Tenants may have multiple overlays across a data center network where different VLANs belonging to the same tenant are mapped to different VXLAN Network Identifiers (VNIs). Tenants require routing between the VLANs, and VXLAN gateway nodes would need to act as Layer 3 gateways that are capable of routing traffic between tenant VLANs. Inter-overlay routing involves routing:
- Routing traffic from a tenant VLAN into a tunnel with the destination overlay‘s VNI.
- Routing traffic from a tunnel to a tenant VLAN that is different from the tenant VLAN associated with the VNI in the received packet‘s VXLAN header.
- Routing traffic from a tunnel to the same or different tunnel.
NoteRouting between a normal VLAN and a VXLAN tenant VLAN is supported on allExtremeSwitching Universal platforms.
NoteWhen MLAG and VRRP is configured on the tenant VLAN, VRRP should be active-active mode between the MLAG peers.