Configure an SD-WAN Interface Profile

1. Log in to the Panorama Web Interface.
2. Select NetworkNetwork ProfilesSD-WAN Interface Profile and select the appropriate template from the Template context drop-down.
3. Add an SD-WAN interface profile.
4. Enter a user-friendly Name for the SD-WAN interface profile, which you’ll see in reporting, troubleshooting, and statistics.
5. Select the vsys Location if you have a multi-vsys Panorama™ management server. By default, vsys1 is selected.
6. Select the Link Tag that this profile will assign to the interface.
7. Add a Description for the profile.
8. Select the physical Link Type from the predefined list (ADSL/DSL, Cable modem, Ethernet, Fiber, LTE/3G/4G/5G, MPLS, Microwave/Radio, Satellite, WiFi, or Other). The firewall can support any CPE device that terminates and hands off as an Ethernet connection to the firewall; for example, WiFi access points, LTE modems, laser/microwave CPEs all can terminate with an Ethernet handoff.

   The following link types will form tunnels with only the same link type:

   • Public (or Other) link types—Ethernet, ASDL/DSL, Cable modem, Fiber, LTE/3G/4G/5G, WiFi, and Other.
     Any public link type to any other public link type will create a tunnel successfully. For example, Ethernet-to-Other and Other-to-Other link types will create the tunnels successfully.
   • Private and Point-to-Point link types—MPLS, Satellite, and Microwave/Radio.
     A private link type can create the tunnel only with the same private link type. For example, MPLS-to-MPLS and satellite-to-satellite link types are valid and therefore the tunnels will be created successfully, but MPLS-to-satellite won't create the tunnel.
9. (PAN-OS 9.1.2 and later 9.1 releases) VPN Data Tunnel Support determines whether the branch-to-hub traffic and return traffic flows through a VPN tunnel for added security (the default method) or flows outside of the VPN tunnel to avoid encryption overhead.

   • Leave VPN Data Tunnel Support enabled for public link types that have direct internet connections or internet breakout capability, such as cable modem, ADSL, and other internet connections.
   • You can disable VPN Data Tunnel Support for private link types such as MPLS, satellite, or microwave that do not have internet breakout capability. However, you must first ensure the traffic cannot be intercepted because it will be sent outside of the VPN tunnel.
   • The branch may have DIA traffic that needs to fail over to the private MPLS link connecting to the hub, and reach the internet from the hub. The VPN Data Tunnel Support setting determines whether the private data flows through the VPN tunnel or flows outside the tunnel, and the failed over traffic uses the other connection (that the private data flow doesn’t use). The firewall uses zones to segment DIA failover traffic from private MPLS traffic.
10. Specify the Maximum Download (Mbps) speed from the ISP in megabits per second (range is 0 to 100,000; there is no default). Ask your ISP for the link speed or sample the link’s maximum speeds with a tool such as speedtest.net and take an average of the maximums over a good length of time.
11. Specify the Maximum Upload (Mbps) speed to the ISP in megabits per second (range is 0 to 100,000; there is no default). Ask your ISP for the link speed or sample the link’s maximum speeds with a tool such as speedtest.net and take an average of the maximums over a good length of time.
12. (Optional) Select the Path Monitoring mode in which the firewall monitors the interfaces where you apply this SD-WAN Interface Profile.

    The firewall selects what it considers the best monitoring method based on Link Type. Retain the default setting for the link type unless an interface (where you apply this profile) has issues that require more aggressive or more relaxed path monitoring.

    • Aggressive—(Default for all link types except LTE and Satellite) Firewall sends probe packets to the opposite end of the SD-WAN link at a constant frequency. Use this mode if you need fast detection and failover for brownout and blackout conditions.
    • Relaxed—(Default for LTE and Satellite link types) Firewall waits for a number of seconds (the Probe Idle Time) between sending sets of probe packets, making path monitoring less frequent. When the probe idle time expires, firewall sends probes for seven seconds at the Probe Frequency configured. Use this mode when you have low bandwidth links, links that charge by usage (such as LTE), or when fast detection isn’t as important as preserving cost and bandwidth.
13. Set the Probe Frequency (per second), which is the number of times per second that the firewall sends a probe packet to the opposite end of the SD-WAN link (range is 1 to 5; default is 5). The default setting provides subsecond detection of brownout and blackout conditions.

    If you change the Probe Frequency for a Panorama template, you should also adjust the Packet Loss percentage threshold in a Path Quality profile for a Panorama device group.
14. If you select Relaxed path monitoring, you can set the Probe Idle Time (seconds) that the firewall waits between sets of probe packets (range is 1 to 60; default is 60).
15. Enter the Failback Hold Time (seconds) that the firewall waits for a recovered link to remain qualified before the firewall reinstates that link as the preferred link after it has failed over (range is 20 to 120; default is 120).
16. Click OK to save the profile.

17. Commit and Commit and Push your configuration changes.
18. Monitor your application and link path health metrics, and generate reports of your application and link health performance. For more information, see Monitoring and Reporting.