-
Anonymous users2024-02-08User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides the basic mechanism for transmitting datagrams between applications.
The format of the packet.
Each UDP packet is called a user datagram: it is divided into two parts: the header and the data area. Figure 6-14 shows a UDP packet format, which contains the source and destination ports, the packet length, and the sum of UDP checks.
The Source Port and Destination Port fields contain 16-bit UDP port numbers, which allow multiple applications to multiplex the same transport layer protocol, the same transport layer protocol, and distinguish different applications only by different port numbers.
The length field records the total length (in bytes) of the UDP packet, including the 8-byte UDP header and the data portion that follows it. The minimum value is 8 (i.e. the length of the packet header) and the maximum value is 65,535 bytes.
The content of the UDP checksum (checksum) is beyond the scope of the UDP data packet itself, in fact, its value is obtained by computing the UDP data report and a pseudo-header. However, the checksum calculation method is the same as the general one, which is the sum of accumulation.
It is not dangerous and can be opened.
-
Anonymous users2024-02-07This kind of problem1 is common in Windows XP. If this is the case for you, follow the steps below.
1;Open the Internet Neighbor Press on the left Check Network Connection Right-click Local Connection Properties and then click Advanced First of all, you must turn on the firewall (remember that it must be turned on, otherwise you will not be able to complete the next operation) After clicking on the settings, the service appears There is a description added below to play Exciting football IP address on the outside side on the outside side on 8411 The internal end is also 8411 Click Confirm and exit OK
I've tried this, and I've had the same problem, and it's fine to change it.
-
Anonymous users2024-02-06Based on the connectionless datagram protocol, it is a common network protocol, and most of the software runs the UDP protocol, QQ is. It is recommended to open it, rest assured that there is no danger.
-
Anonymous users2024-02-05The UDP protocol generally refers to UDP
UDP is the abbreviation of User Datagram Protocol, Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the OSI (Open System Interconnection) reference model, providing transaction-oriented simple and unreliable information transmission services, IETF RFC 768 is the formal specification of UDP. The protocol number of the UDP packet is 17.
The Internet Protocol set supports a connectionless transport protocol called User Datagram Protocol (UDP). UDP provides a way for applications to send encapsulated IP datagrams without having to establish a connection. RFC 768 describes UDP.
-
Anonymous users2024-02-04UDP is a user packet protocol, a connectionless transport layer protocol in the OSI reference model that provides a simple and unreliable transaction-oriented messaging service. UDP is used to support network applications that need to transfer data between computers; Many network applications in the client server mode, including the network conference system, need to use the UDP protocol.
UDP is a connectionless transport layer protocol in the OSI reference model, which is mainly used in transmissions that do not require packet sequential arrival, and the checks and sorting of packet transmission order are completed by the application layer, providing a simple and reliable information transmission service for transactions. The UDP protocol is basically the interface between the IP protocol and the upper-layer protocol. The UDP protocol is applicable to multiple applications running on the same device.
Features of UDP::
1. UDP is connection-free, no need to establish a connection before sending data, and do your best to provide data transmission services to reduce overhead and latency before data sending. As long as the IP and port of the other party are known, the network can send data to the receiver as much as it can reach.
2. UDP has no congestion control, fast transmission speed, and supports a pair.
One-to-many, many-to-one, and many-to-many interactive communications. Since there is no connection established for the transmitted data, there is no need to maintain the connection state, including the sending and receiving status.
What is the HTTP protocol in an RL address?
Hello dear, I'm glad to serve you, and will try to help you answer it!The HTTP protocol in the RL address is the HTTP protocol that accesses resources through URLs, and URLs become unified resource locators, sometimes commonly known as web page addresses. HTTP uses Uniform Resource Identifiers (URIs) to transfer data and establish connections. >>>More
Hello, the VAM has nothing to do with gambling, but when there is a certain uncertainty about the future profitability of the enterprise, it sets certain terms to achieve the reasonableness and fairness of the investment transaction as much as possible. A VAM is an agreement between the investor and the financier to enter into a financing agreement due to uncertain circumstances in the future, and the financier can exercise a right if the agreed conditions appear. If the agreed conditions do not appear, the investor exercises a right. A VAM is actually a form of option, which can not only protect the interests of the investor, but also play a certain incentive role for the financier. >>>More
The format of the agreement is generally as follows: >>>More
The procedures and documents required for an uncontested divorce are: >>>More
Now you sign, no matter whether you sign in person or how to sign, as long as you sign it yourself, then there is nothing to say, now at this time the school will stand with the unit, if you breach the contract, it will affect the employment rate of the school, if no one is the school, the school will not be so protective of you, so you still follow the procedure, a thousand yuan, break the fortune and avoid disasters, but if you look for someone, it's okay if you don't pay for it, but you have to find a way to get the agreement back, so it depends on whether you have someone or not, If there is no one, let's follow the procedure.