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Thread: STP question

  1. Junior Member
    Join Date
    Oct 2017
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    #1

    Default STP question

    Reading through Lammel's ICND2 200-105 book and everything was going good until he tried to explain Spanning-Tree. To be more accurate, I didin't think anything was too hard until he showed this example:



    I'm well aware that a swiches Bridge ID is used as a tiebreaker if the accumulated path cost is a tie between 2 switches back to the root bridge... My question lies with his Bridge ID logic. Could someone explain to me how switch SD has a better (lower) Bridge ID then SA?

    Thanks
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  2. SS
  3. Senior Member
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    CCNA R&S
    #2
    It doesn't. That's a mistake in the book
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  4. Junior Member
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    Oct 2017
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    #3
    I figured. Thanks!
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