CCENT or CCNA 21 THINGS to know about SWITCHES - 4K Video 2018

welcome to another battle video from network engineer Academy now this topic it's all about the 21 things to know about the switch 21 things that you better know about switches now if this topic is new to you what I'm going to ask you to do is for you to go through this video not once but twice and obviously make sure you take notes now if this topic is not new to you because you've been in the IT for a few months years or maybe you been working on Cisco switches now let's go through this exercise let's go through this process what about if I come up to you like right now and try to engage with me and I ask you can you tell me 21 things about switches go like go would you be able to do that you know I went through the process myself and I was able to come up with 11 and I'm like you know I need more than heaven things so it took like 25 minutes you know for me to come up with that 21 things and that's the reason why sometimes we think that we know a lot that we know better but sometimes it's for you to be present and be like okay how can I go through this video and yes probably I may know a lot of what Jorge's gonna say but maybe it's one to three things that I may not know that will be good to know one second the way that I will walk you through that 21 thing so whether I'm gonna approach that 21 things about switches because I know you will be able to learn a lot and how to communicate what you know and how to connect it with other topics related to switches to that 21 things I'm going to walk you through this is powerful this is how I'm able to accelerate the process of learning technical topics so go through the video and the is what I'm gonna ask you to do take two minutes like right now take two minutes and pass the video and you know get a notepad and just go like let's see if you are able to come up with 21 things about switches and compare you know that things that you came up with and that things that I was able to come up with and I know they're probably more than 21 things but obviously I don't want to make this video too long and I just want to focus base and how would I answer that question if someone asked me so let's get right into it okay the first thing that went through my mind was well you know when you take the switch out of the box it works that's it you know when you take a switch out of the box it works so let's say that a manager come up to me and asked you know Jorge I need to know how much you know about switches you know because we need someone obviously that will be able to configure and troubleshoot switches so I want to know how much you know that way I will know if I will give you the job so can you come up with five seven things one of the first things is well you take the switch out of the box and it works now I can stop myself right there and move to the second one but you see how can I make that more interesting how can I make it in a way that I can connect with a manager right so he can see me there I know Joe I know more than just switches so this is something that I will say related to number one well let me tell you like when you take a switch out of the box it works so you have let's say those five computers and you want those computers to communicate with each other well you're gonna plug them in under switch using a twisted pair cable and guess what they're gonna work they're gonna they will be able to communicate obviously if those computers have all that tcp/ip settings you know that IP address the subnet mask no need for Gateway because we're still working on the local area network but yes you know you take the switch out of the box and it works not like routers by the way you know you take the router out of the box and it doesn't do now you have to console in connect to it and configure that router in order for the router to work so you see like the big difference and how was able to just say oh you know switches work out of the box and by the way these are switches okay so let's go to number two Connect and allows and devices to communicate with each other so that something that I said previously right so I switch allow end devices now what's in devices well that can be computers that can be printers that can be service like any end device right to communicate with each other as long as they they they have you know that tcp/ip settings and obviously you know switch is that something that I'll probably come up in the next few slides it's all about IP addresses right and you probably wrong Jorge hits MAC addresses come on so yes that's my cat versus no IP addresses right so again right so number two connects and allows and devices to communicate with each other now this is something for you to think about and be like okay that makes sense but how can I make it my own how can I add a few other things they are related to this topic that way can make a lot more sense to me and obviously for me to be able to recall this information when I need it man you see that's how teaching technical info should be okay so anyway let's move on so tree can be managed or and managed okay I don't know what that means well that's one of the things they come through my mind and that was because you know I was looking at at that router that I have and I have like the small you know switch not a Cisco switch just a small switch now managed or unmanaged obviously what that means is that you can go to bed by you know and get those switches that will cost you probably forty dollars sixty eighty dollars and you just basically take take the switch out of the box right you plug in the computers that you want to for them in order to communicate with each other and that's it you're not gonna connect to the switch to configure that switch now manage are basically when you manage like Cisco switches right and obviously that's other brands out there but let me focus on now that's