Switching Extreme Networks | Zusammenfassungen Informatik

1:28

What is a Switch?

01:34

so what exactly is a switch could be unfair to assume that everybody knows or

has seen what a switch is but in essence a switch is a device a hardware

device that connects humans on the one side to resources on the other

side and those resources could be in a corporate

01:54

environment they could be a central printer there could be a security system they

could be Access Control they could be connecting to an HR System or a finance

system all of those pieces need to be connected together the switch is the device

that enables that in your

02:11

home you might also have a switch it might look slightly different to what a

corporate switch looks like probably be a lot smaller a lot lighter a lot less

features but at its very simplest it's creating connections between humans

devices resources

2:30

History and Product Naming and Placement

02:34

extreme Netflix as a company has been around since 1996 and in all that time

we've built up a great reputation for making fantastic Hardware fantastic

switches but the thing we're most famous for is this purple color that we've

painted our switches of course it

02:52

doesn't add anything to the functionality of the technology but it looks really

great and if you've ever walked into a data center that has our equipment you

walk in and that purple is so easy to identify now as a networking company

switches was the first thing

03:07

that we've done and of course we've grown we now do wireless technology as

well and of course we do management software so we really do an end to end

networking solution in all that time we've grown organically and we've also made

Acquisitions we've bought in

03:23

different types of Technologies and different companies and taking their

Technologies integrated them into the stuff that that we sell and today we have a

portfolio that can compete with any of the major players of course this is going to

affect the naming of our

03:40

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What is a Switch? 01: so what exactly is a switch could be unfair to assume that everybody knows or has seen what a switch is but in essence a switch is a device a hardware device that connects humans on the one side to resources on the other side and those resources could be in a corporate 01: environment they could be a central printer there could be a security system they could be Access Control they could be connecting to an HR System or a finance system all of those pieces need to be connected together the switch is the device that enables that in your 02: home you might also have a switch it might look slightly different to what a corporate switch looks like probably be a lot smaller a lot lighter a lot less features but at its very simplest it's creating connections between humans devices resources 2: History and Product Naming and Placement 02: extreme Netflix as a company has been around since 1996 and in all that time we've built up a great reputation for making fantastic Hardware fantastic switches but the thing we're most famous for is this purple color that we've painted our switches of course it 02: doesn't add anything to the functionality of the technology but it looks really great and if you've ever walked into a data center that has our equipment you walk in and that purple is so easy to identify now as a networking company switches was the first thing 03: that we've done and of course we've grown we now do wireless technology as well and of course we do management software so we really do an end to end networking solution in all that time we've grown organically and we've also made Acquisitions we've bought in 03: different types of Technologies and different companies and taking their Technologies integrated them into the stuff that that we sell and today we have a portfolio that can compete with any of the major players of course this is going to affect the naming of our 03:

products as we've acquired Technologies we've also acquired names that can lead to a little bit of confusion about the naming of our products and I'm going to explain the naming specifically of our switches and the operating systems that run on these devices so take this 03: journey with us it's a fascinating one as we go into the world of switches you're going to hear me talk about two operating systems throughout this series and I'll use them interchangeably even though I'm going to try and focus on one specifically I'm going to talk about 04: exos and I'm going to talk about switch engine exhaust standing for extreme operating system every switch that you buy from any manufacturer is going to have an operating system on it up until for a point in time we used to refer to that operating system as exos then we 04: introduced about two years two and a bit years ago we introduced the concept of 4: Universal Switching 04: something called Universal switches and the reason we did that is because we had this great technology called Fabric and we used to make switches that ran Fabric and then we had other switches that ran exos and you can imagine it means two separate devices but essentially the 05: same physical switch so we brought these two operating systems into a space where we could give a customer a choice of which one they wanted on the same physical device Universal switching so you can now buy a device from us a purple switch that device has the 05: ability to run two operating systems on it either Fabric and if you're interested in fabric the previous welcome series that we did covers that in detail so you could run it as a fabric switch or you could r un it as exos now when we introduced Universal we 05: stopped calling it exos we now call it switch engine it is the same operating system the same computer code the same everything it's just a name change so for the purposes of this series we will talk about switch engine for those of you who already have our gear in place 06: that just translates to exos that's all it is but let's talk about switch engine why is it great why the universal switch why that technology why would we introduce it

