首先，UDP是无连接的。
What is an advantage of using a connectionless protocol such as UDP?
使用非面向连接的协议如udp的优点是哪一个？
UDP is a connectionless protocol and, as such, it can be easily spoofed.
是一个无连接的UDP协议，因此，它可以很容易地欺骗。
UDP packet or user datagram: UDP is an unreliable, connectionless protocol.
UD p包或用户数据报：udp是不可靠、无连接的协议。
Because IP is a connectionless service, no explicit connection status is available.
由于IP是无连接的服务，所以没有明显的连接状态。
The three channels are connection - oriented channel, connectionless channel and singal channel.
三种信道即为面向连接信道、无连接信道、信令信道。
UDP packets are connectionless and can be broadcast to all hosts instead of a single unicast stream.
UDP数据包无连接，可广播到所有主机，而非单一单播流。
Based on abstract, analysis and design, a simple model for connectionless service was also represented.
进而以无连接服务为例，通过抽象、分析、设计，建立了一个实验模型。
Furthermore, the connectionless transport service is also very similar to the connectionless network service.
另外，无连接的传输服务与无连接的网络服务也非常类似。
It emphasizes that Chinese TD-SCDMA should develop toward connectionless statistical packet multiplexing as early as possible.
文章强调指出中国的TD - SCDMA应尽快向无连接的分组统计复用方向演化。
The connectionless service's design and realization is a helpful reference for our later task to adding new network functions in the MCES.
无连接服务的成功实例为分析服务元网络体系结构的性能，以及以后在这个体系结构中添加新的网络功能提供了较好的参考。
Set forth a cipher synchronization scheme in the connectionless oriented IP layer, also present the state transform map of this secure protocol.
给出了面向非连接通信协议IP层的密码同步的解决方案和安全协议的运行状态图。
The design and realization of secure connectionless service is a helpful reference for our later task to adding new network functions in the MCES.
无连接数据的安全传输服务的成功实例为分析服务元网络体系结构的性能，以及以后在这个体系结构中添加新的网络功能提供了较好的参考。
As a method for measuring the performance of a network, it should not be relied on as a performance metric because it USES a connectionless transport mechanism.
它是一种测量网络性能的方法，不应该把它当作性能指标，因为它使用无连接的传输机制。
By definition, packets sent using connectionless transport are not guaranteed to reach their destination, and so dropped packets are allowed in the communication anyway.
根据定义，使用无连接传输机制发送的数据包并不保证能够到达目的地，在通信中允许丢失数据包。
Integrated Services Digital Network (ISDN); Signalling Systim No. 7; Signalling connection Control Part (SCCP) [connectionless and connection-oriented] to support international interconnection.
综合业务数字网(ISDN)；7号信令；支持国际互连信令连接控制部分(SCCP)[无连接和定向连接]。
Integrated Services Digital Network (ISDN); Signalling Systim No. 7; Signalling connection Control Part (SCCP) [connectionless and connection-oriented] to support international interconnection.
综合业务数字网(ISDN)；7号信令；支持国际互连信令连接控制部分(SCCP)[无连接和定向连接]。
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