Licensing Requirements; Other Configuration Guidelines; Setup And Configuration Task List - H3C S5830V2 Configuration Manual

An IRF fabric has only one IRF domain ID. You can change the IRF domain ID by using the following
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commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF domain IDs
configured by using these commands overwrite each other.
• LACP MAD handles collisions differently than BFD MAD, ARP MAD, and ND MAD. To avoid
conflicts, do not enable LACP MAD together with any of those mechanisms in an IRF fabric.
However, you can configure BFD MAD, ARP MAD, and ND MAD together in an IRF fabric for
prompt IRF split detection.
To prevent a port from being shut down when the IRF fabric transits to the Recovery state, use the
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mad exclude interface command. To bring up ports in a Recovery-state IRF fabric, use the mad
restore command instead of the undo shutdown command. The mad restore command activates
the Recovery-state IRF fabric.

Licensing requirements

For a license-based feature to run correctly on an IRF fabric, make sure the licenses installed for the
feature on all member devices are the same. For more information about feature licensing, see
Fundamentals Configuration Guide.

Other configuration guidelines

• If a subordinate device uses the same next-startup configuration file name as the master device, the
file might be overwritten depending on the configuration file management settings. To continue to
use the configuration file after removing the device from the IRF fabric, back up the file before setting
up the IRF fabric.
Strictly follow the setup procedure described in
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fabric, identify IRF physical interfaces, connect IRF member devices, and configure basic settings.
If two IRF fabrics have the same bridge MAC address, they cannot merge unless you change the
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bridge MAC address of one IRF fabric.
Assign each member a unique IRF member ID to make sure they can merge. You must reboot the
•
members to validate the IRF member ID settings.
Assign the highest member priority to the device you want to use as the master.
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• Save any configuration you have made to the startup configuration file before you reboot the IRF
member devices.

Setup and configuration task list

H3C recommends the basic IRF setup procedure in
member device. After the IRF fabric is set up, you can access the IRF fabric to manage its member devices
as if they were one device.
"Setup and configuration task
Figure 9. Perform the tasks in this figure on each
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list" to plan the IRF