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speak with charity sister were.surrounded.[Music].maybe it's just me.[Music].everyone it's David bumble coming to you.from South Africa where I'm enjoying a.lot of good sunshine escaping the cold.of England I'm gonna call again with.Hank Preston and he's now in Ireland.hopefully the weather's okay there Hank.it is it's actually here in Ireland.meeting with some of our sandbox.engineering team I recently changed.roles with indefinite to focus in on our.sandbox platform and bring Network.automation and program ability and that.DevOps and all of these topics I talked.about from a theory perspective to our.actual sandbox platform and so I'm here.for a few days meeting with some of our.engineering team kind of doing some.brainstorming planning for the future.and we have lucked out the sun's been.shining it's brisk but it's it's much.nicer than back home in Ohio in the.States so that's great so Hank we when.we were talking about this call we.decided to talk about viral and you've.told me that viral is very different.perhaps to what it was a few years ago.and there are a lot of misconceptions.about Cisco viral I've had the same.thing with gns3 I'm a very big genus 3.user but hopefully in this call you're.going to show me the power of viral and.why the misconceptions about you know.the limitations of viral are you correct.yeah absolutely I think that there's a.lot of a lot of stuff that I'm hoping to.go through and in to be fair right I've.been using viral since I think it first.came out and in some of the early days.it certainly had some of its challenges.I think like any new platform has but.over the the several years since it's.been out there's been many improvements.and and the product team continues to.add new features I've actually had a.chance to look at some of the the.upcoming releases that are due out over.the next quarter two quarters and I'm.really encouraged about what's coming.but what I want to what I want to show.today is actually just current state how.I use viral as a network programmability.and net DevOps engineer and some of the.pieces and the ways that it works into.my workflow and we can tackle some of.those myths.comments and things can as we go through.so as always David I'll encourage you to.keep me honest ask the hard questions I.like anything I don't think anything.products perfect but I think viral has.gotten a bit of a bad rap recently and.it doesn't quit deserve it I don't think.yeah I mean the comments that I see and.I'm sure you've had many different types.of comments is that it's impossible to.set up very difficult there's an.integration between a GUI that you have.to install on your computer and there's.a VM just sounds really overly complex.but from what you've told me that's.actually incorrect yes parts of those.are there so we're actually we're not.going to do the installation piece the.installation has gotten easier you can.you can download the bits you can get.all those one as they go through I'm.actually going to start out by saying it.as is typical right will pitch a.definite sandbox and so I'm using for.this demonstration one of our dev nets.and boxes and it's the one that I'm.using today is our open nx-os with nexus.9 kv that happens to run on viral so.prior to our call starting up I did a.reservation so we can see I currently.got an active reservation in the corner.and what this reservation gives me is I.don't have to do the installation I.don't have to have find a server to host.it or host it locally on my laptop it's.hosted in one of our say boxes and in.fact this one happens to be hosted in.our Galway sandbox which is here in.Ireland or a mat and so once I reserve.it we can see what the sandbox gives me.is it gives me my viral servers 10 10 20.160 that'll be my viral server it gives.me a VM maestro instance which is a.Windows workstation which is where we've.installed and you can run that that GUI.for viral but I think most people are.familiar with if you played with it but.in fact we probably won't use that at.all during today's call because that's.one of the pieces that I think most.people may not be aware of is that viral.offers a full web interface that you can.use to manage everything you don't have.to use or install that that kind of.thick Windows client on it or I guess.there's a there's Mac clients as well.I'm in the sandbox there's also a dev.box which is something we typically put.into a lot of our dev nets and boxes.it's a it's usually a linux server.that's just loaded up with kind of.Python and git and.and other to lean you might want to make.it easier we're not gonna use that as.well but it just happens to be in the.sandbox and like all of our reservable.Sam boxes once it's done I'm prompted.and given access to all of the.connection information so down here at.the bottom it tells me what's the the.VPN address the username and password to.connect to the VPN and so I've already.VPN din and I've connected up on that so.any questions so far is that all make.sense David yeah that's great I mean.it's interesting that you're using cisco.viral indefinite but it makes a lot of.sense because viral is this virtualized.environment that runs all these virtual.images and Hank I don't want to how you.said I want to steal your thunder but.I'm hoping at some point you're gonna.tell me that special thing we spoke.about earlier about the resources.available in dev net for people to use.yes so and I will spell it out right.here - right so I'm using one of our.dividend Sam boxes this one's available.for anybody to use as well we've.actually got two Sam boxes that use.viral this one I grabbed because it will.spin zup but it starts out by spinning.up a nexus topology you can go which is.actually what it's primarily there for.but frankly I encourage a lot of people.to grab this one and just use it for any.viral testing so what I've actually.already done is turned off or shut down.the viral topology that starts out.because I'm gonna use it as just an.basic viral server which is something.again anybody can do this ones it's a.what I would call our smaller virus.hosted server it's would support up to.six different Cisco devices with a.mixture of non Cisco devices but if I.come over here in our catalog we can.check out our sandbox labs and if I just.search for viral our other viral sandbox.actually pops up in here and it's called.our multi iOS Cisco testing apps network.and it's one runs again on viral and.this is a bigger beefier we actually.internally kind of affectionately call.it the mega viral sandbox because it's.got a ton of capacity behind it so it's.got a couple 100 Meg's of RAM it's got.several CPUs and it's licensed for lots.of devices I don't want to coach a.number because I can't remember exactly.what it is but it's at least.I think a dozen different devices Cisco.devices and then however many servers.and other things you want you might want.to load on it but you can reserve this.one as well and what's interesting about.this one is we've kind of pre-populated.it with a handful of different.topologies you might be interested in.and so we can see here under viral.simulation I can drop the list down and.we can see you can you can reserve it.with no simulation which means it'll.start out empty you can load up whatever.you want or we've got a kind of a basic.eight node data center topology to.iowa's routers a nine router mesh or an.extranet that's kind of made up of XR.and XE and a bunch of different types of.devices and zapala G so you get there's.some choices here or again oftentimes I.find myself just going none so that I.can use it for whatever I'm after at.that point so holding them in a tank.you've got to explain this to me so are.you saying that Cisco have a lab.indefinite and that anyone can use and.they can just spin up many many viral.devices for free so that so our sandbox.is it's available to everybody so.anybody can login become a definite.member reserve any of our sandbox --is.one of our Sam boxes is a viral sandbox.and then you can use that to spin up and.use it like you would any other viral.server it's you can spin up as many on.that viral sandbox you could use it for.for the time spin up a simulation tear.it down spin up a couple of simulations.if you need a couple of different ones.and use it.the reason I'm phrasing it that way is.are the way our sandbox is go when you.are a definite member you can have one.sandbox reserved at a time so you.couldn't reserve like five instances of.this sandbox because again it's our.capacity so but we do give everybody one.one sandbox at any point in time they.can go ahead and reserve it and either.use this for whatever testing you want.to cross or when you're done with this.one reserve one of our other sand boxes.yes I just want to make that clear so in.other words