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Layer-2 Switches & Layer3 Switches

This is a discussion on Layer-2 Switches & Layer3 Switches within the Networking forums, part of the category; What is Diff. between Layer-2 & Layer 3 Switches? Why Layer 3 switches used,& What's it's Advantages?...


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Old 06-12-2007
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Layer-2 Switches & Layer3 Switches

What is Diff. between Layer-2 & Layer 3 Switches?
Why Layer 3 switches used,& What's it's Advantages?

Last edited by amit_sara : 06-13-2007 at 08:25 AM.
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Old 07-19-2007
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Re: Layer-2 Switches & Layer3 Switches

L2 Switches - Have the intellignece upto Datalink layer, use the Mac address to forward the frames.
L3 Switches - Mainly used in enterprise LAN environment where demands speed(performance), inter-vlan routing functionality. Inter-VLAN routing and also ensuring the performance of the LAN is not degraded has been to implement Layer 3 switches, which are essentially Layer 2 switches with a routing engine that is designed to specifically route traffic between VLANs in a LAN environment.

We cannot say that L3Switch is better than L2Switch or otherway around, since they are placed/used
in a different requirement/demand.

-Karthik

Last edited by kdeivasi : 07-19-2007 at 07:58 PM.
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