 So, thank you Arpeth and good afternoon everyone, so I am going to give you a quick update on what Open Networking Foundation has been doing for last year or more and also tell you that in the process of kind of driving SDN, NFV with disaggregation and open source, we ended up kind of inventing or creating a unique open source model that we call curated open source and I will try to both tell you what we have been doing and then also try to tell you why and how we ended up inventing this unique open source model that we call curated open source. So, the first thing is that I hope you all know that Open Networking Foundation's mission has been to help network operators transform their infrastructure and services. And the idea is to help operators bring lot more CAPEX and OPEX efficiencies as well as help network operators invent new revenue generating services on top of that infrastructure under which the city of AT&T keeps saying that I want to turn my network infrastructure into a platform for innovation and a platform for innovative services and that is what we are trying to do. And the way we are trying to do this is by pushing SDN and NFV cloudification as innovative architectures forward, but in addition to that using leveraging disaggregation and white boxes and open source. So, what is important to recognize about ONF and the mission we are after is we are not only about open source, we are not only about SDN or we are not only about disaggregation, we strongly believe that if we are going to bring about this transformation and if we are going to help operators succeed in this transformation, we have to drive all these three things SDN, NFV architecturally, we have to push for disaggregation to bring that economies and all that and we have to push for open source. And when we drive all of these things together that is how we can bring about this transformation. But now when you look at if you want to drive disaggregation, open source, SDN, NFV together what that leads to is you transform a network either today's network or future network built using close proprietary boxes to something like this where you are building this infrastructure with simpler forwarding devices built with merchant silicon and white boxes. The SDN and the NFV control plane that is realized using you can call network operating system and then on top of that you have network and management control applications, you have virtual network functions, you may have services and all of that and that is what you build on top of this infrastructure. Now what I want to emphasize is that when we are doing this disaggregation and bringing open source and NFV, we are not only talking about doing it to package switches in data centers, we are bringing this approach to open line systems or OLT for broadband access that is how you build Gpawn, XGSpawn and these network for broadband access. We are bringing the same approach to radio access network with disaggregation with RUDU and bringing this to the 4G and 5G networks and we are trying to do the same thing with the optical networks, optical transport networks with open line systems and disaggregated RUDU. Now when you look at all of this together, I hope you recognize that this represents a major disruptive innovation in some sense and this is a disruptive innovation for network architecture and more importantly this is a disruptive innovation for the business model of networking industry of last 40, 50 years and when you think about it that way, you are not surprised that most of our leading OEMs find it very difficult to decide how to deal with this disruptive innovation, should they embrace it? If they embrace it that means they are going to cannibalizing their products and revenues of today and so not surprising we find it difficult to get developers committed to our platforms and solution from the leading OEMs because today most of the developers in the networking industry are in these OEMs and what that means is that we have found it difficult to build developer communities around our open source platforms and solutions. So what that meant is open networking foundation and our operators ended up creating inventing a new open source model that we call curated open source and curated communities and that is how we have been building some amazing open source platforms and solutions but before I get to them let me tell you what we mean by curated open source and curated open source community. So let us begin with the operators. So when you think about AT&T, Deutsche Telekom, NTT, China Unicom, these are some of the operators that we worked with. These are the operators that operate, own and operate some of the largest infrastructure in the world. They are all committed to the transformation I was talking about, transforming that infrastructure so they can build it with this aggregation, open source, SDN, VPN, VNF and all of that. Now these are the operators that know how they are going to go through this transformation. What are the use cases that are important to them? What are the priorities for them? And so that is why we start with them and then with these operators we decide what are the particular solutions, particular use cases that we are going to focus on and that is what they are the ones that prioritize what is important and what is ONF and this community should pursue. Then we have ONF and an engineering team. So we have a team of maybe 30 people that are part of Open Networking Foundation. Sometimes our board members and others in the industry have described this team of 30 people as small and mighty team and the interesting thing is that this team has no legacy to protect. They are not trying to push particular agenda except the mission that we are after and so they are able to pursue disruptive architectures, disruptive solution with lot of passion and number of times we have done things then people said this is impossible to do or this is crazy to do and that is the kinds of things we have done again and again with our platform. Then another important thing is now operators also bring a supply chain partners into this ecosystem and these are the supply chain partners that are committed to this mission, mission of desegregation, mission of SDN, NFV and open source. So once these