Brocade FastIron WS Hardware Installation Guide
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53-1002188-01
Configuring IP addresses
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DRAFT: BROCADE CONFIDENTIAL
Assigning an IP address to a loopback interface
Loopback interfaces are always up, regardless of the states of physical interfaces. You can
configure up to eight loopback interfaces.
You can add up to 24 IP addresses to each loopback interface.
To add a loopback interface, enter commands such as those shown in the following example.
FWSSwitch(config)# exit
FWSSwitch(config)# int loopback 1
FWSSwitch(config-lbif-1)# ip address 10.0.0.1/24
Syntax: interface loopback
<num>
The <
num
> parameter specifies the virtual interface number. You can specify from 1 to the
maximum number of virtual interfaces supported on the device. To display the maximum number
of virtual interfaces supported on the device, enter the show default values command. The
maximum is listed in the System Parameters section, in the Current column of the virtual-interface
row.
Assigning an IP address to a virtual routing interface
A virtual interface is a logical port associated with a Layer 3 Virtual LAN (VLAN) configured on a
Base Layer 3 Switch. You can configure routing parameters on the virtual interface to enable the
Layer 3 Switch to route protocol traffic from one Layer 3 VLAN to the other, without using an
external router.
This section describes how to configure an IP address on a virtual interface.
NOTE
The switch uses the lowest MAC address on the device (the MAC address of port 1 or 0/1/1) as the
MAC address for all ports within all virtual interfaces you configure on the device.
To add a virtual interface to a VLAN and configure an IP address on the interface, enter commands
such as the following.
FWSSwitch(config)# vlan 2 name IP-Subnet_1.1.2.0/24
FWSSwitch(config-vlan-2)# untag 0/1/1 to 0/1/4
FWSSwitch(config-vlan-2)# router-interface ve1
FWSSwitch(config-vlan-2)# interface ve1
FWSSwitch(config-vif-1)# ip address 1.1.2.1/24
The first two commands in this example create a Layer 3 protocol-based VLAN name
“IP-Subnet_1.1.2.0/24” and add a range of untagged ports to the VLAN. The router-interface
command creates virtual interface 1 as the routing interface for the VLAN. The last two commands
change to the interface configuration level for the virtual interface and assign an IP address to the
interface.
Syntax: router-interface ve
<num>
Syntax: interface ve
<num>
Deleting an IP address
To delete an IP address, enter a command such as the following.
FWSSwitch(config-if-0/1/1)# no ip address 1.1.2.1
