Category: EVPN
Running VXLAN/EVPN over SD-WAN
Topology: regional/metro VXLAN EVPN fabric across multiple small branch offices and a regional hub with SD-WAN at all sites, with local direct Internet/Cloud traffic breakout at SD-WAN.
Expected traffic flow: internal traffic over VXLAN/EVPN over SD-WAN with local direct Internet/Cloud access at each branch. Additionally, the VTEP function is on the access switches at each location.
VXLAN and EVPN as DCI Technology
Can we use VXLAN with EVPN to implement a data center interconnect (DCI) between two data centers? Can we use it to reduce the failover time to below 50 msec?
Integrating L3VPN WAN with VXLAN/EVPN fabric
We are running a multi-tenant DC network, spanning 3 sites. The network has three layers (per site): DC-LAN, DC-EDGE and DC-WAN-CORE. DC-EDGE is used for connecting all incoming circuits (internet, all sorts of wan connections). DC-LAN is used for connecting workloads. DC-WAN-CORE connects 3 sites together.
Right now, we are using MPLS-L3VPNs between DC-LAN, DC-EDGE and DC-WAN-CORE. DC-LAN (L2 part) is a traditional network with VPC and OTV.
We want to move to VXLAN/BGP-EVPN for DC-LAN. But what to do with DC-EDGE and DC-WAN-CORE? Still use MPLS (but with SR instead of LDP) or also use VXLAN/BGP-EVPN? In the last option, we could use (Cisco) N9k only boxes. In the first option, we could also use only N9k boxes, but then using real routers in the DC-EDGE makes more sense to have more routing capabilities and insights at the border of your network.