RE: [ns] Serializing TCP Communications

["Chad Fox" <chad.fox@mankato.msus.edu>]

-----Original Message-----
From: owner-ns-users@ISI.EDU [mailto:owner-ns-users@ISI.EDU]On Behalf Of
Ratul Mahajan
Sent: Saturday, October 28, 2000 11:48 PM
To: Chad Fox
Cc: ns-users@ISI.EDU
Subject: Re: [ns] Serializing TCP Communications



Take a look at the "done" function of TCP. This is an upcall to Tcl when
the tranfer ends (receipt of last ack). You could define your own "done"
function in Tcl in which you connect your source TCP agent to the
sink of the next node and so on.

	-ratul

On Sat, 28 Oct 2000, Chad Fox wrote:

> I would like to simulate a collection of nodes that each have a
> list of communications to perform.
>
> A given node may have a list of tasks as follows:
> - Send n packets to node i
> - Send m packets to node j
> - Send p packets to node k
>
> I need to tell the node to start it's communication and have it
> proceed with the communications serially. Only when the first task is
> completed, can it begin the next task. In other words, the node MUST wait
> until all communication has been completed before moving on
> (that is, ACKs must be received before starting the new task).
>
> Is there a why that this can be implemented in a tcl script so that
> multiple nodes can serialize their tasks?
>
> Thank you,
>
> Chad
>
>