RE: speed/duplex on 3560

From: M S (michaelgstout@hotmail.com)
Date: Sun Dec 31 2006 - 20:47:07 ART


It got to me too. Lots of fun there. Nothing like some cables working and
others not cooperating.

Thanks everybody. This made the day interesting.

Mike

  --------------------------------------------------------------------

  From: "Scott Morris" <swm@emanon.com>
  Reply-To: "Scott Morris" <swm@emanon.com>
  To: "'M S'" <michaelgstout@hotmail.com>, <ccielab@groupstudy.com>
  Subject: RE: speed/duplex on 3560
  Date: Sat, 30 Dec 2006 21:54:21 -0500
  One exciting issue you may run into depends on what cabling you are
  using!!!

  See, the 3560's have this cool thing called "auto-mdix" which means
  you can
  plug in a straight-through or crossover cable and it doesn't matter
  because
  the switch will figure it out.

  BUT.... That only works as long as you are still auto on your speed
  and
  duplex. Otherwise, it goes back to the "you figure it out" method of
  cable
  detection.

  So if you put your ports back into "auto" do they come up just
  fine? That'd
  be why then.

  Dontchya just love progress???? This little feature pissed me off
  for a
  little while before I figured it out when I first started playing
  with
  3560's. (smirk)

  HTH,

  Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
  JNCIE
  #153, CISSP, et al.
  CCSI/JNCI-M/JNCI-J
  IPExpert VP - Curriculum Development
  IPExpert Sr. Technical Instructor
  smorris@ipexpert.com
  http://www.ipexpert.com

  -----Original Message-----
  From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
  Of M S
  Sent: Saturday, December 30, 2006 6:03 PM
  To: ccielab@groupstudy.com
  Subject: speed/duplex on 3560

  Hello:
  Does anybody know why you can't lock in the speed and duplex settings
  on the
  Cisco 3560?
  I just tryed to condigure some trunks and the links would not come up
  with
  the speed and duplex sett to 100 / full. I tried different
  combinations of
  no mdix auto and that didn't help. Thanks.Mike

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