Cisco 3750 - Catalyst EMI Switch Manual de usuario

Getting Started Guide

Catalyst 3750 Switch Getting Started Guide

INCLUDING LICENSE AND WARRANTY

1About this Guide

2Taking Out What You Need

3Running Express Setup

4Managing the Switch

5Planning Switch Stacks

6Rack-Mounting

7In Case of Difficulty

8Obtaining Documentation

9Documentation Feedback

10 Cisco Product Security Overview

11 Obtaining Technical Assistance

12 Obtaining Additional Publications and Information

13 Cisco Limited Lifetime Hardware Warranty Terms

1 About this Guide

This guide provides instructions on how to use Express Setup to initially configure your Catalyst

switch. Also covered are switch management options, basic rack-mounting procedures, stacking

procedures, port and module connection procedures, power connection procedures, and

troubleshooting help.

For additional installation and configuration information for Catalyst 3750 switches, see the Catalyst

3750 documentation on Cisco.com. For system requirements, important notes, limitations, open and

resolved bugs, and last-minute documentation updates, see the release notes, also on Cisco.com.

When using the online publications, refer to the documents that match the Cisco IOS software version

running on the switch. The software version is on the Cisco IOS label on the switch rear panel.

You can order printed copies of the manuals from the Cisco.com sites and from the telephone numbers

listed in the “Obtaining Documentation” section on page 24.

For translations of the warnings that appear in this publication, see the Regulatory Compliance and

Safety Information for the Catalyst 3750 Switch that accompanies this guide.

2 Taking Out What You Need

Follow these steps:

1. Unpack and remove the switch and the accessory kit from the shipping box.

2. Return the packing material to the shipping container, and save it for future use.

3. Verify that you have received the items shown on page 3. If any item is missing or damaged,

contact your Cisco representative or reseller for instructions. Some switch models might include

additional items that are not shown on page 3.

Note If you do not specify the length of the StackWise cable, the 0.5-meter cable is supplied.

Equipment That You Supply to Run Express Setup

You need to supply this equipment to run Express Setup:

•PC

•Ethernet (Category 5) straight-through cable (as shown)

Shipping Box Contents

Regulatory Compliance

and Safety Information

for the

Catalyst 3750 Switch

Getting Started Guide

Cisco

Product Ownership

Registration card

Catalyst 3750 switch

Console cable

Two 19-inch

mounting brackets

Four number-12 Phillips machine screws

Four number-8 Phillips truss-head screws

Six number-8 Phillips flat-head screws

Four rubber mounting feet

AC power cord

Connector cover for redundant

power system (RPS)

Two number-4 pan-head screws

Cable guide

One black Phillips machine screw

Documentation

0.5-meter, 1.0-meter or 3.0-meter

StackWise cable

Catalyst 3750G

SERIES

SYST

RPS

STAT

DUPLX

SPEED

MODE

125678910 11 12 13 1415 16

15X

16X

17 1821 22 23 24 25 262728 29 30 31 32

19 20

17X

18X

31X

32X

33 3437 38 394041 42 43 4445 46 47 48

35 36

33X

34X

47X

48X

MASTR

STACK

3 Running Express Setup

When you first set up the switch, you should use Express Setup to enter the initial IP information.

Doing this enables the switch to connect to local routers and the Internet. You can then access the

switch through the IP address for further configuration.

To run Express Setup:

Step 1 Verify that no devices are connected to the switch, because during Express Setup, the

switch acts as a DHCP server. If your PC has a static IP address, before you begin you

should change your PC settings to temporarily use DHCP.

Step 2 Connect the AC power cord to the switch and to a grounded AC outlet. The power-on

self-test (POST) begins. During POST, the LEDs blink while a series of tests verify that the

switch functions properly.

Step 3 Wait for the switch to complete POST. It might take several minutes for the switch to

complete POST.

Step 4 Verify that POST has completed by confirming that the SYST LED remains green. If the

switch fails POST, the SYST LED turns amber.

POST errors are usually fatal. Call Cisco Systems immediately if your switch fails POST.

Step 5 Press and hold the Mode button for

3 seconds. When all of the LEDs

above the Mode button turn green,

release the Mode button.

