[Asterisk-Users] Bandwidth control on a home office network

[gramels]

you might consider http://m0n0.ch/wall on a soekris.com or
pcengines.ch board which does nice trafficshaping for little money.
m0n0wall is a freebsd based opensource firewall appliance


On Sat, 16 Oct 2004 12:25:06 -0600, Rich Adamson <radamson at routers.com> wrote:
> > I have a Grandstream ATA today connected to my 750k broadband
> > connection via an older router / firewall that doesn't have any QoS /
> > ToS capability.  It works fine apart from the obvious problem of when
> > large emails come in or somebody else on the network starts d/l-ing
> > something big off the web.
> >
> > I'm wondering whether to swap the router for a Cisco in order to
> > introduce some local bandwidth control.
> >
> > Alternatively I was wondering if I picked up a Cisco 7960 handset
> > instead - is the 2nd ethernet port routed through the device, or does
> > it just act as an Ethernet repeater, i.e. if I arranged the handset in
> > the network as below would I get bandwidth prioritisation for the 7960?
> >
> > [CABLE MODEM]------[7960]-------[FW / ROUTER / HUB]--------[REST OF MY
> > NETWORK]
> 
> QoS, regardless of whether its based on the IP header TOS bits or on
> specific tcp/udp port numbers, essentially prioritizes the "outbound"
> flow of data packets, sending high priority packets before lower
> priority packets. It does nothing for inbound data such as downloads
> to your site.
> 
> Most broadband connections have a different upload vs download speed,
> where usually the download speed is substantially greater then the
> upload speed. E.g., not uncommon to see DSL or Cable modems limited
> to 758k down and 128k/256k upload speeds. QoS may help with prioritizing
> traffic through the 128k/256k. However, your internet service provider
> would need to prioritize the download traffic for you.
> 
> There are some rather expensive devices that you can install that will
> rate limit both upload and download traffic. Those devices artifically
> control the download traffic by withholding TCP acknowledgment packets,
> etc. Not sure how effective they are though.
> 
> 
> 
> 
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