pfr 1 Posted October 20, 2010 (edited) Hi Team, INE Mock lab 16 1.1 Pruning• Some time ago a new switch was installed in your network that had a highconfiguration revision number and it erroneously overwrote your entireVTP domain.• In order to protect against this type of misconfiguration in the future yournew corporate policy dictates that all switches must run in VTPtransparent mode. However since SW1, SW2, SW3, and SW4 are notadvertising VLAN information to each other they cannot participate in VTPpruning. This has resulted in a large amount of unnecessary broadcasttraffic being sent over your trunk links.• In order to solve this problem manually configure your network to behaveas though VTP pruning has been enabled.• Trunk only the necessary VLANs on SW2’s trunk to R6. The solution is belowSW1, SW2:vtp mode transparentSW1:interface FastEthernet0/14switchport trunk allowed vlan 16,47,100,200!interface FastEthernet0/19switchport trunk allowed vlan 3003SW2:interface FastEthernet0/14switchport trunk allowed vlan 16,63!interface FastEthernet0/14switchport trunk allowed vlan 16,47,100,200!interface FastEthernet0/16switchport trunk allowed vlan 63SW3:interface FastEthernet0/16switchport trunk allowed vlan 63SW4:interface FastEthernet0/13switchport trunk allowed vlan 3003 Why do we need 3003 on Sw1 and SW4 ? INE mock lab 9 1.4 also is similar. Solution says VLAN 68 connects SW2 to R6 (connected to SW4), so needs to be created on SW2, SW3, and SW4. Why ? I couldn't find the logic behind the solution. Could someone help ? Thanks Edited October 20, 2010 by pfr Quote Share this post Link to post Share on other sites
i3isking 0 Posted October 20, 2010 I have checked the solution it doesn't have any 3003 vlan. Maybe they had a mistake in solution and fixed it in a later revision. Quote Share this post Link to post Share on other sites
pfr 1 Posted October 22, 2010 Hi i3isking,Thanks for your reply. Could we have couple of more responses to the question Thanks Quote Share this post Link to post Share on other sites
Peterjj 1 Posted October 22, 2010 You use VTP pruning of stop the vlan flooding traffic into the switching domain. If you want to mimic pruning in transparent mode, you need stop the vlan spanning unnecessary switches. So only allow required vlans on the trunks. Quote Share this post Link to post Share on other sites
pfr 1 Posted October 23, 2010 You use VTP pruning of stop the vlan flooding traffic into the switching domain. If you want to mimic pruning in transparent mode, you need stop the vlan spanning unnecessary switches. So only allow required vlans on the trunks. Hi Peterjj, Thanks for your response.But I was looking for feedback on the exact question of INE. I couldn't get their answer. I wanted to know if I their answer is right or wrong This is a very important topic always asked in the CCIE lab and we have to be 100% sure about the concept.If you have INE could you check that question ? Thanks Quote Share this post Link to post Share on other sites