D-Link DXS-5000-54S Emulator - Page 637

5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide No command configures the default ARP cache size. arp cachesize platform specific integer value no arp cachesize Parameters platform specific integer value Default The default is None. Command Mode Global Config Indicates the cache size value as an integer. 7-3 arp dynamicrenew Enable the ARP component to automatically renew dynamic ARP entries when timed out. The system determines whether to retain or delete timed out ARP entries. If the entry was used to forward data packets, the system renews the entry by sending a neighbor an ARP request. If a response is received, the age of the entry is reset to 0 without removing the entry from the hardware. Traffic to the host continues to be forwarded in hardware without interruption. lf the entry is not used to forward data packets, the entry is deleted from the cache, unless the dynamic renew option is enabled. When dynamic renew is enabled, the system sends an ARP request to renew the entry. If the entry is not renewed, it is removed from the hardware and subsequent data packets to the host trigger an ARP request. Traffic to the host may be lost until the router receives an ARP reply from the host. Gateway entries, entries for a neighbor router, are always renewed. The dynamic renew option only applies to host entries. No command prevents dynamic ARP entries from renewing when they time out. arp dynamicrenew no arp dynamicrenew Parameters None Default The default is Disabled. Command Mode Privileged EXEC 631