Description: This table allows learning domains to be created, modified, and deleted. There can be from 1 to 8 learning domains.

A learning domain is a collection of port groups (or bridge ports) which share a learning database. Every bridge port is a member of precisely one learning domain. A MAC address that is seen on one port of the learning domain will be taught to the other ports in the learning domain, but not to ports in other learning domains, unless a target learning domain has been set up.

Among other things, this allows for the possbility that a single MAC address may be learned on several different ports - as long as they are in separate learning domains.

There are a maximum of 8 learning domains, including the default learning domain. The default learning domain is the set of all bridge ports that do not belong to a management defined learning domain.