H3C Technologies H3C S12500 Series Switches - Manual (Page 29)

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To set the operating mode of a device to IRF mode:
Step Command Remarks
1. Enter system view. system-view N/A
2. Set the operating mode to
IRF mode.
chassis convert mode irf
The default operating mode is
standalone mode.
After you change the operating mode, the device automatically reboots to validate the change.
During the reboot, you can choose to have the system convert the startup configuration file automatically
to prevent some slot- or interface-related configurations from becoming invalid. For example, the system
can convert the slot slot-number parameter set in standalone mode to the chassis chassis-number slot
slot-number parameter in IRF mode, and add the chassis ID in an interface number.
To restore the standalone mode, use the undo chassis convert mode irf command.
TIP:
IRF generates packets on a device in IRF mode even if the device does not form an IRF fabric with any other
device. To protect system resources, set a device to operate in standalone mode after removing it from an
IRF fabric.
Accessing the IRF fabric
The IRF fabric appears as one device after it is formed. You configure and manage all IRF members at the
CLI of the global active MPU. All settings you made are automatically propagated to the IRF members.
When you log in to an IRF fabric, you are placed at the CLI of the global active MPU, regardless of at
which member device you are logged in. After that, you can access the CLI of a standby MPU to execute
a limited set of maintenance commands.
Accessing the global active MPU of the IRF fabric
Access an IRF fabric in one of the following ways:
• Local login—Log in through the AUX or console port of a member device.
• Remote login—Remotely log in at a Layer 3 Ethernet interface on any member devices by using
methods including Telnet, the Web, or SNMP.
When you log in to an IRF fabric, you are placed at the CLI of its global active MPU, regardless of at
which member device you are logged in. The global active MPU of the IRF fabric is the configuration and
control center of the IRF fabric. You make configuration for the IRF fabric on the global active MPU, and
the IRF fabric synchronizes the configurations to all standby MPUs in the virtual IRF device.
Accessing a standby MPU in the IRF fabric
You can log in to the CLI of a standby MPU for maintenance or debugging. When you change from the
global active MPU's CLI to the standby MPU's CLI, you are placed in user view and the command prompt
changes to , for example, . You can
execute the following commands at a standby MPU's CLI:
• display