Business processing method and device based on label forwarding

Abstract

The embodiment of the invention provides a business processing method and device based on label forwarding, and relates to the field of communication. The method comprises the steps of acquiring a PHB type corresponding to a first business message; acquiring first priority information corresponding to the PHB type according to a first mapping relation, wherein the length of the first priority information is m bits, and m is an integer more than 3; acquiring label information according to a label control protocol; packaging the first business message with n layers of labels according to the first priority information and the label information, and thus obtaining a second business message, wherein the n layers of labels are used for carrying the first priority information; and sending a second business message to a second node, and the second node processing the second business message according to the first priority information carried in the n layers of labels. The problem that in the prior art, the processing of the business is relatively limited as the number of the provided priorities is limited; and the effect that more priorities can be provided, and thereby meeting business processing requirements is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication, and in particular to a service processing method and device based on label forwarding. Background technique [0002] The differentiated service (English: DifferentiatedService; abbreviation: DiffServ) model can distinguish the traffic of various services according to the content of the message and assign priorities to ensure that high-priority services are forwarded preferentially. Therefore, the DiffServ model is widely used in a Multiprotocol Label Switching (English: MultiprotocolLabelSwitching; MPLS for short) network. [0003] The MPLS label includes a 20-bit label value field, a 3-bit priority field, a 1-bit stack bottom field, and an 8-bit lifetime field. Among them, the label value in the label value field is used to indicate the forwarding path of the forwarding service to the downstream node, the priority in the priority field is used to indicate the priority fiel...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the scheme for realizing traffic classification of MPLS network includes EXP Label Switched Path (English: EXP-LabelSwitchedPath; abbreviation: E-LSP). In this scheme, the DiffServ model uses the priority field in the MPLS label to represent the service report However, since the priority field of the MPLS label has only 3 bits, it can only represent 8 priorities, so when the node processes the service message, it can only process it according to the 8 priorities, and the service processing is relatively limitations

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