Download and install Cloud Failover Extension

The Cloud Failover Extension package is an RPM file you download, and then upload to the BIG-IP system using the iControl/iApp LX framework. Alternatively, you can see the Quickstart section.

Download the RPM file

The first task is to download the latest RPM file. Go to the F5 Cloud Failover Extension site on GitHub, and download the latest (highest numbered) RPM file, found in the Release section.

Verify the integrity of the Cloud Failover Extension RPM package

F5 Networks provides a checksum for each Cloud Failover Extension release so you can confirm the integrity of the RPM package.

You can get a checksum for a particular RPM by running one of the following commands, depending on your operating system:

  • Linux: sha256sum <path_to_rpm>
  • Windows using CertUtil: CertUtil –hashfile <path_to_rpm> SHA256

You can compare the checksum produced by that command against the .sha256 file (


Do not continue if the hash does not match.

Upload and install the Cloud Failover Extension file on the BIG-IP

After you download the RPM, you must upload and then install it on your BIG-IP system. You can use the BIG-IP Configuration utility or cURL (alternatively, you can use SCP to upload the file to /var/config/rest/downloads, but you will still have to use the cURL command to install the package). Use only one of the following procedures.

Install CFE using the BIG-IP Configuration utility

From the Configuration utility:

  1. Click iApps > Package Management LX.
  2. Click the Import button.
  3. Click Choose File and then browse to the location you saved the RPM file, and then click Ok.
  4. Click the Upload button.

Install CFE using cURL from the Linux shell

If you want to use cURL to install Cloud Failover Extension, use the following command syntax.

  1. Set the file name and the BIG-IP IP address and credentials, making sure you use the appropriate RPM file name, including build number, and BIG-IP credentials.

    IP=IP address of BIG-IP
  2. Copy the following commands to upload the package. If you uploaded the RPM by another method, you can skip these commands.

    LEN=$(wc -c $FN | cut -f 1 -d ' ')
    curl -kvu $CREDS https://$IP/mgmt/shared/file-transfer/uploads/$FN -H 'Content-Type: application/octet-stream' -H "Content-Range: 0-$((LEN - 1))/$LEN" -H "Content-Length: $LEN" -H 'Connection: keep-alive' --data-binary @$FN
  3. Copy the following commands to install the package.

    curl -kvu $CREDS "https://$IP/mgmt/shared/iapp/package-management-tasks" -H "Origin: https://$IP" -H 'Content-Type: application/json;charset=UTF-8' --data $DATA


To provide feedback on Cloud Failover Extension or this documentation, you can file a GitHub Issue.