be a couple of hundred of them in big Enterprises hundreds of devices or if you think about your home it could 08: be one single device because you plug your printer in you plug your TV in you plug your Xbox in all of those are going into the edge device the next layer is what we call the aggregation layer let me use that example of edge I spoke about when I said you could have 09: hundreds of these switches or access points sitting on the edge if you have all of these switches and access points all with users connected into them hundreds maybe thousands where does the data that comes out of these switches go to that goes to an aggregation switch an 09: aggregation does exactly what it says on the tin it Aggregates the data it pulls in it collects the data from all those hundreds of switches into a much more powerful switch it still has the ethernet port it still has fiber optic ports it's got all of that but it's much 09: more High spec much more high speed capabilities the aggregation layer the layer behind the edge that sucks in all of the data and then what do you find beyond that you find the core what we call the core and that generally sucks up the data from the aggregation layer 10: and traverses it pushes it out onto the internet the core layer so those are the terminologies that's the terminologies that network engineer is a networking companies sell their products by they will sell you switches or devices for the edge devices for aggregation layer 10: and devices for the core now that has simply been well that has been for a long time the normal the classical approach to building networks and and to naming networks there is a different approach as well with the core is taken out and you just have the edge and you 10: have the aggregation layer because switches nowadays on the aggregation layer are able and capable to connect you now certainly extreme Network switches do both layer 2 and layer 3 connectivity which means they are able to get you directly onto the internet so 11: we have a classic Model and we have the more modern approach to doing networking all 11:

Hardware Overview 11: right we've spoken a lot about the capabilities that these switches have that the operating system is able to do let's look at a couple of switches we've brought two into the studio the first one is a summit X480. it's one of the older switches that we have we'll start 11: from left to right and we'll work our way around the switch so firstly on on the left hand side over there you'll see the old connectors that we used to use to to get into the console that would be what we call a serial connector a nine pin connector next to those we have 11: other ports you can see that they are blanked similar to this and we'd use those for a stacking for example the next ports that we have over there are the traditional RJ45 ports with different capacities from one 100 Mega bit per second a gig 10 gig for example 40 gig if necessary 12: then you'd have over here these ports again which are all blanked out now the design around this is so that the customer can choose how they want to use these switches this gives the customer options so they can have these ports over here their SFP or SFP plus ports 12: and they can contain different types of fiber optic connectors to the right we then have the management ports the switch management board so the RJ45 and a USB connector as well and finally on this side right down the bottom on the right hand side is the an indicator LED 12: which shows which membe r this is in a stack stacking allows you to take up to eight of these and make them behaviors if they were a single switch so that gives you that indication of what the stacking is on the left side of the switch we have the mounting plates they 13: of course can be moved forward and backwards depending on how deep you want to set them into your rack and then of course these would clip into your your calipers in in the back of the rack so that you could pull it out and push it back in when you needed to do any 13: changes the height of a switch is normally measured in um use or are used that simply signifies this is one Ru and you have most other switches that also have that same height standard height standard widths for any Communications rack moving to the back we have a couple of interesting

