Cisco Small Business 300 Manuale utente

Quick Start Guide

Cisco Small Business

300 Series Managed Switches

2 300 Series Managed Switches

Welcome

Thank you for choosing the Cisco 300 Series Managed Switch, a Cisco

Small Business network communications device. This device is designed

to be operational right out of the box as a standard bridge. In the default

configuration, it will forward packets between connecting devices after

power up.

Package Contents

•Cisco SF 300-08, SF 302-08, SF 302-08MP, SF 302-08P, SG 300-10,

SG 300-10MP, SG 300-10P, SG 300-20, SF 300-24, SF 300-24P, SG

300-28, SG 300-28P, SF 300-48, SF 300-48P, or SG 300-52 Managed

Switch

•Rackmount Kit

•Wall Mount Kit

•Power Cord (power adapter included with 8-port devices)

•This Quick Start Guide

•Product CD

•Serial Cable

•Rubber Feet

This guide will familiarize you with the layout of the managed switch and

describe how to deploy the device in your network. For additional

information, see www.cisco.com/smb.

Mounting the Cisco Switch

There are three ways to physically install the switch:

• Set the switch on a flat surface.

•Mount the switch on a wall (8-port devices only).

• Mount the switch in a standard rack (1 rack unit high).

Do not deploy the device in a location where any of the following

conditions exist:

High Ambient Temperature—The ambient temperature must not

exceed 104 degrees Fahrenheit (40 degrees Centigrade).

Reduced Air Flow—Both side panels must be unobstructed to prevent

overheating.

300 Series Managed Switches 3

Mechanical Overloading—The device should be level, stable, and

secure to prevent it from sliding or shifting out of position.

Circuit Overloading—Adding the device to the power outlet must not

overload that circuit.

Rack-Mount Placement

To rack-mount the switch in any standard rack, attach the rack–mount

brackets to the sides of the switch with the supplied hardware and secure

the brackets tightly.

CAUTION For stability, load the rack from the bottom to the top, with the

heaviest devices on the bottom. A top-heavy rack is likely to

be unstable and may tip over.

Wall Mounting

Only the 8-port models of the switch can be wall-mounted.

NOTE The switch should be mounted so that the ports face up or down.

Do not mount the switch with the ports to the side.

There is a wall-mount kit packed with your switch. The dimensions for the

mount kit are as follows:

Mount the managed switch to the wall by drilling two pilot holes

3.7 inches (95 mm) apart, attaching the provided anchors and screws to

the wall, then sliding the switch into position on the screws.

The switch should have a minimum of 5 inches (130 mm) of clearance on all

sides.

18 mm/0.4 in 222.2 mm/0.9 in 36.8 mm/0.3 in 417.6 mm/0.7 in

196243

4 300 Series Managed Switches

WARNING Insecure mounting may damage the device or cause injury.

Cisco is not responsible for damages incurred by insecure wall-

mounting.

Connecting Network Devices

To connect the managed switch to the network:

STEP 1Connect the Ethernet cable to the Ethernet port of a computer,

printer, network storage, or other network device.

STEP 2Connect the other end of the network Ethernet cable to one of the

numbered managed switch Ethernet ports.

The LED of the port lights if the device connected is active. Refer to

Features of the Cisco Small Business Managed Switch, page 9

for details about the different ports and LEDs on each switch.

STEP 3Repeat Step 1 and Step 2 for each device you want to connect to

the managed switch.

NOTE Cisco strongly recommends using Cat5 or better cable for Gigabit

connectivity. When you connect your network devices, do not exceed

the maximum cabling distance of 100 meters (328 feet). It can take up to

one minute for attached devices or the LAN to be operational after it is

connected. This is normal behavior.

Power over Ethernet (PoE) Considerations

If your switch is one of the PoE models, consider the following:

As a PSE (Power Sourcing Equipment) device, the switch can deliver a

maximum of 15.4 Watts per PoE port to a PD (Powered Device).

300 Series Managed Switches 5

Configuring the Cisco Small Business

Managed Switch

Before You Begin

Verify that a computer with Microsoft Internet Explorer (version 6 and

higher) or Firefox (version 2.0 or higher) is available.