I could if I'm studying for.CCNA on studying for CCM PCC ie whatever.I could reserve one of these or the.sandbox next weekend and then I could.step well for a period of time and then.I could study for whatever certification.exam I'm doing or for development which.is going to be the focus of our call.for free yeah absolutely and and on that.that's what they're there for our.sandboxes are used again our primary use.cases for folks that are trying to do.programmability indefinite and api's but.there's nothing that prevents you from.grabbing it to use it for anything else.and frankly we're encouraging the folks.go it all of our Sam boxes include code.samples and things so if you want to.grab it maybe you're doing a bit of CCNA.studying while you're in there you want.to check out how to use Netcom for how.to experiment with some of the api is or.work with python you'll already have the.resources available and we can point you.to different learning labs and things.that are kind of built and you can take.advantage of the resources again hundred.percent free or they come up each one of.them will default to a certain amount of.time but I can click in here and say hey.I want this for 3-4 days on that side.our sandbox is well like I said one.simultaneous imal one sandbox at a time.and our default duration extension is.for about five I think it's five or six.days if you're working on a project and.you need it longer than that you can't.open up the ticket with our sandbox.support and they can extend it out but.you can always just once the five days.are over.tear it down and redo one on that side.and I always encourage folks especially.in the programmability space to work.with github and store your code files.and all your your different pieces so it.should be pretty easy to kind of start.back up grab a new sandbox if you're.gonna take a week off just you don't.have to let it sit there idle for the.week you're not using it just let it.tear down grab a new one when you're.ready and tie it back in and get ready.to go yeah Hank I'm help I'm hogging the.call a bit but I think this is an.amazing amazing resource so basically if.I understand it right and I don't want.to repeat it too many times but.basically anyone can have access to this.viral system running in Devon it so it's.basically running in the cloud it's a.free resource if people don't have.enough resources on their laptop to run.Cisco viral locally or they have other.issues all they need to do is connect to.Devon it and there's viral ready to use.I mean that to me is an amazing resource.absolutely and again it is.hundred percent free and that's the the.big piece that I always want to tell and.please what we can we can repeat it as.often as necessary I hope everybody.he'll go out sign up for definite take.advantage of some of the resources and.use this that's out there because they.are fantastic and even as as its systems.get easier to install there's nothing.easier than somebody else doing it for.you which is why I actually have an.installed viral in a long time for the.last couple of years I've just used the.hosted ones that we offer here's yeah.okay so I'll wrap it up that's an.amazing resource so everyone if you want.to make use of this free viral system.sign up to dev net three you get free.access to use viral you can use the.system and Hank just one more thing so.that I understand right if we reserved.this I can add many viral devices as if.I'm running viral locally yes so once.you reserve it and connect to it it's as.if you're running it locally.you'll have to VPN in and then you get.access the number of devices you can add.to your topology will depend on two main.factors one of them is the license as I.mentioned we've got two two sandboxes.this one is licensed I think for about a.dozen maybe fifteen devices the one I'm.using today is our smaller one and it's.license I believe for six simultaneous.Cisco devices but you can load up in.addition to the six let's say six nexus.9 KS you could load up four or five.servers to connect to them to build some.topology once you have the viral system.if you've got an image for an on Cisco.device and so this is one of the myths.that we can we can hit right now to is.viral supports any simulation device.that provides a virtual image KBM image.and so if you're working with.multi-vendor and you want to load up a.Juniper switch you just need there KVM.image and you could load that into the.system and then you could add that into.the topology same thing with anything.that you can find access to is you can.load any of those up on that side yeah.that's that's a really good point.because I've been a firm supporter and.believed in gin is 3 because it's.multi-vendor.open source multi-vendor and I've always.thought that viral is fantastic but it's.only good enough.scare devices but you telling me and.everyone else that viral can support any.device as long as it runs KBM image.correct yeah now our simulations.obviously are our sandbox lab has come.preloaded with the cisco platforms that.are there and so here i'm on the web.interface and we're going to talk a bit.more about this in a bit but we can see.it's preloaded with a SAV CSR iOS XR.nx-os.and in addition we can see there's a.core OS image in the middle there's a.server image down here that's I think a.boon to but you can add any KVM style.image up here it's again virals just.it's a simulation system so if you bring.your own image you can you can load.those up and take advantage of them.across your simulations it's certainly.not Cisco only and in fact the at Cisco.when we we download it for internal lab.use or different pieces we actually.publish some of the the different images.that are supported as well to go through.because it's used across the board for.multi vendor testing and one of the.common use cases I tell folks when we.start to move beyond just studying for.the CCNA or CCNP is include application.servers so build up a network and to.test out how your network changes will.go and then load up a Windows a web.server load up your application server.and you can include those in your.topologies what we usually again it's.got the linux images here but you can.even run Windows servers inside of KBM.images so that you could simulate actual.traffic loads and so when you build your.network you configure it appropriately.now you can actually test to see if the.applications are working as they're.supposed to that's amazing I mean it's.whenever I talk to you I learn something.and well I learned a lot I mean this is.this is great because I just look at.your list there you've got a SAV right.at the top ASA's are a nightmare for a.lot of guys to get working on other.platforms and I mean that comes in comes.with Viral and you can build a sa.topologies if you're studying for CCNA.security or whatever using viral and I.can access this on the dev net hosted.solution as well so I mean the more the.more I talk to you the more I think this.is fantastic and the more excited I get.so let me.pankin you continue with your demo yeah.exactly and the one thing I'll point out.here people are curious why are some of.these in red it's because the the red.ones you'll see their older versions and.so I think when we first loaded this one.up it defaulted to the sixteen six image.for CSR and then we updated it to the.sixteen eight image but the the older.ones are there and when you're building.a topology kind of an advanced use case.and as you can go in and say hey by.default it's gonna want the latest.version of the platform or whatever it's.been marked as default but you could go.in and select an older version as well.which is why you see the CSR is red and.this nx-os is red and the server's red.it's because we've got newer versions.that are there but let's talk about.simulations and so one of the the big.complaints or comments that I get from a.lot of folks is they just don't like.loading up via maestro either on their.laptop or having to have some other.system that's there and I agree it's a.fine solution but frankly I'd much.rather deal with a web interface that.goes through and so I'm just on UWM I.honestly don't remember what those.letters stand for but it's the web.interface for interacting with Viral as.just a general user and so I can see I'm.on my my simulations here and I'm gonna.go ahead and launch a new simulation.well we'll start this whole simulation.rig from the web piece that's there so.Hank just to stop you there.what you basically are doing is you've.got the viral VM in this case that's.hosted on dev net and all you're doing.is you're connecting to it with a web.browser you haven't installed any.software on your laptop kind of thing.correct yep I just did the web page that.was there and so I'm gonna go so when I.hit that I hit the launch simulation and.so it comes up with the launch