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Learn Cisco Network Administration in a Month of Lunches by Ben Piper

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Chapter 11. Automatically configuring VLANs using the VLAN Trunking Protocol

Now that you’ve set up a trunk between your switches, it’s time to introduce you to another cool feature of IOS that can save you a bit of time when configuring VLANs on your new switches.

In the last chapter, when you were configuring Switch2 you had to manually create VLANs 600 and 700 on it. This wasn’t a big deal because you had to do this on only one switch, but what if you had to add 10 new switches and each switch needed 100 VLANs? Although manually adding VLANs isn’t a difficult process, it doesn’t scale well.

To solve this, Cisco has given us a cool feature called the VLAN Trunking Protocol (VTP). VTP saves you from having to manually create VLANs on each ...

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