Q: I just got a 24port free, but it has a switch back and forth between MDI and MDIX switch. I have not used it yet, but I am a big LAN quickly, and I would like to know what would be better to use. And as someone the time I would like to know what the boys have difference.
Thanks for everything. : Beer:
The Ghost Method
Re:No thanks
I got a 24 port, 9 port, and 8 port completely unused in my closet already.Re:It's closes to the 24 port. Hey thanks for the help ark. Do you want a 24port?
Re:You said "it has a switch to switch back and forth between MDI and MDIX"
That switch only affects one of the ports, probably whichever its closest to, in all likelyhood.
The old 9 port hub I have, for example, actually labels all of the ports as such: 1X 2X 3X 4X 5X 6X 7X 8X 9
And on the side of the hub, near the 9 port, is a switch labeled X on one side, and | on the other side, which I know switches the 9th port from "9X" to "9I"
Re:I get it except for how to set the 24th port to MDI…there are no other buttons on the switch.
Re:Well the MDI/MDIX switch probably only affects 1 port, not all of them. You want MDI, not MDIX, if you are using a standard cable to hook to your cable modem.
Typically, the 1 port on a cable/dsl modem is internally crossed so that you can use a standard cable to hook to your computer, where your ethernet card is not crossed.
Since 23 of the 24 ports are probably always crossed internally and you can't change that, hooking a standard cable from any of those 23 ports to your cable modem would result in *TWO* crosses – one internally at both end, so it would not work. You would have to use a cross-over cable to hook the cable modem to any of those 23 ports, so that you have 3 crosses, two of them cancelling eachother out. Or, you just set the 24th port to MDI so its not crossed, and use a standard cable to the cable modem, and you only have 1 cross, so it works just fine.
All of that assumes your cable modem doesn't autosense the cross and just switch between crossed and straight internally in order to work regardless of the cable and port its hooked to, which some new equipment does now.
Re:By crazy, I mean that's totally cool.
But thanks a lot for the help Ark. So I just want to hook my cable modem up to it to route it between about 14 computers. Should I just run it in MDIX mode?
Re:It's not crazy if you want to link the hub or switch up to another, or to a dsl/cable modem. It saves you from having to find a cross-over cable, unless you have new equipment with the autosense and autoswitching to cross/straight.
Re:That's crazy, anyways I'm gonna run it in MDIX.
Re:It probably switches one of the ports from straight (for uplink) to cross-over internally (making it like a normal port)
I have an old 9 port hub and the 9th port has a switch near it that is just labeled I and X. X makes all 9 ports behave the same, I makes the 9th not crossed internally.
*edit* to add, I think MDI is the thing that looks like a serial port, which is used typically to link multiple switches together. I think you can also put adapters on the MDI port to make it RJ45 or BNC or other variants of ethernet.
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