OpenFlow-based MPLS message processing method and device

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 ...

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