Re: Ethernet Hub UTP + BNC??

[Bill Flanagan <flanagan@wdn.com>]

Strictly speaking, the hub is invisible to the "hosts" or active devices on the 
network segment.  A hub accepts a packet o (or noise) on any port, and sends 
exactly that bit pattern on all the other ports.

By contrast, a router forwards a packet to the one port identified at that time 
as the best path to the destination IP address (Layer 3).  A "learning switch" 
acts like a hub until it "hears" layer 2 addresses (Ethernet in this case) on 
ports so it knows where to send a packet based on its destination address.

konsultor

Mike Turcotte wrote:
> Hal MacArgle wrote:
> 
>> Greetings: We run a hobby ethernet LAN in our home with four machines
>> connected via 10Base2, BNC coax, cabling.. It works fine but we're
>> looking ahead when UTP will be "standard" as we see no new MBs
>> without the RJ45, cat 3-5 cable, sockets.. We're not interested in
>> any but the 10mbs speed..
>>
>> The query is: During the transition, especially since one of the
>> machines is 25 feet from the other 3 and the coax cable already built
>> in the walls -- we wonder if we could connect using both UTP and BNC?
>>
>> We note that hubs are available; typically 8 UTP and 1 BNC but it
>> sounds like the BNC is only for linking extra hubs....
>>
>> I can't seem to find a definative answer as to whether we could use
>> the same hub for; typically -- 3 UTP cables and 1 coax cable...
>>
>> TIA and cheers,
>>  
>>
> Yes this is possible, as I also have one of those hubs. You can connect 
> all the machines you like to the UTP connectors and connect machines to 
> the BNC connector, as if the hub is just another node on the segment. 
> You can connect workstations, servers and additional hubs all off the 
> same BNC connection on the hub.
> 
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