you can just plug it into that USB port next up is the console and the Management Port those top two ports followed by underneath you have two blanked ports now those are the stacking ports you can use them as one gigabit or 10 gigabit stacking ports remember you 16: need special cables for those stacking you can have up to eight of these devices in a stack turning this essentially into a single switch with 8 by 36 or 48 ports the next thing that you have over here is the Uplink ports again these uplink ports come with SFP 16: plus connectors or blanks and you would need to purchase the connectors that you'd need for whatever use case you need short distance long distance Etc after that you have ethernet ports there are 48 ethernet ports on this particular switch moving to the left of the switch 17: you can see at this point we don't yet have the mounting brackets connected to this model over here but that's just in the packets and we'll connect that up later moving to the back of the switch unlike the previous switch we saw a few minutes ago this one doesn't have 17: redundant fan s it's got three fans but none of them are redundant now it does have a built-in po wer supply and then it has the blanking panel if you wanted to add a second power supply into this model foreign coming to this side it's exactly the 18: same as the previous side nothing new to see and we'll bring this device around really great piece of Kit not as heavy as the previous model shorter than the previous model but again a 1u rack model now this model over here is actually the 5420f-16w32p4E c it's it's a it's a real tongue twister but there's actually logic in the name the 16 w means these 16 Portia have 802.3 BT power meaning they are able to offer 90 watts of power to power up devices like security cameras for example for the next 32 ports you have 18: 802.3 at Power which is 30 watts of power and that's going to power up things like security systems or even an IP telephone on your desk the 4xe means those four Optical ports that you have [Music] 19: Features of our switches - 5420 19:

I just want to cover a few more points with these switches and the first is the power most switches will have AC power on them but we do have a smaller range of switches that have DC power as well it's really a small range the ones that I've seen are desktop switches 16 Port 19: switches and pretty silent switches so their fans don't come in until a certain point in time so you have the ability to have both of those options another term that you will come across is vim Vim versatile interface modu le this switch also doesn't have that but would be a 19: component that would plug into here that gives you the option of having a different type of connection method some data centers use the concept of hot and cold corridors to help them extract the hot air out of the data center as quickly as possible some extreme Network 20: switches have capabilities that will help data centers manipulate that airflow generally speaking hot air is is pushed out the back of these switches some of them not this particular model but some of them have the ability for you to change the direction of the 20: airflow and to push it out through the front so why would you want to change the airflow well if you're in one of those hot corridors you really don't want the airflow to be blown into a cold Corridor so you would reverse that and the air would blow out the front into 20: that hot Corridor where they can then extract it to cool it down blocked and unblocked switches what do they actually mean well a block switch is a switch that does not have the capability to push the maximum data rate right across all of these ports full time all the 21: time 24 hours a day it would block some of that and unblocked switch is a switch like this one that is able to transmit and receive data at the maximum rate one gigabit per second on every single one of these ports i n no way is this a comprehensive end-to-end explanation of what these 21: switches are capable what the physical switches have in there but if you go to the extremenetrix.com website and you go look for the data sheets on these switches there you will find accurate information on what the full capabilities of this switch are [Music] have lots of URLs lots of QR codes so have your phones at the ready and it will take you to all those parts of the documentation that Isaac's been talking about

documentation.extremenetworks.com that takes you to the whole documentation page and if you're going to be using switch engine on these switches that we're talking about here then I suggest that the very first document that you have a look at is the document on release node for this version of switch 03: engine so you're going to see on screen as I browse through the version number of this particular instance is version 32.1 and as you go down and look at the table of contents you can see the important stuff that is in here what's new right everybody wants to know what's 03: new what improvements have you guys done over the previous version this is the documentation where you find that is information things that have been fixed new features Etc what Hardware does this support what Hardware doesn't it support this is a fundamental document I suggest 04: the very first one that that you read through it's not one of the long ones it's actually quite short but it's worth your while make the investment documentation.xtremenetrix.com and then look for release notes after you've read the release notes the next document that 04: I recommend that you get into is the user guide this is the switch engine user guide when I open this document up on my iPad it's 2 000 pages long that's a really big document now will you read all of it probably not but you can see from the table of contents over here that it goes 04: to an incredible level of detail so you want to know about the ospf support in switch engine this is the section where you can read up all about it if you want to know about bgp click here and you'll see the whole section that opens up on bgp and so on and so forth so this 05: document is basically almost a manual that you're going to keep by your side as you work through these switches to extreme switching especially if you're new to this operating system called switch engine so it is comprehensive it contains a multitude of data from the 05: very simple setup all the way to the really complex configuration situations that you're going to need so this document unlike the release notes that you will read and close down this one just keep it open all the time as a piece of reference material now you can 05: access this two ways you can access this from the web client itself I personally don't like using the web client I find it just takes a little bit too long so you can

