Re: can I use tcl only and no C++

[John Heidemann <johnh@ISI.EDU>]

On Mon, 20 Sep 1999 12:51:25 PDT, Alaa Elkholy wrote: 
>Hi,
>I am thinking to do something but I would like to
>consult you first to see if it is possible or not. I
>want to write my own mobile ip simulation modules. I
>want to write a simplified mobile ip modules to serve
>our research group goal. So, I am not gonna simulate
>the whole things in a real fashion. I will simplify it
>as possible. I want to simulate the main three nodes
>in mobile IP; FA, HA and mobile node. I want for each
>node type to create a new objec that inherits the node
>object supplied by the ns2 and add to it the specific
>features according to each node function. The question
>is; is it  possible to do so using the tcl only
>without the need to write the code by C++.

Possibly.  The question is hard to answer without studying exactly
what you want to measure.

However, in general, we recommend putting per-packet processing in C++
since per-packet transitions into Tcl are very expensive.
(There was some recent mailing list discussion about this topic.)

Ns currently contains a C++-level Mobile IP which you may also want to
look at.

   -John Heidemann