Need Ethernet Hub - NOT Switch

Need Ethernet Hub - NOT Switch

NewsGroups | Search | Tools
 comp.dcom.lans.ethernet  Post an article  get this group's latest topics as an RSS feed add this group's latest topics to your My MSN content add this group's latest topics to your My Yahoo content  add this group's latest topics to your Google content  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Need Ethernet Hub - NOT Switch Ken Mandelberg 03-15-2005
Posted by Ken Mandelberg on March 15, 2005, 7:15 pm
If you were  Registered and logged in, you could reply and use other advanced 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


NMFall 20%
Posted by sqrfolkdnc on March 15, 2005, 7:15 pm
If you were  Registered and logged in, you could reply and use other advanced 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....



Posted by Arnold Nipper on March 16, 2005, 9:20 am
If you were  Registered and logged in, you could reply and use other advanced thread options


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



Arnold
--
Arnold Nipper, AN45


Posted by J. Clarke on March 16, 2005, 7:49 am
If you were  Registered and logged in, you could reply and use other advanced thread options


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)


Posted by Al Dykes on March 16, 2005, 10:36 am
If you were  Registered and logged in, you could reply and use other advanced thread options


>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.


Similar ThreadsPosted
Ethernet Switch With a PC at Core April 18, 2005, 9:26 pm
ethernet switch book ?? December 7, 2005, 4:02 am
Looking for Small Ethernet Switch With One SFP and a Few 10/100 July 7, 2007, 3:02 pm
Ethernet switch on a PCI card July 15, 2007, 4:12 pm
College ethernet switch problems October 3, 2005, 1:01 am
Looking for low cost Ethernet split switch June 14, 2007, 10:05 pm
Ethernet Vlan-aware switch query. May 4, 2005, 4:40 am
Industrial Power Over Ethernet (PoE) Switch by GarrettCom, Inc. May 31, 2005, 4:02 pm
Ethernet Switch -- Managed versus Unmanaged January 25, 2007, 3:33 pm
Ethernet Switch -- Managed versus Unmanaged January 28, 2007, 1:43 pm

other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

Custom CGI Perl and PHP programming by 1-Script.com

Contact Us | Privacy Policy
The site map in XML format XML site map