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Author Bridge VS. Switch
navodit

2001-02-19, 2:06 pm

Hi all
Pl guide me what is difference between Bridge and Switch

Navodit

2001-02-19, 2:43 pm

bridge

Device that connects and passes packets between two network segments that use the same communications protocol. Bridges operate at the data link layer (Layer 2) of the OSI reference model. In general, a bridge will filter, forward, or flood an incoming frame based on the MAC address of that frame.

switch

Network device that filters, forwards, and floods frames based on the destination address of each frame. The switch operates at the data link layer of the OSI model.

General term applied to an electronic or mechanical device that allows a connection to be established as necessary and terminated when there is no longer a session to support.

2001-02-19, 2:57 pm

Well, Tony's definitions are sort of kind of identical...

Bridges are software based, while switches are hardware based (which makes them faster than bridges). Other than that, they're sort of kinf of like Tony said.

HTH

2001-02-19, 3:31 pm

like dmaftei said a bridge is software base and a switch is hardware base which makes switches cheaper and faster. Think of a switch as a multiport bridge to is implemented by hardware. Most bridges only had a couple of ports, where as a switch can have hundreds of ports.

2001-02-19, 3:52 pm

Also keep in mind that a lot of peeps and literature use the word "switch" and "bridge" interchangeably (<-- my that's a big word). Don't let it throw you.

2001-02-19, 9:42 pm

quote:
Originally posted by navodit
Hi all
Pl guide me what is difference between Bridge and Switch
Navodit



One can think of a switch as a multiport bridge with an ASIC chip to speed things up.

doctorcisco
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