when you know when you go through the CCNA or even when you go through your CCT you are able to learn and how to configure you know Cisco switches and that's again you know managed but you see that's another thing for you to think about and probably you're like you know 4k I didn't come up with that but I knew that so this is why this is so huge for you to go through the videos that I'm posting because I really need you to use everything that you know you know many people out there in the IT community they're really smart like they really are they know a lot even in the IT for many years have been working in a lot of projects but when it really comes down to fix an issue a lot of the times or when they're about to go to on doing a project and I know this because I get this from many project managers you know because I asked as you know many questions that they're unable to ask the right questions or they cannot you know communicate what they know in a way that they can understand you know the other people like the vendor maybe the vendor it's not that technical you know maybe the other project manager it's not a technical and it's really difficult for IT engineers for them to do that you know and the way that you go through this process doing going through this video I'm teaching you how to access information did you know already in how to connect it with something that's related to that question that probably someone is asking you or related to the project that you're going to work on or related to that issue that you are working on that you are working on fixing this is what is so huge to go through these videos not once but twice okay so again can be managed and manage Sonam and then X which is the right so are that Cisco switches so now number four have an operating system well that's obviously if they're managed switches right now this is something good to come up with right well they have an operating system now let me ask you right like what's that the operating system is the iOS iOS stands for interconnected operating system I think but you don't need to know that no one is gonna ask you all can you tell me what iOS stands for they're not gonna ask you that so don't focus and memorizing something that's not gonna help you but a good thing for you to know is the versions like right now right this probably makes sense yeah you know like when I do because I've been working in the IT you know Jorge like when I do some switching labs yeah you know like I know they have an operating system I know it's called iOS okay will you be able to tell me some of the versions out there you see if you're not able to tell me that so how do I know if you really know what you're telling me did you know like those little things makes a difference for someone in order for someone to see you like wow you know you are an expert like Wow instead of like oh my god this is another kite it just went through the book memorize a few things and completely like useless so now I'm asking you what some of them are versions out there you know we have twelve point one twelve point three twelve twelve point five we have all the way to 15 you know fifteen point one fifteen point five I think it's the one for some of the devices out there right now but you see that something that you need to know and obviously their various versions depending on what the features do you have on that device and a network device but again that's good to know like Jess you know like I've been doing some a lab switching lab configuration based on that twelve point one obeys and at twelve point three or you know I just got these routers out of ebay or switches out of ebay and they already have the five fifteen point five and that's something that I've been working on right now and doing this and doing that pan-pan pan-pan you see it's a completely different way and approach and how you communicate what you know and what you are learning so number five we still have a lot to go through have different models now again right what's up for meadows and this is I do remember this you know when I go back and when I went through the job interviews I know that and one of my previous job one of the guys asked me you know we were talking about the things that I knew how to do on switches and he told me can you tell me some some of the Morrow's the of switches that you have worked with and I was like you know that's a good question I mean I know that iOS and this and that I couldn't answer that question why because I didn't know any better that was like many years back that can happen to you that will tell a lot and how much you really know because you see they don't really care that much about their asking your technical question and for you to be able to answer a technical answer they want to select the big picture and how much you know and how would you and how would you be able to basically approach an issue you know working on a project you know dealing with users that's exactly what they're looking for how would you approach that you know and that's a reason why they ask you this type of question so now I'm asking you right now you know if you are one of those guys are like you know for here like I'm still gonna go through your video but I know that I know those 21 things okay it's only some of the models tell me some of the Morrow's you know we have that 2960 we have that 3550 we have the 3560 we have that 37 50s you know we have the 4500 we have the 6500 you know and that's something that you learn through your CCNA routing and switching through your ccmp routing and switching now that's um and that's basically four and based on within the company now we have the ones that we have entertain sooner right and those are like the new generation generation of switches very very expensive that Nexis switches now let me ask you do you know some of the models of the switches because by the way if you don't have experience