bandwidth 1 over N

[Lennart Sorensen]

On Thu, May 07, 2009 at 09:38:10PM -0400, James Knott wrote:
> QoS generally gives priority to certain types of traffic.  You can
> configure "round robin" queuing, which ensures every device gets to
> send, though ordinary switches do a decent job of that.  If one computer
> has a need for lots of traffice at a given time, and the rest little,
> why shouldn't it get most of the bandwidth?  It's not a case of the one
> with most the traffic not allowing the others to have some.  Switches
> tend to handle packets on a first come, first serve basis, where each
> device has equal access.  It is possible to configure other situations,
> with better quality switches.  TCP also has mechanisms built in, to
> detect bottlenecks and throttle accordingly.

A switch isn't useful for helping a wan link.  An ftp or http or similar
connection can easily fill all the buffers on the wan port and make it
very hard to any other connections to get started.

So qos with tc in linux can be very helpful.

-- 
Len Sorensen
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