VALN locally assigned and VTP prunning and Domain

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I have got this scenario:

Switch1:-----By default it server
vtp domain DOGCAT
vtp password CISCO
vtp pruning
vlan 3,5,6,8,10,26,33,52

Switch2:
vtp domain DOGCAT
vtp mode <B>client</B>
vtp password

Requirement:

VLANs not locally assigned should not be received over any trunk links
throughout the VTP domain.

Explanation:

((By default, all VLANs are allowed to be sent over any trunk link in
the VTP domain. Therefore, broadcast frames and frames destined for
unknown unicast addresses will be sent over all trunks throughout the
domain. This behavior is undesirable when one or more switches
throughout the VTP domain receive traffic for VLANs that they do not
have locally assigned and are not in the transit path for.

In order reduce this unnecessary traffic VTP offers a feature known as
pruning.
VTP pruning allows a switch to communicate with its directly connected
neighbors about what VLANs they have locally assigned and are in the
transit path for.

Therefore VLANs that are unnecessary can be &#147;pruned&#148; off of
the
interface. VTP pruning can be enabled by issuing the vlan database or
global
configuration command vtp pruning)).

1- Can we consider vlan (3,5,6,8,10,26,33,52) locally assigned ?  If
so, why do we consider them localy,,,do we consider them locally
assigned ,because we define them under "vlan" command in global
configuration ? or becaues they are in the same domain (DOGCAT) ?

2- If I have got another switch in the above scenario

Switch3:---------By default it is server.
vtp domain DOGCAT
vtp password CISCO
vtp pruning
vlan 13,15,100

Does vlans (13,15,100) consider locally assigned for switch3 only ?
though they will be advertised to switch1 and switch2.

Now as we know that switch1 will advertise its valns
(3,5,6,8,10,26,33,52) to switch3,,,,,

When I issue the command "prun vlan" global configuration in case of
switch3,,,,which vlan will it be pruned off ?

does it prune off the valns (3,5,6,8,10,26,33,52) that have been
advertised form switch1 to switch3,,,because they are not locally
assigned under global configuration of swtich3 ?


Re: VALN locally assigned and VTP prunning and Domain


Any help


Re: VALN locally assigned and VTP prunning and Domain


Any help


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