A 768k T-1 or Cablemodem line is going to give you around 90-95Kbytes/sec on a download, whereas your DSL is only turning out around 70Kbytes/sec. The reason for this is pretty straightforward: DSL uses ATM connections between the Central Office DSLAM and the ISP's router. Since ATM only works in packets 53 bytes large, a packet of 1500 bytes gets chopped up into a bunch of other packets, each with it's own control and error markers, and doesn't actually get reassembled until it arrives at the DSL modem. It's worse, too, if you've got PPPoE, as that adds in it's own overhead.
The net result is, if you've got a DSL line of speed X, and a Cable line of speed X, then as long as the cable line isn't on an overloaded cable node, the cable line will be faster, because it doesn't have to convert to a half-dozen different Layer 2/3 Protocols along the way.
Oh, and yes, some DSL modems do have firewall/NAT routers built in these days, but they tend not to work too well for gaming applications.
George
Peter Nosko wrote:
pn] Thanks, all. I'm ashamed that I was unable to do that math myself.
--- [EMAIL PROTECTED] wrote:
Do you run your DSL modem as a modem only, or does it do DHCP, DNS and firewall as well?
pn] Not sure what you mean (do DSL modems do all that?). My LEAF boxes do the DHCP, DNS and firewall (and good 'ole routing).
pn] Hey Charles, E2B is still solid. ;)
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----- Peter Nosko ([EMAIL PROTECTED]) This is a good place for a tagline.
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