Cisco WS-C3750G-24TS-S1U - Catalyst Switch -... Bedienungsanleitung

GETTING STARTED GUIDE

Catalyst 3750 Switch Getting Started Guide

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, Obtaining Support, and Security Guidelines

9Cisco Warranty Information

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.

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

Catalyst 3750 switch

Console cable

(optional)

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

207383

Catalyst 3750G

SERIES

SYST

RPS

STAT

DUPLX

SPEED

MODE

125678910 11 12 13 14 15 16

15X

16X

17 18 21 22 23 24 25 26 27 28 29 30 31 32

19 20

17X

18X

31X

32X

33 34 37 38 39 40 41 42 43 44 45 46 47 48

35 36

33X

34X

47X

48X

MASTR

STACK

Product

Documentation

and Compliance

3 Running Express Setup

When you first set up the switch, you should use Express Setup to enter the initial IP information. 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 Make sure that nothing is connected to the switch.

During Express Setup, the switch acts as a DHCP server. If your PC has a static IP address,

change your PC settings before you begin to temporarily use DHCP.

Step 2 Power the switch by connecting the supplied AC power cord to the switch power

connector and to a grounded AC outlet.

Step 3 When the switch powers on, it begins the power-on self-test (POST). During POST, the

LEDs blink while tests verify that the switch functions properly.

Wait for the switch to complete POST, which can take several minutes.

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. Contact your Cisco technical support representative if your

switch fails POST.

Step 5 Press and hold the Mode button for

3 seconds. When all of the LEDs left

of the Mode button turn green,

release the Mode button.

If the LEDs left of 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.

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

Mode button are green. (On some models, the RPS and PoE LEDs remain off.)

SYST

RPS

STAT

DUPLX

SPEED

PoE

MODE

125678910 11 12 13 14 15 16

15X

16X

Mode button

Step 7 Connect a Category 5 Ethernet cable

to any 10/100 or 10/100/1000

Ethernet port on the switch front

panel.

Connect the other end of the cable to

the Ethernet port on your PC.

Step 8 Verify that the switch and PC Ethernet ports LEDs are green.

Wait 30 seconds.

Step 9 Start a web browser on your PC.

Enter the IP address 10.0.0.1 in the

web browser, and press Enter.

Step 10 The Express Setup page appears. If it does not appear, see the “In Case of Difficulty”

section 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 11 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. 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 12 (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.

•Enter the date, time, and time zone information in the System Date, System Time, and

Time Zone fields. Click Enable to enable daylight saving time.

Step 13 (Optional) Click the Advanced Settings tab on the Express Setup window, and enter the

advanced settings now or enter them later by using the device manager interface.

Step 14 (Optional) Enter this information in the Advanced Setting fields:

•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.

•In the System Contact and System Location fields, enter a contact name and the wiring

closet, floor, or building where the switch is located.

Step 15 (Optional) You can enable Internet Protocol version 6 (IPv6) on the switch. From the

Advanced Settings tab, check the Enable IPv6 check box.

Note Enabling IPv6 restarts the switch when you complete Express Setup.

Step 16 To complete Express Setup, click Submit from the Basic Settings or the Advanced Settings

tab 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 tries 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 17 Disconnect the switch from the PC, and install the switch in your production network. See

the “Managing the Switch” section for information about configuring and managing the

switch.

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

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.

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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