Cisco 550X Series Manuale utente

Quick Start Guide

Cisco 550X Series Stackable Managed Switches

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2 Cisco 550X Series Stackable Managed Switches Quick Start Guide

Welcome

Thank you for choosing the Cisco 550X Series Stackable Managed Switch,

a Cisco network communications device. This device is designed to be

operational right out-of-the-box as a standard layer 2 and 3 switch. In the

default configuration, it will forward packets between connecting devices

after power up.

This guide familiarizes you with the layout of the switch and describes how

to deploy the switch in your network. For additional information, see

www.cisco.com/go/550xswitches.

Package Contents

•Cisco 550X Series Stackable Managed Switch

•Power Cord

•Rack-Mount Kit and Rubber Feet

•DB-9 to RJ45 Serial Cable

•Quick Start Guide

•Pointer Card with China RoHS

•Technical Support Contacts

•EU Directives 1999/5/EC Compliance Information (for EU SKU only)

Before You Begin

Before you begin the installation, make sure that you have the following:

•RJ-45 Ethernet cables for connecting network devices. A Category 6A

or higher cable is required for 10G ports; a category 5e or higher cable

is required for all other ports.

•Console cable for using the console port to manage your switch.

•Tools for installing the hardware. The rack-mount kit packed with the

switch contains four rubber feet for desktop placement, and two

brackets and twelve screws for rack-mounting.

•Computer with Internet Explorer (version 9.0, 10.0, or 11.0), Mozilla

Firefox (version 36.0, 37.0, or higher), or Google Chrome (version

40,41,42, or higher) for using the web-based interface or the console

port to manage your switch.

Cisco 550X Series Stackable Managed Switches Quick Start Guide 3

Mounting the Cisco 550X Series Stackable

Managed Switches

There are two ways to physically install the switch:

•Place the switch on a flat surface. To place the switch on a desktop,

install the four rubber feet (included) on the bottom of the switch.

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

Placement Tips

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

conditions exist:

•AmbientTemperature—To prevent the switch from overheating, do not

operate it in an area that exceeds an ambient temperature of 122°F

(50°C).

•AirFlow—Be sure that there is adequate air flow around the switch.

• Mechanical Loading—Be sure that the switch is level and stable to

avoid any hazardous conditions.

• Circuit Overloading—Adding the switch to the power outlet must not

overload that circuit.

These switches must be supplied by power from the building in which

they are used or from UL listed information technology (ITE) equipment. For

assistance with obtaining a power supply, contact your Cisco

Representative.

Rack Mounting

You can mount the switch in any standard size, 19-inch (about 48 cm) wide

rack. The switch requires 1 rack unit (RU) of space, which is 1.75 inches

(44.45 mm) high.

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 might tip over.

4 Cisco 550X Series Stackable Managed Switches Quick Start Guide

To install the switch into a 19-inch standard chassis:

STEP 1Place one of the supplied brackets on the side of the switch so the

four holes of the brackets align to the screw holes, and then use the

four supplied M4 screws to secure it.

STEP 2Repeat the previous step to attach the other bracket to the opposite

side of the switch.

STEP 3After the brackets are securely attached, the switch is now ready to

be installed into a standard 19-inch rack as shown here.

Connecting Network Devices

To connect the switch to the network:

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

printer, network storage, or other network devices.

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

numbered Ethernet ports of the switch. The LED of the port lights if

the device connected is active.

The Ethernet port light turns green when the connection is active.

Refer to Cisco 550X Series Stackable Managed Switches

Features for details about the different ports and LEDs on each

switch.

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

connect to the switch.

400925

Cisco 550X Series Stackable Managed Switches Quick Start Guide 5

NOTE A Category 6A or higher cable is required for 10G ports; a

Category 5e or higher cable is required for all other ports. 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 Considerations

WARNING The switch is to be connected only to PoE networks without

routing to the outside plant.

If your switch is one of the Power over Ethernet (PoE) models, consider the

following power requirement:

550X Series Stackable Managed Switches with PoE

Model Power

Dedicated

to PoE

Number of Ports

Supporting PoE

PoE Standard

Supported

SF550X-24P 195 Watts 1–24

*60-Watt PoE: port

1,2,3,4,13,14,15,16

802.3af/at

60-Watt PoE

SF550X-24MP 382 Watts 1–24

*60-Watt PoE: port

1,2,3,4,13,14,15,16

802.3af/at

60-Watt PoE

SF550X-48P 382 Watts 1–48

*60-Watt PoE: port

1,2,3,4,5,6,7,8,25,26,

27,28,29,30,31,32

802.3af/at

60-Watt PoE

SF550X-48MP 740 Watts 1–48

*60-Watt PoE: port

1,2,3,4,5,6,7,8,25,26,

27,28,29,30,31,32

802.3af/at

60-Watt PoE

SG550X-24P 195 Watts 1–24

*60-Watt PoE: port

1,2,3,4,13,14,15,16

802.3af/at

60-Watt PoE

SG550X-24MP 382 Watts 1–24

*60-Watt PoE: port

1,2,3,4,13,14,15,16

802.3af/at

60-Watt PoE

6 Cisco 550X Series Stackable Managed Switches Quick Start Guide

*60-Watt PoE extends the IEEE Power over Ethernet Plus standard to

double the power per port to 60 watts.