you know they're kind of the same commands but they are not the same commands and both switches are from Cisco and again the nexus switches that's basically something that you will find and the data center ok so again do you know some of the models of nexus switches you know I have worked with that 2000 the 5000 and once the 7000 so I know there's a thousand s be 18 core be I don't know I never work with dos but I know that a nexus a thousand 2003 porta three four five seven you know a 9019 it goes from seven to nine thousand you know and those obviously cost probably millions you know that seven in nine thousand I will be dependent on what type of a service and everything that you are getting you know but I can go that those are like that expensive okay but that's when you want to Sela follow that data center pad okay but but yeah you see we have the 2096 is 35 50 story five six history 750 s 4500 6500 - now what's the big difference this is another question that they asked you know and that was on my previous position and any better back then so I was able to answer all of the questions really badass but they asked me this question Corte what's the different between a tariff at 35 15 a 6 at 35 50 switch with at 3750 switch what's the difference between those two switches would you be able to answer that question what's the main difference why would I get a 35 50 that obviously will cost me less instead of 30 at 3750 they obviously will cost me more why I mean you know switching that's probably what you thought when you were going through this video so tell me do you see these questions are exactly what's probably holding you back for you to get a next job or for you to get a promotion because you focus too much under Nicoll aspect of it based on a book and that's not gonna help you now because you kept your CCNA now because you have your network class or all these beers that means that you know a lot yet you may have an idea but if you don't know how to use what you are learning and be able to apply it guess what this is gonna be another average IT engineer you're not gonna be one of the top why because that way did you approach the way that you learn things so based on that I'm like okay let me show you paste and the latter I have one so I took some of the switches so that you can see the difference and that I can sell your body okay so here we have at thirty seven fifty so this is at thirty seven fifty okay 3750 switch okay and it's not too heavy the other one that I'm going to show you is heavier now what's the big difference between these two this okay I can proud you can probably see the same camera now that basically is when you are able to stack switches on top of each other and you can go up to if I'm numb is taking up to nine switches you know what that means you can set up like nine switches and stack them in the back now but either a twisted pair cable in front no like those really thick cables in the back in a way that you can manage those nine or seven or five switches as one switches so you basically assign in one IP address and that five switches and you just manage those switches as one and obviously if one switch goes down guess what you still have everything up and running okay with other computers or devices connected now this one is heavier and this is at thirty five fifty and you can probably see like what kinda looks the same what kind of looks the same but it's not the same why because if I go in the back right you don't see those two ports right here for stacking so that's a big difference so now they if you knew that that's great but if you didn't know well now you know right the big difference and this is something that you can probably ask one of your friends it's kind of going through the same process a by the way do you know the difference between as 3750 and at thirty five fifty switch and let's see that that means yeah they can probably a few other things but that main and more likely what they're looking for when if they ask you that question is that stacking okay so now you know so switches this is probably one of the first thing they come up in your mind you know it works under layer two of the our same arrow the data link layer so we have seven years of the same arrow obviously switches work on the layer 2 of the OSI model and yes we have other type of switches they're called layer 3 switches but that's for another video but right now layer 2 switches and they work on the layer 2 of the SMR oh and by the way because I know probably some of you will be like you know quark 8 you must stop why because you just show me two switches they are layer 3 switches you know because of the matter of 37 50s come on let's get to a point we're talking about switches okay so switches layer 2 switches work on a layer 2 of the OSI model and yes if you want it to be like so precisely those switches that I just show you that 3750 and that 3750 yes they work on the layer 3 of the OSI model we're just talking about the general you notice I know some people are just looking for something to find you know I want to see you doing a video I wanna see you doing a video and let's see how old you do oh come on you know instead of putting all that you know people take the time not just me that's also other people I mean they take the time to give you some value for you to start like putting like no I was about to say something bad I'm like be quiet so anyway so let's move on because we still have number 6 ok so data link layer of the OSI model now obviously lay your switches are each physical addresses MAC addresses ok so you know that so again what's a MAC address right so it's a physical address what that means it doesn't change and the end device and that's probably something that you already went through and some of that 33:3 videos now you have an access that 33:3 videos are not cost to you that should be a link on top on the bottom underneath