Ethernet Hub UTP + BNC??

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,
--

Hal - in Terra Alta, WV - Slackware GNU/Linux 9.0 (2.4.20-1)
..
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Re: Ethernet Hub UTP + BNC??

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,

Well, Hal ... it's been a long time, but I used to do just what you're
describing ... we had a 10Base2 (what you're calling BNC; also called
thinnet) "backbone that connected several hubs and a couple of servers,
combined with a lot of 10BaseT (what you're calling UTP) clients. No
problems, as long as we were careful about terminating the 10Base2 ends
properly (that is, even if it's only 2 nodes, don't skip the
T-connectors and terminating resistors).

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Re: Ethernet Hub UTP + BNC??

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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Re: Ethernet Hub UTP + BNC??

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,

Hi, Hal:

I believe the definative answer = yes.
I had a home LAN with a few thinnet clients and a few 10base2 clients
on a hub with (8) 10base2 and one BNC connector.

Regards, Chuck


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Re: Ethernet Hub UTP + BNC??

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.
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.linux-learn.org/faqs
>
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