Re: Spanning Tree Reconvergence

From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Wed May 11 2005 - 21:06:24 GMT-3


Max Age is not relevant when the change involved gain or loss of link.

Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net

  ----- Original Message -----
  From: chon_mon@nym.hush.com
  To: ccielab@groupstudy.com
  Sent: Wednesday, May 11, 2005 7:47 PM
  Subject: Spanning Tree Reconvergence

  Has any one actually timed the SPT reconvergence of a cat 3550? I
  timed it to exactly 30 seconds, on a default configuration of a
  couple trunk links. I had been reading on DOC CD that the
  convergence on a switch is 2(Forward Delay time) + Max age time =
  50 seconds. Why am I coming up short 20 seconds? Could not find
  anything in the archives.

  If any one can shed some light, I would be eternally grateful.

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