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Now for this demonstration I'm no longer going to use this old Toshiba laptop.
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Very few laptops today have built in serial ports.
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So I'm going to demonstrate how to connect to a Cisco router and two Cisco switches over there using
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this more modern ISIS laptop.
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I'm going to show you two ways to connect to the devices.
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First method is using this USP to RJ 45 rollover cable.
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So I'm going to connect this to one of the ports on this laptop connect that to one of the devices let's
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say a switch and then I'm going to show you how to use to USP cables to connect to the router and to
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the switch.
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So much easier with a USP cable.
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So this device is actually going to have three console connections.
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Please note once again that this laptop does not have Ethernet ports on it.
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You do not connect a console cable to an Ethan at port on a laptop.
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This is using a serial or USP connection to the rod or a switch not an Ethan at port.
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This laptop only supports Wi-Fi.
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It has no Ethernet ports.
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I'm not going to use Ethernet on the laptop once again please forgive me for emphasizing this I've just
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seen too many people and heard too many horror stories of people blowing their console ports on their
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rods and switches because they connect to the Ethan at port on a laptop or P.C. please don't do that
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use either a USP or a USB B to console connect to like this OK.
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So the first thing I need to do is power up the devices.
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So I'm going to plug in the power on the router powered on
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switches like these used what's called a kettle lead in the U.K. So a connection like this.
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This depend on which country you're in.
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So the US will be slightly different but basically I need to just plug in the power of these devices
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and as you can see they booting up
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okay.
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So the next thing I need to do is connect the USP console cable to the P.C. and then I'll connect it
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to the console of one of the switches.
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So I've got USP to console USP cables are a lot simpler than that.
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All I need to do is connect
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USP to USP on the device much simpler or again USP
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to us be on the road.
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So what I've got is USP on the router console cable and one switch USP on the one switch.
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And I've got three connections on the laptop now.
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I'll plug these out and demonstrate them individually so that you can see how we can work out which
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devices which basically what happens is we see that device as a additional device on the laptop.
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So I'll do this individually so that you can see how I do it.
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One by one.
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But that's sort of the idea.
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So I've turned on the Cisco router it's making a bit of noise but hopefully it won't disturb the video
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too much.
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So I am now going to connect the Windows laptops console connection to one of the switches just to show
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you the full process I'm remotely controlling that Windows laptop from my Mac.
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It just makes it easier with the recordings but I'm physically working on that laptop OK.
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So hopefully not too noisy what I'm going to do now is connect the console port to the USP connection
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of the laptop so hopefully you can see that clearly I've now connected USP to laptop and the next step
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is to connect to the console of the switch.
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So hopefully you can see that console connection to the switch used to be on a laptop over there so
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use be laptop console switch.
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Got my first device connected let's set up the laptop now so that we can actually configure the device
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and to do that I'm going to use Patty Patty is what we're going to use to connect to the device OK.
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The Cisco ride has quietened down quite a bit now.
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Took a while made a bit of noise but once it did it successfully booted up at quieten down.
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What I now need to do is download a terminal emulation program so I've physically connected the laptop
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to the switch.
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But I need a terminal emulation program to connect to the console port in my browser I'm going to simply
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look for Patty.
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This is free software that you can download.
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So the first hit in Google I'm going to go to Download stable release so green and dot org that UK in
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my example I want to download the 64 but EMC
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I'm not going to download an MSE installer I'm simply going to download a 64 bit XY so generally that's
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the software that you want if you're using Windows.
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If you're using a Windows computer this is the terminal emulation software that I suggest you use free
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software used by millions of people around the world.
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If you've got a Mac you've got a built in console or terminal application and the same on Linux but
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on windows this is probably the easiest.
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So that's now downloaded to simple Excel file that you download and I'm going to double click on that
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Windows is complaining but I'm going to install this anyway and run it.
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And notice we told that we could use telnet as an example we could use SS H.
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But what we want to use is a serial interface so which serial port do we use.
