Configuring Distributed IP ARP Mode

The distributed IP ARP feature is available only on BlackDiamond X8 and 8800 series switches. The distributed IP ARP feature provides higher IP ARP scaling by distributing IP ARP forwarding information to only the I/O module to which each IP host is connected. This feature is off by default to match the operation in ExtremeXOS releases prior to 12.5. When this feature is off, complete IP ARP information for all destinations is stored on all modules, reducing the available space for unique destinations.

To activate or deactivate the distributed IP ARP feature, use the following command:

configure iparp distributed-mode [on | off]

Note

The switch does not use the specified feature configuration until the next time the switch boots. If you are using load sharing or access-lists with action "redirect-port" or "redirect-port-list", refer to the ExtremeXOS Command Reference command description for the above command for information on these restrictions.
To display the configured and current states for this feature, use the following command:
show iparp {ip_addr | mac | vlan vlan_name | permanent} {vr vr_name}
To display distributed IP ARP mode statistics when this feature is activated, use the following command:
show iparp distributed-mode statistics { slot [ slot| all ] }

Published March 2020prev | next

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