User`s guide

Chapter 3. Implementing the INRANGE FC/9000 Fibre Channel Director 241
When creating hard zones, all port groups in a particular hard zone must be
adjoining. In Figure 3-56 we show an example of an incorrect implementation.
Figure 3-56 Violating the adjoining rule
The upper port group of Hard Zone A has no adjoining contact to the remaining
two port groups of Hard Zone A. This is a violation of the hard zoning rules, and
therefore it is not possible to create a hard zone layout such as this.
3.4.2 Understanding INRANGE broadcast zoning
Broadcast zones focus the distribution of broadcast messages to only those
targets that need to receive them. This results in reduced fabric traffic and
eliminates unnecessary message processing. Broadcast zones can overlap and
are also assigned by director ports.
The granularity in which broadcast zones are built is one director port.
However, broadcast zoning is used for IP networking. Storage area networking
environments do not exploit this kind of zoning.