Configuring the Switch with the CLI-Based Setup Program

Table Of Contents

Configuring the Switch with the CLI-Based Setup Program

Taking Out What You Need

Connecting to a Power Source

Connecting to the Console Port

Starting the Terminal-Emulation Software

Entering the Initial Configuration Information

IP Settings

Completing the Setup Program

Configuring the Switch with the CLI-Based Setup Program

This chapter provides a command-line interface (CLI)-based setup procedure for a standalone switch. For product overview information, see Chapter 2, "Overview." Before connecting the switch to a power source, review the safety warnings in Chapter 3, "Installation." For procedures on connecting the switch to a power source, rack-mounting your switch, or connecting to the Ethernet ports, see Chapter 3, "Installation."

Caution If you are installing your switch in a hazardous environment, review the safety warnings in Chapter 4, "Installation in a Hazardous Environment." For installation procedures for a hazardous environment, see Chapter 4, "Installation in a Hazardous Environment."

These steps describe how to do a simple installation:

1. Taking Out What You Need

2. Connecting to the Console Port

3. Starting the Terminal-Emulation Software

4. Connecting to a Power Source

5. Entering the Initial Configuration Information

Taking Out What You Need

Remove the items shown in Figure 1-1 from the shipping container:

Figure 1-1 Catalyst 2955 Switch and Adapter Cable

1

Catalyst 2955 switch

2

RJ-45-to-DB-9 adapter cable

Note You need to provide the Category 5 straight-through cables to connect the switch ports to other Ethernet devices.

Connecting to a Power Source

For instructions on connecting the Catalyst 2955 switch to direct current (DC) power, see the "Wiring the DC Power Source" section on page 3-17. For instructions on connecting the Catalyst 2955 switch to alternating current (AC) or DC power by using the optional power converter, see the "Connecting the Switch to the Power Converter" section on page 3-29.

After the power is applied, the switch automatically begins POST, a series of tests that verifies that the switch functions properly.

Note The uplink port status LEDs provide system and status information during POST. On the Catalyst 2955C-12 and 2955S-12, the uplink ports are labeled 13 and 14. On the Catalyst 2955T-12, the uplink ports are labeled 1 and 2.

When the Catalyst 2955C-12 and 2955S-12 begin POST:

•Uplink port 13 LED is amber.

•Uplink port 14 LED blinks green.

When the Catalyst 2955T-12 begins POST:

•Uplink port 1 LED is amber.

•Uplink port 2 LED blinks green.

If POST completes successfully on the Catalyst 2955C-12 and 2955S-12:

•Uplink port 13 LED turns green.

•Uplink port 14 LED goes off during the flash file system initialization.

If POST completes successfully on the Catalyst 2955T-12:

•Uplink port 1 LED turns green.

•Uplink port 2 LED goes off during the flash file system initialization.

If POST fails on the Catalyst 2955C-12 and 2955S-12:

•Uplink port 13 LED blinks amber.

•Uplink port 14 LED turns green.

If POST fails on the Catalyst 2955T-12:

•Uplink port 1 LED blinks amber.

•Uplink port 2 LED turns green.

Note POST failures are usually fatal. Call Cisco Systems immediately if your switch does not pass POST. See the "Obtaining Technical Assistance" section on page xxviii.

Connecting to the Console Port

You can use the console port to perform the initial configuration. To connect the switch console port to a PC, use the supplied RJ-45-to-DB-9 adapter cable.

Warning Do not connect or disconnect cables to the ports while power is applied to the switch or any device on the network because an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed from the switch and cannot be accidentally be turned on, or verify that the area is nonhazardous before proceeding. Statement 1070

Follow these steps to connect the PC or terminal to the switch:

Step 1 Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into the console port on the rear of a switch, as shown in Figure 1-2.

Step 2 Attach the DB-9 female DTE of the adapter cable to a PC serial port, or attach an appropriate adapter to the terminal.

Figure 1-2 Connecting a Switch to a PC

1

Catalyst 2955 switch

2

RJ-45-to-DB-9 adapter cable

Starting the Terminal-Emulation Software

Before you power on the switch, start the terminal-emulation session on your PC so that you can see the output display from the power-on self-test (POST).

