Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have configured a simple LAN using Ubuntu router. We know that if we don't impose any restriction, total bandwidth of Internet will be distributed among LAN user.

If any user try to get half of my total bandwidth, Is it possible?

share|improve this question
1  
please clarify, I couldn't figure out what you're asking –  ptman Apr 20 '12 at 8:48

1 Answer 1

up vote 3 down vote accepted

Yes. Essentially, the total bandwidth will be distributed amongst all competing users, so if someone has an application that talks enthusiastically enough to the internet, and if noone else is doing so, she'll get all the bandwidth.

How things are decided if the bandwidth is contended is a long and complex issue, but the practical upshot is that unless you decide to prioritise otherwise, two equally-competing users will likely end up sharing the bandwidth 50:50; three competing users, 33:33:33, and so on. Not all competing users will be equally-competing.

If you want to prioritise some users, or classes of traffic, over others, I recommend close study of tc, the traffic-shaping tool. A very simple writeup where I implemented some low-level prioritisations can be found in this technote.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.