From: Sidalo (sidalo@gmail.com)
Date: Sun Apr 30 2006 - 21:24:58 GMT-3
Technically yes, as long as the the correct vlans are specified in the
allowed list, as no traffic on vlans disallowed will pass over the trunk.
Manually allowing or disallowing vlans has more admin overhead from a
personnel standpoint. If at a later point you were told to add a new vlan to
one of the switches, you would have to modify your trunk again.
Kind of the keyword in this situation is the "not locally assigned", and
"throughout the domain",which is a function of pruning as to block traffic
of vlans that do not have any ports assigned and up in that vlan.
By enabling pruning on the vtp server it enables it throughout the domain,
instead of having to do each trunk link individually.
If configured correctly both will accomplish the goal, however pruning is a
quicker method, although in a lab environment with only a couple of switches
it is not a huge deal.
A good part of the Lab is recognizing scenarios and determining which path
of a given solution set they are serring you towards. Or if they are not
steering you towards anything, it usually means that do to other
interoperability with other functions you are supposed to find the right
solution.
So knowing interoperability makes a big diffrence, and practicing scenarios
and paying attention to specific keywords in each scenario will help you
determine where the scenario is trying to lead you.
Applied to this case, know when you can enable vtp pruning and when you
cant. If the scenario told you to do something that contradicted the vtp
pruning method, then you would know to manually remove vlans from trunks as
another method.
On 4/30/06, Mike O <mikeeo@email.msn.com> wrote:
>
> The question ask that no VLANs not locally assigned should not be recieved
> over any trunk link throughtout the VTP domain.
>
>
> I did:
>
> switchport trunk allowed vlan 1
>
> The solution calls for:
>
> vtp prunning vlan 3,4,5 etc..
>
>
> Are they both right?
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:59 GMT-3