I've also found that having a layer of indirection between the JMS client and the actual JMS destination gives the architecture additional flexibility.

我还发现在J MS客户机与实际的jms目的地之间设置一个间接层可以增加体系结构的灵活性。

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Transport Layer protocols, such as the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), specify a source and destination port number in their packet headers.

传输层协议，诸如传输控制协议（TCP），用户数据报协议（UDP）， 会在它们的头部指定一个资源和目的地的端口号。

youdao

The network layer manages the movement of packets in a network, specifically making sure packets get to their destination (also called routing).

网络层（network layer） 负责管理网络中的报文移动，具体来说就是确保报文都到达自己的目标（也称为路由）。

youdao