circuit switching

简明释义

线路转接

英英释义

例句

1.The circuit switching 电路交换 method ensures that the bandwidth is reserved for the duration of the call.

使用circuit switching 电路交换 方法可以确保在通话期间保留带宽。

2.Many modern VoIP systems have moved away from circuit switching 电路交换 due to its inefficiency in handling data traffic.

由于在处理数据流量时效率低下，许多现代VoIP系统已经放弃了circuit switching 电路交换。

3.In traditional telephone networks, circuit switching 电路交换 is used to establish a dedicated communication path between two parties.

在传统电话网络中，circuit switching 电路交换 用于在两方之间建立专用的通信路径。

4.Unlike circuit switching 电路交换, packet switching allows multiple communications to share the same transmission medium.

与circuit switching 电路交换 不同，分组交换允许多个通信共享相同的传输介质。

5.In a circuit switching 电路交换 network, once a connection is established, it remains active until it is explicitly terminated.

在circuit switching 电路交换 网络中，一旦建立连接，它将保持激活状态，直到显式终止。

作文

In the realm of telecommunications, the concept of circuit switching plays a pivotal role in how we communicate. Circuit switching refers to a method of communication where a dedicated communication path or circuit is established between two endpoints for the duration of the transmission. This technique was widely used in traditional telephone networks, where a physical connection was made for each call. The significance of circuit switching lies in its ability to provide a consistent and reliable connection, ensuring that the data transmitted remains intact and in order.The process of circuit switching begins when a user initiates a call. The telephone network establishes a dedicated path by connecting various switches along the route. Once the connection is made, the users can communicate without interruption until one party hangs up. This method contrasts with packet switching, where data is broken into packets and sent independently over the network, which can lead to delays and variations in data arrival.One of the key advantages of circuit switching is its predictability. Since a dedicated circuit is maintained throughout the communication session, there is minimal latency, making it ideal for real-time voice communications. For instance, when you make a phone call, you expect immediate feedback and clarity, which circuit switching provides effectively. Additionally, during the call, the quality of the connection remains stable, as the bandwidth is reserved exclusively for that conversation.However, circuit switching also has its drawbacks. The most significant disadvantage is the inefficient use of resources. Since a dedicated circuit is reserved for each call, even if one party is silent, the bandwidth remains unused. This can lead to congestion, especially during peak usage times, as more users compete for limited circuits. In contrast, packet switching allows for more efficient use of available bandwidth by dynamically allocating resources based on demand.As technology has evolved, the telecommunications industry has seen a shift from circuit switching to more modern methods such as Voice over Internet Protocol (VoIP) and other internet-based communication systems. These technologies leverage packet switching, allowing for greater flexibility and efficiency. VoIP, for example, enables voice calls to be made over the internet, where data packets are transmitted across various routes, optimizing the use of available bandwidth.Despite this shift, circuit switching remains relevant in certain applications, particularly in scenarios where reliability and low latency are critical. Emergency services, for instance, often rely on traditional circuit-switched networks to ensure that calls are prioritized and connected immediately without the risk of packet loss or delay.In conclusion, circuit switching is a fundamental concept in telecommunications that has shaped the way we communicate. While newer technologies have emerged that offer enhanced efficiency and flexibility, the reliability and stability of circuit switching continue to hold value in specific contexts. Understanding this method helps us appreciate the evolution of communication technologies and the ongoing balance between efficiency and reliability in our increasingly connected world.

在电信领域，电路交换的概念在我们沟通的方式中起着关键作用。电路交换是指一种通信方法，在这种方法中，为了传输的持续时间，在两个端点之间建立专用的通信路径或电路。这种技术在传统电话网络中被广泛使用，每个通话都需要建立一个物理连接。电路交换的重要性在于它能够提供一致和可靠的连接，确保传输的数据保持完整且有序。电路交换的过程开始于用户发起通话。当电话网络建立一个专用路径时，通过连接沿途的各种交换机。一旦连接建立，用户就可以在不间断的情况下进行通信，直到一方挂断电话。这种方法与分组交换形成对比，后者将数据分解为数据包并独立发送，这可能导致延迟和数据到达的变化。电路交换的一个主要优点是其可预测性。由于在整个通信会话中保持专用电路，因此延迟最小，使其非常适合实时语音通信。例如，当您拨打电话时，您希望立即反馈和清晰度，而这正是电路交换有效提供的。此外，在通话期间，连接的质量保持稳定，因为带宽专门保留用于该对话。然而，电路交换也有其缺点。最显著的缺点是资源的低效使用。由于每个通话都保留一个专用电路，即使一方保持沉默，带宽也不会被使用。这可能导致拥塞，尤其是在高峰使用时，因为更多用户争夺有限的电路。相比之下，分组交换通过根据需求动态分配资源，使可用带宽的使用更加高效。随着技术的发展，电信行业已经从电路交换转向更现代的方法，如互联网协议语音（VoIP）和其他基于互联网的通信系统。这些技术利用分组交换，允许更大的灵活性和效率。例如，VoIP允许通过互联网进行语音通话，在这种情况下，数据包通过各种路线传输，从而优化可用带宽的使用。尽管发生了这种转变，但在某些应用中，电路交换仍然相关，特别是在可靠性和低延迟至关重要的情况下。例如，紧急服务通常依赖传统的电路交换网络，以确保通话被优先处理并立即连接，而没有数据包丢失或延迟的风险。总之，电路交换是电信中的一个基本概念，塑造了我们的沟通方式。虽然出现了新技术，提供了更高的效率和灵活性，但在特定背景下，电路交换的可靠性和稳定性仍然具有价值。理解这种方法有助于我们欣赏通信技术的演变，以及在我们日益互联的世界中效率与可靠性之间的持续平衡。