supply chain partners are part of this ecosystem then they work closely with the operators. They work on platforms and solutions that the operators care about and operators want to take it into deployment. As a result they do not have to do lot of guess work about what operators want and what operators are going to deploy. They are working hand in hand with the operators. As a result for these supply chain partners there is significant benefit in terms of reduced time to market and because the supply chain partners are complementary with each other that is they are not competing head on or they are working together they also realize lot of benefits of shared R&D and that is significantly reduced R&D cost for creating these platforms and solutions that operators are wanting to deploy. So in some sense this is kind of what we mean by this curated open source model and the community that we have been building. Now here in the community that it looks like for all the reasons I mentioned it's not surprising that we have our top operators these are our board members. These are the people that own and operate the network they know what the strategic priorities ought to be and they provide the strategic direction and guidance to open network foundation. These are the supply chain partners that the operators have recruited and they work together to create these platforms and solutions that the operators want to take it into deployment. Of course we extend this value proposition to many more operators that are members of ONF and our ecosystem and on top of that we have supply chain people and the collaborators. So this ecosystem is approximately 150, 160 companies but this is how this ecosystem works which is kind of unique in open source and how we do things. So that was all about our mission, how we operate, how this curated open source model is. Now let me quickly walk you through what are the open source platforms and solutions that we have been building for last few years. So let me begin with stratum. So if you take a packet switch a white box packet switch stratum is a thin switch operating system that sits on top of the white box packet switch for example and it supports these SDN interfaces. We call them next generation SDN interfaces that is beyond open flow. So supports like P4, P4 runtime, open config, GNMI, GNUI and I will talk about that in just a minute more. Similar to stratum we have another open source platform that we call Volta. It is again a thin software layer that creates the open flow abstraction or a uniform hardware abstraction on top of variety of OLT devices that make up the GPON and the broadband access networks. So again you have a uniform open flow abstraction on this particular device. Similarly we have built an XRAN controller that does the same thing makes radio access network, a disaggregated radio access network that is SDN enabled and on top of that you can build services and similarly we use disaggregated open line systems and rodents and then on top of that we use ONOS as the SDN controller or you can think of that as an SDN network operating system and that is designed for scale performance and high availability and then on top of that we have this open source disaggregated and virtualized EPC thanks to Intel and Sprint. We got this release 13 compliant implementation that is again disaggregated and virtualized and this is the almost production ready that is going into production in Sprint and DT sometime later this year. Then on top of that we build a variety of services and these you can think of them as virtual network functions you can think of them as services but we have a portfolio of 30 or so services that are a part of this portfolio and then finally we have a platform that we call XOS so this is the platform that is you can think of it as a service operating system or a platform that does service lifecycle management service composition and putting service graphs or service meshes together and managing those services. So for a second if you look at this particular software stack that we have built you can see this is a software stack that you can take it into broadband access you can take that into mobile wireless packet core and much more and now this is only the half of the story because now the challenge is on one hand to do the innovation you do need this aggregation and this open source platform but when it comes to deployment the operators do want integrated solutions they don't want disaggregated component there are very very few operator that can afford to take all this disaggregated component put it together and deploy that in the production network. So you do need integrated solution and that represents a challenge and that's what ONF kind of because of the requirement we kind of stepped up to create some integrated solutions as well and let me briefly tell you about some of them. So the first one is what we call trellis as the NFV fabric okay and so what that particular solution does it brings together open flow white box switches okay those are kind of what I already mentioned they may right now they may be running OFDPA but in the future they will run stratum on top of that onus as the network operating system or SDN control plane and then there are set up application that turn this into a distributed leaf spine fabric okay and the good news here is that there is a tier one operator in the US that has already deployed this distributed leaf spine fabric into their production network in multiple geographies and that is carrying traffic from many I mean thousands of live customers and if you look at their plan they're going to scale it to many many geographies in 2019 and there are plans to deploy that in some other operator networks as well. The second solution that integrated solution that we have enabled is something called SIBA it stands for SDN Enabled Broadband Access okay and this is kind of bringing SDN to the GPON XGS PON and some of the broadband access networks where we bring in this solution we bring again open flow enabled switches white box switches the OLT devices that I mentioned to you that's run Volta on the top and become part of SDN and then of course onus of the operating system XOS and NEM and a set of services this software stack that is sitting