Need Basic Idea About Port Multiplexing
 

Hi,

can someone please tell me what exactly is port multiplexing and how do we do it. I need basic idea about how its done.

Thanks

You don't know what it is, but you know you have to do it? What kind of port? Serial? TCP/IP? Network? What are you trying to accomplish? What version and distro of Linux?

For generic questions where you don't have to provide any information, try Google.

Usually, port multiplexing refers to several clients talking over the same port (sharing it). But the way to do it depends on the port in question, as was mentioned above.

I dont have to implement this lol. I just want to know about it, I came to know about port multiplexing from my friend but he doesnt even have much info about it. I dont even know the difference between serial and network port. I have idea about TCP/IP Port.

So tell me about TCP/IP port and doing this on RHEL.

Try Google. Go look it up, and read up on computer basics.

RHEL is an enterprise version of Linux that you have to pay for, and if you don't know the different between a serial port and network port, you should start with some basics about computers first, then a free version of Linux (Centos, OpenSuSE, etc.).

Thanks for informing that RHEL is Enterprise Linux and also I have to pay for it. Oh My God! I never knew it...

Not all have good networking info so I asked for help. If you feel so hard to explain things then please don't reply that will save scrolling in thread.

Thanks for suggesting to try google. I appreciate your help :).

Okay people I know now what is serial and network port. I'm interested in multiplexing a network port. So can some throw some light this please.

It would probably be good for you, too, if you didn't put sarcasm into your replies.

Is multiplexing hard to explain? No, but if you don't know the difference between a serial port and a network port, it makes it VERY hard to explain. Network listeners, the things that monitor a port, unless they're in very, VERY high traffic situations, wouldn't need to 'multiplex'.

You were pointed to sources of information, and distros of Linux that would help you build your knowledge. Instead you come back with sarcasm and your question still makes no sense. You said you don't have to implement this, but you have "idea about TCP/IP port".

Good luck. Perhaps someone else would like to babysit you.

TBone, have you any idea what you sound like?? I assume not or you wouldn't be chasing someone who's asked a simple, albeit possibly overly brief, question in good faith.

Port multiplexing is just ports in themselves, it's nothing special, just the concept of attaching a port number to an ip connection in order to differentiate the service to connect to. e.g. httpd on port 80, ssh on port 22, smtp on port 25. That's port multiplexing, simple.

Does this require any kind of special hardware? Or is it that we just assign individual service to each port and n number of clients connect to it.


Thanks for your help.

This might be useful to read... http://gaia.cs.umass.edu/kurose/transport/fund.html

Thanks alot farslayer.

no, it's just what tcp / udp ports are, they are there for multiplexing and nothing else at all.

Thanks, I will read more about it in the link farslayer provided.