7.3 What is the difference between NetWare 5 licenses and NetWare 6 and later licenses?

NetWare 5 uses the Server Connection License (SCL) model while NetWare 6 and later uses the User Access License (UAL) model. The SCL model consumes a license unit for every resource consumed in the tree and is concurrent. The UAL model consumes a license unit when a user logs in to the tree and does not consume additional units for resources consumed in the tree.

NetWare 5, NetWare 6, NetWare 6.5 servers with their associated licenses can coexist in the same eDirectory™ tree.