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What is trap and close?

ii -  
Hello,
Does anyone know what "trap and close" is?
If so, what is needed to implement it on a network?

Thank you in advance.

4 answers

  1.  brupala
    Hi,
    does it have anything to do with firewalls?

    and ... There you go!
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    1. ii
      There is a good chance...
      In that case, could you give me more information
      about firewalls, network protection, and VLANs.
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      1. PatJol
        No, it has nothing to do with firewalls. It's much simpler and older.
        The trap and close is a mechanism that locks a switch or ethernet hub port when it has been connected to a device with an incorrect MAC address (ISO layer No. 2). Specifically, on a wall socket, there is only one device that is allowed. If another device is plugged in, the socket is locked and cannot be used until a network administrator unlocks it.
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        1. brupala
          Thank you,
          I know this as port-security, I've never seen it called trap and close.
          --
          and ... There you go!
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        2. Adamou
          You answered the question exactly.
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      2. PatJol
        So there are the two names.
        Port-security, I think it’s a Cisco designation.
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