Time to configure a new switch. This will be the last switch configured for your labs.
hostname labsw3
interface VLAN 1 - IP address 192.168.1.77 255.255.255.0
All other parts of the configuration should be the same as labsw1:
All passwords: enable secret, console, vty
Password encryption
motd banner
DNS server
VLANs
200 - interfaces Fa0/7, Fa0/8
201 - interfaces Fa0/5, Fa0/6
202 - interfaces Fa0/3, Fa0/4
203 - interfaces Fa0/1, Fa0/2
Configure interfaces Fa0/23 and Fa0/24 (or the last 2 interfaces on your switch) as trunk ports.
You have already configured interface Fa0/24 on labsw1 and labsw2 as trunk ports. You should also reconfigure interface Fa0/23 on both switches as trunk ports. When this is complete, each switch in your lab will have two trunk ports: Fa0/23 and Fa0/24 (or the last two interfaces on your switches).
You may have noticed that we keep moving the interface VLAN assignments around. The reason is simple: in an enterprise network, interface VLAN assignments are either
the entire switch is one VLAN, such as a smaller remote office
Or
the interface VLAN assignments are somewhat random, and you have to use displays such as show vlan to determine which VLAN the interface is in.
While no lab can reproduce an actual enterprise network environment, we keep trying. The important thing is that you assign interfaces to the VLANs used in these labs, and that you test the configuration to insure that you have done it correctly.
If this site was a discussion of actual network practices instead of labs to learn Cisco configuration, we would spend a lot of time talking about the low quality of most network documentation and test processes. It’s a jungle out there. Many problems can be avoided by testing a configuration before putting it in production. The time required spent in resolving other problems could be significantly reduced by good documentation. But as you will hear from many networks across the galaxy, “We have standards and they are very, very low.”
Oh, well. Test your configuration.
When you have finished the configuration, save to the startup config and the TFTP server. Test all configurations as was done in Labs 1-9.
Again, consider this a test, or a pre-test. You should be able to do most of these things from memory. If you can't, you should be concerned about your knowledge of switch configurations. Review the previous labs closely and repeat them as often as necessary to remember them.
In the words of the Headgehog, "Repetition is the mother of education." And "If you can't do it from memory, then you can't do it at all." (He says a lot things like that. Boring at times, but of course, he's right.)
This stuff will be on the test. When and if you get a job in an enterprise network, you will need to know it.
