The architect designs a spine and leaf network for a single data center that will...

Asymmetric IRB requires a third L3 VNI to route packets between ingress and egress VTEPs is a true statement about the IRB type for a spine and leaf network for a single data center that will use multiple leaf switches as Virtual Tunnel End Points (VTEP). Asymmetric IRB is a method of routing traffic between different VXLAN segments using a centralized gateway. In this method, ingress VTEPs route the traffic to the gateway VTEP using a Layer 3 VNI, and egress VTEPs route the traffic to the destination networks using a Layer 2 VNI1. The Layer 3 VNI acts as a transit VNI for inter-VXLAN routing.