Technical data

Switching and Routing
May 2012 © 2012 Brocade Communications Systems, Inc. 2 - 23
NOTE: You can add static ARP entries regardless of whether IP forwarding is enabled. On software release
08.x.xxR, you must create the static MAC that corresponds to the static ARP before creating a static ARP entry.
Clearing the ARP Cache
To remove all data from the ARP cache, enter the following commad:
ServerIron# clear arp
To clear all ARP entries for port 2 on the module in slot 3, enter commands such as the following:
ServerIron# clear arp ethernet 3/2
Syntax: clear arp [ethernet <num> | mac-address <xxxx.xxxx.xxxx> [<mask>] | <ip-addr> [<ip-mask>]]
Specify the MAC address mask as “f”s and “0”s, where “f”s are significant bits. Specify IP address masks in
standard decimal mask format (for example, 255.255.0.0).
NOTE: The clear arp command clears learned ARP entries but does not remove any static ARP entries.
Clearing the IP Cache
To remove all entries from the IP cache, enter the following command:
ServerIron# clear ip cache
Syntax: clear ip cache
Clearing the MAC Address Table
To remove all entries in the MAC address table, enter the following commad:
ServerIron#clear mac-address
Syntax: clear mac-address
Setting System Max
Use system-max <option> to modify the default settings for parameters that use system memory.
The configurable parameters and their defaults and maximums differ depending on the device.
Issue the show default values command to display the configurable parameters, their defaults. If you specify
default but not the optional values, the default states for parameters that can either be enabled or disabled are
displayed. If you also specify values, the default values for parameters that take a numeric value are displayed.
To increase the number of real servers available on the ServerIron, enter commands such as the following:
ServerIron(config)#system-max l4-real 2048
To increase the number of virtual servers available on the ServerIron, enter commands such as the following:
ServerIron(config)#system-max l4-virtual-server 512
To increase the number of TCP/UDP ports available on the ServerIron, enter a command such as the following:
ServerIron(config)#system-max l4-server-port 4095
To increase the number of TCP buffers available on the ServerIron, enter a command such as the following:
ServerIron(config)#system-max tcp-buffer 2048
To increase the number of SNMP views available on the ServerIron, enter a command such as the following: