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Method of implementing service data flow and label switching path tunnel mapping

A technology of label switching path and data flow, which is applied in the field of tunnel mapping between service data flow and label switching path

Inactive Publication Date: 2008-04-16
ZTE CORP
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Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of method that realizes the mapping of service data flow and label switching path tunnel, this method can realize the mapping of service data flow on the MPLS LSP tunnel in the NGN network based on MPLS-TE, has solved existing standard gaps in this area

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  • Method of implementing service data flow and label switching path tunnel mapping
  • Method of implementing service data flow and label switching path tunnel mapping

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Design principle of the present invention: Utilize TRC-FE (TransportResource Enforcement Function Entity, transport resource control function unit), PE-FE (Policy Enforcement Function Entity, policy execution function unit) in RACF subsystem in NGN, and Rc between them The interface implements the mapping between service data flows and MPLS-LSP tunnels.

[0030] As shown in Figures 2 and 3, the present invention provides a method for implementing tunnel mapping between service data flows and label switching paths, and the implementation process includes the following steps:

[0031] 110. PD-FE (Policy Decision Function Unit) or other units send a request for resource information of service data flows to TRC-FE; wherein, the other units include a transmission resource execution function unit and a policy execution function u...

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Abstract

The invention discloses a method for realizing the mapping of service data flow and label switching path tunnel, which is used in a next generation network field. The method comprises the step as follows: the resource of the service data flow is distributed by a TRC-FE according to the resource information of a MPLS LSP, and a PE-FE updating flow label mapping table and other information are announced by the TRC-FE through an Rc interface; the update of a FTN table is finished by the PE-FE, and the service data flow is mapped to a named LSP tunnel. With the Rc interface and the TRC-FE announcing the PE-FE the information of mapping the data flow to the named LSP tunnel, the invention realizes the mapping between the service data flow and the MPLS LSP tunnel. So the problem that in the prior standard the service data flow of NGN network which based on MPLS-TE and the mapping of LSP tunnel resource is incapable of being realized is solved.

Description

technical field [0001] The invention relates to the field of next-generation networks, in particular to a method for realizing tunnel mapping between service data flows and label switching paths. Background technique [0002] In the current ITU-NGN (International Telecommunication Union NextGeneration Network, International Telecommunication Union-next generation network) resource allocation and control function subsystem-RACF (Resource Admission Control Function, resource admission control function) definition (Y.RACF-Y. 2111 standard) and the definition of RACF based on MPLS-TE (Multi-Protocol Label Switch Traffic Engineering) (Y. , label switching path) tunnel and how to complete the mapping of the service data flow, so as to realize the method of service guarantee for the service data flow. [0003] As shown in Figure 1, the frame diagram of ITU-T NGN RACF in the prior art includes TRE-FE (Transport Resource Enforcement Function Entity, transport resource enforcement fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/50
Inventor 黎定军
Owner ZTE CORP
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