If the LEDs above the Mode button

begin to blink after you press the

button, release it. Blinking LEDs

mean that the switch has already

been configured and cannot go into

Express Setup mode. For more

information, see the “Resetting the

Switch” section on page 23.

Step 6 Verify that the switch is in Express Setup mode by confirming that all LEDs above the

Mode button are green. (On some switch models, the RPS LED remains off.)

MODE

125678910 11 12 13 14 15 16

15X

16X

Mode button

RPS

STAT

DUPLX

SPEED

MASTR

STACK

SYST

Step 7 Connect a straight-through

Category 5 Ethernet cable (not

provided) to any 10/100 or

10/100/1000 Ethernet port on the

switch front panel and to the

Ethernet port on the PC.

Step 8 Verify that the LEDs on both Ethernet ports are green.

Step 9 Wait 30 seconds.

Step 10 Launch a web browser on your PC.

Enter the IP address 10.0.0.1 in the

web browser, and press Enter.

Step 11 The Express Setup page appears. If it does not appear, see the “In Case of Difficulty”

section on page 22 for help.

Catalyst3560G

SERIES

PoE-48

MODE

12567891011 12 131415 16

15X

16X

1718 21 22 23 2425 26 27 28 293031 32

1920

17X

18X

31X

32X

33 34 3738 3940 4142 4344 45 464748

35 36

33X

34X

47X

48X

RPS

STAT

DUPLX

SPEED

MASTR

STACK

SYST

DHCP-enabled PC

Step 12 Enter this information in the Network Settings fields:

•In the Management Interface (VLAN ID) field, the default is 1. Enter a new VLAN ID

only if you want to change the management interface through which you manage the

switch and to which you assign IP information. The VLAN ID range is 1 to 1001.

•In the IP Address field, enter the IP address of the switch. In the IP Subnet Mask field,

click the drop-down arrow, and select an IP Subnet Mask.

•In the Default Gateway field, enter the IP address for the default gateway (router).

•Enter your password in the Switch Password field. The password can be from 1 to 25

alphanumeric characters, can start with a number, is case sensitive, allows embedded

spaces, but does not allow spaces at the beginning or end. In the Confirm Switch

Password field, enter your password again.

Step 13 (Optional) You can enter the Optional Settings information now or enter it later by using

the device manager interface:

•In the Host Name field, enter a name for the switch. The host name is limited to

31 characters; embedded spaces are not allowed.

•In the System Contact field, enter the name of the person who is responsible for the

switch. In the System Location field, enter the wiring closet, floor, or building where

the switch is located.

•In the Telnet Access field, click Enable if you are going to use Telnet to manage the

switch by using the command-line interface (CLI). If you enable Telnet access, you

must enter a Telnet password.

•In the Telnet Password field, enter a password. The Telnet password can be from

1 to 25 alphanumeric characters, is case sensitive, allows embedded spaces, but does

not allow spaces at the beginning or end. In the Confirm Telnet Password field,

re-enter the Telnet password.

•In the SNMP field, click Enable to enable Simple Network Management Protocol

(SNMP). Enable SNMP only if you plan to manage switches by using

CiscoWorks 2000 or another SNMP-based network-management system.

If you enable SNMP, you must enter a community string in the SNMP Read

Community field, the SNMP Write Community field, or both. SNMP community

strings authenticate access to MIB objects. Embedded spaces are not allowed in

SNMP community strings. When you set the SNMP read community, you can access

SNMP information, but you cannot modify it. When you set the SNMP write

community, you can both access and modify SNMP information.

Refreshing the PC IP Address

After you complete Express Setup, you should refresh the PC IP address:

•For a dynamically assigned IP address, disconnect the PC from the switch, and reconnect the PC

to the network. The network DHCP server assigns a new IP address to the PC.

•For a statically assigned IP address, change it to the previously configured IP address.

4 Managing the Switch

After you complete Express Setup and install the switch in your network, use the device manager or

other management options described in this section for further configuration.

Using the Device Manager

The simplest way to manage the switch is by using the device manager that is in the switch memory.

This is an easy-to-use web interface that offers quick configuration and monitoring. You can access

the device manager from anywhere in your network through a web browser.

Follow these steps:

1. Launch a web browser on your PC or workstation.

2. Enter the switch IP address in the web browser, and press Enter. The device manager page appears.

3. Use the device manager to perform basic switch configuration and monitoring. Refer to the device

manager online help for more information.

