Shulou(Shulou.com)06/03 Report--

Today, I would like to talk to you about what timewait means. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something from this article.

1. IME_WAIT means to end the connection.

2. Take the time_wait status in tcp as an example:

1. To put it simply: time_wait status is the state that server enters after sending FIN to client to terminate the connection after four waves.

2. From the figure above, we can see that the time_wait state exists when client receives the serverFin and returns the ack packet. When it is in the time_wait state, we cannot create a new connection because the port is occupied.

3. When the TCP connection is disconnected, the end that executes the active shutdown will enter the TIME_WAIT state, knowing that there are two reasons for waiting for the 2msl (maximum lifetime of each section) TIME_WAIT state:

(1) reliable termination of TCP full-duplex connection

(2) allow the old repetitive segments to disappear in the network

Extended data:

TIME_WAIT status: as shown below

Now the computer ends accessing the FTP service of 192.168.1.10 from 192.168.1.1. In the local TCPView, you can see that the port status has changed to TIME_WAIT. TIME_WAIT means to end the connection. It indicates that port 21 has been accessed, but the access is over.

After reading the above, do you have any further understanding of what timewait means? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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