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So to find that right click on windows start.
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Go to device manager go to Port com and LPT and what you'll see is we've got a USP to serial port here
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now.
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If you're using a converter like this they generally come with some installation software or you have
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to download it.
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So really old way of doing it we've got a seedy wrong here.
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You'd have to install the driver software on your laptop to get that working.
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Follow the instructions that you get with the converter.
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I mean the instructions are fairly simple.
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It's basically telling us that we need to install the drivers to be able to use this.
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So make sure that you have your drivers installed.
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Generally you get the drivers if it's a reputable vendor such as this or you can download them.
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In my experience the cheap stuff often causes problems.
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Fortunately today we have us be connections on the Cisco devices which makes it a lot easier.
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So you don't have to mess around with us but notice the computer's com 7.
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So in PuTTY I need to set this to com seven leave everything.
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I'll set the defaults so 9600 bits per second as an example click open.
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And what we should have when I press enter now is a connection to the switch.
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And there you go.
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I've got a connection to the device.
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Now this is known as user mode and I typed enable to go to privilege mode.
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The switch already has a configuration on it.
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If I log right out you would see something like this.
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And we would be asked to press return to get started.
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And when I press into or return I see what's called a user mode or user prompt if I use question marks
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I just typed question mark there.
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I see a list of available commands on the device.
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If I press enter it chose me one more available command so I notice more here.
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If I press enter here chose one additional command or line of output if I press spacebar I chose a whole
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page of output.
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Now just to demonstrate this I'm gonna erase the configuration of this device that command E N is enable
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that takes me to what's called privilege mode.
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This is shorthand for enable and then I typed a few characters and press tab to auto complete the command.
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Don't worry too much about this.
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I'll show you these commands in more detail in a moment but I wanted to show you what a brand new device
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would look like.
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So I've basically raised the configuration of that switch and it's now rebooting and I'll show you what
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it looks like in a moment.
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Once it reboots so what I'll do is while we waiting for that to reboot is let's connect the next device
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so for this demonstration I'm going to use a console cable standard USB cable so I'm going to simply
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connect it to a port on the P.C..
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So something like this simple connection to USB port and I'll connect it to the switch.
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So notice now I have USP on the switch USP cable on the P.C. and I've also got a console cable connected
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to the switch.
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So to connections on the P.C. OK so as you can see now this switch is booting up and it's booting what's
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called a burn image.
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That's the operating system of the switch.
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So while that's waiting once again all right click on windows start and go to device manager and watch
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you'll notice is under comports.
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We now have to comports This is my USP too surreal connection.
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And here's a new USP surreal device.
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Com 3.
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So what I can do is run Patty again so that I've got two instances of Patty running so I've got my original
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Patty running in the background.
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That's showing the device booting up and I've got another Patty session.
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So basically all I've done now is start Patty twice on this second session the comport that I need to
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use is com three so I'm going to specify serial there and change this to com three now actually what's
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happened at this point is my P.C. has blue screen.
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This is one of the problems when devices boot up.
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I've seen this happen so many times on Windows devices.
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So notice blue screen here.
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So what I would suggest you do is unplug the console cable while it's booting up.
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And then once it's booted plug it back in again.
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If you have that issue seeing that happen on Windows machines many times.
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Okay.
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So let's start again.
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I'm trying to make this real world and that's a real world issue that you'll often encounter okay.
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So going to downloads what I'll do is start Patty again
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on the windows start menu go to device manager go to comports notice I've got com 7 and com 3.
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Now I must say I've seen them many times with us B to roll over cables.
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Happens a lot doesn't happen as often with a USB cable so much better much easier today.
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But it is something to be aware of.
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If you're using a USP to roll over cable.
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Okay so the first one USP to Serial This is a surreal interface and it's com 7.
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So press enter and as you can see when the device is booted up fully we see a system configuration dialog
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and you can enter what's called the initial configuration dialog.
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I strongly suggest that you say no right there.
