TCP-Connection Establishment = How to measure time based on Ping RRT?

Posted by Tom on Stack Overflow See other posts from Stack Overflow or by Tom
Published on 2010-05-21T17:36:27Z Indexed on 2010/05/21 17:40 UTC
Read the original article Hit count: 551

Filed under:

sockets

Hello Experts,

I would be greatful for help, understanding how long it takes to establish a TCP connection when I have the Ping RoundTripTip:

According to Wikipedia a TCP Connection will be established in three steps:

1.SYN-SENT (=>CLIENT TO SERVER)
2.SYN/ACK-RECEIVED (=>SERVER TO CLIENT)
3.ACK-SENT (=>CLIENT TO SERVER)

My Questions:

Is it correct, that the third transmission (ACK-SENT) will not yet carry any payload (my data) but is only used for the connection establishement.(This leads to the conclusion, that the fourth packt will be the first packt to hold any payload....)
Is it correct to assume, that when my Ping RoundTripTime is 20 milliseconds, that in the example given above, the TCP Connection establishment would at least require 30 millisecons, before any data can be transmitted between the Client and Server?

Thank you very much

Tom

Related posts about sockets

Performance implications of Synchronous Sockets vs Asynchronous Sockets

as seen on Stack Overflow - Search for 'Stack Overflow'
We are trying to build an SMTP Server to receive mail notifications from various clients over internet. As each of the communication will be longer and it needs to log everything, doing this Asynchronous way is little challenging as well as by using Socket's Asynchronous methods we are not sure of… >>> More
Multiple INET sockets (mulple IP's too) connected to UNIX sockets

as seen on Server Fault - Search for 'Server Fault'
HOST = same host all the time, accepts multiple connection. I have a dedicated server and I will buy extra IP's. Socket 1 connects to HOST:PORT, from IP-1 Socket 2 connects to HOST:PORT, from IP-1 Socket 3 connects to HOST:PORT, from IP-1 Socket 4 connects to HOST:PORT, from IP-2 Socket 5 connects… >>> More
Multiple INET sockets (mulple IP's too) connected to UNIX sockets

as seen on Stack Overflow - Search for 'Stack Overflow'
HOST = same host all the time, accepts multiple connection. I have a dedicated server and I will buy extra IP's. Socket 1 connects to HOST:PORT, from IP-1 Socket 2 connects to HOST:PORT, from IP-1 Socket 3 connects to HOST:PORT, from IP-1 Socket 4 connects to HOST:PORT, from IP-2 Socket 5 connects… >>> More
Do WebSockets have exclusive access to their sockets?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm curious to know if, after a WebSocket has been established (after having received the proper handshake from a server that supports them), whether or not the TCP socket used by the "WebSocket connection" is used exclusively by the WebSocket, or if the browser may still make regular HTTP requests… >>> More
What Parallel computing APIs make good use of sockets?

as seen on Stack Overflow - Search for 'Stack Overflow'
My program uses sockets, what Parallel computing APIs could I use that would help me without obligating me to go from sockets to anything else? When we are on a cluster with a special, non-socket infrastructure system this API would emulate something like sockets but using that infrastructure (so… >>> More

Developer IT

TCP-Connection Establishment = How to measure time based on Ping RRT? - Developer IT

TCP-Connection Establishment = How to measure time based on Ping RRT?

sockets

Related posts about sockets

Performance implications of Synchronous Sockets vs Asynchronous Sockets

Multiple INET sockets (mulple IP's too) connected to UNIX sockets

Multiple INET sockets (mulple IP's too) connected to UNIX sockets

Do WebSockets have exclusive access to their sockets?

What Parallel computing APIs make good use of sockets?

Categories cloud