userspace-native-gre-iperf

To test GRE tunnel failover stability with iperf3, execute integrated shell scripts that generate traffic bursts and trigger automated redundancy-group failovers. This monitors long-lived TCP and UDP flows to ensure zero-throughput intervals are avoided during HA transitions.

GRE transit traffic verification confirms packets remain on the physical WAN path rather than leaking onto a persistent TUN anchor. It uses traceroute path checks alongside iperf3 bursts to validate dataplane isolation within xpf firewall deployments.

Yes, you need python3 and iperf3 installed to validate xpf firewall dataplane stability. These dependencies are required to execute the integrated shell scripts that perform traffic generation, path checks, and automated failover triggers.

You can monitor long-lived flows during redundancy-group transitions in an HA event by running the validation scripts. These scripts track TCP and UDP persistence to verify that failover behavior maintains throughput without interruption.

The best way to verify native GRE userspace dataplane performance is by executing integrated shell scripts that combine iperf3 traffic bursts with traceroute path checks. This validates that GRE transit remains performant and isolated during critical failover events.

GRE traffic drops during firewall failover testing when redundancy-group transitions cause zero-throughput intervals. The validation scripts detect this by monitoring long-lived flows and verifying host-originated traffic handoff maintains persistence across HA events.