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which is the best solution for this???

By pongo ·
Can you help me answer this question??? please


I have a building that requires 72 total ports for the 36 offices in the building. What should I use to network this and keep it in one collision domain (hub, repeater, patch panel??) then I have to connect two identical such buildings and keep both buildings in the same collision domain ( repeater?) ? Then what would I use to connect the two buildings if they were to be two separate LANs with their own collision domains( bridge?)?

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which is the best solution for this???

by road-dog In reply to which is the best solutio ...

OK,
In order to have a solid network, the idea is to NOT have the whole network in one collision domain. I think what you want is to have everything in the same logical network.

For the purposes of this answer, I'm going to assume that you meanlogical network. Depending on budget, there are several switch platforms that will handle 72 ports. If you would rather not go with a multiblade chassis, two 36 port workgroup switches will do. Select a cascade model and bond them together. If you use fiber to link the two buildings, then you can gig uplink between the two. 144 hosts can be covered in a class C subnetwork (24 bit mask).

Good luck. If you need more info, post again.

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which is the best solution for this???

by pongo In reply to which is the best solutio ...

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which is the best solution for this???

by Meganetcomputers In reply to which is the best solutio ...

You could possibly mean the same broadcast domain/subnet which would basically mean the same this as the person above had wrote but if you have that many clients in two different buildings I would recommend that you use switches instead of hubs and stick with patch panels in the telco/server room. You will also want to make sure that the switches you do get have at lease one fiber port so you can connect the two buildings together. If you need any further assistance you can e-mail me at support@meganetcomputers.com or visit my web site at meganetcomputers.com.

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which is the best solution for this???

by pongo In reply to which is the best solutio ...

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which is the best solution for this???

There are other issues besides the network components at stake here. The answers above are correct, but in order to get your bang for the buck, I would highly suggest finding a telecommunications contractor that is capable of doing this for you, most cabling jobs, even small ones such as this require additional knowledge of Outside plant when connecting two buildings. Find a contractor certified by the fiber manufacturer (such as Corning's EWP certified program) most likely they will also be certified in the copper cabling you need, and 9 times out of 10 have a networking division to assist you in choosing your components. You can spend $10k and do it, or $15k and do it right, and have it last with a higher level of performance. Ask aroundfor an IT/SCS consulting firm in your area for more help.

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which is the best solution for this???

by pongo In reply to which is the best solutio ...

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which is the best solution for this???

by shmaltz In reply to which is the best solutio ...

Ansere one two and three make good points but they are all wrong on making such an issue about this.
If you use layer 3 swithces (which you should use), you will not have any problems with the fact that it will be 144 hosts on the same subnet.
I have succesfully set up a buildings with 150 hosts on the same subnet, since the price of layer 3 switches wend down I'm now able to this without loosing speed. You should NOT use hubs, unless you will be using routers between hubs and not put more than 20 hosts on the same subnet. If you do put more than 20 hosts on the same subnet it will be very slooooooooooooooowwwwwwww.
Here is a typical setup:
For every few 300 feet on each floor use one closet with a patch panel in there. You don't want to run into length problems so 300 feet will keep you safe. In most buildings this means that you can just use one closet in middle of the floor.
From each closet run one cable per 24 port patch panel plus one extra, to your main room where you wantall the closets to terminate. Which should be located within 100 meters of the farest closet.
Do this in both buildings, in your main room also use a layer 3 switch to interconnect all swithces. Make sure that all swithces are all from the same company so when you uplink the swithces they can do the layer 3 swithcing.
To interconnect the 2 buildings use a fiber calbe. Most of the layer 3 switches have the option to install a fiber cable so you can uplink it. In the room where you will have the fiber cable coming in (where your main room will be). If you will have more than one fiber cable coming in you will need a switch that can handle more than one fiber cable and ethernet cables.
Continued.....

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which is the best solution for this???

by shmaltz In reply to which is the best solutio ...

....Continued
If any of the closets in any building is too far from the main room (more than 100 meters), you can either connect it with a fibre cable, or you can connect it to the next switch that is not far and that one isn't far from the main swithc (daisy chain/repeat).
If you use layer 3 switches the maximum length between switches is 100 meters. You can daisy chain as many as you want, no need for repeaters but you shouldn't do it, instead try running each switch directly to the main switch.

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which is the best solution for this???

by pongo In reply to which is the best solutio ...

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by pongo In reply to which is the best solutio ...

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