Re: 3 vlans and a problem

Yea but (at least in my experience) they can't be used to bridge three
different vlan's together and allow them to use the same IP range freely.
The whole point of PVLAN is to restrict the communication of hosts in the
same vlan not to allow it. So if everything in every vlan were supposed
to talk freely you could only use one secondary vlan which seems to leave
the other secondary (assuming the first vlan becomes the primary) unused.

From:
Gary Duncanson <gary.duncanson_at_googlemail.com>
To:
<Keegan.Holley_at_sungard.com>
Cc:
<ccielab_at_groupstudy.com>
Date:
11/15/2009 05:52 AM
Subject:
Re: 3 vlans and a problem

Not exactly. Private vlans can be used to achieve a number of
connectivity/non connectivity results between hosts and not just outright
isolation. You can achieve that with regular vlans.
----- Original Message -----
From: <Keegan.Holley_at_sungard.com>
To: "Johnny B CCIE" <jbccie_at_gmail.com>
Cc: "groupstudy" <ccielab_at_groupstudy.com>; <nobody_at_groupstudy.com>
Sent: Sunday, November 15, 2009 12:00 AM
Subject: Re: 3 vlans and a problem

> It all depends on whether the hosts in the subnet are supposed to be
able
> to talk. Private vlans are used to separate things not to connect them
> together. Can you give us the requirements exactly?
>
>
>
>
>
> From:
> Johnny B CCIE <jbccie_at_gmail.com>
> To:
> groupstudy <ccielab_at_groupstudy.com>
> Date:
> 11/14/2009 10:03 AM
> Subject:
> Re: 3 vlans and a problem
> Sent by:
> <nobody_at_groupstudy.com>
>
>
>
> So far 2 ccies have come to the same conclusion of private vlans maybe
> I was not clear enough with the question but I reworded my query very
> closely to the original question. I am not asking questions I do not
> already have an answer for by the way. I merely am starting a review
> of things I want to know perfectly before my trip to the lab.
>
> I suppose we can use private vlans to apply the same subnet mask but
> we would have achieved the exact opposite of the desired outcome for
> this question. So private vlans will achieve the the lab requirement
> to allow all three vlans to use the same subnet however 0 points will
> be awarded for the task. Maybe there will be points awarded for
> re-grade or maybe not. Anyone want to try again?
>
> On Sat, Nov 14, 2009 at 1:16 AM, Johnny B CCIE <jbccie_at_gmail.com> wrote:
>> Let's say I have 3 vlans (10, 20, and 30).
>> Let's say I have a lab requirement to configure all three vlans to use
>> the same subnet: 172.16.10.0/24 (for each vlan).
>>
>> What options are available to make these three vlans appear to be in
>> the same subnet?
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Sun Nov 15 2009 - 12:40:08 ART