Service processing method and device based on label forwarding

Abstract

Embodiments of the present invention provide a service processing method and device based on label forwarding, which relate to the communication field. The method includes: obtaining the PHB type corresponding to the first service message; obtaining the PHB type corresponding to the PHB type according to the first mapping relationship First priority information, the length of the first priority information is m bits, m is an integer greater than 3; obtain label information according to the label control protocol; according to the first priority information and label information, encapsulate n for the first service message layer label to obtain the second service message; wherein, the n-layer label is used to carry the first priority information; send the second service message to the second node, and the second node according to the first priority information carried in the n-layer label Process the second service packet. It solves the problem in the prior art that business processing is relatively limited due to the limited number of priorities provided; and achieves the effect that more priorities can be provided, thereby satisfying business processing requirements.

Description

Technical field [0001] The embodiments of the present invention relate to the field of communications, and in particular to a method and device for service processing based on label forwarding. Background technique [0002] The differentiated service (English: Differentiated Service; abbreviation: DiffServ) model can distinguish the traffic of various services and assign priorities according to the content of the message, ensuring that high-priority services are forwarded first. Therefore, the DiffServ model is widely used in multi-protocol label switching (English: Multiprotocol Label Switching; abbreviated: MPLS) networks. [0003] MPLS label includes 20bit label value field, 3bit priority field, 1bit stack bottom field, and 8bit 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 field of the service messa...

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-Label Switched Path; abbreviation: E-LSP), in this scheme, the DiffServ model uses the priority field in the MPLS label to represent The priority of the service message, 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. Processing is more limited

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