Very basic network bridging question

December 21, 2011 at 16:30:41
Specs: Win7, 8 Gig
I have been watching the following youtube video brushing up on network bridging

http://www.youtube.com/watch?v=-S4y...

Just trying to understand the concept, lets say at 6:04 of the video we see two switches with a bridge between them right...What I don't understand is why the bridge is nessessary ie, why can't you just connect the two switches with a cross over cable then all computer would be able to talk to each other right?


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#1
December 30, 2011 at 08:35:57
Essentially yes, but switches just branch connections. With routers though on the other hand and computers, you can have a program that says "transfer this from 192.... to 192....", you have two destinations that can be delegated for that process. Switches are not destinations, they are just portals that branch connections, meaning each one doesn't have a specific address.

I hope this helps!


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#2
December 30, 2011 at 11:02:01
The whole point of using a bridge is SEPARATE two or more networks, where you do not wish everyone to have access to everyone.

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#3
December 31, 2011 at 05:03:49
In it's simplest definition, a bridge is a device that connects two networks. Whether or not you wish to have access between the two networks is moot. It can be either way. In fact, most often a bridge is used to join networks.

What I don't understand is why the bridge is nessessary ie, why can't you just connect the two switches with a cross over cable then all computer would be able to talk to each other right?

First off, I didn't watch the video. I don't want to download and watch the whole thing.

There may be a specific reason for not connecting the two switches directly as you've said. Distance is one. If the two switches are more than 100 m apart. A bridge is a quick, easy, inexpensive way to join the two network segments.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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Related Solutions

#4
December 31, 2011 at 09:22:37
" why can't you just connect the two switches with a cross over cable then all computer would be able to talk to each other right?"

Always remember your OSI model.

Your crossover cable is at what layer of the osi model?
Bridging is at layer 2 of the OSI model.

Understand the difference? so is conecting two switches with a xover cable bridging?

Answers are only as good as the information you provide.
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