click on this this little button up here the acrobat button and that will download a copy of that user manual to 06: your computer it's about 17 Megs in size that's my recommendation let's move on to the next document just like any other switch from any other vendor we have our own language switch engine exos and it contains hundreds if not thousands of commands you're probably not going to use all of 06: these commands over the life of the product maybe 20 commands or so that you're going to need to learn and when I'm talking about commands what I'm talking is about executing the basic tasks on the command line now many Engineers prefer to use command line to manage their Hardware to manage their 06: devices there are other ways to do this as well you can do this from a GUI and we will talk about the management of these devices from gui's later on on these episodes but if you wanted to run commands like for example create a VLAN or create a user this is the command 07: line reference that gives you all of that and you can see it's listed alphabetically hundreds of commands tells you what this command is about you get a short explanation of all the different switches you get an example you get a couple of examples often of the usage of this command in a real 07: world situation so these are really great again this is not going to be a quick document that you open and close just keep it in the background keep it on hand because when you need it this is the document where you find everything you need to do to manage one of these 07: switches from the command line a lot of our switches come with different connector types some of them like rj45s are built into the switches but the ones that you see mostly on the right are for things like uplinks and for stacking stacking the switches together they 07: would require different types of cables and connectors most of the times those are just filled in with blanks and when you purchase a switch you would make the decision as to which type of connector you want to use there's a bewildering array how do you make the right decision 08: this single mode multi-mode fiber this fiber that takes you from you know one meter all the way to 40 kilometers how do you make the choice we have a page for that and I found the shortcut really easy it's Optics.extremenetworks.com and when you get there this is the page

or Fiber connectors or anything of that sort everything we've looked at until now in documentation has been about the operating system about switch engine exos right the command line the user guide Etc but now you've made a decision and you've bought yourself a 5420. well how 11: do you do the very Basics are there any videos that can help you yes they are let's go back to that web page that we spoke about earlier documentation.extremnetworks.com previously we clicked on software and we chose switch engine now we're going to click on hardware and we're going to go 11: here to routing and switching and we're going to look for the 5420 we click on that and this is what you are presented with it's there to help the user get started get off the ground there's a couple of videos there that can will get you started with basic tasks so let's 11: take a little bit of a look at what all of these options are and how they will help you the first one is about migrating ethernet routing to Universal fabric engine so this is what we've spoken about previously on universal Hardware you have it you've bought it as 12: switch engine for example and now you want to change it to fabric this is the document that's going to help you with it the next document that's available up here or is actually a video and that is a 5420 series unboxing probably not something that you need to do not that 12: you've already unboxed it but it's there and it's available for you the next one is a hardware installation guide in this case for the 5420 for example where do I plug the power what if I have redundant power supplies or redundant fans Etc this is the guide that you need the next 12: one up is the 5420 series quick reference it could be any of switches that you choose but just quick reference guide this is what it does in a few pages not 2 000 Pages like we saw in exos user guide this one is quite an important one because if you buy Universal switches remember we said when 12: you booted up you have the ability to boot it up into switch engine or to boot it up into fabric this document over here will show you how to select which operating system you want to run on your switch this one is a video and it shows you how you would onboard a switch or 13:

