Be aware of the following considerations for configuring servers in Oracle SDN:
When configuring single VNICs, be aware that only one VNIC per HCA port per cloud is supported.
For HA VNICs:
The two VNICs will be “bonded” through the host OS or hypervisor, which determines the fault tolerance and failover properties.
On Linux hosts, many bonding modes exist for bonded interfaces. However, Oracle SDN supports only mode=1 (active-backup).
When configuring HA VNICs, be aware that only one VNIC per HCA port per cloud is supported. Do not attempt to configure both VNICs in the HA VNICs to the same HCA port or cloud.
HA PVI VNICs require a dual-port HCA, and one VNIC must be connected to each port of the dual-port HCA.
To prevent an MTU mismatch, the MTU size for the VNIC, cloud, and host server's interface(s) must be the same.