这些服务利用网络进行传输，涉及许多不同的协议和接口。
These services are spread out over the network and are accessed through a number of varying protocols and interfaces.
在常规页，您可以设置一个规则的动作，方向，协议和接口。
In the General page, you can setup a rule action, direction, protocol and an interface.
接口协议和实现策略之间的解耦。
Decoupling of interface protocols from an implementation strategy.
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