any device into extreme Cloud IQ short simple to the point next one is another video and this one shows you how to do do something that we've already spoken about this is how to select the network operating system Fabric or switch engine using the command line the CLI for 13: Network administrators who love the command line this video is going to show you how to select the network operating system Fabric or switch engine via your preferred tool there are many ways to onboard this device you can onboard it into extreme Cloud IQ you can onboard it 13: using extreme Management Center this video will take you through the letter of those onboarding using extreme Management Center and finally if you do use extreme Cloud IQ then this video is going to show you how to onboard your device using extreme Cloud IQ or alternatively CLI as well so in summary 14: seven tools to help you to get from the unboxing process to the onboarding process in extreme Cloud IQ or into fabric wherever your choice of operating system takes you [Music] 14: a community which you can find on you guessed it Community Dot extremenetrix.com and it's a really fantastic place you have to register and you would do that on the top right of extremeneetrics.com webpage 14: if you already have an account you just log in otherwise just go in and register it's free of charge and at the community you will find a community of fans a community of people who love extreme products who know extreme products really well and if you have a question 15: that you haven't been able to find the answer to in your documentation for example you can go there and chances are that somebody has already asked the question once twice or some questions hundreds of times so use the search feature within Community to go and search for what you want 15: you've got an ability to filter by product etc etc so there's an enormous amount of activity on there people really are active it's not like you ask a question and no one answers for six weeks it's not like that it's a very active community and let me say a very 15: knowledgeable Community as well there's member resources on there where you can go and look at product announcements the latest product

to be the place that you're going to go to if you want to certify on this welcome series on Extreme switching you'd go to the dojo and go and take the exam over there so it's our platform for exams it's our platform for knowledge that's where you would go you have to 18: create an account on extremenetworks.com but it's free so feel free to use these resources I know that we've covered a lot of information in this episode regarding documentation or help with your switch it is vast but it is tailored for different things at different times of your life cycle with 19: the products that we own from the user guides from the reference guides from how to onboard videos there really is a wealth of knowledge available to you when you buy one of our products Gtech has a world-class reputation as being a fantastic resource for people to speak 19: to somebody to log a ticket and get someone active on that so make use of them all of this material I've told you about is free just go sign up have an account it's there it's for you to help you to get the best out of the 20: Security 20: let's talk about security Integrated Security Now proper security is an end- to-end approach it includes Hardware of course because that's what we're talking about but also the humans that use that Hardware they are equally important to maintain a secure network and for that they need to be educated 20: but for their part Network administrators they need to make sure that every single device Hardware device under their control is as secure as possible and at extreme we use an open standards-based approach to allow network access control net on all Edge ports of a network by using 21: authentication now this means users and devices can move or roam seamlessly across the net in a completely secure manner not only does extreme exos or switch engine Network login Provide support for simultaneous authentication methods but it also supports multiple 21: concurrent authentication technique such as IEEE 802.1x mac-based authentication and web-based Method it even allows for multiple user authentication which means that multiple users and devices can be

connected to the same physical Port running a VLAN that's powerful role- based policy when used in 21: conjunction with a tool that we sell called Extreme control will allow a network administrator to Define distinct roles and policies or profiles that represent standard types of users that you'd find in different Industries think maybe the educational sector or normal 22: Enterprise business right you're going to have roles like administrator teacher guest for example and all of those roles can be assigned to individual users and you can even create your own Pro profiles your own roles and those profiles then apply to users as they 22: move or roam across your entire network again on a wired or a wireless network let's talk about Mac security so this is the ability to lock down a port to a specific Mac address or amount of addresses in practice you could use it to lock down a port to the main office 22: printer for example so that no one could unplug a network cable from it and plug in another laptop or whatever it might be think of the hospitality industry for example where somebody could unplug the ethernet cable from the back of a television and plug it into some sort of 23: a sniffing device to be able to build knowledge of a network if Mac security was enabled on that Port it would essentially become a dead port and ignore all of the traffic IP security framework allows for the protection of critical infrastructure critical services for example like DHCP and DNS 23: and host computers from spoofing and man in the middle attack it also protects the network from statically configured and or spoofed IP addresses by building an externally trusted database of Mac IP and Port bindings providing the traffic source with a specific address for 23: immediate defense so what does all of this stuff actually mean well if you have a user on a Network that has the ability and the knowledge to be able to change a MAC address of a machine then this trusted database that I've mentioned it has already built up an ID for that machine and going in and 24: overwriting the MAC address will trigger the defense mechanism to stop that and block that machine from further access into the network a denial of service attack launched against a switch would have the purpose of taking that switch out of commission knocking that part of

