H3C Technologies H3C S12500-X Series Switches - Manual (Page 90)

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Default zone
The N_Ports in zones of the active zone set are part of the active zone set. Registered N_Ports that are not
in the active zone set automatically become part of the default zone.
If members of the default zone are allowed to access each other, the default zone can be considered to
be part of the active zone set, and it participates in access control among N_Ports. Otherwise, the default
zone is not in the active zone set and does not participate in access control among the N_Ports.
Distributing zones
Distributing zones indicates that a device distributes its active zone set or zone database to all the other
devices in the same fabric. The distributing device is called a "manager switch," and all the other devices
are called "managed switches."
The following distribution types are provided:
• Complete distribution—Distributes both the active zone set and zone database.
• Incomplete distribution—Distributes only the active zone set.
Methods of triggering a distribution
Trigger a distribution by using one of the following methods:
• Activate a zone set as the active zone set on a switch by using the zoneset activate command. At the
time of activation, the active zone set is distributed to all the other switches.
This method determines whether to carry the zone database according to the configured
distribution type.
• Distribute the active zone set and zone database directly by using the zoneset distribute command
on a switch.
This method performs a complete distribution irrespective of the configured distribution type.
Managed switches replace their respective active zone sets or zone databases with the received data,
regardless of the distribution types configured on them. For example, if a managed switch receives the
active zone set and zone database, it replaces its local active zone set and zone database with them
regardless of whether its distribution type is complete distribution.
Zone distribution process
The manager switch completes data synchronization with each managed switch by using the following
packets:
• Acquire Change Authorization (ACA)
• Stage Fabric Configuration Update (SFC)
• Update Fabric Configuration (UFC)
• Release Change Authorization (RCA)
These types of packets implement locking, data synchronization, submission, and unlocking processes,
respectively. These processes make sure only one device distributes data as the manager switch when
multiple users trigger a data distribution by using commands on different devices at the same time.