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Thread ID: 57776 2005-05-12 09:22:00 100mbps Hub dwnz (5333) Press F1
Post ID Timestamp Content User
354408 2005-05-12 09:22:00 Hey
I got a new hub off trademe, and it arived today, and i plugged it in, only to find that it didnt want to work with my 10mbps router (Nokia m1122). I downloaded the manual, still no joy. Can any one tell me why this is?

Hub Info:

On the front it says

Kingston EtheRx
100Base-TX Fast Ethernet Stackable Hub

KNE8TX/RS

100BASE-TX Class II (2) Repeater

I has two 8 ports, one with 8 X (MDI-X), and an other one with 8 = (MDI), and in the manual it says to use the 8= port for joining to other hubs and routers and ive tried that and it doesn’t work.

Could the 100Base-‘TX’ have any thing to do with it?

Thanks
Daniel
dwnz (5333)
354409 2005-05-12 09:24:00 It's probably broken.

What does it do?
george12 (7)
354410 2005-05-12 09:25:00 I have plugged it all in, and transfered data, no probs, its just the uplinking part

Daniel
dwnz (5333)
354411 2005-05-12 09:26:00 (meaning the machine cant go on the net, or get dchp ip's) dwnz (5333)
354412 2005-05-12 11:30:00 I have plugged it all in, and transfered data, no probs, its just the uplinking part
Daniel

What type of uplink cable did the manual specify, straight through or crossover?

I take it that this is a hub not a switch?

Cheers

Billy 8-{)
Billy T (70)
354413 2005-05-12 11:37:00 A quick look at the manual says that MIDX is for crossover cables and MIDI is for straight through. Try one port then the other and something should happen.

Cheers

Billy 8-{)
Billy T (70)
354414 2005-05-12 13:16:00 Heh it probably doesn't do 10 Mbps speed (I have a hub that only does 100 MBps as well - yes it is odd).

The manual doesn't mention auto-negotation etc anywhere...
gibler (49)
354415 2005-05-12 20:57:00 Yea, because it a 100mpbs-TX it wont support 10mbps :(, and i need 10mbps cuz thats all my router is.

Daniel
dwnz (5333)
354416 2005-05-13 00:46:00 Maybe that's the answer, but it doesn't make sense. A 100 Mb/s hub should be able to process lower speeds, it cant rely on all data feeds being 100Mb/s. How would it cope with connection to a 10Mb/s network card?

I guess there is a good reason though, otherwise we wouldn't see specs like 10Mb-100Mb/s quoted on network cards, hubs & switches.

Still doesn't sound right though.:(

Cheers

Billy 8-{)
Billy T (70)
354417 2005-05-13 04:27:00 I'm afraid that a 100 Mbps hub is meant for use on a 100 Mbps network. :(

A hub is a "multiport repeater". It doesn't do anything to the packets but regenerate them, least of all change the rate.

The "TX" suffix just refers to the cabling ... TX uses 2 pairs of a Cat 5 cable, just like 10Base-T. 100Base-T4 uses all 4 pairs of a Cat 5 cable.

A switch is a more complicated beast. Some can do rate conversion.
Graham L (2)
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