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A kind of message transmission method and equipment based on lsp tunnel

A packet transmission and tunneling technology, applied in the communication field, can solve problems such as packet discarding and CPU consumption

Active Publication Date: 2016-08-10
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Therefore, when the device does not support fragmentation processing, the message will be discarded; when the device supports fragmentation processing, fragmentation processing will consume CPU (Central Processing Unit, central processing unit) resources

Method used

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  • A kind of message transmission method and equipment based on lsp tunnel
  • A kind of message transmission method and equipment based on lsp tunnel
  • A kind of message transmission method and equipment based on lsp tunnel

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The embodiment of the present invention provides a message transmission method based on an LSP tunnel, which is applied to a network (such as an MPLS network) including an in-tunnel device and an out-tunnel device, and there are multiple transmission path; figure 1 It is a schematic diagram of the application scenario of the embodiment of the present invention. It is assumed that device A is an in-tunnel device, and device B is an out-tunnel device, and there are 3 transmissi...

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Abstract

The invention discloses a message transmission method and equipment based on an LSP tunnel. The method includes: when a tunnel-entry device needs to send a message to an exit-tunnel device, it judges whether the length of the message is greater than the MTU value of the current LSP tunnel; If not, the tunnel-entry device sends a message to the tunnel-out device through the current LSP tunnel; if yes, the tunnel-entry device uses the packet length to re-establish the LSP tunnel between the device and the tunnel-out device, And send the message to the outgoing tunnel device through the re-established LSP tunnel. In the embodiment of the present invention, packet fragmentation processing can be avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a message transmission method and equipment based on LSP (Label Switched Paths, Label Switched Paths) tunnel. Background technique [0002] Network congestion is the main problem affecting the performance of the backbone network. The reason is congestion caused by insufficient network resources or unbalanced network resource load; TE (Traffic Engineering, traffic engineering) is used to solve the congestion caused by unbalanced network resource load. MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) TE combines MPLS technology and TE technology to reserve resources by establishing an LSP tunnel to a specified path, so that network traffic can bypass congested devices and achieve the purpose of balancing network traffic. [0003] MPLS TE is mainly used to implement two types of functions: (1) Static CR-LSP (Constraint-basedRouted Label Switched P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/805H04L12/723H04L12/46H04L47/36H04L45/50
Inventor 王茹萍赵昌峰
Owner XINHUASAN INFORMATION TECH CO LTD