 Good morning, Berlin. Morning Berlin slides not moving. There we go. Okay. Thank you It's really exciting to be here in Berlin a city steeped in such rich history I want to take you back and talk a little bit about the history of mobile communications If you go back almost 40 years ago. We launched our first generation of mobile Telephone services and then about every 10 years after that We launched another evolution another generation of phone services and Now today we're at the very early stages of what I would call more of a Revolution than an evolution 5g is a revolution the capabilities that 5g will enable are Things that will be step-function increases in latency in reliability in resiliency and They will allow massive Connections to Internet of Things applications with ultra low latency and at very high speeds But it's really more than just another generation It's more than just another g because 5g is going to enable new Services new products and even new industries that you and I haven't even thought about yet today It's going to allow our drones to have further reach and range and more capabilities It's going to make our factory smart It's going to augment our reality not just for entertainment, but also for critical functions such as search and rescue or troubleshooting at the top of a tower and It's going to control and make us safe in our autonomous vehicles there's another thing that's important and Interesting about 5g and that is it's the first generation of mobile communication services That was born in the cloud it is Delivered and driven by software at AT&T We are developing and deploying our 5g services on our internal network cloud our private network cloud We are doing that on open stack and we are deploying and managing it with airship as part of that Earlier this year in September. We made our first 5g standards-based 5g mobile call using our 5g packet core which rides on our network cloud and we did that seamlessly So we're going to talk today and Ryan's going to take us through a little bit more About our network cloud and how we're using it. Thanks, Amy. So Today on our demo, we're going to take one of our 5g evolved packet cores for a test drive These cores as Amy mentioned are running on top of our network cloud And that that network cloud is its architecture has 44 pearly nodes That leverages a white box fabric. We use SSDs and sep for storage and that design allows us to to scale our environments up to up to eight open stack regions per site that we deploy so I'm logged into a network cloud in on the West Coast right here and We should be able to see the 44 nodes are up and running and As I step through here We mentioned that our network cloud is deployed and managed by airship. So that means that Our under cloud is a hundred percent containerized and you can see those containers running our various airship components here and then it should be no surprise that You know, this is an open stack cloud So thanks to airship and open stack home, you know Open stack and all of the services that it depends on are also 100% containerized running in the same environment We can see that here so you know if I You take that a little further one of the things that really allows us to do and and Alan and Matt mentioned this was We're able to stamp out our environments really fast and extremely predictably And today we've we've deployed 20 Network cloud open stack regions leveraging our airship under cloud So let's quickly take a look at the the core itself. So The core these are all the instances that are running on this particular network cloud and you can see the significant number of networks here One thing I should point out is that we're using No, you know overlay here. We're using native SRV out of the box from open stack and We're going to we're gonna now try something a little little risky Let's hope that the demo gods like us so we're gonna we're gonna attempt to call Gus Borg Gus is the lead engineer on our 5g core He's in Redmond, Washington right now. It's about one o'clock in the morning for him and it's been a real champ sticking with us on this and If we able to get through to him, he's gonna he's gonna talk to us a little bit about the core I should point out that Gus is an example of an end user, right? He's a guy we build infrastructure my team under Amy we build infrastructure We Gus uses that infrastructure to do cool things and this is what he's using that infrastructure to do and You'll notice he's in a funny-looking room He's in a shielded room because it's a new 5g radio that we're using and we call it the cage So you'll see he's nice nice copper copper room. So let's try to give Gus a call Hey Gus, you're on with Berlin Hey Berlin My name is Gus forg and I've been working with with Ryan and Ian the rest of our Design team on on the 5g EPC design for for about a year now A quick explanation for those of you who are not familiar with the mobility terms are our EPC is the Evolve packet core Which is really the session anchor point for a data session in a mobility network And if you if you think about an EPC an EPC looks a lot like a VPN concentrator As a user has mobility events as they move between cell powers We don't we don't have the user change their IP address But rather we move a tunnel around and and your traffic cell tunnel back into our EPC We've been virtualizing EPCs for for many years now But this network cloud project that we're working on for 5g Is is really setting the standard for how we're going to do engineering going forth The sounds that we have had in the past with our previous engineering project has been that the EPC looks very much like A traditional EPC and and so much that each endpoint was individually. I'm sorry each each each gateway at a single address And and for us that meant that we would have to distribute the traffic into multiple VNF and this creates what we call east west traffic or in inter VNF communication Which is very wasteful from a computer resource perspective The standard sort of caught up with where all of you are in terms of of the cloud deployment And we have this concept and within mobility now known as pops or the control and user plane separation Where we take the control plane and we deploy that as one set of nodes that handle things like session management And then we have user plane nodes that that handle the individual IP packets of the user data sessions And what this allows is is is for each one of our user plane nodes could be individually addressed so that we don't have to have this complex routing mechanism and things things of that nature Unfortunately that doesn't solve the problem completely because we still have other network elements besides a gateway in our EPC Such as CGNAT and optimization functions that that have to be filled along with our our gateway And to handle that We've come up with a concept known as VNF teaming where we use the open stack scheduling To deploy single session so we don't have any east-west traffic that ever leaves the house and rather we really have Space going towards cell towers another interface going towards the Internet and this this also brings up a lot of resiliency So so cups in FG they bring to us simple horizontal scale where each host acts as a unit of capacity Open stack is what is going to allow us to rapidly deploy these technologies in order to satisfy the generation acting need for 5g in VR because that we're really excited about What we're working on what all you guys are working on at the summit? Hey Ryan, do you think we can try out some of that resiliency that the cups architecture gives us? Yeah, I mean so far so good. So so one of the things we're gonna try now is we should be able to Take a look at this little track that we built here So this is the this is the session running through our 5g core And I've pulled the the UUID of the VM that's serving that session and I'm gonna I'm gonna hard Reboot the that VM and what we should happen is Gus should we should have that teaming take effect And we should be able to to hold on to Gus. There'll be a there'll be a slight interruption as a new VM Picks up that session and it transitions, but we should should be able to keep them. So that's now happened and And Let's see Gus you're still there Yep, should be reconnecting And now what you what we should see is you'll see in the bottom right We've lost the VM and there's Gus he's back Hey guys and And now we have a new UUID For the VM that's picked up this session So it's pretty late for Gus so we'll let you get back to bed and We'll We'll do that by Actually killing the the 5g session itself are just resetting the callers in the vnf and That should drop Joe Gus off. Thanks a lot for sticking with us Thanks, Gus. Bye Gus. Bye. Bye Gus And he's gone We showed you that AT&T is now really truly deploying our standards base 5g today We'll launch it later this year. Our 5g core that Gus talked about is enabling is a critical enabler to this And we are building it on infrastructure delivered by open stack deployed by airship and Managed by airship and if you want to know more about that go to airship it org Thank you. Thank you