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A method and device for obtaining and maintaining terminal node identifiers

A technology for maintaining end nodes and nodes, which is applied in the field of data communication, can solve problems such as complex implementation, and achieve the effect of simple implementation and wide application range

Active Publication Date: 2017-06-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this method requires the NMS to collect information about the TE tunnels configured in the entire network, it is relatively easy to apply in a single domain; however, when the TE-LSP crosses domains, this method will involve the interconnection of network management between different domains problem, it is quite complex to implement

Method used

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  • A method and device for obtaining and maintaining terminal node identifiers
  • A method and device for obtaining and maintaining terminal node identifiers
  • A method and device for obtaining and maintaining terminal node identifiers

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Embodiment Construction

[0054] The basic idea of ​​the present invention is: when the first node of the tunnel creates a bidirectional label switching path LSP, it sends a message to obtain the tunnel ID configured by the destination node to the destination node of the tunnel; The message of the tunnel ID configured by the end node is sent to the head node; the head node configures the MEP ID expected to be received according to the received information of the destination node.

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0056] In the present invention, the path state request transmitted between the nodes is realized with the Path message in the RSVP-TE message, and the path state request is processed by the PathErr message in the RSVP-TE message. The status request is implemented through the Reservati...

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PUM

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Abstract

The present invention provides a method and device for obtaining and maintaining an ID of an end node, the method comprising: when the head node of the tunnel creates a bidirectional label switching path LSP, sending a message for obtaining the tunnel ID configured by the destination node to the destination node of the tunnel ; The destination node returns a message carrying the tunnel ID configured at the local end to the head node according to the received message. In the present invention, the first node of the tunnel returns the tunnel ID configured by the destination node to the first node through the destination node of the tunnel, and obtains the tunnel ID configured by the destination node for CV detection or other OAM functions, so as to avoid knowing the tunnel through the network management The interconnection and intercommunication between different domains in information time is simple to realize and has a wide range of applications.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method and a device for acquiring an identifier (Identifier, ID) of a maintenance end point (Maintenance EndPoint, MEP). Background technique [0002] Internet Protocol (Internet Protocol, IP) / MultiProtocol Label Switching (MultiProtocol Label Switch, MPLS) in data communication, Multi Protocol Label Switching (Multi Protocol LabelSwitch-Transport Profile, MPLS-TP) based on transport architecture, general multi-protocol label In networks such as General Multi Protocol Label Switch (GMPLS), Traffic Engineering Label Switching Path (Traffic Engineering-Label Switching Path, TE-LSP) is created using Traffic Engineering-based Resource Reservation Protocol (ResourceReservation Protocol-TE, RSVP-TE) . TE-LSP is divided into two types: unidirectional and bidirectional. Among them, the creation scheme of MPLS-based TE-LSP is regulated in RFC3209, while the creation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/24H04L12/723H04L47/724H04L45/50
CPCH04L43/0811H04L47/724H04L45/50H04L41/34
Inventor 张飞鲍晓
Owner ZTE CORP