I have AT&T two-wire DSL router. It has four output Ethernet plugs. Now I
have like eight devices that need to talk to the two-wire modem. If I want all the
devices to get the most bandwidth available, would I take all the outputs from
the two-wire and put them into a 16-port switch? Will I get better bandwidth
with that configuration or does the number of outputs inputting into the switch
In this excerpt from
Answercast #18, I look at a few ways to connect through a 16-port switch to
a router and a possible small increase in speed from connecting directly.
Plug four router wires into my switch?
No, the short answer is no. It’s not what you want to do.
It sounds interesting. I’ve never actually thought of doing that. But the way packets get routed, it’s unlikely that you would see any real benefit from that connection. And it’s possible that could end up confusing things.
Use one connection from the router
My recommendation is that you take your 16-port switch, or whatever, and run one cable from it to one of those four outputs from the modem.
You can (I mean I’ve done this myself) if you like, pick a couple of what you might consider to be higher priority devices and rather than connecting them to the switch, connect them to one of those three remaining ports on the router.
Things should work just fine. They will still be able to talk to each other and to machines that happen to be out on the switch: if that’s what you need.
You’re just removing one little hop from those computers. That theoretically would speed up their ability to communicate to each other, and to the internet, by a very small amount.
A tiny speed increase
It’s very possible that you would never, ever notice. You would be just fine connecting all of your machines to the 16-port switch and then simply connecting that switch with a single cable to the router. That’s up to you.
Connecting four cables between the router and the switch is not something I would recommend.
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