Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 57)

Static entries are useful in cases where you want to pre-configure an entry for a device that is not
connected to the Layer 3 switch, 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.
NOTE
You cannot create static ARP entries on a Layer 2 switch.
The maximum number of static ARP entries you can configure depends on the software version running
on the device.
To create a static ARP entry, enter a command such as the following.
device(config)# arp 1 10.53.4.2 0000.0054.2348 ethernet 1/2
Syntax: arp num ip-addr mac-addr ethernet port
The num parameter specifies the entry number. You can specify a number from 1 up to the maximum
number of static entries allowed on the device.
The ip-addr parameter specifies the IP address of the device that has the MAC address of the entry.
The mac-addr parameter specifies the MAC address of the entry.
Changing the maximum number of entries the static ARP table can hold
NOTE
The basic procedure for changing the static ARP table size is the same as the procedure for changing
other configurable cache or table sizes. Refer to the section "Displaying system parameter default
values" in the FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide .
To increase the maximum number of static ARP table entries you can configure on a BrocadeLayer 3
switch, enter commands such as the following at the global CONFIG level of the CLI.
device(config)# system-max ip-static-arp 1000
device(config)# write memory
device(config)# end
device# reload
NOTE
You must save the configuration to the startup-config file and reload the software after changing the
static ARP table size to place the change into effect.
Syntax: system-max ip-static-arp num
The num parameter indicates the maximum number of static ARP entries and can be within one of
these ranges, depending on the software version running on the device.
Static ARP entry support TABLE 6
Default maximum Configurable minimum Configurable maximum
FastIron X Series and Brocade FCX Series devices
512 512 6000
IP Configuration
FastIron Ethernet Switch Layer 3 Routing Configuration Guide 57
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