piece and.so what's the source of the the.simulation is the dot viral file and so.under the hood whenever you're working.with viral the topology file or the.topology you're working with is it's.usually often called the dot viral file.or the topology viral file it's an XML.file that describes what's there and one.of the things we'll kind of talk about.as we go through is I always encourage.folks make sure you grab those files and.include them in your code repos or.include them with what we you're working.on because now you can you basically.have your topology your simulation to go.you can use it on any viral system as.long as you've got the file but we're.gonna create a new one from scratch you.can give it a name we'll just.all this the the demo the demo one.that's there and then you can see launch.what I clicked the second ago was this.editor button to load up the web editor.and so that opened in a new tab I'm just.flipping between tabs here and so this.is the editor to build out what I want.my simulation to look like and so I can.come through here and say okay you can.see the nodes that are on the side and.I'm gonna keep them a fairly lightweight.one just so we're not sitting around.waiting for a ton of machines to boot up.so I'm gonna say we're gonna add this.iOS v1 we'll add a couple of those and.let's say we'll add a else we'll add a.layer to iOS device so just a little.kind of a triangle two routers a switch.that are there so this isn't terribly.impressive obviously connecting devices.is pretty simple.I could add links individually or I can.just hit the auto connect button that's.here it'll just create the triangle for.me so I've got my link that's ready to.go mix that's this again shouldn't seem.too terribly surprising it's not.intended to but kind of stepping us.through showing this what's there before.I keep going are there any questions.David I just think it's great and just.to reiterate this you've got a web.browser pointing to a viral VM and.you're holding the topology without a VM.my stro the maestro is the sort of GUI.application that you could use we.install it locally all you're doing is.connecting to the VM with your browser.and you holding this topology great.that's great and that's the first pieces.a lot of people think they need that.thick client and you don't yeah frankly.I barely use it ever because I can do.everything through the web and some of.the other tools that we're going to talk.about and so the other thing I will go.through down here is just remember you.can add in servers and as I mentioned I.always encourage folks if you're.building this to test out throw some.servers put a webserver in there put a.host so you can actually test to see if.your topologies going so you can you.could pick any of these and add it in as.well just a dumb question Hank before.you go any further what do you our role.do I point to you so I mean is it just.the IP address of the viral server or.the VM basically yep yep so if I come up.here you'll see the editor is running on.a different port as it goes through but.when I first started let me see if I can.show it over here.ya see I'm just at 10 10 21 60 which is.the IP address of the viral server from.the sandbox correct and then you would.log in so the d followers our sandbox.has used the default viral passwords.which is just guests and guests so user.name guest password guest and that's all.I did in advance so I'm gonna so I.created my topology here three devices I.cooked finish and so now I can go ahead.and tweak it if I need to with what's.there so if I select for example one of.these devices I can come in and look at.the properties and I could assign.different IP addresses to kind of give.it explicit management addresses I can.tell it what I want to do from an.internal gateway protocol so routing.protocols I could turn on kind of.customized OSPF settings or ibgp.settings different types of pieces you.don't have to set any of these because.one of the things that's nice about.viral is it's got this feature built in.called Auto net kit and so if you don't.customize these settings we'll run it in.a second it'll actually go through and.say okay well you built a topology let's.let's give it some baseline.configuration and so auto net kit looks.at the way that you physically cable it.and then just kind of add some IP.addresses turns out a couple of routing.protocols just so when it starts up it's.ready to go but you can override some of.the defaults that it gives by just.adding different details that are in.here that auto net kick capability is.one of the things that I think is really.unique inside a viral and some people.don't recognize that it's there and you.think well I'll spin up the topology and.then I'll have to spend 30 40 minutes.kind of putting IP addresses on every.physical interface and and just doing a.baseline OSPF for bgp config but if you.just want to if you're trying to get it.to apology up in some traffic definitely.take advantage of this Auto Net kick.because it'll it'll does all those for.us but like for example here's the first.router I can click on the second one.that's here I could customize it I'm.gonna let it take the defaults and just.say run auto net kit and so it's running.auto net kit in the background we can.see it tells me it's completed and so.now if I click on this config tab it'll.actually show me so once we once our net.kit is run and click.the device this config tab is over here.on the side will show me the.configuration that was generated and it.says it right up here iOS config.generated about in that kit and I can.scroll through and see what was done so.we can see I've always been a fan of.using out-of-band management networks.and so it's even on these older devices.it goes ahead and creates me a.management interface via RF so it can.throw those in there I could look at.some of just the baseline config that.gets done and then it gets down into.some of the interfaces so we can see it.created loopback zero for me this will.get used for kind of router IDs all.those pieces inside a router protocol or.routing protocols we can see that first.interface is the one that kind of.automatically gets identified to be the.management interface and so it's been.labeled it's out of the RF and then we.can see the other interface 0 1 and 0 2.0 1 has been cabled up to go to the.layer 2 switch and it's got an IP.address on it.Gigabit 0 to go straight to the router.it's got an IP address on it again all.those IPs are kind of just auto net kick.grab some default ones to go through and.use but you can override any of those.inside of the settings and then OSPF is.turned on bgp is turned on just some.basic stuff is all been done now I don't.have to live with this I could go in and.tweak any of these pieces that I wanted.to on any of these router configs to.adjust it for my own baseline.configuration if it was needed so if I.wanted to rename the hostname for an.example although you can do that with.the properties of the device as well so.you don't have to do it manually but.again so now I have a baseline configure.it's all ready to go and I can come.through here and say ok I want to go.ahead and sink that off to UWM so it.says here UWM synced syncing to UWM what.this editing tool did is it created that.topology viral file that dot viral file.and so now if I flip back over here to.UWM it says using that viral file from.topology editor you can see it's been.selected there and now I'm ready just to.go ahead and click the launch button and.so this is going to start my simulation.based on that topology I just built and.it's going to bring us over here and.we'll kind of be able to see it as it.boots up here inside of the web.interface well that's going this is a.decent time for questions so and so we.will be waiting for a couple of VMS to.pooped what what you got for me to do.yes I mean this is basically for lack of.a better word is a scripting engine that.allows you to pre build a topology so.rather than I having to go and manually.configure IP addresses and routing.protocols and all the race this just.makes it dead simple to get a base.configures that right yeah that's what.Auto net kit does and it's it's one of.those things that it's it's I saw it.when I first used viral and I was like.yeah that's interesting but the more.that I've gone through and kind of seen.what it does and some of the pieces and.the convenience it offers it's really.handy and you can override any of the.settings that are there any of the the.subnets any of the assumptions that are.made and it's a piece that's just kind.of always part of it been part of viral.to give those types of capabilities and.again it's it's based on configuration.it gives me a topology to start with I.know that whenever I'm building a lab.out it might be fun but I think the.fourth or fifth time I have