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[MX] When a MAC is aged, it will flush any matching ARP entries for IRB interface

  [KB34816] Show Article Properties


For ARP on IRB interface, when the MAC hits it's age time, an ​ARP request is triggered.

For example, if there is no traffic for the MAC table, ARP requests are sent out every 300 seconds. This is due to the default 'mac-table-aging-time' of 300 seconds, causing the aged out MAC to flush matching ARP entries.

This behavior is working as expected.

This behavior is working as expected for the IRB interface.

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