Transport multiprotocol label switching network (T-MPLS) system for and link protection method

A multi-protocol label and network system technology, applied in the field of T-MPLS network system and link protection, can solve the problems of busy system, occupying too much system resources, untimely response, etc., and achieve the effect of effective and reliable link protection

Inactive Publication Date: 2010-07-07
ZTE CORP
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  • Claims
  • Application Information

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Problems solved by technology

[0008] For a network configured with a large number of links, both traditional path protection and ring network protection have certain defects, that is, if path protection is configured, when a link fails, a large number of The channel layer OAM alarm message will oc

Method used

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  • Transport multiprotocol label switching network (T-MPLS) system for and link protection method
  • Transport multiprotocol label switching network (T-MPLS) system for and link protection method
  • Transport multiprotocol label switching network (T-MPLS) system for and link protection method

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Embodiment Construction

[0047] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] The embodiment of the present invention provides a kind of T-MPLS network system, described T-MPLS network system comprises:

[0049] The main link includes at least three main communication nodes.

[0050] The ring network protection link is located between two adjacent main communication nodes, and the ring network protection link includes at least one backup communication node;

[0051]The linear protection link is located between the head and tail main communication nodes of the main link. The head and tail main communication nodes of the main link refer to the first main communication node and the last main communication node on the main link, and other main communication nodes on the main link are called intermediate main communication nodes . The linear protection link includes at least o...

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Abstract

The invention provides a transport multiprotocol label switching (T-MPLS) network system and a link protection method. The network system comprises a main link, a ring network protection link, a linear protection link, a first switching module and a second switching module, wherein the main link comprises at least three main communication nodes; the ring network protection link is located between two adjacent main communication nodes; the linear protection link is located between the head main communication node and the tail main communication node of the main link; the first switching module is used for transmitting data messages through the ring network protection link between the two adjacent main communication nodes when the main link between the two adjacent main communication nodes fails; and the second switching module is used for transmitting the data messages through the linear protection link when the middle main communication node of the main link fails. The invention can provide more effective and reliable link protection for the T-MPLS network system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a T-MPLS (Transmission-Multiprotocol Label Switching, transmission multi-protocol label switching) network system and link protection method. Background technique [0002] T-MPLS is a packet transport network technology standardized by the International Telecommunication Union (ITU-T), and its data is forwarded based on T-MPLS labels. T-MPLS is a connection-oriented technology, which is the application of MPLS (Multiprotocol Label Switching, Multi-Protocol Label Switching) in the transport network. On the basis of MPLS, the connection-oriented OAM (Operation (Operation), Management ( Administration), maintenance (Maintenance)) and protection recovery functions. [0003] T-MPLS meets the layered structure defined by ITU-TG.805. T-MPLS network can be divided into: media layer, section layer (TMS), path layer (TMP) and circuit layer (TMC). Wherein, the medium layer ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L12/24H04L45/24H04L45/28H04L45/50
CPCH04L45/22H04L45/50H04L12/403H04L45/28H04L12/437
Inventor 冷星星宋晓娟
Owner ZTE CORP
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