The switch can be accessed and managed by two different methods; over

your IP network using the web-based interface, or by the menu CLI

through the console port. Using the console port requires advanced user

skills.

The switch works with Cisco Small Business network tools and services

including the Cisco FindIT Network Discovery Utility that enables you to

automatically discovers all supported Cisco Small Business devices in the

same local network segment as your PC. You can get a snapshot view of

each device or launch the product configuration utility to view and

configure the settings. For more information, see www.cisco.com/go/findit.

Accessing and Managing Your Switch Using the Web-

Based Interface

In order to access the switch with a web-based interface, you will need to

know the IP address the switch is using. The default configuration of the

switch is to use its factory default IP address of 192.168.1.254 until it has

obtained an IP address from a DHCP server.

When the switch is using the factory default IP address, its power LED

flashes continuously. When the switch is using a DHCP assigned IP

address or an administrator configured static IP address, the power LED is

on solid.

NOTE If the managed switch IP address is changed, either by a DHCP

server or manually, your access to the managed switch will be lost and

you must enter the new IP address to use the web-based interface.

Use the Web-Based Interface

To configure the managed switch:

STEP 1Power on the computer and the switch.

STEP 2Connect the computer to the switch. You can connect to the same

IP subnet as the switch by connecting them directly with an

Ethernet cable, or by connecting to the same LAN where the

switch is located through other switches. You can also connect

your computer to the switch from another IP subnet through one or

more IP routers.

6 300 Series Managed Switches

STEP 3Set up the IP configuration on your computer.

a. If the switch is using the default static IP address of

192.168.1.254, you must chose an IP address in the range of

192.168.1.1-192.168.1.253 that is not already in use.

b. If the IP addresses will be assigned by DHCP, make sure your

DHCP server is running and can be reached from the switch

and the computer. You may need to disconnect and reconnect

the devices for them to discover their new IP addresses from

the DHCP server.

NOTE Details on how to change the IP address on your computer

depend upon the type of architecture and operating system you are

using. Use your computers local Help and Support functionality and

search for “IP Addressing”.

STEP 4Open a Web browser window. If you are prompted to install an

Active-X plug-in when connecting to the device, follow the

prompts to accept the plug-in.

STEP 5Enter the switch IP address in the address bar and press Enter. For

example, http://192.168.1.254.

The Managed Switch Login Page

displays.

STEP 6Enter the default login information:

Username is cisco

Default password is cisco (passwords are case sensitive)

STEP 7If this is the first time that you have logged on with the default

username and password, the

Change Password Page

opens. Enter

a new administrator password and then click Apply.

CAUTION Make sure that any configuration changes made are saved

before exiting from the web-based interface by clicking on

the Save icon. Exiting before you save your configuration will

result in all changes being lost.

The Getting Started window displays. You are now ready to configure the

switch. Refer to the

Cisco Small Business Managed Switch Administration

Guide

for further information.

300 Series Managed Switches 7

Use the console port

To configure the managed switch:

STEP 1Connect a computer to the switch console port using the provided

console port cable.

STEP 2Start a console port utility such as HyperTerminal on the computer.

STEP 3Configure the utility with the following parameters:

•115200 bits per second

•8 data bits

•no parity

•1 stop bit

•no flow control

STEP 4Enter a user name and password. User names and passwords are

both case sensitive and alpha-numeric. The default username is

cisco, and the default password is cisco.

STEP 5If this is the first time that you have logged on with the default

username and password, the

Change User Password Page

opens.

Select Edit, enter a new administrator password and then select

Execute.

CAUTION Make sure that any configuration changes made are saved

before exiting.

You are now ready to configure the switch. Refer to the

Cisco Small

Business Managed Switch Administration Guide

for further information.

Next Steps

•If you are not using DHCP on your network, set the connection

type on the managed switch to Static and change the static IP

address and subnet mask to match your network topology.

•Save your settings

•Return your computer to its original settings

These tasks can be accomplished by using the procedures in the Cisco

Small Business Managed Switch Administration Guide.

