Cisco 500 Series User manual

Quick Start Guide
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500 Series Stackable Managed Switches

2 500 Series Stackable Managed Switches
Welcome
Thank you for choosing the Cisco 500 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
factory default configuration, it will forward packets between connecting
devices after power up.
Before you begin installing the switch, make sure you have all of the
package contents available, access to the
Cisco 500 Series Stackable
Managed Switch Administration Guide
, and a PC with a web browser for
using web-based system management tools.
Package Contents
•Cisco 500 Series Switch
•Rackmount Kit
•Power Cord
•This Quick Start Guide
•Product CD
•Serial Cable
•Rubber Feet
This guide will familiarize you with the layout of the switch and describe
how to deploy the device in your network. For additional information, see
www.cisco.com/smb.

500 Series Stackable Managed Switches 3
Mounting the Cisco Stackable Managed
Switch
There are two ways to physically install the switch:
• Set the switch on a flat surface.
• Mount the switch in a standard rack (1 rack unit).
Do not deploy the device in a location where any of the following
conditions exist:
High Ambient Temperature—Refer to the following table for the high
ambient temperature rating of each switch.
Ambient Temperature Ratings
Switch Model High Temperature
SF500-24 104 degrees Fahrenheit (40 Centigrade)
SF500-24P 104 degrees Fahrenheit (40 Centigrade)
SF500-24MP 122 degrees Fahrenheit (50 Centigrade)
SF500-48 104 degrees Fahrenheit (40 Centigrade)
SF500-48P 104 degrees Fahrenheit (40 Centigrade)
SF500-48MP 122 degrees Fahrenheit (50 Centigrade)
SG500-28 104 degrees Fahrenheit (40 Centigrade)
SG500-28P 104 degrees Fahrenheit (40 Centigrade)
SG500-28MPP 122 degrees Fahrenheit (50 Centigrade)
SG500-52 104 degrees Fahrenheit (40 Centigrade)
SG500-52P 104 degrees Fahrenheit (40 Centigrade)
SG500-52MP 122 degrees Fahrenheit (50 Centigrade)
SG500X-24 104 degrees Fahrenheit (40 Centigrade)
SG500X-24P 104 degrees Fahrenheit (40 Centigrade)
SG500X-24MPP 122 degrees Fahrenheit (50 Centigrade)
SG500X-48 104 degrees Fahrenheit (40 Centigrade)
SG500X-48P 104 degrees Fahrenheit (40 Centigrade)
SG500X-48MP 122 degrees Fahrenheit (50 Centigrade)
SG500XG-8F8T 122 degrees Fahrenheit (50 Centigrade)
1

4 500 Series Stackable Managed Switches
Reduced AirFlow—Bothsidepanelsmust be unobstructedtoprevent
overheating.
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
STEP 1Removethefourscrewsfromeach sidenear thefrontof theswitch.
Retain the screws for re-installation. Do not remove the four screws
from each side near the back of the switch.
STEP 2Place one of the supplied spacers on the side of the switch so the
four holes of the spacers align to the screw holes. Place a rack
mount bracket next to the spacer and reinstall the four screws
removed in step 1.
NOTE Suggestedscrewsizeis6.9mm(diameter)x6mm(height).Ifyour
screws are not long enough to reattach the bracket with the spacer in
place, attach the bracket directly to the case without the spacer.
STEP 3Repeat Step 2 for the other side of the switch.
STEP 4After the mounting hardware has been securely attached, the
switch is now ready to be installed into a standard 19-inch rack.
181185

500 Series Stackable Managed Switches 5
CAUTION For stability,load therackfromthebottomtothe top,withthe
heaviest devices on the bottom. A top-heavy rack is likely to
be unstable and might tip over.
Connecting Network Devices
To connect the switch to the network:
STEP 1ConnectanEthernetcabletoanEthernetportofacomputer,printer,
network storage, or other network device.
STEP 2Connect the other end of the network Ethernet cable to one of the
numbered switch Ethernet ports.
The Ethernet port light turns green when the connection is active.
Refer to External Features of the Cisco 500 Series Stackable
Managed Switch, page16 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 switch.
NOTE Cisco strongly recommends using Cat5 orbetter 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.
NOTE 500 Series switches have both standard Ethernet and stack ports.
Standard ethernet ports can not be used for stacking. Refer to Stacking
the Switches, page10 for additional details.
2

