Adding A Static Arp Entry; Modifying And Displaying Layer 3 System Parameter Limits; Layer 3 Configuration Notes - Brocade Communications Systems ICX 6650 Configuration Manual

Adding a static ARP entry

The next-hop-ip-addr variable is the IP address of the next hop router (gateway) for the route.
The metric variable specifies the cost of the route and can be a number from 1 through 16. The
default is 1. The metric is used by RIP. If you do not enable RIP, the metric is not used.
The tag num parameter specifies the tag value of the route. The possible value is from 0 through
4294967295. The default value is 0.
NOTE
You cannot specify null0 or another interface as the next hop in the base Layer 3 image.
Adding a static ARP entry
Static entries are useful in cases where you want to pre-configure an entry for a device that is not
connected to the Brocade device, or you want to prevent a particular entry from aging out. The
software removes a dynamic entry from the ARP cache if the ARP aging interval expires before the
entry is refreshed. Static entries do not age out, regardless of whether the Brocade device receives
an ARP request from the device that has the entry address. The software places a static ARP entry
into the ARP cache as soon as you create the entry.
To add a static ARP entry, enter a command such as the following at the global CONFIG level of the
CLI.
Brocade(config)#arp 1 192.168.22.3 0000.00bb.cccc ethernet 1/1/3
This command adds a static ARP entry that maps IP address 192.168.22.3 to MAC address
0000.00bb.cccc. The entry is for a MAC address connected to Brocade port 3.
Syntax: [no] arp num ip-addr mac-addr ethernet port
The num variable specifies the entry number. You can specify a number from 1 up to the maximum
number of static entries allowed on the device. You can allocate more memory to increase this
amount. To do so, enter the system-max ip-static-arp num command at the global CONFIG level of
the CLI.
The ip-addr variable specifies the IP address of the device that has the MAC address of the entry.
The mac-addr variable specifies the MAC address of the entry.
The ethernet port parameter specifies the port number attached to the device that has the MAC
address of the entry. Specify the port variable in stack-unit/slotnum/portnum format
The clear arp command clears learned ARP entries but does not remove any static ARP entries.

Modifying and displaying Layer 3 system parameter limits

This section shows how to view and configure some of the Layer 3 system parameter limits.

Layer 3 configuration notes

Changing the system parameters reconfigures the device memory. Whenever you reconfigure the
memory on a Brocade device, you must save the change to the startup-config file, and then reload
the software to place the change into effect.
134 Brocade ICX 6650 Layer 3 Routing Configuration Guide
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