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 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 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
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
Configurable minimum
Configurable 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 traffic.
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 configuration 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.
Configuring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04
57
Summary of Contents for FastIron SX 1600
Page 2: ...FastIron Ethernet Switch Layer 3 Routing 2 53 1003627 04 ...
Page 16: ...FastIron Ethernet Switch Layer 3 Routing 16 53 1003627 04 ...
Page 20: ...FastIron Ethernet Switch Layer 3 Routing 20 53 1003627 04 ...
Page 142: ...FastIron Ethernet Switch Layer 3 Routing 142 53 1003627 04 ...
Page 150: ...FastIron Ethernet Switch Layer 3 Routing 150 53 1003627 04 ...
Page 200: ...FastIron Ethernet Switch Layer 3 Routing 200 53 1003627 04 ...
Page 214: ...FastIron Ethernet Switch Layer 3 Routing 214 53 1003627 04 ...
Page 350: ...FastIron Ethernet Switch Layer 3 Routing 350 53 1003627 04 ...
Page 476: ...FastIron Ethernet Switch Layer 3 Routing 476 53 1003627 04 ...
Page 588: ...FastIron Ethernet Switch Layer 3 Routing 588 53 1003627 04 ...