Does an AR support dual uplinks in active and standby mode

An AR with dual WAN interfaces configured can support two uplink interfaces in active and standby mode.
1. Configure two static routes with different priorities. Generally, the data flow is sent out through the active link with a high priority. It is sent out through the backup link with a low priority only after a fault occurs on the active link.
2. Configure policy-based routing. Generally, the data flow is sent out through the active link through on policy-based routing. It is sent out through the standby link based on the default route in the routing table after a fault occurs on the active link.

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