to go ahead.and put IP addresses on every single.interface between my devices it gets.kind of boring to redo the same thing.over and over again so yes I mean that's.one big advantages guys who know how to.do all the basic stuff it just automated.using this tool so that they can save.time getting to what they actually want.to do which could be Network automation.Python whatever but I see another piece.to this what's also nice for someone.who's very new to Cisco like a CCNA e.candidate what's nice about this is they.can say okay create a BGP.neighbor relationship in this autonomous.system and it creates the config so you.you know you've got something to learn.from so that's also really nice yeah.yeah absolutely having and there's been.a few protocols and things even over.time where I was like wow that's a.different way to configure it or I.wouldn't have done it that way um I.started doing a lot of the routing.pieces way the way before some of the.named mode configs and and some of the.address family pieces and so I've.actually learned how to translate stuff.over to some of those newer modes just.by looking at some of these simple.configs that are built yeah I mean it.through VRS in there so it had like a.management vrf that basically keeps the.management side separated from your your.lab topology type thing as I right yeah.yeah and so if you get it like a.you were a newer model switch whether.they're catalyst or Nexus which most of.them these days have an out-of-band.management port it's usually it's yellow.it's plugged in the back it's labeled.management the default configs on like a.Nexus device and I think the Newark iOS.images kind of start out with a.management vrf that's there but I.remember back in the day a lot of the.like the when we first started seeing.management ports unlike a 37 50 X and.some of those they didn't necessarily.kind of default to a management vrf and.so I I walked into several folks that.mistakingly started adding extra layer.three default routes into their global.routing table because they were using.these management ports and then putting.a route on it and then stuff kind of got.weird and so I always recommend folks.I'm a huge fan of having a management.network something separate from where.your product applications run and then.the next step is make sure you're.pulling that even on your edge access.which is put put a do some sort of.isolation do a management vrf do.something so that you you don't risk.having those routes or those things kind.of get into a table you're not you're.not expecting that's great mm-hmm all.right so while we've been chatting our.simulation has started so we can see.here in the table I'm active there.reachable shows me that management IP.addresses that kind of were assigned.here and then we can see some external.connection information that's here and.so there's there's the ability to kind.of connect in for console access and.management access to go through and.there's different ways to kind of tackle.these but the first one I want to look.at is is this interesting thing up at.the top called live visualization so if.I click on this one it's going to open.me up another tab which is gonna look.similar to that topology editor we were.looking at and if I'm exploring its.apology trying to figure out what's.going on.there we go is now active we can see.things are kind of popping up and.getting connected so I've now kind of.live connected this web tab is kind of.linked up to the topology and so if I.click on one of these devices we can see.I can tell MIT into the serial port from.for this device so if I click on this.it'll actually open up another web tab.and it's going to connect me to the.serial port on this device and so now.right within the web interface I am on.the device and I can configure it and go.through so again I'm.the web novia maestro didn't have to do.anything on that and i can get connected.to this and i can look at show IP.interface brief and i can see the advice.again so i'm connected directly to that.device that's there I could connect to.any of the devices so again any other.serial ports which would give us kind of.console access for all of these devices.I get those pieces that are there and.then if I'm working through this actions.menu gives me all sorts of interesting.things that I can do across my topology.kind of add mass and so if I want I'm.interested in the OSPF information I can.just say collect OSPF and so under the.hood viral is just running some.collection commands off to the device.and then in this log it kind of shows me.all of the relevant things for OSPF and.so rather than connecting in this case.there's only three devices and two of.them are the only ones that are doing.routing from an OSPF perspective but if.I had a large topology and I wanted to.see like what's the output of show IP.ospf neighbor and interface brief and.all of those across all of them viral.gives me the ability pushes them all out.and then kind of gathers all that.information here in this log for me so I.can snag them I can clear the log out.when I'm done after I've captured what I.needed and I could run something else I.could say go collect the ARP statements.across all of these and show me what's.there and so again a nice little kind of.handy piece that's built right into the.viral tool all web-based I don't have to.do anything and I can just kind of run.these out I can do um collect the.running config interface tables I can.pull the configurations out spanning.tree details again just built into the.tool to make it convenient to kind of.learn the current state of what's going.on on that yeah I mean that's great.because again I see two things here.number one I mean you're using like an.automation tool type of thing to to.bring back a lot of information that.makes it easy to see what's going on but.it also helps someone who's again new to.Cisco to know which commands to type.yeah it's like all the OSPF commands.some guys might not know what commands.to use and this just makes it really.easy for you so that's great but Hank I.want to ask you something really simple.can you go back to the console of that.let's switch that router sorry serial.port.it started open over here so can you top.show line in there yes so I just wanted.to make this clear because in the viral.terminology they talking about serial.ports serial zero zero one and that.might be confused with their traditional.serial port so that what we actually.doing has we connected to the console.port aren't we correct zero one serial.one would be the aux port other devices.you can kind of see if you look look in.there and then serial zero is the.console you can tell it into the.management ports the kind of the.traditional vty lines as well but in.this case the connecting to serial zero.that's a console port yeah so we can see.the console port is in use stage just.like you would on a traditional router.so that's great yeah thanks I just.wanted to confirm that oh no absolute.great question so we got those and so.that's the live visualization editor and.then over here on the tab and then if.you wanted to connect directly into the.pieces as well the their their porch you.can come through to connect and so some.of these other external connections so.if I just click on if I want to open.that up.oh wow and so what that did is this this.URL of telnet colon slash slash 10 10 20.the telnet :.instead of like HTTP is saying hey I.want to open up a link to its helmet app.and then if you've got a reference to.what application to use to open up.telnet on your local machine and on my.case it's a Mac and my Mac is gonna try.to open that up in a terminal out it.goes ahead and actually will launch it.and it looks like I wasn't actually set.up my pseudo TTY isn't set up to do that.but those links will sometimes work for.those depending on your underlying.platform on those pieces but that's what.these external are so if you had an.application set up you could click these.to launch weather rather than in a web.though over here we can see these under.options I can go ahead and just click it.I'm already connected to high OS b1 so I.won't do that one but here the console 0.and that's gonna be the console port on.iOS b2 if I click on that this will give.me that same spot I was just asked so I.don't have to go through that live.visualization page to get to them I can.do it right from the simulations to you.and just get back in.and again just as a reminder here under.the options console zero yeah I mean.that's brilliant so I could use terror.term party whatever my favorite terminal.emulation program is to access these.viral console devices just by tell.netting to that IP address and port.number yeah I'm actually in a very few.minutes we really gonna jump over and.I'm gonna show you how I would recommend.people when you want