6 500 Series Stackable Managed Switches
Power over Ethernet (PoE) Considerations
If your switch is one of the PoE models, consider the following table for
specific information:
NOTE The switch can deliver a maximum of 15.4 Watts to any 10/100
Gigabit PoE port. SF500-24MP, SF500-48MP, SG500X-24MPP, and
SG500X-48MP can deliver a maximum of 30 Watts to any PoE port.
WARNING The switch is to be connected only to PoE networks without
routing to the outside plant.
CAUTION Considerthefollowingwhenconnectingswitchescapableof
supplying PoE:
The PoE models of the switches are PSE (Power Sourcing
Equipment) that are capable of supplying DC power to
attachingPD(PoweredDevices).ThesedevicesincludeVoIP
500 Series Switches with Power Over Ethernet
Model Power
Dedicatedto
PoE
Number of
Ports
Supporting
PoE
PoE Standard
Supported
SF500-24P 180 Watt 24 802.3af and 802.3at
SF500-24MP 375 Watts 24 802.3af and 802.3at
SF500-48P 375 Watts 48 802.3af and 802.3at
SF500-48MP 740 Watts 48 802.3af and 802.3at
SG500-28P 180 Watt 24 802.3af and 802.3at
SG500-28MPP 740 Watts 24 802.3af and 802.3at
SG500-52P 375 Watts 48 802.3af and 802.3at
SG500-52MP 740 Watts 48 802.3af and 802.3at
SG500X-24P 375 Watts 24 802.3af and 802.3at
SG500X-
24MPP 740 Watts 24 802.3af and 802.3at
SG500X-48P 375 Watts 48 802.3af and 802.3at
SG500X-48MP 740 Watts 48 802.3af and 802.3at

500 Series Stackable Managed Switches 7
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
powered by AC, they could be powered up as a legacy PD
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 500 Series Stackable
Managed Switch
Before You Begin
Verify the managing computer requirements in the product release notes.
The switch can be accessed and managed by two different methods; over
your IP network using the web-based interface, or by the Command Line
Interface (CLI) through the console port. Using the console port requires
advanced user skills.
Accessing and Managing Your Switch
Use the Web-Based Interface
To access the switch by using the web-based interface, you must know
the IP address the switch is using. The switch uses the factory default IP
address of 192.168.1.254 by default.
3

8 500 Series Stackable Managed Switches
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,
youraccess tothe switchwill belost. You mustenter the newIPaddress
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 through an IP network:
STEP 1Power on the computer and the switch.
STEP 2Set the IP configuration on your computer.
a. If the switch is using the factory default IP address of
192.168.1.254, you must chose an IP address for the computer
in the range of 192.168.1.1-192.168.1.253 that is not already in
use.
b. If the IP addresses is assigned by a DHCP server, make sure
the DHCP server is running and can be reached from the
switch and the computer. It might be necessary 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.UsethecomputerHelpandSupportfunctionalitytosearchfor“IP
Addressing.”
STEP 3Open 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 4Enter the switch IP address in the address bar and press Enter. For
example, http://192.168.1.254.
The Switch Login Page
displays.
STEP 5Enter the default login information:
•Username is cisco
•Default password is cisco (passwords are case sensitive)
STEP 6If 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 login and password are displayed on
the page. Enter a new administrator password and click Apply.

500 Series Stackable Managed Switches 9
CAUTION Make sure that any configuration changes made are saved to
the Startup configuration before exiting from the web-based
interface by clicking on the Save icon. Exiting before you
save your configuration will result in all current changes
being lost the next time the switch is rebooted.
The Getting Started window displays. You are now ready to configure the
switch. Refer to the
Cisco 500 Series Stackable Managed Switch
Administration Guide
for further information.
Use the console port
To configure the switch by using the console port:
STEP 1Connect a computer to the switch console port by using the
provided serial cable.
STEP 2Start a terminal application such as HyperTerminal on the
computer.
STEP 3Configure the utility with the following parameters:
•115200 bits per second (with release 1.2.7 of the firmware,
autobaud detection is enabled by default, so the switch should
detect the speed after you press Enter).
•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 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 6Select Y, and enter a new administrator password.

10 500 Series Stackable Managed Switches
CAUTION Make sure that any configuration changes are saved before
exiting by issuing the command:
copy running-config startup-config
You are ready to configure the switch. Refer to the
Cisco 500 Series
Stackable Managed Switch Administration 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.
Stacking the Switches
Before configuring the switches as a stack, refer to the Cisco 500 Series
Stackable Managed Switch Administration Guide for additional details.
Refer to the front panel graphics in External Features of the Cisco 500
Series Stackable Managed Switch, page16 to help with the stack port
descriptions and supported modules.
The following graphic shows the stack ports to assist in connecting the
devices in a stack:
The 500X model is on the left, and the Sx500 model is on the right. The
SG500XG-8F8T model is shown below.
SFP G27/S3 G28/S4
1G/5G
G26/S2G25/S1
LINK/ACT GIGABIT
LINK
ACT
LINK
ACT
Cisco Small Business
Cisco Small Business
LINK
ACT XG
XG1 XG2 XG3
/S1
XG4
/S2
5G
Stack
370010
G1
LINK/ACT
LINK
ACT
9101112
XG
LINK
ACT
13 14 15 16
XG GIGABIT
370009

