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Transport-multi-protocol label switching (T-MPLS) label processing method and unit

A multi-protocol label and processing method technology, which is applied in the field of transmission multi-protocol label switching T-MPLS label processing, can solve the problems of wasting network resources and reducing the utilization rate of network resources, etc.

Inactive Publication Date: 2010-09-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a T-MPLS label processing method, which is used to solve the problem that the search operation of the last hop to search for the tunnel label in the prior art wastes a lot of network resources and reduces the utilization rate of network resources. questions, including:

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  • Transport-multi-protocol label switching (T-MPLS) label processing method and unit
  • Transport-multi-protocol label switching (T-MPLS) label processing method and unit
  • Transport-multi-protocol label switching (T-MPLS) label processing method and unit

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Embodiment 1

[0039] When the label in the first label space composed of labels whose value is less than the value of the preset demarcation label is set as the last hop label of the tunnel, when the comparison result is that the value of the T-MPLS label carried in the data packet is greater than the preset demarcation label When the value of, it is determined that the T-MPLS label carried in the data packet is a non-tunnel last hop label;

[0040] When the comparison result is that the value of the T-MPLS label carried in the data message is less than the value of the preset demarcation label, it is determined that the T-MPLS label carried in the data message is the last hop label of the tunnel.

Embodiment 2

[0042] When the label in the second label space composed of labels whose value is greater than the value of the preset demarcation label is set as the last hop label of the tunnel, when the comparison result is that the value of the T-MPLS label carried in the data packet is greater than the preset demarcation label When the value of, it is determined that the T-MPLS label carried in the data packet is the last hop label of the tunnel;

[0043] When the comparison result is that the value of the T-MPLS label carried in the data message is less than the value of the preset demarcation label, it is determined that the T-MPLS label carried in the data message is a non-tunnel last-hop label.

[0044] In the embodiment of the present invention, in order to improve the utilization of the label space, the value of the preset demarcation label can be dynamically adjusted according to the specific situation. For example, if all the labels in the first label space are allocated, the labels in...

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Abstract

The invention discloses a T-MPLS label processing method. The method comprises the following steps of: acquiring the value of a T-MPLS label carried by a received data message, comparing the value of the T-MPLS label with the value of a preset boundary label, and determining whether the T-MPLS label is the last hop label in the tunnel; and setting the labels in the first label space which is composed of the labels of which the values are smaller than the value of the preset boundary label, as the last hop label or non-last hop label in the tunnel, setting the labels in the second label space which is composed of the labels of which the values are greater than the value of the preset boundary label as the other type, and selecting and distributing labels from the first label space or the second label space according to the type of the equipment of the label to be distributed. The invention also discloses a T-MPLS label processing unit. The invention can increase the utilization ratio of network resources.

Description

Technical field [0001] The embodiment of the present invention relates to the field of network communication technology, and in particular to a method and device for processing a multi-protocol label switching T-MPLS label in data communication. Background technique [0002] MPLS (Multi-protocol Label Switch, multi-protocol label switching) is a system for fast data message exchange and routing. It is proposed to increase the data message forwarding speed and is in contrast to traditional IP (Internet Protocol) routing Compared with the longest matching search method, when data is forwarded, MPLS can forward the data according to the pre-allocated label, saving processing time such as matching search. ITU-T (International Telecommunication Union Standardization Sector) proposed the concept of T-MPLS (Transport-MPLS, Transport Multi-Protocol Label Switching) at the 2006 Geneva plenary meeting. T-MPLS can solve the traditional SDH ( Synchronous Digital Hierarchy (Synchronous Digit...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L45/50
Inventor 林开
Owner ZTE CORP