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相关概念视频

Dosage Regimen: Fixed Dose01:01

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Fixed-dose regimens are a common approach to administer drugs to achieve and maintain desired levels of the drug in the body. In this dosing strategy, a specific amount of medication is given at regular intervals, often multiple times a day, to ensure a consistent drug concentration in the bloodstream.
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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
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Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
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In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
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Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
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Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
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DoSDefender:在软件定义网络中使用内核模式的TCP DoS预防.

Dongbin Wang1, Yu Zhao1,2, Hui Zhi3

  • 1School of Cyberspace Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China.

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概括
此摘要是机器生成的。

在软件定义网络 (SDN) 中,DoSDefender可以防止传输控制协议 (TCP) 拒绝服务 (DoS) 攻击. 这种内核模式框架有效地保护SDN基础设施,资源使用量低,对网络性能影响最小.

关键词:
连接代理代理连接代理拒绝提供服务.软件定义网络是软件定义的网络.

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科学领域:

  • 计算机科学 计算机科学
  • 网络安全 网络安全

背景情况:

  • 软件定义网络 (SDN) 面临性能瓶,原因是控制器资源和带宽有限.
  • 传输控制协议 (TCP) 拒绝服务 (DoS) 攻击通过压倒控制平面资源威胁SDN基础设施.

研究的目的:

  • 提出DoSDefender,一个高效的内核模式框架,用于防止SDN数据平面中的TCP DoS攻击.
  • 加强SDN安全性和稳定性,以应对复杂的网络威胁.

主要方法:

  • DoSDefender 在数据平面上运行,验证来自源的TCP连接建立尝试.
  • 它在内核空间中迁移连接和中继数据包,在没有控制平面修改的情况下遵守OpenFlow标准.
  • 该框架不需要额外的硬件,可以无地集成到现有的SDN架构中.

主要成果:

  • DoSDefender通过防止恶意连接进入SDN,有效地减轻TCP DoS攻击.
  • 该框架展示了低计算消耗,保持高的数据包转发吞吐量.
  • 实验结果证实了最小的连接延迟,确保网络性能得到保留.

结论:

  • 在SDN中,DoSDefender提供了一种高效和有效的解决方案来防止TCP DoS攻击.
  • 核心模式数据平面方法提供了强大的安全增强,而不会影响网络性能.
  • 该框架与OpenFlow的兼容性确保在现代SDN部署中具有广泛的适用性.