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Does Spanning Tree Protocol impose an overhead?

Discussion in 'Tomato Firmware' started by Kiwi8, Jan 31, 2008.

  1. Kiwi8

    Kiwi8 LI Guru Member

    Does Spanning Tree Protocol impose an overhead?
  2. kevanj

    kevanj LI Guru Member

    sure...any additional process you have running will. It will impose an overhead on your switches because the spannning tree process is running on them, and on your network, as the switches involved have to send out BPDUs to determine which paths/ports are active and which should be used and which shouldn't to prevent layer 2 loops.

    I'm guessing the next question would be 'how much overhead?' That I cannot answer, as my network isn't complex enough or configured such that I need to run spanning tree.
  3. ifican

    ifican Network Guru Member

    Most home users will not have a need for spanning tree. If you do not and turn it on anyways then it will cost you 2 things, cpu cycles and 50 seconds of your time to let ports run through the stp process.
  4. HennieM

    HennieM Network Guru Member

    In a 3 switch network, I don't notice the overhead in network speed. If you have a bunch of nodes linked by WDS or something where the STP frames have to continuously jump over wireless, I guess you'd notice.
  5. Kiwi8

    Kiwi8 LI Guru Member

    Thanks for the replies.

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