Brocade Communications Systems ICX 7250, Hardware Installation Manual

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You also can enter the IP address and mask in CIDR format.
device># ip address 10.45.6.1/24
Assigning an IP address to a loopback interface
Loopback interfaces are always up, regardless of the states of physical interfaces. They can add stability to the network because they are
not subject to route flap problems that can occur due to unstable links between a Layer 3 device and other devices. You can configure
up to four loopback interfaces on a Layer 3 device.
You can add up to 24 IP addresses to each loopback interface.
NOTE
If you configure the device to use a loopback interface to communicate with a BGP4 neighbor, you must also configure a
loopback interface on the neighbor and configure the neighbor to use that loopback interface to communicate with the Brocade
device.
To add a loopback interface, enter the interface loopback
num
and ip address
num
commands similar to the following example.
device(config)# exit
device(config)# interface loopback 1
device(config)# ip address 10.0.0.1/24
You can specify from 1 through the maximum number of virtual interfaces supported on the device by using the interface loopback
num
command.. To display the maximum number of virtual interfaces supported on the device, enter the show default values command.
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 Layer 3 device. You can configure
routing parameters on the virtual interface to enable the Layer 3 device to route protocol traffic from one Layer 3 VLAN to the other,
without using an external router.
NOTE
The device uses the lowest MAC address on the device (the MAC address of port 1 or 1/1/1) as the MAC address for all ports
within all virtual interfaces you configure on the device.
Enter commands similar to the following to add a virtual interface to a VLAN and configure an IP address on the interface.
device(config)# vlan 2 name IP-Subnet_10.1.2.1/24
device(config-vlan-2)# untag 1/1/1 to 1/1/4
device(config-vlan-2)# router-interface ve1
device(config-vlan-2)# interface ve1
device(config-vif-1)# ip address 10.1.2.1/24
The first two commands in this example create a Layer 3 protocol-based VLAN named "IP-Subnet_10.1.2.1/24" 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.
Deleting an IP address
Enter a command similar to the following to delete an IP address.
device(config-if-1/1/1)# no ip address 10.1.2.1
This command deletes IP address 10.1.2.1. You do not need to enter the subnet mask.
To delete all IP addresses from an interface, enter the following command.
device(config-if-1/1/1)# no ip address *
Configuring the Device
Brocade ICX 7250 Switch Hardware Installation Guide
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