Need more Ports!!!!

Fritchard · Jun 16, 2016

So my router has 4 ethernet ports... it is the WRT AC1900 Linksys router. All 4 ports are being used. I have one ethernet going to one of my Xbox One and the others go to other devices around the house. What I want to do is have an ethernet cable going to my PC and my Xbox 360 all at the same time. I want to be able to use my PC while gaming on my Xbox One. I can get up to 100 Download and usually hover around 5-15 upload.

All help would be greatly appreciated! Also, don't break my wallet.

gerr · Jun 16, 2016

Simple, just buy a 8+ port switch. Make a single connection from your router to the switch, then plug everything else into the switch.

Math Geek · Jun 16, 2016

if they are close together and you have 2 ethernet ports on your pc, you can use internet sharing to pass the access to the xbox from the pc. i did this years ago with the 360 before wifi came standard.

takes some configuring to get the ports forwarded but if you can handle that, then it's not too bad to do.

second idea is to get another router/access point for that area. will let you have the single line in and give you more outputs for those devices.

XaveT · Jun 16, 2016

All you need is a gigabit switch (well, and one more ethernet cable). I like TP-LINK as a brand, but there are many good ones out there. Here's one for 20, 10 after rebate if you do those.

Switch: 20, 10 after rebate
http://www.newegg.com/Product/Product.aspx?Item=N82E16833704043

the cable: $3
http://www.newegg.com/Product/Product.aspx?Item=N82E16812119169

All you do is plug in a cord from your router to any port on the switch, then plug everything else into the switch. It's really easy to do!

Fritchard · Jun 16, 2016

gerr :

So what would be a good switch? I know what the different numbers are to an extent, but not enough to make my own decision. I don't want to loose speed through this switch, though.

Fritchard · Jun 16, 2016

XaveT :

so will this limit the speed I get from my router, I game very competitively and need my speed, I guess I could use the switch for other devices in the house and use the router just for my setup.

InvalidError · Jun 16, 2016

Practically all unmanaged switches are nothing more than a Realtek or similar 5-10 ports monolithic switch IC with support components and will perform very similarly. Pick your preferred brand or whichever has the longest manufacturer warranty.

The store-and-forward delay of these chips is in the order of 100 microseconds, which is negligible next to a 30-100ms in-game ping.

Fritchard · Jun 16, 2016

InvalidError :

Could your provide an example please? I hear some switches have horrible whines or rings

InvalidError · Jun 16, 2016

Just buy one from Amazon which is "Fulfilled by Amazon" and return it if you aren't happy with it. You could go with the $10 NewEgg one too, in which case returning it would be more expensive than throwing it in the bin.

In all likelihood, that $10 switch will be just as good for most people's everyday uses as models costing over $100.

With most modern gadgets from major brands shipping with class-V/VI efficient power adapters and touting high efficiency, I doubt noisy/whiny power supplies are that common: efficient low-power power supplies require smaller and cheaper components with better design engineering.

XaveT · Jun 16, 2016

Fritchard :

No, your connection is not fast enough for a switch to limit you. Your 100Mbit connection would need to be about 10 (okay, sometimes 8) times faster for that to matter. Really, you are looking for a switch with a high count of packets switched per second. I don't usually see this statistic on consumer grade stuff, plus it will be limited by your router anyway. A switch does far less than a router, so if something it going wrong, odds are low that the switch is to blame.

Fritchard · Jun 16, 2016

XaveT :

Fritchard :

No, your connection is not fast enough for a switch to limit you. Your 100Mbit connection would need to be about 10 (okay, sometimes 8) times faster for that to matter. Really, you are looking for a switch with a high count of packets switched per second. I don't usually see this statistic on consumer grade stuff, plus it will be limited by your router anyway. A switch does far less than a router, so if something it going wrong, odds are low that the switch is to blame.

Awesome! Thanks for the quick replies!

InvalidError · Jun 17, 2016

XaveT :

And the reason for that is because monolithic switch ICs are usually non-blocking - they are designed to sustain the full line speed and packet rate across all ports as long as no individual port's capacity gets exceeded by any meaningful amount. That's why these chips can manage to get away with having only 256-512KB of packet buffer SRAM.

Unlike managed routers and switches, those monolithic ICs are hard-wired to do their job, which eliminates the route/switch processor as a potential bottleneck. The main bottlenecks in them is how well they manage concurrent accesses to the packet buffer and MAC lookup table.

http://www.tomshardware.com/reviews/unmanaged-gigabit-ethernet-switch-roundup,4321-5.html
Here, you see that in a typical single client-server connection, all three switches are effectively indistinguishable from a straight cable. Even in the worst case "mesh" scenario, the slowest switch is only 8% slower than straight cable and an even less significant 3% slower than the best switch in that same scenario.

For most everyday uses, the performance difference between the best-case (straight cable) and the worst switch under the worst conditions is negligible.

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