Configuring IP addresses
You can configure an IP address on the following types of Layer 3 switch interfaces:
- Ethernet port
- Virtual routing interface (also called a Virtual Ethernet or "VE")
- Loopback interface
- GRE tunnels
By default, you can configure up to 24 IP addresses on each interface.
- When you configure an IPv4 address on a device, a syslog appears stating that the IP address has been added.
- If you reconfigure the same IP address or a different IP address on the device, a syslog appears stating that the IP address has been added.
- The syslog does not state that the existing IP address was replaced with a new IP address.
You can increase this amount to up to 128 IP subnet addresses per port by increasing the size of the ip-subnet-port table.
Refer to the section "Displaying system parameter default values" in the Brocade FastIron Platform and Layer 2 Switching Configuration Guide.
Brocade devices support 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 "10.157.22.99 255.255.255.0" 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 "10.157.22.99/24" 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 (for example, 255.255.255.0). You can change the display to prefix format.