First time here? Check out the FAQ!
THIS IS A TEST INSTANCE. Feel free to ask and answer questions, but take care to avoid triggering too many notifications.
Ask Your Question
0

how to calculate the Tsval for real time

Currently, i install TCPDUMP to get all the packets between a cellphone and a camera. i want to know when a packet is sent from the camera, how can i use the value TSVAL,What is the unit? ms or us or any other unit based on the processor?

Flycow's avatar
1
Flycow
asked 2018-09-18 17:49:43 +0000
edit flag offensive 0 remove flag close merge delete

Comments

add a comment see more comments

1 Answer

0

While the TCP timestamp option is defined in section 3.2 of RFC1323, "TCP Extensions for High Performance", the timestamp clock itself is described later in section 4.2.2, with the following statement of particular relevance:

     Based upon these considerations, we choose a timestamp clock
     frequency in the range 1 ms to 1 sec per tick.

Basically, the value is implementation dependent.

cmaynard's avatar
11.1k
cmaynard
answered 2018-09-18 19:22:51 +0000
edit flag offensive 0 remove flag delete link
more

Comments

Thank you very much!

Flycow's avatar Flycow (2018-09-20 02:58:26 +0000) edit
more
  • delete
add a comment see more comments

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss.

Add Answer