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OpenFlow-based MPLS message processing method and device

A message and message forwarding technology, applied in the field of network communication, can solve problems such as reducing the message forwarding rate, and achieve the effect of flexible editing

Active Publication Date: 2018-03-06
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the forwarding process, it may be necessary to add multiple labels or delete multiple labels. When the switch chip deletes labels, it needs to strip off the external layer 2 header to reduce the forwarding rate of the message.

Method used

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  • OpenFlow-based MPLS message processing method and device
  • OpenFlow-based MPLS message processing method and device
  • OpenFlow-based MPLS message processing method and device

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Embodiment Construction

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0036] The OpenFlow-based MPLS message processing method and device disclosed in the present invention can not only flexibly add or delete labels to the MPLS message label stack, but also can flexibly process the Layer 2 header of the MPLS message. edit.

[0037] combine figure 1 and image 3 As shown, a method for processing MPLS packets based on OpenFlow comprises the following steps:

[0038] Step S1, performing label search on the received MPLS message;

[0039] Step S2, judge whether the MPLS message is in the OpenFlow mode according to the label configuration found after searching, if so, determine the number of deleted labels and the starting position according to the label configuration, and continue to execute step S3; if not, directly execute step S3 . Among them, the s...

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Abstract

The invention discloses an OpenFlow-based MPLS message forwarding method and device. The method includes the following steps: performing tag lookup for a received MPLS message, judging whether the MPLS message is in an OpenFlow mode based on the configuration of the found tag, if yes, determining a starting location and the number of deleted tags according to the tag configuration, and determiningwhether to perform the next tag lookup according to the tag configuration; if not, directly determining whether to perform the next tag lookup according to the tag configuration; if the tag lookup isneeded, performing the next tag lookup; and finally forwarding the MPLS message. According to the scheme of the invention, the operation of adding or deleting tags of an MPLS message tag stack can beflexibly carried out, and more changeable user needs can be met.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to an OpenFlow-based MPLS message processing method and device. Background technique [0002] MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) is a new generation IP high-speed backbone network switching standard. MPLS uses labels to forward data. When a packet enters the network, a fixed-length short label is assigned to it, and the label is encapsulated with the packet. During the entire forwarding process, the switching node forwards only based on the label. [0003] During the forwarding process, multiple labels may need to be added or deleted. When the switch chip deletes labels, it needs to strip off the external Layer 2 header to reduce the forwarding rate of the message. Contents of the invention [0004] The purpose of the present invention is to overcome the defects of the prior art, and provide an OpenFlow-based MPLS message ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L45/50
CPCH04L45/50H04L45/507
Inventor 单哲方沛昱姚佳毅
Owner SUZHOU CENTEC COMM CO LTD
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