Tunnel mapping method

A tunnel and next-generation technology, applied in the field of tunnel mapping, can solve problems such as no specific definition of Rn interface, no specific definition of MPLS LSP tunnel service data flow mapping, etc.

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

[0005] However, at present, ITU-T NGN does not specifically define the relevant functions of the Rn interface, nor does it specifically define how to complete the mapping between MPLS LSP tunnels and service data flows in detail, and thereby realize the service guarantee method for service data flows

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Embodiment Construction

[0029] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] Design principle of the present invention: utilize TRC-FE (TransportResource Enforcement Function Entity, transport resource control function unit), TRE-FE (Transport Resource Enforcement Function Entity, transport resource execution function unit) in RACF subsystem in NGN, and between The Rn interface realizes the mapping between the service data flow and the MPLS LSP tunnel.

[0031] As shown in Figures 2 and 3, the present invention provides a method for tunnel mapping, which is applied to the field of next-generation networks, and its implementation process includes the following steps:

[0032] 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 exe...

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Abstract

The invention discloses a mapping method, which is used in a next generation network field. The method comprises the steps as follows: the resource the service data flow is distributed by a TRC-FE according to the resource information of a MPLS LSP, 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 tunnel mapping method. 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 functional unit), PE-FE (Policy Enforcement Function Entity, policy e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/54H04L45/50H04L47/76
CPCH04L12/4633H04L47/825H04L12/5695H04L47/76H04L47/72H04L45/50H04L47/70
Inventor 黎定军
Owner ZTE CORP
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