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I will demonstrate the initial configuration dialog so that you can see the full process but for the
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real world I suggest you don't do that you simply type No.
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And then the mode that you'll end up in is user mode.
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So if I press enter multiple times here I see switch with the greater than sign like this.
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This is a user mode press question mark once again shows me a list of commands.
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Press spacebar shows me a page of commands I can type E N press question mark at this point it shows
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me the commands available if I type E Question Mark I've got multiple commands e n question mark only
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command available at the moment is enable or press tab that to read types the command and completes
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it there and press enter that takes me to what's called privilege mode if I press question mark here
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I see a list of additional commands and once again pressing Enter shows me one command at a time pressing
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spacebar shows me one page of commands at a time many more commands available in that mode and once
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again my laptop has crashed so either there's a problem with the drivers on this USP cable so let's
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unplug that so I even need to update the drivers or something else is happening.
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So for the moment I'm going to unplug this USP to roll over cable and I'm going to use straight USP
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and let's see if that solves the problem
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but I want to make this video too long by trying to deal with a buggy driver.
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So once again on downloads start patty
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or run Patty go to serial but I need to know which comport to use.
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So the two composites are 3 and 8.
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Now notice it's changed because I'm no longer using a USP to roll over cable I'm using straight USP
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here.
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So comport has changed so this will be com 8.
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Now and there we go we back on that switch.
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Notice the switch says console media is USP.
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So once again pressing question mark I can see a page of commands at a time when using spacebar.
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Many many more commands in privilege mode or enable mode than in user mode.
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If I type disable that takes me back to user mode.
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Okay but let's get the other device connected so Com 3 in PuTTY I can right click at the top here and
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say new session serial and these serial port that I want to use here is Com 3 so this will give me a
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connection to my second device.
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Notice I typed enable here to go to enable mode.
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Now in this device I could use the command show version to see what kind of switch it is.
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I'm told that it's a 35 60 C switch.
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This is the version of operating system so that's similar to saying Windows 10 or Windows 8 or Windows
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7 or whatever.
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This is the version of operating system on the device.
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The device has been up for 25 minutes at this point.
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Press spacebar shows me additional information about this device.
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Whole bunch of information here.
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You'll learn about this as we go through the course.
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But once again show version is a command that shows me the model of switch.
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Let's do that on the other switch.
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So show version here.
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This is a 35 66 switch.
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So let's give it a name.
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And in Patty if I highlight it's actually copying that information conf confetti or configured terminal
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so type SEO and F press question mark shows me that the command available is configure in the press
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tab no question mark shows me that I can configure this device multiple ways one of them is terminal.
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So in a press t press tab that takes me to what's called Global configuration mode on the switch and
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if I use the command host press tab to order complete and right click now it's pasted the name that
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I copied previously and noticed the switches name has not changed on the other switch I'll do something
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similar.
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So show version on the switch.
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This is my 35 60 C switch on the press q to quit the output here.
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So how do I configure a switch.
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What's the command can you remember it.
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It's conf T for shorthand or C O N F tab t tab configure terminal and I can use the command host for
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shorthand or I can type it out fully if I want to.
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That changes the name of the host.
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This is what's called Global configuration mode once again that allows me to globally configure the
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device.
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If I type and it takes me back to what's called privilege or enable mode of press Enter here again and
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then I can use the command copy running config startup config to save the configuration.
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This is basically saving a configuration from memory to hard drive.
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This is a flash drive.
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So basically saving it to envy Ram is what it's called non-volatile RAM.
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I'm saving the configuration of the device now there is an older command that I find a lot easier.
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So on the first switch the thirty five sixty six switch.
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If I type and that takes me back to privilege mode and I used a very quick command this let me do that
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again W R is an old command that writes the configuration basically saves the config again.
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That's an older command and an easier command to use then copy running config startup config for the
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exam know this command copy running conflict startup conflict for the real world.
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I would know W R OK.
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So I've now showing you how to connect to the console of two switches let's connect to the console of
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the router.
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