Datagram,资料包,又称数据包、数据报、数据电报、数据段,在封包交换网络(package switched network )中的最小传输资料单元。 RFC_1594对资料包的定义如下:一个自我完备的独立资料实体,携带着足够的资讯,它能够从源头,选取路径,最终到达目的电脑,而不用依赖起始电脑、目的电脑以及传输网络预先交换的资讯。(摘自wikipedia...
https://www.cloudflare.com/learning/ddos/glossary/open-systems-interconnection-model-osi/ https://www.webopedia.com/quick_ref/OSI_Layers.asp https://www.geeksforgeeks.org/layers-of-osi-model/ https://www.plixer.com/blog/network-layers-explained/ https://www.runoob.com/tcpip/tcpip-tutorial....
computer network layers architecture TCP/IP 协议簇 计算机网络 分层架构 computer network layers architecture (TCP/IP) 计算机网络分层架构 TCP/IP 协议簇 OSI 模型(7 层) TCP/IP (4 层) Application (or Process)Internet Transport (or Host-to-Host) Internet Network Access (or Link) Application (e.g...
The OSI model defines seven layers: Layer 7: Application Layer Layer 6: Presentation Layer Layer 5: Session Layer Layer 4: Transport Layer Layer 3: Network Layer Layer 2: Data Link Layer Layer 1: Physical Layer Layer 7: Application Layer l Means for applications to access OSI environment ...
Each layer provides a unique set of security controls, and if one layer is breached, other layers provide additional protection.It applies to network security by combining various security mechanisms such as intrusion detection, prevention systems, firewalls, access controls, encryption, and regular ...
Functions:1.Encapsulation2.Fragmentationandreassembly3.Connectioncontrol4.Ordereddelivery5.Flowcontrol6.Errorcontrol7.Addressing8.Multiplexing9.Transmissionservices Applicationlayer •••••••2.1Principlesofnetworkapplications2.2WebandHTTP2.3FTP2.4DNS2.5P2Pfilesharing2.6SocketprogrammingwithTCP2...
2. Communication Network Protocols: New design contributions on all protocol layers except the Physical Layer, considering all types of networks mentioned above and their performance evaluation; novel protocols, methods and algorithms related to, e.g., medium access control, error control, routing, ...
a layered reference model modularization eases maintenance and updating of system change of implementation of layers service is transparent to rest of system Networks thus employ Protocol Layering Result: a Protocol Stack,a,4,Internet Protocol 3、 Stack,application: supporting network applications FTP, ...
The authors focus is on the why of network design, not just the specifications comprising todays systems but how key technologies and protocols actually work in the real world to solve specific problems. The new edition makes less use of computer code to explain protocols than earlier editions....
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