4. For more advanced configuration, download and run the Cisco Network Assistant, which is

described in the next section.

Step 14 Click Submit to save your settings, or click Cancel to clear your settings.

When you click Submit, the switch is configured and exits Express Setup mode. The PC

displays a warning message, and then attempts to connect with the new switch IP address.

If you configured the switch with an IP address that is in a different subnet from the PC,

connectivity between the PC and the switch is lost.

Step 15 Disconnect the switch from the PC, and install the switch in your production network. See

the “Managing the Switch” section on page 7 for information about configuring and

managing the switch.

If you need to rerun Express Setup, see the “Resetting the Switch” section on page 23.

Downloading Cisco Network Assistant

Cisco Network Assistant is a software program that you download from Cisco.com and run on

your PC. It offers advanced options for configuring and monitoring multiple devices, including

switches, switch clusters, switch stacks, routers, and access points. Network Assistant is free—there is

no charge to download, install, or use it.

Follow these steps:

1. Go to this Web address: http://www.cisco.com/go/NetworkAssistant.

You must be a registered Cisco.com user, but you need no other access privileges.

2. Find the Network Assistant installer.

3. Download the Network Assistant installer, and run it. (You can run it directly from the Web if

your browser offers this choice.)

4. When you run the installer, follow the displayed instructions. In the final panel, click Finish to

complete the Network Assistant installation.

Refer to the Network Assistant online help and the getting started guide for more information.

Command-Line Interface

You can enter Cisco IOS commands and parameters through the CLI. Access the CLI either by

connecting your PC directly to the switch console port or through a Telnet session from a remote PC

or workstation.

Follow these steps:

1. Connect the supplied RJ-45-to DB-9 adapter cable to the standard 9-pin serial port on the PC.

Connect the other end of the cable to the console port on the switch.

2. Start a terminal-emulation program on the PC.

3. Configure the PC terminal emulation software for:

–

9600 baud

–

8 data bits

–

no parity

–

1 stop bit

–

no flow control

4. Use the CLI to enter commands to configure the switch. See the software configuration guide and

the command reference for more information.

Other Management Options

You can use SNMP management applications such as CiscoWorks Small Network Management

Solution (SNMS) and HP OpenView to configure and manage the switch. You also can manage it

from an SNMP-compatible workstation that is running platforms such as HP OpenView or

SunNet Manager.

The Cisco IE2100 Series Configuration Registrar is a network management device that works with

embedded Cisco Networking Services (CNS) agents in the switch software. You can use IE2100 to

automate initial configurations and configuration updates on the switch.

See the “Accessing Help Online” section on page 23 for a list of supporting documentation.

5 Planning Switch Stacks

Before connecting the Catalyst 3750 switches in a stack, keep in mind these planning considerations:

•The size of the switch. See the“Technical Specifications” appendix of the Catalyst 3750 Switch

Hardware Installation Guide for the switch dimensions. Stacking together switches of the same

size makes it easier to cable the switches.

•Length of cable. Depending on the configuration of your switch stack, you might need different

sized cables. If you don’t specify the length of the StackWise cable, the 0.5-meter cable is supplied.

If you require the 1-meter cable or 3-meter cable, you can order it from your Cisco supplier. For

cable numbers, see the Catalyst 3750 Switch Hardware Installation Guide.

Note For concepts and procedures to manage switch stacks, refer to the switch software

configuration guide.

Powering Considerations

Consider the following guidelines before you power the switches in a stack:

Note Stack master elections occur over a 10-second timeframe on switches running releases earlier

than Cisco IOS Release 12.2(20)SE3.

For more information on stack master elections, see the “Managing Switch Stacks” chapter

in the switch software configuration guide.

•The sequence in which the switches are

initially powered on might affect the switch

that becomes the stack master.

•If you want a particular switch to become the

stack master, power on that switch first. This

switch becomes the stack master and remains

the stack master until a master re-election is

required. After 20 seconds, power on the

remaining switches in the stack.

•If you have no preference for which switch

becomes the stack master, power on all the

switches in the stack within a 20-second

timeframe. These switches participate in the

stack master election. Switches powered on

after the 20-second timeframe do not

participate in the election.

•Power off a switch before you add it to or

remove it from an existing switch stack.

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