Cisco Catalyst 8540 MSR Technical Information download pdf (Page 8)

Chapter 3 Initially Configuring the ATM Switch Router

Configuring the IP Interface

3-8

ATM Switch Router Software Configuration Guide

78-6277-03, Cisco IOS Release 12.0(13)W5(19)

Note These IP connections are used only for network management.

To configure the switch to communicate via the Ethernet interface, provide the IP address and subnet

mask bits for the interface.

This section includes the following:

• Configuring IP Address and Subnet Mask Bits on page 3-8

• Testing the Ethernet Connection on page 3-9

Configuring IP Address and Subnet Mask Bits

Define subnet mask bits as a decimal number between 0 and 22 for Class A addresses, between 0 and 14

for Class B addresses, or between 0 and 6 for Class C addresses. Do not specify 1 as the number of bits

for the subnet field. That specification is reserved by Internet conventions.

To configure the IP address, perform the following steps, beginning in global configuration mode:

Note Since release 12.0(1a)W5(5b) of the ATM switch software, addressing the interface on the

processor (CPU) has changed. The ATM interface is now called atm 0, and the Ethernet

interface is now called ethernet 0. The old formats (atm 2/0/0 and ethernet 2/0/0) are still

supported.

Example

The following example shows how to configure interface ethernet 0 with IP address 172.20.40.93 and

subnetwork mask 255.255.255.0:

Switch(config)# interface ethernet 0

Switch(config-if)# ip address 172.20.40.93 255.255.255.0

Displaying the IP Address

To display the IP address configuration, use the following privileged EXEC commands:

Command Purpose

Step 1

Switch(config)# interface ethernet 0

Switch(config-if)#

Selects the interface to be configured.

Step 2

Switch(config-if)# ip address ip-address mask Configures the IP and subnetwork address.

Command Purpose

show interfaces ethernet 0 Displays the Ethernet interface IP address.

more system:running-config Shows the physical layer scrambling

configuration.

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Cisco Catalyst 8540 MSR Technical Information Page 8