Packaging method of business routing message, business forwarding entity and control plane

Abstract

Disclosed is an encapsulation method for a service routing packet. The method comprises: receiving a first packet, and determining that the next hop is a Legacy service processing entity (Legacy SPE); caching a correlation between an SFC header of the first packet and a first original packet, and sending the first original packet to the Legacy　SPE; receiving a returned second original packet, and determining the SFC header of the first packet corresponding to the second original packet according to a mapping rule of the acquired original packet of the Legacy　SPE; and encapsulating the SFC header of the first packet into the second original packet to form a new service routing packet. Also provided are a service forwarding entity and a control plane. By means of the embodiments of the present invention, the problem of exceptional interruption caused by the loss of an SFC header can be avoided.

Description

technical field [0001] The invention relates to the technical field of service chains, in particular to a method for encapsulating service routing messages, a service forwarding entity and a control plane. Background technique [0002] With the increase of service types of operators, in order to support a better service experience, it is necessary to deploy a service routing network in the network, and a flexible service function chaining (Service Function Chaining, SFC) technology is proposed. This technology provides the basis for flexible business processing by linking multiple business processing functions. The SFC technology classifies the service flow through the service classifier (Service Classifier, SCLA), and then forwards the service flow to different service processing entities (Service Processing Entity, SPE) through the service forwarding entity (Service Forwarding Entity, SFE) for business processing . [0003] refer to figure 1 , is a structural diagram of...

AI Technical Summary

Problems solved by technology

[0006] The problem with the existing technology is that: after the original message is processed by the Legacy SPE, if there is a change, the SFE cannot re-associate the SFC header of the stripped original message with the processed message, resulting in the inability to restore the SFC of the message. head

However, the SFC header contains the information of the service chain. If the SFC header is lost, the message will abnormally interrupt the processing of the service chain to which it belongs.

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