8 300 Series Managed Switches

Troubleshoot Your Connection

If you cannot access your switch from the web-based interface, the switch

may not be reachable from your computer. You can test network

connections by using ping on a computer running Windows:

STEP 1Open a command window by using Start > Run and enter cmd.

STEP 2At the Command window prompt enter ping and the managed

switch IP address. For example ping 192.168.1.254 (the

default static IP address of the managed switch).

If you can reach the switch, you should get a reply similar to the

following:

Pinging 192.168.1.254 with 32 bytes of data:

Reply from 192.168.1.254: bytes=32 time<1ms TTL=128

If you cannot reach the switch, you should get a reply similar to the

following:

Pinging 192.168.1.254 with 32 bytes of data:

Request timed out.

Possible Causes and Resolutions

No Power:

Power up the switch and your computer if they are turned off.

Bad Ethernet connection:

Check the LEDs for proper indications. Check the connectors of the

Ethernet cable to ensure they are firmly plugged into the switch and

your computer.

Bad Console port connection:

Check the console cable connectors to make sure they are firmly

plugged into the switch and your computer. Make sure the console

port utility is configured with the correct parameters.

Wrong IP address:

Make sure you are using the correct IP address of the switch. You can

determine the status of where you received the current IP address of

the switch from the system LED. You can determine the current IP

address of the switch from the menu CLI through the console port

interface, or from your network administrator.

Make sure that no other device is using the same IP address as the

switch.

300 Series Managed Switches 9

No IP route:

If the switch and your computer are in different IP subnets, you need

one or more routers to route the packets between the two subnets.

Unusually long access time:

Due to the standard spanning tree loop detection logic, adding new

connections may take 30 to 60 seconds for the affected interfaces

and/or LAN to become operational.

Features of the Cisco Small Business

Managed Switch

This section describes the exterior of the managed switches including

ports, LEDs, and connections.

Front Panel Ports

The ports and LEDs are located on the front panel of the switch.

RJ-45 Ethernet Ports—Use these ports to connect network devices, such

as computers, printers, and access points, to the switch.

MiniGBIC (if present)—The miniGBIC (gigabit interface converter) ports are

connection points for miniGBIC modules, so the managed switch can

uplink to other switches by using optical fiber.

•MiniGBIC ports are compatible with Cisco miniGBIC modules MGBSX1,

MGBLH1, MGBLX1, MGBBX1, MFELX1, MFEFX1, and MFEBX1, as well as

other brands of miniGBIC modules.

• MiniGBIC interface is a combination port, shared with one other RJ-45

interface. When the MiniGBIC is active, the adjacent RJ-45 port is

disabled.

•The LEDs of the corresponding RJ-45 port light to respond to the

miniGBIC interface traffic.

10 300 Series Managed Switches

Front Panel LEDs

System LED—(Green) Lights steady when the switch is powered on, and

flashes when booting, performing self tests, and acquiring an IP address. If

the LED flashes Amber, the switch has detected a hardware failure.

LINK/ACT LED—(Green) Located on the left of the port. Lights steady

when a link between the corresponding port and another device is

detected. Flashes when the port is passing traffic.

NOTE The System and LINK/ACT LEDs are on each model of the switch.

The following LEDs are only present on switch models that have those

capabilities:

PoE (if present)—(Amber) Located on the right of the port. Lights steady to

indicate that power is being supplied to a device attached to the

corresponding port.

100M LED (if present)—(Green) Located on the right of the port. Lights

steady when another device is connected to the port, is powered on, and a

100 Mbps link is established between the devices. When the LED is off, the

connection speed is under 100 Mbps or nothing is cabled to the port.

Gigabit LED (if present)—(Green) Located on the right of the port. Lights

steady when another device is connected to the port, is powered on, and a

1000 Mbps link is established between the devices. When the LED is off,

the connection speed is under 1000 Mbps or nothing is cabled to the port.

MiniGBIC (if present)—(Green) Located on the right of the port. Lights

steady when a connection is made through the shared RJ-45 port. Flashes

when the port is passing traffic.

Additional Front Panel Features

The switch also has a reset button.

The switch can be reset by inserting a pin or paper clip into the reset

opening. See “Returning the Device to the Factory Default Settings” for

details.

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