• Manual mode—No scheduler job is created. The administrator has to run the autozone --update command
each time a new device is connected to a switch for the device to be added to the zoning configuration.
Guidelines and Limitations for Autozone
• Works only on Cisco MDS 9132T, MDS 9148T, and MDS 9396T fabric switches.
• Works only on single-switch fabrics.
• Works only for ports that are logged on VSAN 1. If the administrator moves ports to other VSANs,
Autozone does not move them back into VSAN 1 or zone them.
• If Autozone detects an active zoneset on VSAN 1, Autozone exits with a message and no zones are
created.
• If Autozone detects an Inter-Switch Link (ISL) on VSAN 1, Autozone exits with a message, and no
zones are created.
• The Autozone feature considers only devices that are registered as FC4 type init or target. Any other
types are ignored and must be zoned manually by the administrator.
• The Autozone feature zones a maximum of 100 devices.
• The Autozone feature does not support Smart Zoning.
• Avoid enabling the Autozone feature if you want to use the Inter VSAN Routing (IVR) feature.
• Avoid creating a manual zone of the name format AUTOZONE_<SwitchSerialNumber>_<number>
because this is the format that is used by Autozone to create zone names. Autozone will delete zones
with this name format when you use the autozone --delete command.
• When Autozone is first run in automatic mode, it creates a scheduler job called
AUTOZONE_SCHEDULER_JOB and a schedule called AUTOZONE_SCHEDULER_SCHEDULE
to run the autozone --update command every 5 minutes. If either the scheduler job or schedule is deleted
by the administrator, then periodic zone updates by Autozone will cease.
• When Autozone is configured in automatic mode and you execute the show accounting log command,
there will be entries with an empty command field each time the Autozone scheduler job is run. This is
expected.
• Cisco NX-OS releases that support the Autozone feature creates a CLI alias named autozone when the
switch boots. Even if the autozone command is not run, this configuration change triggers the "Unsaved
configuration" warning during an upgrade. Ensure that you save the configuration to prevent this message
during future upgrades. As a best practice, we recommend that you copy the running configuration to
the startup configuration on the switch before upgrading.
• If you have the Autozone feature enabled and you are downgrading from Cisco MDS NX-OS Release
8.3(1) to earlier releases that do not support the Autozone feature, the following behaviors are seen:
• The autozone CLI alias command is available, but when you execute the command, it fails. You
may delete the autozone CLI alias name using the cli alias name autozone command.
• The Autozone scheduler job continues to check for new device logins every 5 minutes, but fails if
any new device logins are detected and generates a syslog. Therefore, we recommend that you
disable Autozone before downgrading.
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
45
Configuring and Managing Zones
Guidelines and Limitations for Autozone
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