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Multi protocol label switching connectivity checking mode arranging method

A multi-protocol label and label switching path technology, applied in the field of multi-protocol label switching, can solve problems such as limitations, unsupported equipment, high equipment processing capabilities, etc., to achieve the effect of ensuring implementation and reducing service interruption

Inactive Publication Date: 2006-10-11
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Among the three CV modes, the implementation of NORM-CV is relatively simple. Since only one NORM-CV message is sent per second, the processing capability of the device is not high, so it can be realized by software; but the message sending frequency of FFD-CV Higher, if the processing speed is 10ms, the processing capability of the device is required to be higher, which may be limited by the hardware
However, FEC-CV is not supported by many devices because the standard was introduced late and FEC needs to be processed by algorithms.
In this way, if the CV mode configured on the far end of the LSP is not supported on the near end, the service will inevitably fail.

Method used

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  • Multi protocol label switching connectivity checking mode arranging method
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  • Multi protocol label switching connectivity checking mode arranging method

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Embodiment Construction

[0039] Various preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] Such as figure 2 and image 3As shown, in the negotiation method of the connectivity check mode of the MPLS of the present invention, in the MPLS system, the management plane connects and controls the control plane and the data plane, and the control plane It includes a signaling processing subsystem, a traffic engineering processing subsystem, and a routing processing subsystem; a CV mode negotiation processing module is set in the signaling processing subsystem, and the CV mode negotiation processing module can pass through the data plane. The routing / signaling protocol message is obtained in the message forwarding processing subsystem, and a CV mode control command is issued to the CV state machine processing module in the data plane.

[0041] In the method of the invention, the management plane completes the LSP connecti...

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Abstract

The connectivity check-mode negotiation method by multi-protocol label exchange comprises: initiating negotiation process once distributing CV mode configuration information for the label exchange path; sending device self CV capacity information to opposite-end device; selecting CV mode according to information sent from opposite-end; controlling the processing mode of CV state machine to start up the corresponding dynamic process mechanism. This invention can ensure same CV mode for both near and remote ends and can decrease business interruption.

Description

technical field [0001] The present invention relates to the multi-protocol label switching technology in the optical network, in particular to a negotiation method for the connectivity check (CV) mode of multi-protocol label switching operation and maintenance (MPLS OAM). Background technique [0002] Multi-Protocol Label Switching (Multi-Protocol Label Switching, hereinafter referred to as: MPLS) technology introduces the idea of ​​ATM fixed-length label switching, so that the data plane of the traditional IP network transitions from "connectionless" to "connected", realizing " Carrier-grade next-generation network; the control plane of the current MPLS network still uses connectionless. After the introduction of technologies such as QoS, TE, VPN, and OAM, MPLS has gradually become a key technology for the integration of the three networks. [0003] ITU-T defines the operation and maintenance MPLS OAM technology of multi-protocol label switching, including connectivity det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/28H04L29/06
Inventor 杨洋
Owner GLOBAL INNOVATION AGGREGATORS LLC