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Should interfaces on PAN standby unit be in a down state normally?

When using Active-Standby HA on an Palo Alto networks firewall, is it expected that the traffic interfaces (inside, outside) on the standby unit should be in a configured and down state until it becomes the active node? In contrast the Cisco ASA secondary unit has their interfaces up and have an IP address. 

* Palo Alto NetworksHardware Firewalls

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8/22/2022 - Mon

Are you running multiple switches? If you want fast failover, the interfaces on the standby switch need to be up. My failvoer takes places in usually less than a second for a planned failover.

It's Nexus 9K pair configured in a VPC.

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