to an extreme switch and plugging in a cable and managing from that side so in the next section we're 01: going to be going through the different options available to you as a network administrator to manage your network first management system we're going to be talking about is one that's actually built into the switch operating system into the exos switch engine and 02: that is called Chalet it's a browser based approach and you don't really need any connectivity to the outside world to be able to manage that switch so there's no connectivity to the internet or anything that is required additional software it's all built into there it is 02: popular it is mostly popular with really small setups you can quickly log in do what you need to do and you're out the system again it's not the most comprehensive of course if you wanted to do lots of switches you can't do that so it has its limitations but it's a tool 02: that we have to be able to do this on screen you're going to see a couple of screenshots of what this tool actually looks like and you can see like most other tools it's just a graphic tool with a lot of options for adjustment for changes Etc whereas the previous 02: management option Chalet manages a single switch when you want to manage many switches the tool of choice is Extreme Cloud IQ site engine why do we say it's the tool of choice because it really is a platform that can manage crossplatform devices we're not talking 03: here just about extreme switches and extreme access points it can manage all network devices from all different vendor s it doesn't matter where you have or what devices you have from which vendor extreme Cloud IQ site engine can manage all of that and it can manage it 03: in many different ways for example it can manage it on Prem if the requirements in your company or organization that is that management needs to be done without any connectivity to the internet it can fit in that it can also of course fit into a Cloud solution so it offers a lot of 03: variety but the feature that sells it the most to our customers is the end to end visibility of your network one single pane of glas s from one place you can see and manage your entire network when we say manage it's using SNMP uh simple Network management protocol version 3 because that's the most secure

the most robust version that Network Tools should be using is it possible to use version two and version one if you have older devices yes of course it is possible to to use those devices uh as well it will talk to them if it needs to 04: talk to them there might even be scenarios where when you do a scan of your network it won't automatically pick up device while site engine will allow you to go in and manually add a device into this management platform it's a great tool you would need to license each device that you manage under extreme Cloud IQ but that one feature the ability to manage crossplatform devices from one pane of glass that for an administrator saves you time and time is money now this is a cloud managed Network management system that's a lot 05: of words but basically what it means is you are able to manage your entire extreme networks infrastructure from the cloud on top of this you have a couple of distinct features that make it a really attractive proposition for management the first of those is digital 05: twins digital twins currently allows you to create a digital copy of your existing switch infrastructure that will then allow you to manipulate the system and think what if I rearranged a network my switches in a different way you can test them you can create configuration ations from 06: them and when you're happy with whatever has been done you can push that into your live system so think of it as a testing bed for your current infrastructure the second is the AIML uh artificial intelligence machine learning from all the data points from the 06: metadata that's pulled off the switches we can notify you when there are anomalies when the system detects anomalies on your infrastructure and we can tell you about those before you even have any idea that something is going wrong that is a great tool that's going 06: to help network administrators handle the sheer amount of volume that networks are going to see as we go on the best part of all of this is if you join extreme Cloud IQ and extreme Cloud IQ site engine together because what that does for you then is it allows you from that single 07: pane of glass to get the full benefits of AI ml digital twin as well as linking you to all your external devic es uh network devices that you have in your infrastructure and again from one single pane of glass end to end management so why just talk about it why don't we 07:

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