Re: Monitoring duration of a Tcp Flow

[George Riley <riley@cc.gatech.edu>]

You can define a "done" proc for TCP agents that will be called when there
is no more data to send on any connection.  See below...

Agent/TCP instproc done {} {
    global ns donecount
    $self instvar node_ dst_
    set peerid [expr $dst_ >> [Simulator set NodeShift_]]
    puts "Node [$node_ id], peer $peerid, all done at [$ns now]"
    incr donecount
    ... whatever else you need
}

George

					
			-George F. Riley (riley@cc.gatech.edu)

On Thu, 6 Jan 2000, Peter Pieda wrote:

> Hello,
> 
> Is it possible to measure the duration of a Tcp Flow?
> 
> I can get the Flow start time but I am having difficulty finding when the
> Flow 
> ends. I looked at using a Flowmon monitor but it tracks qualities in bytes
> or packets.
> 
> I'm working with the PagePool/WebTraf model. I am trying to determine
> the length of each transaction (or sending time for one object) during the
> course
> of a Web session.
> 
> Thanks
> 
> Peter
> ppieda@nortelnetworks.com
>