Brocade Communications Systems FastIron X Series User Manual

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 congurable cache
or table sizes. Refer to the section "Displaying system parameter default values" in the FastIron Ethernet Switch Platform and
Layer 2 Switching Conguration Guide.
To increase the maximum number of static ARP table entries you can congure on a Brocade Layer 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 conguration to the startup-cong le and reload the software after changing the static ARP table size to
place the change into eect.
Syntax: system-max ip-static-arp num
The num variable 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.
TABLE 6 Static ARP entry support
Default maximum Congurable minimum Congurable maximum
FastIron X Series and Brocade FCX Series devices
512 512 6000
ICX 6430 and ICX 6450 devices
256 64 1024
ICX 6610
512 512 6000
Enabling learning gratuitous ARP
Learning gratuitous ARP enables Brocade Layer 3 devices to learn ARP entries from incoming gratuitous ARP packets from the hosts
which are directly connected. This help achieve faster convergence for the hosts when they are ready to send trac.
A new ARP entry is created when a gratuitous ARP packet is received. If the ARP is already existing, it will be updated with the new
content.
To enable learning gratuitous ARP, enter the following command at the device conguration level.
Brocade (config)# ip arp learn-gratuitous-arp
Syntax: [no] ip arp learn-gratuitous-arp
The no form of the command disables learning gratuitous ARP from the device.
Use the show run command to see whether ARP is enabled or disabled. Use the show arp command to see the newly learned ARP
entries.
Conguring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
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Brocade Communications Systems FastIron X Series Specifications

General

Brand	Brocade Communications Systems
Model	FastIron X Series
Category	Switch
Language	English