this video 33 billows talk about MAC addresses and I go and I approach that topic really different than most people again how can you really see it in a way that can you apply it you're not related to other topics so you can be a badass and the way that you communicate for you to recall that information and all that other good things so again i'm mac address equal to physical address and that's exactly what switches are read matter IP addresses MAC addresses now we have what we can we have at kam table a MAC address table some people call but again if I want to be so like technical about it it's called a kam table if I'm not mistaken and this is not something that you have to know because no one is going to ask you you know and it's not going to help you for you to get a better job but if I'm not mistaking its content address or addressable memory if I'm not mistaking now if I if I'm mistaking you can put in the comments and you can correct me don't care you know but anyway so our content accessible mem oh there we go you see some things I don't know what I'm putting on my own it's like so content addressable memory and again that's the same as a MAC address so basically not to make it this too long and that's a video out there where I teach what's the switch like in really detail what's a switch and I talk about these things you know like how those computers connect to that switch and based and that it's going to send a broadcast right and it's gonna basically get the MAC address of that end device so I have three computers connected to a switch and I'm using port four five and six so once they communicate for the first time and more likely that's gonna send a broadcast asking hey I just connected to a network I need that I need an IP address so I'm just gonna sense a broadcast looking for a DHCP so at that point that switch is gonna learn oh so I'm poor for I have that device with a following MAC address okay oh I'm poor five I have n device with the following MAC address and that's basically what's the store and if I'm not mistaking it's about five minutes what it will retain that information if I'm not mistaking okay now let's move on to number nine so make a smart forwarding decisions based on as you know right Mac addresses so because now I know the devices they are connected the sewage I will be able instead of sending a message you know to all of that computers when I get a broadcast and I hope you know what's a broadcast by now but that's basically saying hey you know like let's say that I have 20 students you know in front of me and I don't know your names and let's say that you're David but I don't know that you're David so pray I have 20 students I'm like David who's David you know your mom is calling you and like that's me okay so now I know you're sitting like in front there I'm front and the second or whatever I know where you are right now so next time someone comes to me and say hey I need to talk to David Ortega has a phone call I like hey David like someone is calling you I'm not gonna like broadcast who-who's David so it's the same you know what switches you know once that switch just learn that MAC addresses and where those end devices are located and what port you know that switch will be able to forward that message it's smart like being smart about it okay forwarding that is based on that on the Mac so let's move on 10 so we have port and that's basically it's a hundred a thousand that means one give up gigabit per second and ten gigabits per second now that's not based and that Porsche we have there and the 24 or 48 port that's based and we have sometimes - sometimes we have four all the way and me that will be all the way on the right side okay and that's when we we we can set up some SFPs a small form plugins or portables I think you know it's too much info but let me show you okay so like like right here right so all of this if I see yeah so all of this there are a hundred megabits per second you know that connection so we have four here now this for did something for us to plug in and I don't think I have one right now with me put that something that you can plug in that's called a small SFP a small form pluggable I think it is you know and that's depending what type of connection are you gonna use and that can be a the connection okay and that's again based on the speed and you can go up to 1 gigabit or up to 10 gigabit okay so that's basically what that is and I don't know whether I show you that router when I have it right here you see we have 1 2 3 4 we have this is for uplink this is for a console we have the console through rj45 connection and rollover cable console cable or we have the mini USB you know for us to plug into the switch but we have 1 2 3 4 that we can connect that oh my god a fiber optic connection we have 10 more to go 11 I guess so Auto and eix media independent interface cross over again right if you're going to connect assist a switch to a switch what's gonna happen right you need to have a crossover cable now if you don't have one because most people don't right you can connect a straight to cable and guess what all of the switches out there right now they have that technology or that feature however you want to call it that mdi-x what that means is going to detect it it's gonna switch the paint and boom you have that crossover cable okay so that's exactly what that is so that's something else for you to think about switching ok 12 forward broadcast messages ok so forward broad cat broadcast messages that's something that you probably know that routers don't do routers don't do that switches do right so I sent a broadcast and that's which is gonna be well I don't have it in my cam table and my MAC address table so guess what I'm just gonna pan you know put it out there okay to see who's gonna reply to that broadcast so it's gonna forward that so let's see 12 frames so and you have I have the same