From: Larry Metzger (larrymetzger@sbcglobal.net)
Date: Wed Aug 04 2004 - 12:39:37 GMT-3
You need to think about which device is doing the pruning. The device
that does not need the data will request to be pruned from the other
device. That's why you put the command on sw2.
Larry
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Pankaj Bhagwanani
Sent: Wednesday, August 04, 2004 8:36 AM
To: ccielab@groupstudy.com
Subject: IE Lab 4 - section 1.7 - pruning vlan 8
Hello
Wondering if anyone can help.
Topology is
Sw1 ------ Sw2
Vtp pruing is enabled globally on each switch.
Vlan 8 is locally assigned on Sw2 , Vlan 8 is not locally defined via
access port or locally on sw1
Question asks for vlan 8 not to be pruned to sw1 , hence sw1 will
recieve all vlan 8 traffic
Answer in solution guide is
on Sw1
int fas 0/13
sw trunk encap dot1q
sw trunk prun vlan 2-7, 9-1001
sw mo trunk
On sw 2
int fas 0/13
sw trunk encap dot1q
sw mo trunk
Im confused with this answer, i would have though the pruning exemtion
would be configured on sw2, not sw1
This is my logic :
From my understanding, in order for sw1 to receive traffic for vlan 8 ,
we need to prevent this from being pruned at sw2 to sw1
If Sw2 does not prune the vlan ( ie through the command switchport trunk
pruning ' ) command, Sw1 will receive traffic for this vlan
As a result, Since Sw1 does not have a vlan assigned locally or via an
access-port , it will not receive traffic from fas 0/14 - 15 , but will
receive it from fas 0/13. , due to pruning enabled globally on Sw2
can someone help/clarify.
Thanks
Pankaj
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