Warning If you connect or disconnect the console cable with power applied to the switch or any device on the network, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

To verify switch operation, perform POST on the switch in a nonhazardous location before installation. Statement 1065

The terminal-emulation software—frequently a PC application such as Hyperterminal or ProcommPlus—makes communication between the switch and your PC or terminal possible.

Follow these steps to start a terminal-emulation session:

Step 1 Start the terminal-emulation program if you are using a PC or terminal.

Step 2 Configure the baud rate and data format of the PC or terminal to match these console port default characteristics:

•9600 baud

•8 data bits

•1 stop bit

•No parity

•None (flow control)

Entering the Initial Configuration Information

To set up the switch, you need to complete the setup program, which runs automatically after the switch is powered on. You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet. This information is also required if you plan to use the Network Assistant to configure and manage the switch.

IP Settings

You will need this information from your network administrator before you complete the setup program:

•Switch IP address

•Subnet mask (IP netmask)

•Default gateway (router)

•Enable secret password

•Enable password

•Telnet password

Completing the Setup Program

Follow these steps to complete the setup program and to create an initial configuration for the switch:

Step 1 Enter Yes at these two prompts.

Would you like to enter the initial configuration dialog? [yes/no]: yes

At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.

Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system.

Would you like to enter basic management setup? [yes/no]: yes

Step 2 Enter a host name for the switch, and press Return.

On a command switch, the host name is limited to 28 characters; on a member switch to 31 characters. Do not use -n, where n is a number, as the last character in a host name for any switch.

Enter host name [Switch]: host_name

Step 3 Enter an enable secret password, and press Return.

The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows spaces, but ignores leading spaces. The secret password is encrypted, and the enable password is in plain text.

Enter enable secret: secret_password

Step 4 Enter an enable password, and press Return.

Enter enable password: enable_password

Note The CLI issues a warning message if the enable secret and enable passwords are the same.

You can override this warning by re-entering the password or by choosing a different password for the enable secret password.

Step 5 Enter a virtual terminal (Telnet) password, and press Return.

The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores leading spaces.

Enter virtual terminal password: terminal-password

Step 6 (Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts. You can also configure SNMP later through the CLI, the device manager, or the Network Assistant application. To configure SNMP later, enter no.

Configure SNMP Network Management? [no]: no

Note For instructions on how to configure SNMP, see the switch software configuration guide.

Step 7 Enter the interface name (physical interface or virtual local-area network [VLAN] name) of the interface that connects to the management network, and press Return. For this release, always use vlan1 as that interface.

Enter interface name used to connect to the
management network from the above interface summary: vlan1

Step 8 Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP address and subnet masks shown below are examples.

Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: 10.4.120.106
Subnet mask for this interface [255.0.0.0]: 255.0.0.0

Step 9 Enter Y to configure the switch as the cluster command switch. Enter N to configure it as a member switch or as a standalone switch.

If you enter N, the switch appears as a candidate switch in the Network Assistant GUI. You can configure the switch as a command switch later through the CLI, the device manager, or the Network Assistant application. To configure it later, enter no.

Would you like to enable as a cluster command switch? [yes/no]: no

You have now completed the initial configuration of the switch, and the switch displays that configuration. This is an example of the output that appears:

The following configuration command script was created:
hostname host_name
enable secret 5 $1$Max7$Qgr9eXBhtcBJw3KK7bc850
enable password my
line vty 0 15
password my_password
snmp-server community public
!
no ip routing
!
interface Vlan1
no shutdown
ip address 172.20.139.145 255.255.255.224
!
interface Vlan2
shutdown
no ip address
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
...<output abbreviated>
!!!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
end

Step 10 These choices appear:

[0] Go to the IOS command prompt without saving this config.

[1] Return back to the setup without saving this config.

[2] Save this configuration to nvram and exit.

If you want to save the configuration and use it the next time the switch reboots, save it in nonvolatile RAM (NVRAM) by selecting option 2.

Enter your selection [2]:2

Make your selection, and press Return.

After you complete the setup program, the switch can run the default configuration that you created. If you want to change this configuration or want to perform other management tasks, use one of these tools:

•Command-line interface (CLI)

•Network Assistant (for one or more switches)

To use the CLI, enter commands at the Switch> prompt through the console port by using a terminal-emulation program or through the network by using Telnet. For configuration information, see the switch software configuration guide or the switch command reference.

To use the Network Assistant, see the Getting Started with Cisco Network Assistant guide on Cisco.com.