to get out of the.web interface and start using like.terminals and pieces we've got something.even better that I think you might like.on that side oh right but from the web.interface kind of sticking in this kind.of gooey experience we've been again.console zero one or management so I can.click the M with the piece that's there.as well these ones are grabbing it.normally those open up oh you know what.it is these management IP addresses are.not routable so this these addresses.here this 10 255 those are internal to.this topology the way it was built up so.I wouldn't be able to tell it directly.the B's addresses this 10 1021 is um if.these were routable addresses in there.that these buttons would open up a tab.to tell MIT directly into those devices.but just the way that this topology was.built these aren't using what would we.consider kind of a routable management.inside the network plane that's there.alright so I mean Hank just to reiterate.cuz I'm a bit slow at times again this.is just using your web browser it's.using a viral VM in this case it's.hosted indefinite but the same thing.applies if I was running viral locally.on my ESXi server or my laptop whatever.just use a browser to access all of this.stuff yeah again if someone does have.viral of their own just go to the web.that go to the the web interface for it.log in and all of these pieces are there.we're not going to dive into that just.based on time but again viral gives you.the ability to do traffic captures that.are there we can see the interface list.that's out there although all the link.details there's lots of other pieces.that you can jump into on that but for.now what I want to do is I'm actually.going to stop this simulation and we're.gonna look at it as I hinted at this.using the web interface is a great way.particularly if you're trying to learn.study for something and go through but.my use case for for confirm on that one.let me go back in my biggest use case.for viral these days is as part of.something that I'm doing from a network.automation for spec / perspective or.from net DevOps or trying to do config.management and learn some new tool there.I just gotta go actually confirm that I.really want to stop it stop simulation I.actually kind of appreciate that it.wanted me to confirm that I wanted to.stop it and didn't just wipe out all.that work so this gonna go ahead and.stop the simulation now I'm stopping.this mostly just for the load we're done.with it at this point but viral does.allow you if you're if you have enough.capacity from a CPU memory licensing.perspective you can have more than one.simulation going and in in fact that.large sim sandbox that we looked at.before sometimes I'll have two or three.in there showing different demos all on.one viral server it's just you need to.make sure you've got enough kind of CPU.and license for whatever you're after in.that case this particular server only is.licensed for again I think six.simultaneous Cisco devices and so I.wanted to free up those extra three that.are there alright so sue me simulations.are done before I jump into the next bit.you have a question David oh that's.great I mean it's um I think the.exciting piece shares I mean for those.people who didn't know you can get free.viral access through definite big thing.is it's multi vendor another big thing.is you don't need to install the maestro.software you can just use the web.browser those are the big things I've.learned so far yeah absolutely.alright so now we're going to talk about.how we can use viral as part of our.network automation and simulation pieces.and so what we're going to use we're.gonna drive viral through the api's that.are there and so viral since its launch.has always had API is and in fact if I.if we come over here you can find them.in the documentation you can look at the.different API eyes that are available.but what we've done is we actually built.a tool called viral utils in Python so.I'm just going to go here to PI pi.if.start familiar with a Python package.index it's it's a place where you store.things Python libraries for people to.download and so this is if you ever done.pip install net miko or pip install.requests it's installing it from pi pi.which is this the service and so we've.got a package up there called viral.utils and so we can see i'm going to go.to the actual github page because the.docs read better over there.what viral utils is is it's a CLI tool.for interacting with viral and we built.it specifically for kind of Network.automation net DevOps tile use cases and.it's modeled after another DevOps tool.called vagrant vagrant is an open source.tool from a company called Hoshi Corp.and it's a CLI wrapper for managing kind.of VM originally it was kind of software.developers VM environment so loading up.their servers managing their deployments.so that it was easy for software.developers to quickly start up and.teardown and replicate their development.environments and so what we wanted was a.similar thing for viral for network.simulations and so virally utils gives.us that same type of model and so we can.see here viral up is where we're going.to start out with with some of these.pieces and it's a command-line tool and.this will have links to all of these.things inside of the show notes but the.installation will there's different ways.to install depending on whether you're.trying to develop with it but the way.that I tell most folks is just pip.install viral utils and I've already.installed it so we'll see that it's.already satisfied and so now I've.installed the command line tool viral.and if I do viral - - health we can see.this is similar to what we saw on the in.the github documentation it shows me all.the commands that are there and so what.viral utils is doing is it's interacting.with the viral server under the hood and.in this case it's the same viral server.we were just looking at and so I can.come in here and the first thing we.might want to do it would be typically.to start up some sort of a simulation we.know we don't have any running right now.and so where do I start from what we.built in this thing called viral search.and so we've got a github repository.where we've got some sample viral.topologies and so if i just type viral.search.we can see here that we've got it looks.like about nine ten different topologies.that we can grab and so we've got a two.iOS router we've got a five router mesh.we've got a core access distribution and.so I can grab any of these and use these.as a starting point if I don't have my.own topology file but I want to.reiterate remember when we were working.in sweather VM maestro or the web.interface what we were creating was just.a topology file and you can download.those and so if you've built a lab.topology and viral you can save that.topology file off as just the topology.file and you can use those but in this.case we're gonna grab one from from.github there so I'm gonna do viral up.and say I'm gonna viral up this viral.files fiber outer mesh sorry hang just a.just a dumb question while we waiting.for that way did you install the.software is it on your Mac codes that.I'm the viral server good's a good.question so right now this is just my.Mac we're looking at the the SSH.terminal for my Mac um you could run.this on a Windows machine on a Linux.machine anywhere it's just it's a Python.package so the requirement is Python.these days I recommend everybody Python.three but it does work with Python two.as well and so it's just wherever you.happen to be working from just pip.install viral utils and I'm working.locally from my Mac and then it's gonna.connect to the viral server that again.is in the sandbox that's there we'll.talk in just a second about how viral.knows how viral utils knows how to where.that server is but yeah I'm running.locally working kind of remotely.controlling the viral server that cell.in the cloud yeah great so rather than.having what's at the VM maestro software.as a GUI this is kind of like a CLI.client that's talking to an API type.thing is that yeah that's exactly what.it is yep it is a CLI client for viral.and there's so many use cases for it.we'll we're gonna work on one here just.kind of from a terminal perspective kind.of working with manipulating managing.our simulation but you can also use this.kind of in more advanced use cases which.is what we're starting to see is is part.of kind of automated testing pipelines.for different types of configuration.strategies and so if you work in a big.prai's you're using ansible to drive.your your network configuration well you.could you could use viral utils to spin.up a network simulation that looks like.your corporate network deploy your.updated scripts test that they're all.working fine and then again using this.command line tool tear it down when.you're done and and that was the