SB transmitting received said service request to SPDF selected service server, said service server according to service request carried service priority to make service process.
SB将接收的所述业务请求发送到SPDF选择的业务服务器，由该业务服务器按照业务请求中携带的业务优先级进行业务处理。
SPDF according to translated priority and service chain service listing selecting satisfying said priority condition next service server and notifying SB;
SPDF根据翻译后的业务优先级和业务链上的业务编排，选择满足该优先级条件的下一个业务服务器并通知SB；
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