Simplified: Why EVPN/VXLAN?

let's simplify EVP Envy excellent enterprise applications are changing some apps are running in virtual machines and others in containers some applications work in the cloud some in the data center campus or branch it's tempting to declare that changes everywhere but that's just not true for every new application there are dozens of older applications that aren't modular and likely run on bare metal which means that IT architects need to simultaneously prepare for the future while taking care of the present in the past applications were designed to live in the same layer - domain which has its problems protocols like spanning tree are fragile and noisy that's why layer 3 protocols are increasingly popular they can scale easily and efficiently running layer 3 virtual networks on top of layer 2 physical networks brings modern technology to existing infrastructure these are called overlays overlays offer layers of abstraction on top of physical networks so users and applications can be treated differently tailoring experience or security or connectivity to individual needs overlays allow newer applications to run over older infrastructure solving for both yesterday and tomorrow while older apps still require layer 2 connectivity virtualization provides these apps with their own virtual networks using tunnels to connect them this is precisely what evpn was designed to do [Music] evpn was made to support layer three virtualization for newer apps while providing layer 2 connectivity for older apps because evpn works with later two protocols like the X Lam a more scalable way to segment the network you can create virtual tunnels that encapsulate data transport it to a destination and then D capsulate it so even if data leaves one network and goes to another the tunnel makes it look like it's happening in one place operators can set the policy at these tunnel endpoints when there are just a few tunnels it can be done manually sometimes called the controller lists overlays when there are a lot of tunnels you need a software-defined controller simplify management B VPN also acts as an open standard that works between multiple vendors that's why a VPN is emerged as a standard for traffic between domains bridging the campus branch cloud and datacenter bvp nvx LAN allows old and new applications to work side by side helping enterprises to unify operations over diverse environments and that is e VPN simplified you [Music]

Channel: JuniperNetworks

Views: 26,161

Rating: 4.75 out of 5

Keywords: EVPN-VXLAN, Virtual Extensible LAN, Ethernet VPN, enterprise, campus, data center, applications, overlay, underlay, network virtualization, layer 2, layer 3, open standards-based architecture, endpoint flexibility

Id: XC62Dqn8S-g

Length: 3min 1sec (181 seconds)

Published: Tue Nov 05 2019