big.driver for viral utils was to provide an.easy way to hook viral in as a network.simulation and a testing platform to.provide the basis for those types of.what we're calling network configuration.pipelines a way to kind of quickly bring.up an environment run a configuration.against it test it make sure it's good.tear it back down in a way through that.that make sense yeah no that's great.that makes a lot of sense mmm cool all.right so by now we should be close to.there so now if I do a viral LS this.will show me that I have a simulation.running and kind of linked to my current.client that's there and I can do viral.nodes to take a look at what viral nodes.are the status is and so we can see in.here I've got five nodes the one I.started up again was a five router mesh.so it's just five kind of iOS V nodes.see they're all there they're active.looks like they're still not quite fully.up yet because they're not reporting.reachable status but we can see that.they'll be available via telnet and in.this case these management addresses.these ones are actually will be routable.so I could I get an SSH and telnet.directly to those good run this again.because they in a second they'll start.reporting reachable but let's talk about.interacting with these because some of.this stuff we can actually go through if.I do viral - - help once more we can see.we've got a couple of different things.in here on a point out this first one is.console I can console into a node.there's also SSH to a node and telnet to.a node and so I can go through it's a.viral console and then give it a device.and I'll just grab this one that's I can.still see here at the bottom of the line.iOS V - five so viral console iOS V -.five will try to connect me directly to.the console of that device and so again.I'm on my Mac using the viral utils tool.to jump in and so now I'm connected to.the console port the.not support for iOS 5 and I could enter.enable mode and it will do the same.thing show line we can see I am again.attached to line 0 the console port.that's there and I've done that under.the hood what viral utils is done is it.goes out and inquires hey what's the.what port on the viral server is the.console for this device currently.connected to and just let me connect to.it through telling it that's out there.and so it makes it really easy to kind.of connect out to these devices that are.there again I'm at the console port.that's here I'm when I first started the.telnet application in Linux and Mac the.way that you get out of telnet to go.through is this control bracket or this.control bracket key and so we print this.out so that we know how to get out of.the console port because I don't know.what you David but have you ever gotten.yourself stuck into a device in a mode.and not know how to get out before oh.yeah definitely so just the control key.and then the square bracket and again.that's the key stroke in the telnet.application on my Mac and then I can.just quit and so I've now disconnected.from that device do viral nodes again.there's still the the hello.hasn't finished showing they're.reachable but I bet they are I can.probably just do viral SSH into iOS V.dash 1 and so this will SSH mu directly.to and in this case these 172 addresses.are set up to be kind of routable into.the sandbox and so now you can see it's.prompting me for the password.this particular banner image kind of is.wrapping a little weird but alright so.now I've SSH tin to this device there it.goes and show line and so now we can see.I'm connected again at a VT while I'm in.this case as it goes through and so now.I don't have to necessarily know the IP.addresses the ports that these devices.are connected to I didn't have to be in.via maestro and I don't even have to be.in the web interface but I can fully.interact with any of these devices that.are out there and I could configure.these if I wanted to use CLI and fatigue.and I'm SSH to the device but I didn't.have to think about or remember all of.the things about what IP address was.automatically assigned to this device.viral nodes will.tell me what IP address was there but I.can just simply do viral SSH so.whichever one of these node names I'm.after.if the device didn't support ssh telnet.would work as well so viral telnet into.high OS v - - well let me tell that into.those devices and cisco cisco okay but.the default black credentials in viral.or cisco cisco and so now i'm on iOS -.and just to kind of as we've been doing.again now i'm again on a vty line so i'm.connected directly into it i can exit.out of there so this gives me again now.we've spun up a simulation that's there.now when I did that vibe remember I did.I started this all off with viral search.and I have these these lists so the.question might be like where are these.coming from Hank like these magic little.topology files so let's let's go find.them and just show and so Hankin another.question cuz I must have missed it is.how does it know which viral server to.connect to did I miss a step we have I.have it I haven't mentioned yet well let.me finish with an almost circle back.yeah no worries hmm so up on github so.github.com slash viral files is a github.organization that we set up specifically.for hosting sample viral topologies and.so when I ran viral surge what viral.utils is doing is just looking at this.github repo and saying oh there's.there's these ones have been created we.when I keep saying we a lot of the.development on this was done by one of.my fellow Cisco engineers Kevin Corbin.he's a super great network engineer.programmability guy and so he's done 90%.of the development here I contributed a.little bit occasionally several ideas.but that's the we that's in this you can.see there's a group of folks that have.contributed back to here but we're also.always looking for common viral files -.host for folks and so David if you or if.anybody else is watching the video has.created a viral topology file that um.that's interesting that you think would.be valuable for folks we can just you.can post them here and this github repo.and then they show up whenever anybody.does a viral search this just live goes.out and looks and then.viral up to remember the command I ran.was viral up and then I just gave it the.name of the UM the one that I wanted in.this case it's again the five router.mesh and so if I go look at five router.mesh we can see we can see there's this.topology that viral file this is the the.file that drives that and so if I look.at it we can see it's an XML file it's.just this is what when you create a.simulation inside a viral when you drag.it in that topology under the hood it's.creating this file and so this one was.probably originally created in a console.like that exported and then and then put.here but when I fire up what it actually.did is it downloaded that topology file.and so if I look I now have topology.that viral file here it pulled it down.from github for me so I have my own.version of that file that's in there and.that's what's that's what drove the.simulation and so if I were to viral.down it would shut it down but that file.would still be there so I could.immediately just viral up to turn it.back on and so again if you're you're.working off of our shared sandbox you.viral up you work on it a bit you viral.down or your sandbox reservation expires.you reserve another one you viral up.again you get the same topology back.because again we're storing our topology.our simulation information along with.some code and we can see here in a.second we're going to talk about some.ansible stuff that goes through on that.side so the next question of my answer.is how does viral fuck-me utils know to.talk to the viral server but before I.answer that one any question I'm kind of.how we're getting the topology and some.of those other pieces yeah I mean I Hank.you another question that you can answer.later is does the viral topology file.contain the configurations and the.topology so like a genus three you have.a topology file but you also have.configuration files does that file.contain everything yeah so it contains.it contains it can contain the.configurations and so remember how when.we were in the simulation we did the.auto neck hit and then we looked at the.configuration that was created yeah ins.what the to what goes in the topology.file is that config so here if I look.this is the topology file and we can see.here is the inch entry key is config.and then baked in here's is a.configuration and so if you wanted to.include some baseline configuration for.the device you could include it here in.a given it's a text file you could come.in and tweak any of this and save it and.use it.now once you've brought a simulation up.and you've started it if you connect in.and you manipulate the configuration so.you you change the OSPF config you you.configure