SG550X-24MPP 740 Watts 1–24

*60-Watt PoE: port

1,2,3,4,13,14,15,16

802.3af/at

60-Watt PoE

SG550X-48P 382 Watts 1–48

*60-Watt PoE: port

1,2,3,4,5,6,7,8,25,26,

27,28,29,30,31,32

802.3af/at

60-Watt PoE

SG550X-48MP 740 Watts 1–48

*60-Watt PoE: port

1,2,3,4,5,6,7,8,25,26,

27,28,29,30,31,32

802.3af/at

60-Watt PoE

Cisco 550X Series Stackable Managed Switches Quick Start Guide 7

CAUTION Consider the following when connecting switches capable of

supplying PoE:

The PoE models of the switches are PSE (Power Sourcing

Equipment) that are capable of supplying DC power to

attaching PD (Powered Devices). These devices include VoIP

phones, IP cameras, and wireless access points. The PoE

switches can detect and supply power to pre-standard

legacy PoE Powered Devices. Due to the support of legacy

PoE, it is possible that a PoE switch acting as a PSE may

mistakenly detect and supply power to an attaching PSE,

including other PoE switches, as a legacy PD.

Even though PoE switches are PSE, and as such should be

by another PSE due to false detection. When this happens,

the PoE switch may not operate properly and may not be

able to properly supply power to its attaching PDs.

To prevent false detection, you should disable PoE on the

ports on the PoE switches that are used to connect to PSEs.

You should also first power up a PSE device before

connecting it to a PoE switch. When a device is being falsely

detected as a PD, you should disconnect the device from the

PoE port and power recycle the device with AC power

before reconnecting its PoE ports.

Configuring the Cisco 550X Series

Stackable Managed Switches

Before You Begin

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

your IP network using the web-based interface, or by using the switch’s

command-line interface through the console port. Using the console port

requires advanced user skills.

124

8 Cisco 550X Series Stackable Managed Switches Quick Start Guide

These are the default settings used when configuring your switch for the

first time.

Configuring Your Switch Using the Web-based Interface

To access the switch with a web-based interface, you must know the IP

address that the switch is using. The default configuration of the switch is

to use its factory default IP address of 192.168.1.254 by default.

When the switch is using the factory default IP address, the System LED

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

address or an administrator has configured a static IP address, the System

LED is on solid (DHCP is enabled by default).

NOTE If you are managing the switch through a network connection and

the switch IP address is changed, either by a DHCP server or manually,

your access to the switch will be lost. You must enter the new IP address

that the switch is using into your browser to use the web-based

interface. If you are managing the switch through a console port

connection, the link is retained.

To configure the switch using the web-based interface:

STEP 1Power on the computer and your switch.

STEP 2For Cisco 550XG switches, connect the computer to the OOB port

found on the front panel. For Cisco 550X switches, connect the

computer to any network port.

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 choose an IP address in the range of

192.168.1.2 to 192.168.1.253 that is not already in use.

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

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 that you are using. Use your computers local Help and

Support functionality and search for “IP Addressing.”

Parameter Default Value

Username cisco

Password cisco

LAN IP 192.168.1.254

Cisco 550X Series Stackable Managed Switches Quick Start Guide 9

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.

STEP 6When the login page appears, choose the language that you prefer

to use in the web-based interface and enter the username and

password.

The default username is cisco. The default password is cisco.

Usernames and passwords are both case sensitive.

STEP 7Click Log In.

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

username and password, the Change Password page opens. The

rules for constructing a new password are displayed on the page.

STEP 8Enter a new password and confirm the password.

NOTE Password complexity is enabled by default. The password

must comply with the default complexity rules or it can be disabled

temporarily by checking Disable next to the Password Strength

Enforcement option.

STEP 9Click 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 page opens. You are now ready to configure

the switch. Refer to the Cisco 550X Series Stackable Managed

Switches Administration Guide or see the help pages for further

information.

Configuring Your Switch Using the Console Port

To configure the switch using the console port:

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

console cable.

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

STEP 3Configure the utility with the following parameters:

10 Cisco 550X Series Stackable Managed Switches Quick Start Guide

•115200 bits per second

•8 data bits

•no parity

•1 stop bit

•no flow control

STEP 4Enter a username and password. The default username is cisco,

and the default password is cisco. Usernames and passwords are

both case sensitive.

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

username and password, the following message appears:

Please change your password from the default

settings. Please change the password for better

protection of your network. Do you want to change

the password (Y/N) [Y]?

STEP 5Enter Y, and set a new administrator password.

NOTE Password complexity is enabled by default. The password

must comply with the default complexity rules.

CAUTION Make sure that any configuration changes made are saved

before exiting.

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

550X Series Stackable Managed Switches Command Line

Interface Reference Guide for further information.

NOTE If you are not using DHCP on your network, set the IP address type

on the switch to Static and change the static IP address and subnet

mask to match your network topology. Failure to do so may result in

multiple switches using the same factory default IP address of

192.168.1.254.

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