The ZTP timeout interval is 30 minutes. After each ZTP timeout, the node reboots and reattempts the ZTP process. The node does not reboot if the ZTP timeout interval expires while the node is executing a DHCP offer or downloading files. The node executes the DHCP offer until it succeeds or fails, at which point the node reboots; if the offer is successful, the node comes up in normal operation mode.
The DHCP timeout interval is 20 seconds. If a DHCP offer is not received within the DHCP timeout interval, the auto-provisioning process is reattempted using the next valid interface.