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区分确定性网络与传统网络
1、时延可控性
传统网络在数据传输时存在不确定的时延，而确定性网络通过严格控制传输路径和时间参数，确保数据传输的时延具有可预测性。
2、网络拥塞管理
确定性网络采用智能流量管理机制，可以有效预防和处理网络拥塞，确保数据的稳定传输。
3、资源优化
确定性网络通过优化网络资源的利用，确保实时通信和对延迟敏感的应用能够在高效的网络环境中运行。
确定性网络的主要特征
时间敏感性：确定性网络注重数据传输的时间特性，确保实时数据在网络中的传输遵循严格的时间要求。
流量工程：通过智能的流量工程和路径规划，确定性网络可以避免拥塞，并确保网络资源的优利用。
硬实时通信：确定性网络支持硬实时通信，即对于某些应用，数据的传输必须在预定的时间内完成，确保实时性和可靠性。
可预测性和稳定性：通过严格的协议和机制，确定性网络提供了更高的可预测性和稳定性，使其成为对延迟敏感的应用的理想选择。
在理解了确定性网络的定义和主要特征后，让我们深入探讨其工作原理，以了解它是如何实现这些特征的。
确定性网络的工作原理
确定性网络的工作原理涉及多个技术方面，从流量控制到路径规划，以下是确定性网络的核心技术和工作原理：
时间敏感网络协议
确定性网络使用专门设计的时间敏感网络协议，以确保数据在网络中的传输能够遵循时间要求。时间敏感网络协议是确定性网络的基础，这些协议负责调度数据包的传输时间，确保实时数据在网络中的传输能够在预定的时间内达到目的地。其中，Time-Sensitive Networking (TSN) 是一种常用的时间敏感网络协议，它定义了多个标准，包括IEEE 802.1Qbv（用于基于时隙的流量调度）、IEEE 802.1Qbu（用于削减帧时延）等，以实现对时延敏感的通信。
Distinguishing deterministic networks from traditional networks
1. Time delay controllability
Traditional networks have uncertain latency during data transmission, while deterministic networks ensure predictability of data transmission latency by strictly controlling transmission path and time parameters.
2. Network congestion management
Deterministic networks adopt intelligent traffic management mechanisms, which can effectively prevent and handle network congestion, ensuring stable data transmission.
3. Resource optimization
Deterministic networks optimize the utilization of network resources to ensure real-time communication and delay sensitive applications can operate in an efficient network environment.
The main characteristics of deterministic networks
Time sensitivity: Deterministic networks focus on the temporal characteristics of data transmission, ensuring that real-time data transmission in the network follows strict time requirements.
Traffic Engineering: Through intelligent traffic engineering and path planning, deterministic networks can avoid congestion and ensure optimal utilization of network resources.
Hard Real Time Communication: Deterministic networks support hard real time communication, meaning that for certain applications, data transmission must be completed within a predetermined time to ensure real-time performance and reliability.
Predictability and Stability: Through strict protocols and mechanisms, deterministic networks provide higher predictability and stability, making them an ideal choice for delay sensitive applications.
After understanding the definition and main features of deterministic networks, let's delve deeper into their working principles to understand how they implement these features.
The working principle of deterministic networks
The working principle of deterministic networks involves multiple technical aspects, from flow control to path planning. The following are the core technologies and working principles of deterministic networks:
Time sensitive network protocol
Deterministic networks use specially designed time sensitive network protocols to ensure that data transmission in the network follows precise time requirements. Time sensitive network protocols are the foundation of deterministic networks, which are responsible for scheduling the transmission time of data packets, ensuring that real-time data transmission in the network can reach its destination within a predetermined time. Among them, Time Sensitive Networking (TSN) is a commonly used time sensitive network protocol that defines multiple standards, including IEEE 802.1Qbv (for slot based traffic scheduling), IEEE 802.1Qbu (for reducing frame delay), etc., to achieve delay sensitive communication.
