Patent attributes
An ARP table management system maps destination addresses to next hop addresses using ARP entry and egress tables and, when the ARP egress table is full, performs those mappings in double-entries in the ARP entry table. When a second destination address is identified that is associated with a first next hop address mapped to a first destination address in a first double-entry in the ARP entry table, a second next hop address is identified in the ARP egress table that is mapped to only one third destination address in the ARP entry table. The third destination address is then mapped to the second next hop address in a second double-entry in the ARP entry table, and each of the first destination address and the second destination address in respective ARP entry rows in the ARP entry table are mapped to the first next hop address in the ARP egress table.
