain controller when the intra-domain service is processed, and the cross-domain service special label set is managed and distributed by the global controller when the global controller processes the cross-domain service. According to the invention, the global business coordination is carried out through the global controller, the intra-domain businesses and the cross-domain businesses are treated differently, and the MPLS labels are managed in a segmented manner, so that the MPLS networks of a plurality of network domains are managed efficiently and autonomously, and the cross-domain MPLS networks are managed efficiently.

Description

technical field [0001] The invention relates to the field of SDN communication, in particular to a method for realizing cross-domain MPLS label distribution in an SDN network. The present invention also relates to a device for realizing cross-domain MPLS label distribution in an SDN network and a system for realizing cross-domain MPLS label distribution in an SDN network. Background technique [0002] In a traditional MPLS network, the upstream and downstream LSRs label packets with different labels according to the protocol to perform FEC division and LSP establishment. In an SDN network, NE devices are usually SDN switches that support standard SDN protocols (such as Openflow switches ) does not have the MPLS Label switching capability, the division of FEC and the establishment of LSP are all completed by the SDN controller. [0003] like figure 1 As shown, in the SDN network world, the SDN controller is the brain of the entire network, and the collection of all NEs and ...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L45/50
CPCH04L45/507
Inventor 公令君赵杨旭峰施政张永福吕屹庞俊英
Owner 上海层峰网络科技有限公司
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