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So let's start with core 1 show interface gigabit.
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1 0 23.
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Switch port.
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So the command here shows us that this interface is enabled as a switch port administer of mode is dynamic
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auto.
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In other words it's using DTP but in order rather than desirable operational mode is static access.
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In other words it's acting as a access port.
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It's currently in VLAN 1.
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So interface range and before I do that we can do something similar on other ports such as gigabit 1
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0 1.
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This port notice it's also an access port.
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We can see something similar on gigabit 1 0 2.
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It's an access port
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1 0 3 is also an access port so let's do it firstly with the ports down to the access switches so gigabit
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1 0 1 2 3 switch port mode trunk.
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Notice we told that we need to configure the encapsulation first so we firstly need to use the command
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switch port trunk encapsulation dot one key and then we specify the mode as trunk so to show run we've
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essentially typed these two commands on these three ports get into the habit of specifying the encapsulation
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first some switches will require that you specify the encapsulation and that's because some switches
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support ISIL and editor at 1 q Packet Tracer in this example only supports dot 1 Q But you still have
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to specify the encapsulation so interface range gigabit 1 0 23 to 24 switch port trunk encapsulation
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dot 1 key switch port mode trunk
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show run they all ports 1 2 and 3 and here ports 23 and 24 the mode is being configured as trunk on
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of those ports we need to do something similar on call to notice we're getting spanning tree warnings
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about inconsistent ports and that's because core 2 is configured with access ports rather than trunk
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ports so interface range gigabit 1 0 1 2 3 these 3 ports down to the access layer switch port trunk
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encapsulation dot one key switch port mode trunk
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show run that configuration looks good.
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So interface range gigabit 1 0 23 to 24 switch port trunk encapsulation not one key switch port mode
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trunk
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she'll run again.
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Go down to the end of our config.
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These two commands have been configured on interfaces gigabit 123 and one 0 24.
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That looks great.
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We are not going to configure the link to the server or the broader as a trunk port.
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They will be access ports now on access 1 the two uplink ports gigabit 1 0 twenty three and one zero
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24.
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Need to be configured as Trump ports so interface range gigabit.
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1 0 23 to 24.
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Switch port encapsulation or trunk encapsulation dot 1 q switch port mode.
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Trunk Show run scroll down.
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There's our configuration on those two ports so that looks great.
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Now we need to do something similar on Access Switch to interface range gigabit one zero twenty three
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to 24 switch port trunk encapsulation not one key switch port mode trunk show run those ports are now
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configured as trunk ports lost switch access 3 do something very similar interface a range gigabit 1
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0 twenty three to 24 switch port trunk encapsulation dot one key switch port mode trunk
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have a look at the config that looks great.
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You'll also notice that I'm constantly saving my configuration.
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That's a good habit to get into save your configuration often in case you have problems.
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So we've configured the trunk ports.
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Now we need to configure the access ports.
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This port needs to be in VLAN 10.
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This port in Vila and 20 this port and V land 30 this port needs to be in VLAN land 100 and this port
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will remain in and 1.
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So I'll start with access which one show interface gigabit 1 0 1 switch port.
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The port is currently in Vila and one needs to be in VLAN 10 so interface gigabit.
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1 1 0 1 switch port mode access that is the default switch port access VLAN 10 show run what do we see
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that port is in a V land 10 so that looks good now to verify show interface gigabit 1 0 1 switch port
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this is the best way to verify notice the port gigabit 1 0 1 as we can see with us show command is in
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VLAN 10 so that looks good.
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Second access switch interface gigabit 1 0 1 switch port mode access switchboard access VLAN 20.
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In this example show run.
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Porter's configured correctly in VLAN 20.
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The true test however to verify is show interface.
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Gigabit 1 0 1.
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Switch port.
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And what you'll notice here is an access port in VLAN 20 switch 3 interface gigabit.
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1 0 1 switch port mode access switch port access VLAN 30 show interface gigabit 1 0 1 switch port this
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port as we can see with this show command is in VLAN 30 so that looks great.
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Now we need to put to the server in the right VLAN interface gigabit 1 0 20 switch port mode access
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switch port access a villain 100 show interface gigabit one zero 20 switch port Port is now an access
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port in vlan 100 so this port is correctly configured the last port is on call to interface gigabit
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one zero twenty two.
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Now before I do anything notice at the moment show run shows us that there is no configuration under
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that interface but now switch port mode access switch port access v land 1 What is it going to show
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us.
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Once we've done that configuration notice it's changed with this option to no negotiate which means
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it's disabled DTP so DTP is being disabled on that access port DDP is still running on this port as
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an example to show interface gigabit one zero 24 switch port.
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Notice the negotiation of trucking is on but if we look at Port Twenty 22 negotiation of trucking is
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off so DTP has been disabled on this port because we made it an access port but on the trunk ports DTP
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is still enabled now in the real world DTP should be turned off you should turn off dynamic trunk protocol
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but in this lab it's okay to use that in the exam make sure that you read the question carefully to
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see if you should turn off DTP Okay so I've successfully completed this part of the lab how did you
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get on.
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Were you able to configure host names passwords VTB villains trunk ports and access ports How did you
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get on.
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Best way to learn is to practice try it yourself and then watch me do it if needed.
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Okay so let's go to the next lab.
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