Dell Brocade DCX, Configuration Manual, Page: 226 / 1436

154 BigIron RX Series Configuration Guide
53-1001810-01
Configuring IP parameters
7
Configuring IP addresses
You can configure an IP address on the following types of the device interfaces:
•
Ethernet port
•
Virtual routing interface (also called a Virtual Ethernet or “VE”)
•
Loopback interface
By default, you can configure up to 24 IP addresses on each interface.
Also, the CAM can hold up to 256,000 IP address entries.
NOTE
Once you configure a virtual routing interface on a VLAN, you cannot configure Layer 3 interface
parameters on individual ports in the VLAN. Instead, you must configure the parameters on the
virtual routing interface itself.
Also, once an IP address is configured on an interface, the hardware is programmed to route all IP
packets that are received on the interface. Consequently, all IP packets not destined for this device’s
MAC address will not be bridged but dropped.
The device supports both classical IP network masks (Class A, B, and C subnet masks, and so on)
and Classless Interdomain Routing (CIDR) network prefix masks:
•
To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.
•
To enter a prefix network mask, enter a forward slash (/) and the number of bits in the mask
immediately after the IP address. For example, enter “209.157.22.99/24” for an IP address
that has a network mask with 24 significant bits (ones).
By default, the CLI displays network masks in classical IP address format (example:
255.255.255.0). You can change the display to prefix format. Refer to
“Changing the network mask
display to prefix format” on page 156.
Assigning an IP address to an Ethernet port
To assign an IP address to port 1/1, enter the following commands.
BigIron RX (config)# interface ethernet 1/1
BigIron RX (config-if-e1000-1/1)# ip address 192.45.6.1 255.255.255.0
NOTE
You also can enter the IP address and mask in CIDR format, as follows.
BigIron RX (config-if-e10000-1/1)# ip address 192.45.6.1/24
Syntax: interface ethernet <slot/port>
Syntax: [no] ip address <ip-addr> <ip-mask> | <ip-addr>/<mask-bits> [ospf-ignore | ospf-passive
| secondary]