Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 516

Configuring Static ARP Entries ARP dynamically maps the MAC and IP addresses, and while most network host support dynamic mapping, you can configure an ARP entry (called a static ARP) for the ARP cache. To configure a static ARP entry, use the following command. • Configure an IP address and MAC address mapping for an interface. CONFIGURATION mode arp ip-address mac-address interface - ip-address: IP address in dotted decimal format (A.B.C.D). - mac-address: MAC address in nnnn.nnnn.nnnn format. - interface: enter the interface type. * For the Management interface, enter the keyword ManagementEthernet then the slot/port information. The slot range is from 0 to 1 and the port range is 0. * For a Port Channel interface, enter the keywords portchannel then a number. The range is from 1 to 128. * For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/ port information. * For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information. * C1048P (port extender) 1 Gigabit Ethernet interfaces use the following command syntax: interface peGigE pe-id/pe-stack-unit-id/port-number where pe-id is a port-extender ID number from 0 to 255 pe-stack-unit-id is a PE stack-unit number from 0 to 7 Example of the show arp Command These entries do not age and can only be removed manually. To remove a static ARP entry, use the no arp ip-address command. To view the static entries in the ARP cache, use the show arp static command in EXEC privilege mode. Dell#show arp Protocol Address Age(min) Hardware Address Interface VLAN CPU Internet 10.1.2.4 17 08:00:20:b7:bd:32 Ma 1/0 - CP Dell# Configuring ARP Inspection Trust Use the arp-inspection-trust command to specify a port or an interface as trusted so that ARP frames are not validated against the binding table. By default, this feature is disabled. • Enable ARP learning via gratuitous ARP. INTERFACE Mode 516 IPv4 Routing