A snapshot is not bootable. However, you can clone a new BE from an existing snapshot. Then you can activate and boot that new BE.
Before You Begin
Ensure that your role has the appropriate rights profiles to perform this procedure. See Using Rights Profiles to Administer Boot Environments.
$ beadm create -e snapshot-name NewName
As previously indicated, the snapshot name is in the format BEFMRI@snapshotdescription. For example:
$ beadm create -e BE1@now BE2
$ beadm activate BE2
At the next system reboot, BE2 will be used and becomes the default BE.