Need Ethernet Hub - NOT Switch
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Posted by Ken Mandelberg on March 15, 2005, 10:15 pm
Please log in for more thread options I'm looking for a simple unmanaged 16 port rack mountable 100mbit ethernet hub, which is NOT a switch. We bought a Linksys EF2H16 because it was advertised as a hub, but after monitoring it found it acting as a switch. Linksys tech support after lots of probing told me that the older versions were in fact just hubs but they had silently substituted newer silicon that acted as a switch in the current version. Can anyone suggest a product that will do what I want? -- Ken Mandelberg | km@mathcs.emory.edu Emory University | Dept of Math and CS | Phone: Voice (404) 727-7963 Atlanta, GA 30322 | FAX (404) 727-5611 | ||||||||||||||||||||||||||||||||||||||||
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Posted by sqrfolkdnc on March 15, 2005, 10:15 pm
Please log in for more thread options can you go in and set the cache so small it will always overflow? According to another thread here, most switches become hubs when the cache fills up.... | ||||||||||||||||||||||||||||||||||||||||
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Posted by Arnold Nipper on March 16, 2005, 12:20 pm
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On 16.03.2005 04:15 sqrfolkdnc wrote Note: but only for the "excess" traffic. I.e. for traffic to MAC destinations not in the cam table (cache). I would have a look at eBay where you can get relative new 24-port hubs for small money (<=20$). e.g. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11181&item=5757509295&rd=1 Arnold -- Arnold Nipper, AN45 | ||||||||||||||||||||||||||||||||||||||||
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Posted by J. Clarke on March 16, 2005, 10:49 am
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Arnold Nipper wrote: > On 16.03.2005 04:15 sqrfolkdnc wrote
> >> can you go in and set the cache so small it will always overflow?
>> According to another thread here, most switches become hubs when the >> cache fills up.... >> >
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11181&item=5757509295&rd=1 > Note: but only for the "excess" traffic. I.e. for traffic to MAC > destinations not in the cam table (cache). > > I would have a look at eBay where you can get relative new 24-port hubs > for small money (<=20$). e.g. > The problem is that most "relative new 24-port hubs" are implemented using switch chips because it's cheaper to do it that way than to wire up a hub with discrete devices. What he needs is an _old_ hub, made when it was still expensive to make a switch. <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11181&item=5760215738&rd=1&ssPageName=WDVW>
might be a good bet. 100TX only though, not dual-speed, if that's a
problem. Somebody needs to make a list of "real" vs "imitation" hubs. > Arnold
-- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) | ||||||||||||||||||||||||||||||||||||||||
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Posted by Al Dykes on March 16, 2005, 1:36 pm
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>Arnold Nipper wrote:
> >> On 16.03.2005 04:15 sqrfolkdnc wrote
>> >>> can you go in and set the cache so small it will always overflow?
>>> According to another thread here, most switches become hubs when the >>> cache fills up.... >>> >>
>> Note: but only for the "excess" traffic. I.e. for traffic to MAC >> destinations not in the cam table (cache). >> >> I would have a look at eBay where you can get relative new 24-port hubs >> for small money (<=20$). e.g. >> >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11181&item=5757509295&rd=1
> >The problem is that most "relative new 24-port hubs" are implemented using >switch chips because it's cheaper to do it that way than to wire up a hub >with discrete devices. > >What he needs is an _old_ hub, made when it was still expensive to make a >switch. > ><http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11181&item=5760215738&rd=1&ssPageName=WDVW> >might be a good bet. 100TX only though, not dual-speed, if that's a >problem. > >Somebody needs to make a list of "real" vs "imitation" hubs. > > > >> Arnold
>
>-- >--John >to email, dial "usenet" and validate >(was jclarke at eye bee em dot net) If you buy a used box made by Cisco/3Com/HP you can trust that if it says it's a hub, it's a hub. before buying you should get the model # and grap the manual from the manufacturer's web site and read up to make sure you know what youi are buying. I wouldn't trust a seller to describe the item correctly. HP has a lifetime warranty on some of it's gear. Hard to go wrong. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. | ||||||||||||||||||||||||||||||||||||||||
> According to another thread here, most switches become hubs when the
> cache fills up....
>