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Constructing method and equipment of side road tunnel

A technology of tunnel establishment and establishment method, which is applied in the network field and can solve the problems that AutoBypassTunnel cannot be established, etc.

Inactive Publication Date: 2010-01-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since CSPF (Constrained Shortest PathFirst, constrained shortest path first algorithm) cannot perform path calculation across domains, Auto BypassTunnel cannot be established
Or when CSPF is not enabled on the RTB router, the Auto Bypass Tunnel cannot be established either

Method used

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  • Constructing method and equipment of side road tunnel
  • Constructing method and equipment of side road tunnel
  • Constructing method and equipment of side road tunnel

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail:

[0032] Embodiments of the present invention provide a method for establishing a bypass tunnel. Considering that the protection of the main tunnel by the bypass tunnel is realized by protecting the outgoing interface of the main tunnel, once the bypass tunnel protects a certain interface, then the All the main tunnels of this interface may be protected by bypass tunnels, and the interface through which the main tunnel passes is the protected interface. For the protected interface, if the main tunnel passing through the interface requires FRR protection, then there should be a bypass tunnel to protect the interface. If the explicit path that should be used by the bypass tunnel of the protected interface is specified in advance, when the automatically established bypass tunnel needs to protect the interface, it can be established...

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Abstract

The embodiment of the invention discloses a constructing method and equipment of a side road tunnel. The method comprises: applying a used display route when constructing a designated side road tunnel at a protected interface; obtaining a target address of the side road tunnel to be constructed at the protected interface; obtaining corresponding display route according to the target address; and constructing the side road tunnel to the target address according to the obtained display route. The embodiment of the invention discloses constructing equipment of the side road. By using the embodiment of the invention and designating the display route to be used for the construction of the side road tunnel, the defect of the current automatic fast heavy route technology is solved, thus ensuring the automatic fast heavy route technology to be safely deployed in an actual network and controlling the side road tunnel to be automatically constructed on a route which has smaller hazard or is expected by a user.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a method and equipment for establishing a bypass tunnel. Background technique [0002] MPLS TE (Multi-Protocol Label Switch Traffic Engineering, Multi-Protocol Label Switching Traffic Engineering) fast rerouting is one of the technologies to realize local network protection. Existing fast rerouting requires manual configuration of a Bypass Tunnel (bypass tunnel) to be bound to it when configuring the protected tunnel. When a link or node fails somewhere, the LSP (Layered Service Provider, Layered Service Provider) configured with fast rerouting protection can automatically switch the data to the link of the Bypass Tunnel. This FRR (Fast Reroute, fast rerouting) protection requires manual configuration of the Bypass Tunnel. If the Bypass Tunnel is not configured or the user forgets to configure it, or when the Bypass Tunnel is bound to the main tunnel and fails due to some failu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/56
Inventor 刘春曾昕宗范大卫
Owner HUAWEI TECH CO LTD
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