[ns] Re: your mail

[Haobo Yu <haoboy@isi.edu>]

Usually Agent models a single transport protocol, e.g., TCP. It's not
intended to be used to _create_ many tcp/udp connections. Nor can you
directly create a tcp agent from c++ without making an otcl call.

You can take a look at webcache/webtraf.{h,cc} and tcl/webtraf/webtraf.tcl
to see an example of dynamically create/remove multiple tcp connections. 

> I am implementing a new protocol in ns which dynamically creates TCP
> connections.  This protocol is NOT an application, but is expected to
> provide a transport mechanism for applications to use.  I have created C++
> code in ns to implement this new agent class.  This agent will at some
> point recieve a connection request from another node.  This is the stimulus
> for generating a TCP connection with that node (to establish a reliable
> means of communication).  Currently,  the class is based on the base Agent
> class and I am using the send() function to send data to the remote node.
> Since my links are reliable at this time, this works fine.  But, I'd like
> to introduce unreliable links and complete the protocol with the TCP
> connection creation ability within the C++ agent code.  Has anyone had any
> experiences with this or is there some sample agent code I can look at to
> get some ideas?
> 
> I appreciate any ideas....
> 
> Adolfo F. Rodriguez
> 
> 
> 
>