a itrp turn-on MPLS whatever.it is any of those configuration changes.you make after you started the topology.exists on the topology in the device.they don't automatically get written.back into the topology file viral has a.feature where you can go through and you.can say I've made a bunch of.configuration changes to this topology.please like um what do they call it it's.a it's export or pull out the config.from the current running config and.update the topology file and so now you.would save those but that's an egg.that's an extra step and again I.actually like that I want to be able to.have a baseline config and then it's up.to me whether I want to update my.default starting configuration point or.not that make sense yeah I mean that's.great from a labbing point of view a lot.of guys like to have an initial lab and.then like a set of tasks and then the.final conflict so that they can verify.things so that's great from like my.point of view I could create a lab.guides and labs for others to use where.there's an initial config file config.absolutely absolutely okay so let's.answer the question is where's the magic.how does viral know what to talk to.there are a couple of ways that viral.running on your local machine in my case.my Mac know how to talk to or know what.viral server I want to talk to you um.the first one is it will ask you if you.haven't used some other method when you.go to run a command like viral excuse me.viral OS if you haven't done a step that.I'm gonna show you in just a second and.it so it doesn't know which one to go.through it would just ask you hey what.viral server do you want to talk to what.username will password and that's okay.but what I usually tell people is if you.are using if you've got a common viral.server you always go through viral utils.set up to look for a particular file.called viral RFC and we're gonna I'll.show you mine and then we'll look at the.docs and so in the local folder that's.there I mean actually I'm gonna I'm.gonna copy it over because there's a.couple of ways this goes and I don't.want to confuse people of turn so the.first place that the viral is gonna look.for is in the local folder so I'm gonna.do an LS - la it's gonna look for this.file called dot viral RC and so an RC.file we kind of modeled this after.something out of them kind of the cloud.in the OpenStack world and it's it's a.it's an environment file and so if I.look at this type of a file if we just.take a look at the contents of that file.viral RC we can see that it is simply.set up with some some just variable kind.of placements and so these first three.I've got a couple of different viral.servers I sometimes use this is one of.them but the hash symbol the number.symbol at this part says those are.commented out and so the ones that are.currently active are these at the bottom.so viral host equals 10 10 20 160 again.that's the IP address for the viral.server and definite they usually may.pass or your guests and guests and so.the simplest way and the way I tell most.folks is just include this dot viral RC.file in along with your code and that in.the directory or ad and then viral will.look for those now if you have lots of.projects that are running off of a viral.server you can also put the dot viral RC.folder file in what's called your home.directory and so on a Mac that is or on.a Linux or a Mac machine that's often.represented by the tilde and so if I do.- tilde - the tilde key and then I can.look I've got a viral that's - the graph.viral it's a hidden file that's of the.dot means so we can see here we've got.this dot viral RC file that's in my home.directory that tilde slash is your home.directory and so I if you put the file.in your home directory then no matter.where you are.any project will always be able to find.the viral server so to reiterate the way.that viral utils knows what viral server.to talk to is if it can't figure it out.based on one of these files it will ask.you or it will look first in your local.directory to see do you have a dot viral.RC file whatever directory you're.currently sitting in and then if it.can't find one there it finally goes and.looks in your home folder which again on.a Windows or a Mac or Linux machine is.represented by a tilde I think it's like.percent home percent on a Windows.machine and that would be on a Windows.machine like see users slash whatever.your username is that's your your home.folder on a Windows machine as it goes.and looks for this dot viral RC file.that goes through and at all that's in.there is just some variables what's the.host username and password for your.viral server that make sense yeah that's.great I think the important thing is.when you run it for the first time it's.gonna prompt you if it doesn't know what.it do so yeah wait wait when a prompt.she does it save that or do you just.have to create this fault no I I think.the way that it's built right now is.that we just prompt you each time and if.you get tired of typing at each time is.just create this dot viral RC file the.docs that we were looking at before up.on yeah over here is inside of the.configuration so in rating github on the.documentation it says there isn't much.to configure how to setup your viral.credentials viral RC in the working.directory so again whatever folder.you're currently in or you can set them.as environment variables as well or you.can put it in your home directory so.again it's just the details are here in.the docs and we'll make sure we've got a.link for this information in the show.notes as well that's great so that's how.it connects in on that alright so as we.are coming to the end of this there's.one last thing that I'm hoping that we.can kind of get through and so as I.mentioned.when I'm working with Viral today it's.often not because I need a network.simulation it's because I'm trying to.work with some tool maybe it's it's.Python scripting maybe it's a config.tool like ansible or one of Cisco's.tools like pi yes or NSO and so starting.a simulation is just kind of the first.piece of what I'm after when we then.want to use this for whatever tool or.whatever other piece we're after on that.as well and so there's a command called.viral generate that's built in and we.can see this will actually generate.inventory files for some common that.DevOps tools and so ansible NSO or PI.ATS and so I can come in here and so.again we've got a running simulation.going it's got five different devices.that are in here and I can say viral.generate ansible this will generate an.ansible inventory file and if folks that.are watching out for a minute with.ansible.it's ansible uh it's a configuration.tool originally for servers but can be.used for networking it's written in.Python and it's a way to kind of manage.configurations across your network.that's there and it's becoming quite.common for folks in the network.Automation space and so what you need to.use ansible is an inventory file kind of.a list of what devices do you want to.manage that are there and so oftentimes.that's the first step when working with.ansible is to create an inventory file.now when you're working with a.simulation tool like viral or any of.them that inventory file will sometimes.change because you don't know what how.many devices are there you don't know.what what management addresses they have.other types of pieces that are in there.and so to make the process simpler we.built into the viral utils this generate.capability that will automatically do.some of that heavy lifting based on the.current running simulation that's there.and so we can see here it gave me some.information it said placing iOS v1 and 2.into this group headquarters 3 4 going.to this data center and then 5 went into.this group called branch so we created a.new file for me called default inventory.amyl which is my ansible inventory file.so let's go look at that file real quick.just so you can see what's in there so I.just switched over here to Adam which is.a code editor it's a bit bigger and so.this bit at the top is some information.that's helpful.for folks that might be using this and.so the way viral utils works is it.creates an inventory file and it gives.you the option as the the topology.creator so whoever created the topology.file that drove your viral simulation is.you can add some references in there so.down here in this little block we can.see that there's this entry key ansible.group and so inside of an ansible.inventory file oftentimes you'll group.your devices into different types that.are there and so you can include that in.your viral topology file and so we can.automatically create that appropriately.and so in this topology file there was a.group for headquarters data center and.then branch and the devices were kind of.parsed away and so the the viral.generated ansible created this portion.of the