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Thread: Layer-2 Switches & Layer3 Switches

  1. 06-12-2007 #1
    amit_sara
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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 07:25 AM.
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  2. 07-19-2007 #2
    kdeivasi
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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 06:58 PM.
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