TCP用一个校验和函数来检验数据是否有错误,在发送和接收时都要计算校验和。 2.2 IP—网络层 网络协议(英语:Internet Protocol,缩写:IP),又称互联网协议,是用于分组交换数据网络的协议[4]。 IP是在TCP/IP协议族中网络层的主要协议,任务仅仅是根据源主机和目的主机的地址来传送数据。为此目的,IP定义了寻址方法和数...
inflight= bbr_bdp(sk, bw, gain);//通过rtt和bw算出bdp//在一些高速场景(tso)下需要补偿一点inflight =bbr_quantization_budget(sk, inflight);returninflight; }/*With pacing at lower layers, there's often less data "in the network" than * "in flight". With TSQ and departure time pacing ...
At the next lower layer, IP adds its own information over the data coming from transport layer. This information would help in packet travelling over the network. Lastly, the data link layer makes sure that the data transfer to/from the physical media is done properly. Here again the communi...
as shown in the diagram above, the application and network access layer are broken down to define more functions. The application layer is broken into the application, presentation and session layers, while the network access layer is broken up into the ...
TCP/IP Protocol Architecture TCP/IP protocols map to a four-layer conceptual model known as the DARPA model, named after the U.S. government agency that initially developed TCP/IP. The four layers of the DARPA model are: Application, Transport, Internet, and Network Interface. Each layer in...
TCP/IP Protocol Architecture TCP/IP protocols map to a four-layer conceptual model known as the DARPA model, named after the U.S. government agency that initially developed TCP/IP. The four layers of the DARPA model are: Application, Transport, Internet, and Network Interface. Each layer in...
A B C xii z/VM: TCP/IP Diagnosis Guide Syntax Diagram Description Optional Choice: When an item is below the line, the item is optional. In this example, you can choose A or nothing at all. When two or more items are in a stack below the line, all of them are optional. In ...
How the Term "internet" Is Used in This Book In this book, an internet is a logical collection of networks supported by routers, gateways, bridges, hosts, and various layers of protocols, which permit the network to function as a large, virtual network. Note: The term "internet" is used...
The browser requests the establishment of an SSL connection and sends a random number to the server-Client random and the encryption method supported by the client, such as RSA encryption, which is transmitted in plain text at this time. ...
The original TCP/IP model had 4 layers, the updated model has 5. See the diagram below for how the old and new layers relate (The new TCP model is on the right). The reason for the update is because originally Ethernet over copper cable was the only mainstream standard for OSI layers...