nanog mailing list archives

Re: home network monitoring and shaping


From: Sean Lazar <knife () toaster net>
Date: Wed, 13 Feb 2013 10:50:50 -0800

I've had good luck with a via mini ITX board and http://ipcop.org/

This was in 2005 so things may have changed/progressed.

It wasn't hard to give out some static dhcp leases and look at graphs
and see who the bandwidth piggies were, and then set some throttling.
Housemates weren't kicking down any money for the DSL line and running
p2p sharing apps... Not good for latency sensitive gaming!

Sean

On 2/13/13 9:40 AM, Michael Thomas wrote:
On 02/12/2013 04:46 PM, Joel Maslak wrote:
Large buffers have broken the average home internet.  I can't tell
you how
many people are astonished when I say "one of your family members
downloading a huge Microsoft ISO image (via TCP or other
congestion-aware
algorithm) shouldn't even be noticed by another family member doing web
browsing.  If it is noticed, the network is broke.  Even if it's at
the end
of a slow DSL line."

This is true only to a point: if you have 5 people streaming movies
on a 2 people broadband you're going to have problems regardless of
the queuing discipline. That said, it's pretty awful that in this day and
age that router vendors can't be bothered to set the default linux kernel
queuing  parameters to something reasonable.

In any case, my point was really about wanting to deal with what happens
when your isp bandwidth is saturated and being able to track it down
and/or
kill off the offenders. I haven't bought a router in the last year or
two as
"apps" have become de rigueur, but it sure seems like it would be nice to
be able to do that. I'm pretty sure that I still can't (= being a dumb
consumer,
not a net geek jockey), but would like to hear otherwise.

Mike





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