number anyway so frames okay frames frames switches it's all about frames now if I take the frame I'm gonna find what inside of it that source and destination MAC address right and obviously that's another thing that we're gonna add to that and that's basically that CRC Oh F f c s okay but that for another video you know what's gonna want to go through this really quick so the next one billon so this is probably one thing that crossed your mind you know be lanced and that's a video by the way there talk about violence and really did sound and this is something that you should know by now right so you have one switch you have one network now you can have three four five networks really up to you but that means that you have to create three four five bill ends now for those computers from different villains to be able different networks different segments okay for for them to be able to communicate with each other if you have a layer 3 switch like the one Dre show you you can do inner villain switching right no need for our router because those layer 3 switches are switches and routers now the other thing that a lot of people don't know or forget or whatever is that when you have a layer 3 switch out of the box in words but it's just a switch a layer 3 switch out of the bot it's just a suite you know the way that you can also make it a router is when you type what command so you're going through the job interview process and I ask you what's the command what's the command so you can make that layer 3 switch or router as well IP routing right if you don't do that IP routing you just have a switch in front of you ok so obviously you need to do I periodic and then you can do in Erbil and routing for you to for that computers connected and that physical switch to be able to communicate with one another and that's if you want to make that happen now if that's all just a layer 2 switch what you need to do is for you to add a router so you can do router and the stick and then that's trunking and a few other things that I'm gonna teach you in other videos I don't have you see it's many information going through my mind but you see that's how you need to talk to people you know when they ask you something about balance is not like oh yeah it's a bill to a local area network and switches and yes you know you divide networks and yeah like no what else can you say about it you know talk for about about that for five minutes you know when they ask you something talk about it for five minutes ten minutes you can find many other things related to that topic that way they can see you that you are a parrot that you aren't expert because now you are teaching you're not only answering their question oh okay fourteen trunking so that's the other thing that I mentioned right so switching trunk and more like of you have switches if you work in any company you know they I mean all companies have be lanced so what that means switching equals billions billions equals trunking trunking equals switching and switching equals be lunch is so funny anyway so let someone support security so that's another thing that you think about and yes once you go through your CCNA routing and switching that's something that you learn really well and that's something that I can teach you through the membership site or that something if you want me to help you have that interaction with me you know I can help you through that coaching program so you can accelerate the process for you to get a better job in the IT field and not only for you to completely differentiate yourself from everyone else because that's exactly what we are here for to help you to do that so sixteen inter channel so now it's a three channel now if you knew about switching tell me explain that to me what's a third channel and when will you use a three channel tell me right so each channel that's basically getting like two for let's say six physical connections between switches right switches to switches and bundle those let's say for physical connections in one big 12 connection oh okay you have to assign those based on a group a channel group okay again that's something that you will know how to do one your CCNA but yeah it's another thing for you to think about you know eater channel you know let me go back okay every company that I work for when I was a network engineer and network admin every company and even in the IT for about 12 years and every company that I worked for and I've been to many companies they have billions trunking they have port security and they have eater channel and they I don't know if I have this and one of the flies for about the stacking you know what I just show you so if you want to get a job as a network admin or you want to go all the way to network engineer you have to know those topics really well because every company that I have worked for and people that I talk to those are like main skills day you must it's not like you maybe know you must have and now only for you to configure that because more likely let me tell you one thing that probably people don't tell you that most of the time it's not you configuring something most of that time is you're fixing something is you finding what's the issue okay so that's a way that you need to approach when you learn something most poop most people don't do that they just go through all OPA autopilot and learning and also in their IT career don't be one of them so 6:17 so a spanning tree protocol again that's another thing that you better know that's not something that you configure because as you know right you take the switch out of the pot it works and by the way it already has STP enable you know put once you plug it in with other switches you may have some issues that you need to fix or you need you have to see how you know a spanning tree protocol or wrap it a spanning tree protocol it's configure between those three four five switches because