From the course: VXLAN BGP EVPN for Data Center Networking: Design, Deployment, and Troubleshooting

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Underlay IP addressing

Underlay IP addressing

From the course: VXLAN BGP EVPN for Data Center Networking: Design, Deployment, and Troubleshooting

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Underlay IP addressing

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- Welcome back to the implementing VXLAN BGP EVPN Lab series. This is the second video, Underlay IP Addressing. By the end, you will understand how to assign IP addresses for our VXLAN underlay using the IP unnumbered method on our Cisco Nexus switches. Let's build the foundation for our Spine-Leaf network. From our first video, we know our lab has four Cisco Nexus switches. Spine1 and Spine2 connect to Leaf1 and Leaf2 via E1/1 and E1/2. The underlay needs IP Addressing to support VXLAN layer 3 transport. There are two methods using /30 or /31 subnets for point-to-point links, which assign unique IPs per interface. Or IP unnumbered which borrows IPs from a loopback to save address space. In our lab, we will use the IP unnumbered method. It is efficient reusing a loopback IP for multiple interfaces, reducing IP waste in a Spine-Leaf setup. Let's configure IP Addressing on Spine1, Spine2, Leaf1 and Leaf 2, focusing on E1/1, E1/2 and loopback0 for each switch. First, is Spine1. Start…

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