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CCNA 3 Labs and Study Guide - BINARYBB.INFO – @jagalbraith

CCNA 3 Labs and Study Guide - BINARYBB.INFO – @jagalbraith

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384 Switching Basics <strong>and</strong> Intermediate Routing <strong>CCNA</strong> 3 <strong>Labs</strong> <strong>and</strong> <strong>Study</strong> <strong>Guide</strong><br />

Switch#config t<br />

Switch(config)#vtp mode transparent<br />

All your domain-wide VLANs are going to be created on SWA <strong>and</strong> propagated throughout the domain.<br />

Therefore, you need to configure SWA to be in VTP server mode. Record the comm<strong>and</strong>s, including<br />

prompt, to configure SWA in this mode.<br />

Switch#vlan database<br />

Switch(vlan)#vtp server<br />

!or<br />

Switch#config t<br />

Switch(config)#vtp mode server<br />

You do not want SWC to inadvertently be able to create VLANs. Therefore, you need to configure SWC<br />

to be in VTP client mode. Record the comm<strong>and</strong>s, including prompt, to configure SWC in this mode.<br />

Switch#vlan database<br />

Switch(vlan)#vtp client<br />

!or<br />

Switch#config t<br />

Switch(config)#vtp mode client<br />

Are there any problems with your configuration? Will SWC update its VLANs when SWA makes VLAN<br />

changes? Explain any problems <strong>and</strong> how to fix them.<br />

You need to make sure that SWC has a lower configuration revision number than SWA or it will disregard<br />

any VTP messages sent by SWA. You can verify that SWC has a lower revision number by using the show<br />

vtp status comm<strong>and</strong> on both switches. However, it is best to delete the VLAN database <strong>and</strong> then reload the<br />

switch:<br />

SWC#delete flash:vlan.dat<br />

Because SWB is in transparent mode, SWC will receive all VTP messages from SWA. However, no<br />

VLAN updates will occur until the domain name has been specified on switches wishing to participate in<br />

the domain. The following comm<strong>and</strong> needs to be entered on both SWA <strong>and</strong> SWC:<br />

Switch#vlan database<br />

Switch(vlan)#vtp domain <strong>CCNA</strong>3<br />

!or<br />

Switch#config t<br />

Switch(config)#vtp domain <strong>CCNA</strong>3<br />

Concept Questions<br />

Explain why VTP was developed by Cisco to solve operational problems in a switched network with<br />

VLANs.<br />

With VTP, VLAN configuration consistency is maintained across a common administration domain.<br />

Additionally, VTP reduces the complexity of managing <strong>and</strong> monitoring VLAN networks. A network engineer<br />

can make changes on a central switch <strong>and</strong> have those changes automatically communicated to all<br />

other switches in the same domain.<br />

List the two main types of VTP advertisements.<br />

Requests from clients that want information at bootup <strong>and</strong> responses from servers are the two main types<br />

of VTP advertisements.

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