maybe that's a better design way for you to do that and that's where you come in as an expert for you to be able to like you know this is covered configure everything it seems fine but I found a better way on how to do that so we can probably do a downtime you know or the next time we do a downtime that I can do that and are probably thinking like 10 15 minutes and it will be so much better because if this happened or that happened blah blah blah blah blah you see that's exactly what's going to allow you for you to get a promotion for you to get a better job in people see you like as an expert okay so the other one that I think about its power over ethernet so what that means you plug in the phone and voila the phone it's on because it gets the power out of the switch now not all of the switches have that let me go back most of the Cisco switches and other vendors have that already because right now everything is voice-over-ip you know the wireless access point the same you know you don't connect them to to the electricity to the wall you know you just grab the network cable and then you run it and back on the switch and boom that the wireless access point turns on now all switches have up on most of them do that feature and if I'm not mistaken let me show you here because I know this one has so right there it says 48 port and that's basically a POA power over ethernet so this one's right here that's basically what that is so I connect this switch basically and then I pull again some of that computers I mean some sweet phones and they're gonna be turn on and then that computer I will plug it into that phone and then I have to do 2 billions within that port and a few other things you see probably you didn't know that all companies not all of them but most of them do that ok so again a power over ethernet to more if the channel I think that's something that I already told you you see even though like I go through it ok so that's something that I told you 20 can be fixed or module can be fixed or much cooler will you be able to answer that question can be fixed or can be much more what does damming like really what does that mean candy fix or much more so when you have the 4500 of the 6500 you can add modules I can add a module of 24 48 more ports instead of buying another suite ok so that's exactly what that is like this one right here it's just fixed there's no way that I can add more ports like that's no way that I can add more port it's fixed I buy it that's what I get done but if I get a 45 6500 then I'm gonna get a modular switch and that's something that I can add ok and add more depending and if my company is going to grow and I'll have the budget or maybe in the next two years you know we're gonna go from I don't know a hundred users to 300 n you know that's when someone needs to come in and ask your aqua Jennsen based on that they will give you a few options based on your budget as well okay understanding your network so the last one console port yes you know like obviously it switches you need to think about that you know the console port for you to be able to remote in and be able to connect that now if I ask you this question how would you be able to do that obviously at first when you take the switch out of the pot you have to physically go to that switch and connect your computer with using the console cable but at that point what options do you have for you to be able to do that remotely what would you answer me how would you answer me and that's found it and sha SSH now if you're able to answer me that you probably will be able to answer me so what's the difference between using telnet and ssh what's the difference well Jorge come on you know telnet not secure so all the information that you're going to send to you can grab Wireshark and you will see that information that you send in basically SS a SSH it's encrypted it's encrypted and by the way port what port what port telnet and what port s as age so 22 and 23 right 22 SSH 23 tell me you see what else can you say more about because I can just probably ended up either by saying yes you know switches console port you know you need to connect to a switch so you need a console port done no I found another way for me to add more into it that's exactly how you need to answer questions so that's it that's all I have so make sure you go through the other video when where I go in really detail about a lot of the topics that I talk about here and the switch because I'm doing a video about okay what's the switch and I go and talk about what's a switch and then I do a video like this one like 21 things 15 things so in this case 21 things about switches and that's basically approaching the same topic from different directions that way you are learning this topic of switchings switches from two different points of view attacking the topic two different ways and da my friend will help you a lot for you to really get this so that's all I have make sure you like the video comment on the video and follow us you know I'm taking that time to do this video so follow us you know send me a message and check out our membership site follow us on Instagram and that's it that's all I have go to the next video what we'll see you'll talk to you and the next video so I will see you there [Music]

Channel: Network Engineer Academy

Views: 21,832

Keywords: CCNA, CCNP, CCIE, CCENT, COMPTIA, COMPTIA a+, cOMPTIA nETWORK+, FREE CCNA VIDEOS, NETWORK ENGINEER, SYSTEM ENGINEER, NETWORK ADMINISTRATOR, cisco certifications, BGP, EIGRP, OSPF, MPLS, VLAN, SWITCHES, ROUTERS, FIREWALLS, CBT NUGGETS, comptia certifications, DEVRY, INE, cisco academy, free ccent videos, MAVENENGINEER, OSI MODEL, TCP/IP, IP ADDRESS, DNS, DHCP, NAT, MCSA, VCP, VMWARE, it certifications, VSPHERE, CCDE, CCDA, DOMAIN CONTROLLER, ACTIVE DIRECTORY, VIRTUALIZATION, CLOUD COMPUTER

Id: 7GZcesJAfeI

Length: 38min 34sec (2314 seconds)

Published: Fri Apr 06 2018