Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

Limitations on VXLAN

While configuring a VXLAN, the following conditions apply:

• Hybrid ports are not supported in VXLAN (hybrid port means an interface tagged to one VLAN and untagged to another VLAN).
• The show vxlan vxlan-instance statistics remote-vtep-ip and the show vxlan vxlan-instance statistics instance commands are not supported in a NSX environment.
• VXLAN is not supported in a stacking setup.
• VXLAN with VRF configuration is not supported.
• Routing over VXLAN is not supported in a controller-based VXLAN setup.
• SNMP and REST API are not supported for VXLAN configurations.
• Multicast over VXLAN is not supported.
• In multicast and broadcast traffic, even though the remote VTEP is reachable through the ECMP path, load balancing is not supported.
• Supports only 4 remote vteps through a single interface in a broadcast domain.
  • When a fifth remote VTEP configured is reachable via the same network port, traffic destined to the fifth remote VTEP flows to the first remote VTEP configured via the same network port. If any of the first four remote VTEPS configured via the same network port is removed, traffic flow to the fifth remote VTEP is not restored. You need to do one of the following to restore traffic flow to fifth remote VTEP correctly :
    • Remove and add the fifth remote VTEP again
    • Flap the next hop reachability to the fifth remote VTEP
• Single VNI can be mapped to Single VLAN in both static and NSX controller-based VXLAN. Hence, only 4000 VNIs are supported while configuring static VXLAN.
• You can map multiple VNIs with multiple VLANs in an NSX-based VXLAN.
• You can configure only one Nuage controller in a VXLAN setup. Nuage controller datapath-learning is not supported.
• In a Nuage controller-based VXLAN deployment, station moves of non-virtualized entities may not work as expected due to a possible issue in the Nuage contoller.