RE: Chicken And Egg Dilemma (Workbook Scenario)

From: Michael Stout (michaelgstout@hotmail.com)
Date: Wed Aug 09 2006 - 23:47:12 ART


I think you are safe:
3.2.2 Use a VTP mode that does not propogate vlan information over the
trunks
3.2.3 On the trunks allow only the vlans involved in this secnario.

Now after a very painful experience i had with a prictice lab I believe
the question that needs to be asked is, Does the question say i can pass
all of the vlans used in this secnario across every trunk or is it asking
me to allow only the minimum number of vlans required to obtain universal
connectivity over each of the trunks.

Now your options are:
sw tr all vlan 60,20,10,30,

God Bless America,
May it remain The Land of The Free
and
Home of the Brave.

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

  From: "Dennis Morgan" <dennis3organ@gmail.com>
  Reply-To: "Dennis Morgan" <dennis3organ@gmail.com>
  To: ccielab@groupstudy.com
  Subject: Chicken And Egg Dilemma (Workbook Scenario)
  Date: Wed, 9 Aug 2006 22:23:27 -0400
  All,

  With the bible in my right hand I pray for all you guys struggling to
  get
  that Number for any personal reason (money, work, etc).
  But today is not for talking a religion topics, but for a Question
  about
  allowing Vlans over a trunk

  This particular mooning, while doing Lab 3 of NMC I've found the
  following

  "On the trunks allow only the VLAN's involved in this scenario."

  Solution show us that, f0/8 is assigned to Vlan 10 and also Vlan
  60?? Hmmmm
  maybe typo.
  Say for example: That you have this task in your Real lab: "Task
  tells you
  to Restrict the traffic crossing the trunk to the VLANs used", for
  sure I
  will get 0 for this one, if put other vlans allowed in the trunk, I'm
  100%
  sure about that

  Other question that arises from this particular Allowed Vlan
  Situation, is
  the should VLAN 1 be allowed in the trunks??? , knowing that even
  from the
  neighbor switch no one is connected to that VLAN1?.

  AFIAK removing Vlan 1 from the dot1q trunk, All Traffic leaving would
  be
  tagged, so all layer 2 traffic control (CDP;DTP;etc) is going to
  leave the
  port also with a TAG (just like other vlans traffic passing throe the
  trunk), but what is the remote end is not cisco? .- I'm Not looking
  for the
  Scientific Proof Of The Pre-Existence Of Chickens but some opinions
  about
  this topic is highly appreciated

  By the way, Lab3 NMC for task 3.2.3 should be:

  (config)# interface range f0/13 14
  (config-range)# switchport encapsulation dot1q
  (config-range)# switchport trunk allowed VLAN 30,60

  not 10

  Dennis Morgan
  *Viva La France*!

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