Announcement

Collapse
No announcement yet.

Different between Layer-2 Managed Switch and Layer-3 Managed Switch

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Different between Layer-2 Managed Switch and Layer-3 Managed Switch

    Hi, I am quite confusing with Layer-2 Managed Switch and Layer-3 Managed Switch. Is anyone can help? Thanks!

  • #2
    Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

    A layer 2 managed switch is a switch that operates on layers 1 and 2 of the OSI model and has some type of management "shell" such as a web interface or a CLI and most likely supports "advanced" features such as VLAN's and STP.

    A layer 3 managed switch is a switch that operates on layers 1, 2 and 3 of the OSI model and has some type of management "shell" such as a web interface or a CLI and most likely supports "advanced" features such as VLAN's and STP.

    Comment


    • #3
      Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

      a Layer 3 switch usually has some sort of routing capability (as this takes place at Layer3.)
      a L2 switch, while it may support vlans etc, doesn't do routing in and of itself- it's a switch

      try this.
      http://www.cisco.com/web/about/ac123...evolution.html
      Last edited by tehcamel; 8th August 2012, 07:50.
      Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

      Comment


      • #4
        Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

        The biggest advantage of using Layer 3 switches is that they have dedicated ASIC's (At least Cisco switches do)to peform the routing functions (and the layer 2 functions) which offloads these functions from the general purpose cpu.
        CCNA, CCNA-Security, CCNP
        CCIE Security (In Progress)

        Comment


        • #5
          Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

          Thanks for replies.
          Actually, I want to know the differences in term of features. What features that belong to Layer-3 Switch only instead of Layer-2 Switch?

          Comment


          • #6
            Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

            A layer 3 switch can perform layer 3 functions such as "routing". A layer 2 switch has no routing capability as it just switches packets at layer 2. A layer 3 switch can do both.

            Routing could be static routing, RIP, EIGRP (on cisco switches) OSPF, BGP and depending on the platform IPV4 and/or IPV6

            Since a L3 can route, then you get other features like policy based routing, multicast routing, unicast routing etc...
            CCNA, CCNA-Security, CCNP
            CCIE Security (In Progress)

            Comment


            • #7
              Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

              Originally posted by seansem View Post
              Thanks for replies.
              Actually, I want to know the differences in term of features. What features that belong to Layer-3 Switch only instead of Layer-2 Switch?
              features that take place at Layer 3 of the OSI model. Some of them, Auglan has mentioned.

              But I'm pretty sure you could find this information much quicker and easier than asking on a forum.
              There's entire encylopedias written on the OSI layer.
              Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

              Comment


              • #8
                Re: Different between Layer-2 Managed Switch and Layer-3 Managed Switch

                ahhh the good old OSI model...
                http://en.wikipedia.org/wiki/OSI_model
                Marcel
                Technical Consultant
                Netherlands
                http://www.phetios.com
                http://blog.nessus.nl

                MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
                "No matter how secure, there is always the human factor."

                "Enjoy life today, tomorrow may never come."
                "If you're going through hell, keep going. ~Winston Churchill"

                Comment

                Working...
                X