layer 2 tunneling protocol

Chapter Review:"TCP/IP Detailed Volume 1: Agreement" 1th Chapter Overview-Reading Notes"TCP/IP Detailed Volume 1: Protocol" chapter 2nd link layer-Reading notes"TCP/IP Detailed Volume 1: Protocol" 3rd IP: Internet Protocol (1)-Reading notes"TCP/IP Detailed Volume 1: Protocol

This reference article is mainly used for the diffusion of knowledge points in subsequent articles, in this special backup and diffusion learning Exchange.There are TCP protocols and UDP protocols in the transport layer.1.UDP IntroductionUDP is a transport layer protocol, and the TCP protocol is in a hierarchy, but unl

end of the datagram (end character 0xc0) Point-to-Point Protocol PPPThe defect of slip has been modified. Loopback interface (Loopback Interface)Allow client programs and service programs running on the same host to communicate over TCP.Most systems assign 127.0.0.1 to this interface and are named localhost. An IP datagram passed to the loopback interface cannot appear on any network. Maximum Transmission Unit MTUEthernet and 802.3 have a limit

iOS layer seven (1) Physical layer--physicalThis is the lowest layer of the entire OSI reference model, and its task is to provide a physical connection to the network. Therefore, the physical layer is built on the physical medium (not the logical

The data link layer combines bits into bytes and combines bytes into frames. Frames are used at the data link layer. packets transmitted from the network layer are encapsulated into frames for transmission based on the type of media access. An Ethernet site uses a set of digits called Mac frames to transmit data frames between sites. In the frame format, CRC

This reference article is mainly used for the diffusion of knowledge points in subsequent articles, in this special backup and diffusion learning Exchange.The internetwork includes: IP, ICMP, IGMP, and protocols that are actually working on the internetwork at the link layer, ARP and rarp, and so on.1.IP protocolEach interface on the Internet must have a unique Internet address (also known as an IP address). The IP address is longer than the bit. The

PrefaceReview the knowledge of the computer network and recordBodyDefinition: The HTTP protocol (hypertext Transfer Protocol, Hypertext Transfer Protocol) is the transfer protocol used to transmit hypertext to the local browser from the WWW server. I. HTTP request process (non-persistent connection)The process of acces

OSI (open System interconnect) is an open communication system Interconnect Reference Model, which is a well-defined protocol specification. The OSI model has 7 layers of structure, each of which can have several sub-tiers. The OSI layer 7 from top to bottom is 7 Application layer 6 represents Layer 5 session

total of 8 bytes, and these 8 bytes are divided into 4 fields: (1) The source port 2 bytes in the other side need to reply to be available, not required when the full 0; (2) The destination port 2 bytes must, is also the most important field; (3) length 2 bytes length value includes header and data pa

After checking the upper-layer protocol, the link layer uploads data packets to the corresponding upper-layer protocol layer, which is the IP layer

The network architecture is a complex structure. Complex work can be completed only when multiple protocols are used together. In the transport layer, we mainly introduce the content related to TCP and UDP. Although there is always interaction between the two protocols, they are essentially irreplaceable and clearly defined. Transport Layer Protocol TCP and UDP E

Layer 7 of OSI is 7 Application Layer 6 presentation layer 5 Session Layer 4 Transport Layer 3 network layer 2. Data Link Layer 1 Physical

merchant agrees to the cardholder's purchase request, the SET application layer protocol uses dual signatures to solve this problem ｡ ◆ Main features of the SET application layer protocol (1) Information Confidentiality. One important feature of SET is that the cardholder's credit card number is provided only to the b

Poor application-layer communication protocol design Last year and this year respectively participated in two companies' projects, both of which involved communication programming, Ethernet communication, or serial communication. Communication protocols are required for communications. I personally think that protocol design is a very serious task. I need to und

functions.---------------------------------------------------------------------------------- 2. Introduction to layer-2 forwardingThe forwarding feature of the Layer 2 switch conforms to the 802.1d bridge protocol standard.　　The

In the previous article, we briefly introduced the content of the CAN bus protocol. Now let's take a look at the physical layer and packet type of the CAN bus protocol. Based on my previous learning experience, I know that in the protocol, we usually use the packet structure and frame form for data transmission. The CA

Currently, most network applications have been structured and designed on the seventh layer. This article also explains the layer-7 Protocol application for TCP/IP. First, let's get familiar with some network conditions. Currently, bandwidth management only stays at Layer 4. When BT downloads occur, dynamic IP network

than UDP because UDP does not guarantee complete data arrival, but it can increase the rate of transmission. So everyone will think, it must be a packet error-free transmission good, then what is the UDP ah? In fact, the real-time nature of packet transmission is more important than accuracy. For example, you call, even if there are a few words inaudible, but the general content is to know, if you repeat the transmission of these sounds, but will listen to the confusion, in addition to our comm

From (http://tcpip.info-weblog.org/protocol-basic-168) In the "what is the TCP/IP protocol" sectionArticleThe TCP/IP protocol also has a theoretical hierarchical definition, such: TCP/IPProtocolProtocols in the system are classified into the link layer, network layer