> # About Zone Sets

> Zones provide a method for specifying access control. Zone sets are a grouping of zones to enforce access control in the fabric.

> Zone sets are configured with the names of the member zones and the VSAN (if the zone set is in a configured VSAN).

> Zone Set Distribution—You can distribute full zone sets using one of two methods: one-time distribution or full zone set distribution.

> Zone Set Duplication—You can make a copy of a zone set and then edit it without altering the original zone set. You can copy an active zone set from the bootflash: directory, volatile: directory, or slot0, to one of the following areas:

> - To the full zone set
> - To a remote location (using FTP, SCP, SFTP, or TFTP)

> The active zone set is not part of the full zone set. You cannot make changes to an existing zone set and activate it, if the full zone set is lost or is not propagated.

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