SERVICE ROUTING SYSTEM, DEVICE, AND METHOD

摘要

The present invention provides a service routing system, device, and method. In embodiments of the present invention, a first service flow classifier generates a notification message that includes service flow category information, a service path controller generates, according to the notification message, a first forwarding entry corresponding to each of i programmable switches that are connected to k service enablers, and the i programmable switches each forward a data packet of a service flow according to the corresponding first forwarding entries, so that the k service enablers process the data packet of the service flow according to a sequence. In this way, network reliability can be improved.

主权项

1. A service routing system, comprising:
a first service flow classifier, a service path controller, h programmable switches, m service enablers, a first interface between the first service flow classifier and the service path controller, a second interface between the service path controller and each of the h programmable switches, a third interface between the first service flow classifier and the jth programmable switch of the h programmable switches, and wherein each service enabler of the m service enablers is connected to one of the h programmable switches, and the h programmable switches are interconnected; wherein the first service flow classifier is configured to generate a notification message according to a service flow, wherein the notification message comprises service flow category information corresponding to the service flow, the service flow category information is used to indicate a first service chain corresponding to the service flow, the first service chain comprises k service enablers of the m service enablers, and the k service enablers in the first service chain are arranged according to a first sequence; wherein the service path controller is configured to: receive the notification message from the first service flow classifier by using the first interface, and generate, according to the notification message, a first forwarding entry corresponding to each programmable switch of i programmable switches, wherein the i programmable switches are connected to at least one of the k service enablers, and the i programmable switches are selected from the h programmable switches; and wherein each programmable switch of the i programmable switches is configured to: receive the first forwarding entry corresponding to each programmable switch from the service path controller by using the second interface, and forward a data packet of the service flow according to the first forwarding entry corresponding to each programmable switch, so that the k service enablers process the data packet of the service flow according to the first sequence; and wherein h, m, and j are all positive integers, k is a positive integer less than or equal to m, and i is a positive integer less than or equal to h.