The externalbridge br-ex handles external instance network traffic within OVS.
外部网桥需要提供外部网络接口来访问实例外部网络。
2
Using the template method for implementing the bridge role of the broker pattern provided a mechanism for adding alternative types of external communication in the future.
使用模板方法实现中介模式的桥接角色，这种做法提供了一种可以在将来添加外部通信备用类型的机制。
3
Unlike EAI, Web services offer a wide range of standards to bridge applications with external service providers.