file the part that's all active.and so we can see it's the all group has.a child called headquarters the.headquarters group has two hosts one of.iOS v1 one of iOS v2 then the group of.data center and then there's some hosts.there and then these ansible host.variables console server imports we're.all pulled dynamically by through the.api's from viral to populate this and so.I didn't have to manually go say well.what IP addresses were assigned to these.devices what ports are currently active.to connected these devices it's all gets.written automatically for me and so I've.now generated my inventory file and then.inside of my my my foe folder here along.with my topology file I've got this.example one gamma which is just a really.simple ansible playbook and so I can go.ahead and immediately ansible playbook.and then we'll just say example one dot.animal and this will run and so the idea.here is you can include when you're.writing some sample scripts or.automation you include your topology.file for whatever the you're testing.again you include your scripts and then.you let viral automatically create the.inventory file because that's the.dynamic piece that's the piece that's.going to change for every user that's.out.but under the hood everybody's still.using the same code using the same.pieces and we can see this is processing.this playbook simply just goes and.gathers some details about the switches.and will print them out as it goes in so.while this is finishing up any questions.any clarification on that that bit that.was there David yeah one thing I forgot.to all she Hank is when you use the.viral up application hmm.we didn't look at the topology through.the GUI but I'm assuming the topology is.there and I could look at the topology.through the GUI yeah yeah yes all we're.doing is we're manipulating it so here.I'm again this is the same exact web.page we were at before we can see that.viral demo a simulation default so it.created this random name for it and if I.click on it in here this will open up.that simulation yes sir I mean you're.just manipulating viral through an API.for those of those people who aren't.used to this so correct you're basically.coding it remotely using an API rather.than a Dewey but the results are the.same exactly yeah so here we're looking.at the simulation if I hit the live.visualization this will load up and.it'll build out we can see there's the.fiber outer mesh that was created yes.it's the exact same simulation that was.there um the value of doing it through.the API and the tooling is speed and.repeatability if I'm just creating a.simulation once it's going to be super.easy I'm only going to do it once it's.fine but if I'm gonna use the same.simulation or if I've got an entire team.that's going to use the same simulation.it doesn't make any sense for all of us.to have to point and click on err times.and so we just include that with the.code and then that viral up capability.just manages it under the hood but I can.still nothing prevents me from once it's.up going in here and and using those.tools remember I could go through and.say you know go collect the information.that's out there it's still the same.viral system it's just a different way.to manage it on that side and so by now.here's another question for you if I.let's say as a trainer or instructor.created 50 topologies that I wanted to.share with people you.would you recommend that I share that to.your sort of shared portal and then guys.can just use viral up to download that.and then rate the topologies is that the.simplest way to do it.so that would be a fantastic way and we.would love to host those for you David.if you if you set them up we can set you.up we can and get them posted and then.yeah people could go through whatever.when they did viral search they would.show up here in this list and it could.say David bumble underscore CCNA lab one.after viral files or if you didn't want.to do that and again I'm we're more than.happy to do it I'd love to have them in.there you could have put them in your.own repo and then when I did this I just.did vile up and then I grabbed the short.version of this grab it I just did that.under the hood it's it's assuming it.means we mean github and all this other.stuff if you posted it in your own and.you could go and if someone had a.private github you could do github.com.slash David B slash CCNA one I mean you.could you could put a full path in.that's just it's defaulting to ours and.if you create an we would we'd love to.put them in there I'd love to fill our.goal is always to fill this up and have.lots of really good starting topology.files that anybody can start with for.different projects yes oh that's a good.one Hank if people want to submit.topology x' to you because you could get.hundreds of these yep what's the best.way to do that is it to send you an.email or how do they how do they submit.their topologies yeah that's so we've.been working through so normally when.you work with in github we always tell.people hate before can do a pull.requests that's a great way to.contribute to an existing topology so if.someone it's like someone sees an issue.or wants to change one of these that's a.great way new topologies are a bit.tougher and we're working on a good way.I would say for now if someone has a.topology have them send me either an.email or reach out on Twitter while we.work on a much more efficient mechanism.to get them kind of added and hosted in.there which is probably going to turn.into some sort of a forum for where.someone can go in post and then it would.go in so we can look at in an automat.we're going to build some automation to.to build the onboarding of new.topologies to make it easier it's still.fairly new so we're a bit old-school in.the communication mechanisms right now.yes I think let's suggest that if people.want to submit to Paulo Gees they send.you a message on Twitter and then you.can take it from there because like in.gns3 they have a way where you can.submit topologies so I mean for guys who.want to prefer using viral this is a.great way to do it yeah yeah well look.at all those pieces in and like I said.we're working on better ways for.submission but for now reaching out on.Twitter would be great.so as we finish up just to kind of hone.down again we ran that ansible playbook.the inventory file was automatically.generated for me and it printed out and.in this case the playbook didn't do.anything other than just gather details.about the devices but again it could go.configure different pieces and all the.areas that are there and so as in.summary my goals for today were to show.okay viral is probably come a long way.if someone hasn't looked at it in a.couple of years make sure you take a.look at that web interface so that you.get comfortable you don't need the thick.client and particularly around the.automation areas and working it into.your workflows is take advantage of.viral utils to start driving and.including kind of in your workflow with.your Python scripts or play books and.other things that you're working on.that's what I want to do it today David.yeah that's great Hank I really want to.as always thank you for your time thanks.for sharing you know your knowledge so.just so that everyone's aware this is.the last call Hank and I are going to.have this year in 2018 but I think Hank.we should have more calls and bharal.because it feels like we still just.stretching the service you know.scratching the surface should I say of.what you can do with morale so if you're.up to it perhaps next year we can we can.do some more videos well we'll.definitely be back next year with lots.of different videos and I'm sure that.there's we can deep dive into viral and.all sorts of other stuff that I'm.looking forward to talking about but yes.we will we will be back in 2019 so Hank.with that I want to send you you know my.thanks from the other side of the world.thanks for you know spending so much.time with me this year and sharing so.much information I hope you enjoy Island.and we'll probably chat next year sounds.good David enjoy the rest.that's it.[Music].

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Most of them will not adapt to Western society and don't even want to (few exceptions apart). Their large number in Western nations (like in EU countries) compel their host nations to mend their ways. This results in culture and religious clashes that are a common place these days. Just to name few 2009 Swedish riots, 2010 French riots and many more are a result of this. There was a huge uproar and protests in France as it banned burqa (face covering). They also tend to exploit and abuse the social welfare and support systems. Few of the Muslims even practice polygamy which is illegal in weste Continue Reading

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