CCIE Wireless · CCIEW Lab · CCIEW Written

CCIEW – 2.1.a VLANs

VLANs

This shouldn’t be too difficult and will cover off layer 2 and layer 3 creation. I’m attempting to build the lab seen in the introduction post so that’ll be 10 Layer 2 + 3 VLANs on Rip-3560-1 to begin with.

 

2-0-lab-setup

CCIEW - 2.0 - Lab IP Table
CCIEW – 2.0 – Lab IP Table

 

Plug it all in at Layer 1 then begin creating the Layer 2 VLANs:

conf t
vlan <id>
name <name>

 

Creating Layer 2 VLANs
Creating Layer 2 VLANs


It is easy to jump to each now VLAN within config-vlan line mode as per above. Once you’ve finished do a sh vlan to verify.

Verifying Layer 2 VLANs
Verifying Layer 2 VLANs

 

In order to facilitate full  IP comms we’ll also need to configure the layer 3 interfaces outlined in the IP Table. Rip-3560-1 will be the L3 gateway for all of them for now. You’ll need a layer 3 capable switch at this point or you’ll only be able to assign a single IP Address per switch rendering it useless for this scenario.

conf t
interface vlan <id>
ip address <ip address> <subnet mask>

 

Creating Layer 3 VLANs
Creating Layer 3 VLANs

A quick shortcut when creating Layer 3 VLANs is to enter the next interface name whilst in the config-if mode then press the up arrow twice to edit the subnet line. Whilst not saving huge amounts of time, every little helps as you go through the configs. However, if you have logging enabled this will ruin you rhythm so turn that off first.

 

L3 VLANs with logging enabled
L3 VLANs with logging enabled

 

conf t
no logging console

No logging console
No logging console

 

Bulk Layer 3 Vlan Creation
Bulk Layer 3 Vlan Creation

 

The verification command is show ip interface brief or show ip int br.

Layer 3 VLAN Verification
Layer 3 VLAN Verification

I’ve probably stretched that topic about as far as it can go but its a good start!

 

Check out the resources page for resources I’ve used, verification commands and the budding lab task list that I’ll be using to practice closer to the lab.

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