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  • Vlan trunking protocol

    Hi everyone I am abdullah Currently taking up CISCO CCNA course.
    I hope that someone can help me to understand what is VTP
    and the configurations. My question is is there any other configurations
    on switch that you can connect to different VLAN's but in the same subnet
    without using layer 3 device?

  • #2
    Re: Vlan trunking protocol

    VTP basically propagates any VLAN created on a VTP server to other VTP Clients. With this you can create a VLAN at one switch and all other switches receive the information about this VLAN as well.

    More about VTP: http://www.cisco.com/en/US/tech/tk38...80094c52.shtml


    My question is is there any other configurations on switch that you can connect to different VLAN's but in the same subnet without using layer 3 device?
    I'm a bit unsure what you mean with this question? VLAN's are Virtual LANS. To connect from one VLAN to an other, you should create different subnets and use a Layer 3 device to route the traffic between them. A VLAN breaks up the broadcast domain into smaller pieces and therefore a host cannot be found if it resides in a different VLAN without using a routing device.

    This might also help: http://www.cisco.com/web/learning/le...ks/player.html
    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"

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    • #3
      Re: Vlan trunking protocol

      HI,mezta21,About you question,I can help you realize it with cisco switch.
      First,you must have two layer 2 devices.Switches connected by two lines.One is trunk port that allowed all vlans,the other is access port.You can see my topology in 1.png.
      If you want to the principle,you must have a meet about the vlan,trunk and access.You need to know the packets how to operate when they are in or out trunk port and access port.

      Particularly worth mentioning is that you can use this topology to study,but you can not put it into practice.Generally speaking,we use layer 3 device to connect each other who are in different vlans.
      For more information, you may feel free to contact me: [MOD EDIT] User banned for failing to follow rules and heed warnings[/MOD EDIT]
      Attached Files
      Last edited by Ossian; 22nd November 2013, 16:24. Reason: d

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