I'm not sure I understood what you try to do. Do you want to find out the topology of a (local) network, ie which node is connected to which other nodes?

If yes, I'd try a search for discover network topology, there is lots of prior art (though nothing built into Perl directly, maybe some modules exist).

If not, please try to describe in more detail what you have, and what you want to do or find out.

OK let me be more descriptive and make more sense. This is not for a networking application and is for an automation process for checking the connection between memories and the control registers associated with that particular memory. As there are thousands of memories in a design checking each of one these connections is a tedious process. so to automate this process of checking a perl script needs to written which should read the register information contained in file ".regs" dedicated only for control register information and check the connection with the particular memory associated with it.for doing this i need to know if there is any system task in perl which will give me the "hierarchy of the wire" *connecting* the register and memory. thank you

There surely isn't anything in core perl that does that for you. There might be something on CPAN, but since you are more familiar with the matter than I am, your chances of finding something fitting are higher than mine.

But since this is a rather special topic, it could very well be that such a thing doesn't exist pre-made for you.

Perl 6 - second systems done right