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Flow-Based and Packet-Based Processing

  • GRE acceleration enhancement (NFX Series, SRX Series, and vSRX)—Starting in Junos OS Release 21.2R1, security devices support the existing PMI and GRE acceleration for non software-defined WAN (SD-WAN) deployments.

    PMI and GRE acceleration improve GRE and MPLS-over-GRE performance.

    [See gre-performance-acceleration and show security flow status.]

  • Multicast support in SD-WAN deployments (NFX150, NFX250, NFX350, SRX300, SRX320, SRX340, SRX345, SRX380, SRX550M, SRX4100, SRX4200, SRX4600, and vSRX)—Starting in Junos OS Release 21.2R1, we've added support for multicast traffic on security devices in Provider Edge (PE) for SD-WAN deployments. The support for multicast traffic is available when the security device is operating with forwarding option set as flow-based.

    Support for multicast traffic results in bandwidth preservation and more efficient traffic flows.

    [See mode (Security Forwarding Options) and Virtual Routing and Forwarding Instances in SD-WAN Deployments.]