Possible Scenarios during AP Image Download

The following page describes multiple scenarios for AP image download.

Table 1: Scenarios for AP image download for devices running AOS-8.12.0.0

Scenario

Resolution

In a new deployment, if the AP is running AOS-8.11.0.0 or lower versions and the controller is running AOS-8.12.0.0.

The AP software will not have the AP provisioning configuration for SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. as its default protocol. Instead, it will use FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. followed by TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. to download the AP images.

In a new deployment, if the AP is running AOS-8.12.0.0 and the controller is running AOS-8.11.0.0 or lower.

The AP will use FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. followed by TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. and then SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network..

In an existing deployment, if the AP is running AOS-8.11.0.0 or lower versions and the controller is running AOS-8.12.0.0.

The AP will use FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. followed by TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. since there is no configuration option.

In a new deployment, if the AP and the controller are running AOS-8.12.0.0.

The AP will download using FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. followed by TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. and then SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. since the configuration is not available on the AP yet. In case users want to download using SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. only, there is an option to disable FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. and TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. ports.

Note: The controller has an option in the AP system profile where SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. can be set as the default protocol for AP image download. This can be checked in the Managed Network > Configuration > System > Profiles> All Profiles > AP System > Name of the profile page of the WebUI.

In an existing deployment, if the AP and the controller are running AOS-8.12.0.0 with cpsec disabled in the controller and the AP group level configuration enabled.

The configuration will be shared to the AP and the AP will use SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. first, followed by FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. and then TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. .

Note: The controller has an option in the AP system profile where SCP Secure Copy Protocol. SCP is a network protocol that supports file transfers between hosts on a network. can be set as the default protocol for AP image download. This can be checked in the Managed Network > Configuration > System > Profiles> All Profiles > AP System > Name of the profile page of the WebUI.

FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. will be the first used protocol with an interval of 10 seconds in-between for 3 times. If the AP cannot establish FTP File Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. connection, it will try TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. for 3 more times with an interval of 10 seconds in-between. If the AP fails to establish TFTP Trivial File Transfer Protocol. The TFTP is a software utility for transferring files from or to a remote host. connectivity, it will reboot and the same protocols will run again in the same order.