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Tunnel establishing method and device

A technology for tunnel establishment and tunneling, which is applied in the direction of data exchange, digital transmission system, and electrical components through path configuration.

Active Publication Date: 2013-09-18
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current implementation, if another user needs to establish a TE tunnel with a bandwidth of 40M on DUT1, this requirement will not be met, because there is no link with a bandwidth that can meet such a bandwidth requirement. A technical bottleneck

Method used

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  • Tunnel establishing method and device

Examples

Experimental program
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Effect test

Embodiment Construction

[0084] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0085] figure 2 The flow chart of the method for establishing a TE tunnel provided by the present invention, such as figure 2 As shown, the specific steps are as follows:

[0086] Step 201: It is detected that the user configures the bandwidth a and the destination identifier required by the user on the local tunnel interface.

[0087] Step 202: Try to establish a TE tunnel satisfying the bandwidth a from the local to the destination.

[0088] Here, the establishment of the TE tunnel can be realized by using any existing technology such as CSPF algorithm.

[0089] Step 203: Determine whether the establishment is successful, if yes, the process ends; otherwise, execute step 204.

[0090] Step 204: Determine whether there is a link group that satisfies the following condition among all links from the local area to the destination:...

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PUM

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Abstract

The invention discloses a tunnel establishing method and device. The method comprises the following steps of: detecting that a required bandwidth and a destination identifier are configured on an interface of a local tunnel; trying to establish a traffic engineering (TE) tunnel satisfying the required bandwidth from a local place to a destination; judging whether the TE tunnel is successfully established; terminating the flow if the TE tunnel is successfully established; or else, selecting a link group from all links from the local place to the destination, wherein the selected link group satisfies the following condition: the sum of remaining bandwidths of all links in the link group is not smaller than the required bandwidth, and respectively establishing a small TE tunnel by using the remaining bandwidths of all the links in the link group; and binding all the small TE tunnels established on the link group into a large TE tunnel. In the invention, the bandwidth resources in a network are utilized more reasonably.

Description

technical field [0001] The present invention relates to the technical field of Traffic Engineering (TE, Traffic Engineering), in particular to a tunnel establishment method and device. Background technique [0002] Network congestion is a major problem affecting backbone network performance. The cause of congestion may be insufficient network resources, or local congestion caused by unbalanced network resource load. Traffic engineering (TE, Traffic Engineering) solves the congestion caused by load imbalance. [0003] TE monitors network traffic and network unit loads in real time, and dynamically adjusts traffic management parameters, routing parameters, and resource constraint parameters, etc., to migrate the network operating status to an ideal state, optimize the use of network resources, and avoid congestion caused by unbalanced loads. [0004] Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching) itself has some characteristics different from Interior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/46H04L12/801
Inventor 王茹萍
Owner XINHUASAN INFORMATION TECH CO LTD