Virtual Machine Platform Resources

A Virtual Network Function (VNF) requires the CPU core, memory, disk size, and network interfaces specified for operation. Deployment details, such as the use of distributed DoS protection, dictate resource utilization beyond the defaults.

Default VM Resources

VM resource configuration defaults to the following:

• 4 CPU Cores
• 8 GB RAM
• 40 GB hard disk (pre-formatted)
• 8 interfaces as follows:
  • 1 for management (wancom0 )
  • 2 for HA (wancom1 and 2)
  • 1 spare
  • 4 for media

Interface Host Mode

The OCCSM S-CZ8.2.5 VNF supports interface architectures using Hardware Virtualization Mode - Paravirtualized (HVM-PV):

• ESXi - No manual configuration required.
• KVM - HVM mode is enabled by default. Specifying PV as the interface type results in HVM plus PV.
• XEN (OVM) - The user must configure HVM+PV mode.

AWS allows you to configure only HVM or PV for an AMI because the HVM defaults to enabling VIF. Oracle recommends keeping the default. For enhanced networking, you can enable SR-IOV mode after deploying a VM.

CPU Core Resources

The OCCSM S-CZ8.2.5 VNF requires an Intel Core2 processor or higher, or a fully emulated equivalent including 64-bit SSSE3 and TSC support.

If the hypervisor uses CPU emulation (qemu etc), Oracle recommends that you set the deployment to pass the full set of host CPU features to the VM.