Layer 2 or Layer 3 Overlay Networking

Layer 3 Sub-Interface Support in OcNOS-DC

OcNOS-DC now supports Layer 3 (L3) subinterfaces. An L3 subinterface is a logical interface created on a physical port, allowing multiple IP networks or VLANs to share the same physical interface while maintaining separate routing domains. This feature enables efficient inter-VLAN routing, scalability, and reduced port usage, especially for WAN uplinks.

For more details, see the Layer 3 Sub-interface Configuration section in the OcNOS Layer 3 Guide, Release 7.0.0.

Route Distinguisher (RD) Configuration Restriction

Manual configuration of the Route Distinguisher (RD) is restricted within the reserved range vtepip.64512 to vtepip.64532, where vtepip represents the globally configured VTEP IP address. This reservation prevents conflicts with system-generated RD values that are automatically derived from the global VTEP IP, ensuring consistent and reliable operation of EVPN and VXLAN services.

For more details, see the rd (route distinguisher) topic in the OcNOS Layer 3 Guide, Release 7.0.0.

VxLAN Software Forwarding on Demo VM

VxLAN Software Forwarding on OcNOS DEMO VM enables L2 and L3 VxLAN forwarding on OcNOS-x86-based platforms. The feature supports Static VxLAN BGP, VxLAN IRB (Asymmetric and symmetric) deployments using a software data path.

For more details, refer to the OcNOS VXLAN Guide, Release 7.0.0.