on top of these devices also provides F caps capability that all the operators want and then this software stack integrates with the OSS BSS of the operators and here AT&T, Deutsche Telecom, Turk Telecom, Telefonica are some of the operators that have publicly stated that they are doing trials with this and they have plans to take this into production in 2019 and beyond the next solution that we are building is you can think of that we haven't picked the name yet we informally call this next generation SDN stack and again it begins with white box switches and stratum and as I mentioned stratum is the one that supports all the next generation interfaces P4 P4 runtime and all of that and then now we are also building the next generation onus and then on top of that a set of services and now this particular next generation SDN stack is going to become the foundation for all the other solutions that we build so we are going to transition from open flow base SDN to P4 open config GNMI and all of that as we go forward so to just give you a little more context about this so as you know we started with open flow at the SDN thing separation of control and forwarding open flow was the protocol that defined that but that protocol was a standard it was kind of defined and relatively static and as a result it was really not allowing you to specify the forwarding behavior dynamically in software and making it easy also we didn't have much of configuration we didn't have much operation that were part of the SDN architecture okay now what we have done with all the advancements that have happened that you can have a programmable forwarding plane forwarding thing or you can have fixed function but what we can do is to allow a network operator to be able to specify the forwarding behavior they want in P4 in a higher level domain specific programming language and through a compiler you can compile that forwarding behavior and then instantiate that in the switching or in the forwarding plane as well as in the control plane using something called P4 runtime okay and then we are also trying to support configuration now and the operations for configuration we are supporting open config and GNMI and for operations we are supporting the GNI protocol and these are the interfaces that Google have successfully used in their network and we are not trying to adopt them in this next generation SDN okay and then and so that is what makes the stratum and as I mentioned now we have begun some work on next generation or not where on one hand we want to support the next generation SDN interfaces but also we are re-architecting onos so we can bring microservices based ideas and try to make that onos very very what should I say tighter footprint for a given use case so that for a given use case you can definitely customize it for that particular use case and so together our goal is to bring two big benefits to the network operators so the first big benefit we want to bring to the network operators with this is enable operators to completely control of the network they can specify their behavior in the P4 and compile it and then be able to achieve the zero touch networking for verification for network debugging change management and lifecycle management okay okay so briefly I am going to talk about another particular thing that's a converged multi access and core in some sense this is the most important thing so here what we're trying to do is to bring all these pieces together into a converged access and edge okay and this is there are many operators that are supporting us but let me give you the problem statement and you know what we are trying to enable so the first thing is that the network operators operate many networks you may know this right for every access technology wireline for wireless different kinds of wireless network they end up operating many infrastructures okay and they end up deploying lots of physical devices in order to operate this infrastructure as you can imagine this is very capex and OPEX intensive and it makes their life much harder and this is only going to get worse with 5G and IoT so the holy grail in the operator world is can you build a single infrastructure where only the access link is unique depending on the access technology but rest of the infrastructure can be the same okay and that is what we are trying to enable where not only the infrastructure is the same you can also have seamless services that is a service can migrate from one network to another and a user can migrate in a seamless fashion without having to worry about which access network you are on okay so I'm just so the interesting thing here is that because of all these innovations I'm talking about what is considered the holy holy grail of conversion becomes possible because if you have all this desegregation you have this virtualization then you can combine these functionalities for multiple access technologies and you don't have to have multiple network so all these innovations I was talking about we are able to bring them together and be able to build a single platform that brings all of these together for wireless as well as wireline network I'm sorry I'm running out of time so I will not go in but give me one minute to wrap it up so but the idea is we are able to now show that everything that we did for wireline as well as the wireless because we did that with desegregation and because we did this is virtual software function we are able to bring them together and in fact if you are familiar with our architecture called called it actually brings all of these pieces together and now we are leveraging all of this to create this converge multi access with number of operators okay my last slide I will jump to this okay so thanks for sitting through all these PowerPoint slides and very high level overview but interesting thing is that everything I said is here on the floor you can go and check out all these develop I mean the platform solutions integrated things I talked about all of them are here lot of developers are there from the community go and ask hard questions about implementations and what we have done and the last comment if you like what you see don't be shy come and join us and together we can make this transformation happen thank you.