Is 100Base-TX switch or hub?
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Posted by on November 11, 2005, 3:47 am
Please log in for more thread options Hi, Is 100Base-TX a switch or hub? I think it supports either half-duplex or full-duplex mode. Then, the duplex modes are related to the switch or hub functionality somehow ? That is, if it functiona as a switch, it should run in full duplex mode, or if it functions as a hub, it should run in hal-duplex mode. Thanks you so much. Min | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by J. Clarke on November 11, 2005, 8:19 am
Please log in for more thread options minseokoh@hanafos.com wrote: I'm not sure I understand your question. 100TX can use either a switch or a hub--with a hub it's half-duplex, with a switch it should be full. Connecting only two computers it doesn't need to use either, just a crossover cable. >
> Min -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by James Knott on November 11, 2005, 9:04 am
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minseokoh@hanafos.com wrote: > Is 100Base-TX a switch or hub?
> I think it supports either half-duplex or full-duplex mode. Then, the > duplex modes are related to the switch or hub functionality somehow ? > That is, if it functiona as a switch, it should run in full duplex > mode, or if it functions as a hub, it should run in hal-duplex mode. > It's neither. 100baseTX is an ethernet specification, that may be used with switches, hubs and NICs. It can also be full or half duplex. Hubs are half duplex and switches can be operated in full duplex. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Rick Jones on November 11, 2005, 6:48 pm
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A "hub" is a device that operates only at the physical (eg electrical) layer - another term for a hub is a multi-port repeater. It does not traffic isolation - basically, it makes things look like every node in the network is on the same piece of wire. A "switch" is a device that operates at the data-link layer - another term for a switch is a multi-port bridge. A switch can do traffic isolation - learning which MAC addresses are associated with which ports on the switch and then only sending traffic to those MAC addresses on the associated port(s). rick jones -- firebug n, the idiot who tosses a lit cigarette out his car window these opinions are mine, all mine; HP might not want them anyway... :) feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH... | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by on November 12, 2005, 8:08 pm
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Thanks for all the replys. Sorry for the confusion. Yeah, right. I meant for the central device conforming to 100Base-TX spec. I wanted to make sure if it can function as either a hub or switch and if so, when it runs as a hub, the communciation mode must always be in half-duplex, and when it runs as a switch, it must always be in full-duplex. >From the replys, I guess my pressumption must be correct.
If I still understand the system incorrect, please let me know.
Thank you so much, everybody. Min | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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>
> Is 100Base-TX a switch or hub?
> I think it supports either half-duplex or full-duplex mode. Then, the
> duplex modes are related to the switch or hub functionality somehow ?
> That is, if it functiona as a switch, it should run in full duplex
> mode, or if it functions as a hub, it should run in hal-duplex mode.
>
> Thanks you so much.