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NX-OSv 9K and Programmable Fabric with VXLAN BGP EVPN - Part I

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     Nowadays , where all workloads and applications are being deployed in virtual environment and demand for workload mobility really high, the traditional designs for data centers are no longer sufficient to address all the requirements. Data Center design evolved from STP based approach to vPC based design that addresses some of major issues, like convergence time, unused links, ECMP and so on.  vPC approach was awesome it fixed some STP drawbacks but not all of them and it was not enough to accommodate all the requirements of the evolving data centers. That's when Clos Topology Fabric with VXLAN BGP EVPN came on stage. For those who are not familiar with VXLAN BGP EVPN fabric here is useful URLs: Deploy a VXLAN Network with an MP-BGP EVPN Control Plane White Paper Cisco Programmable Fabric with VXLAN BGP EVPN Configuration Guide   If you like learning something new and building network simulations like I do you will be excited to hear that Cisco released version 7.