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  • Custom mode (NFX150 devices)—Starting in Junos OS Release 22.1R1, you can define and specify a custom-mode template for NFX150 devices. Custom mode provides an option to allocate resources to the Layer 2 data plane, Layer 3 data plane, and Network Functions Virtualization (NFV) backplane. The custom mode supports only basic firewall features.

    [See NFX150 Overview.]

  • Enhancements to custom-mode configuration (NFX250 NextGen and NFX350 devices)—Starting in Junos OS Release 22.1R1, we've enhanced the custom-mode configuration to support optimal use of CPU and memory resources. You can limit the CPU utilization of the Layer 3 data plane by configuring the cpu colocation quota parameter. This configuration allows for sharing of CPUs in deployments where the Layer 3 data plane does not require a dedicated CPU. You can configure the CPU utilization rate in custom mode by using the set vmhost mode custom name layer-3-infrastructure cpu colocation quota quota-value command.

    We've also introduced support to pin the emulator to specific physical CPUs.

    [See NFX350 Overview and NFX250 NextGen Overview.]