500 Series Stackable Managed Switches 11
TIP The default stack ports on the 500X are XG3/S1 and
XG4/S2. If the correct module is plugged into XG3/S1 and
XG4/S2, the switch should be able to detect the connection
and configure the speed according to the module capability
without any manual configuration. The 5G/S1 and 5G/S2
interfaces on the 500X need to be configured manually via
the CLI or web-based interface in order to utilize these ports
as stack ports.
TIP The default stack ports on the 500 are S3 and S4. If the
correct module is plugged into S3 and S4, the switch should
able to detect the connection and configure the speed
according to the module capability without any manual
configuration.TheS1andS2interfacesonthe500needtobe
configured manually via the CLI or web-based interface in
order to utilize these ports as stack ports.
TIP Any of the ports on the SG500XG-8F8T switch can be used as a
stack port.
WARNING The stack ports must be either configured with the same port
speed or have the same speed capability on the module/cable
plug in. If the port speed is configured as auto, then the module
pluggedinto these two ports willneed to have thesamespeed
capability, otherwise the switch will not be able to form as a
stack with multiple units.
By default, the switch is in stack mode with a stack Unit ID automatically
assigned. A stack can have up to eight 500 series switches in it.
Switches in the same stack are connected together through their stack
ports. Depending on the type of stack ports and the desired speed, you
may need regular Cat5 or better Ethernet cables and/or Cisco approved
modules or cables for the 500 Series switches.
The default stack ports on a switch function as regular Ethernet ports only
by configuring them to do so, or if the switch is configured to operate in
standalone mode. You cannot mix the stack speeds between the switches
or ports.
If you manually assign a Unit ID to one unit, you should manually assign Unit
IDs to
all units. Using both system-assigned and manually-assigned IDs in
your network can impact system performance.

12 500 Series Stackable Managed Switches
Changing the stack mode of a switch requires a reboot of the switch.
Stack Unit Modes
Devices can operate in one of the following Stack Unit modes:
•Standalone—The device is not connected to any other device and
does not have a stack port.
•NativeStacking—A device can connectto other devices of the same
type through its stack ports to form a stack. All units in a native stack
must be of the same type (either all Sx500s or all SG500Xs).
• Basic Hybrid—A device can connect to other devices from the 500
series to form a stack. In this mode, VRRP and/or RIP are not supported.
The GUI for Sx500 devices is displayed, even if the stack master is
SG500X, since the feature set is that of the Sx500.
In this mode, anytype of device can function as master orbackup. Only
5G stacking ports can be used as stack ports.
• Advanced Hybrid—A device can connect to other devices from the
500seriestoformastack.Inthismode,VRRPand/orRIParesupported.
Only SG500X devices can function as master/backup, and auto
numbering of units is not supported.
Sx500 devices can only be slaves, therefore up to six Sx500 units can
be stacked with two SG500X devices.
• Advanced Hybrid XG — A device in the SG500XG series can connect
toother SG 500X devices to form a stack, with the SG500X featureset.
In this mode, VRRP and/or RIP are supported.
Any device can function as master, backup, or slave.

500 Series Stackable Managed Switches 13
Stack Configuration Options
The following describes some typical stack configurations:
Example Stacking Scenarios
NOTE Speeds listed below that use xx -auto mean auto-detection of the
SFP speed.
For the SG500X-24, SG500X-24P, SG500X-24MPP, SG500X-48, and
SG500X-48P, and SG500X-48MP devices, the following information
applies:
Stacking Option One (default option):
•Ports XG3/S1 and XG4/S2 are configured as stack ports
–Speed—1G,10G,1G/10G-auto
–5Gisnotavailable
Possible Stack Configuration Stack Ports Speed
SG500Xs in Native Stacking mode. 1G/10G or 1G/5G
Sx500s in Native Stacking mode. 1G/5G (default) or 1G Copper/
SFP (Combo)
SG500Xs and Sx500s in Basic
Hybrid mode, where either device
can serve as master, backup, or slave.
1G/5G
SG500Xs and Sx500s in Advanced
Hybrid mode, without backup.
•Master:SG500X
•Slaves:Either type of device
1G/5G
SG500Xs and Sx500s in Advanced
Hybrid mode.
•Master:SG500X
•Backup:SG500X
•Slaves:Either type of device
1G/5G
SG500XGs in Native Stacking mode. 10G copper/SFP+
SG500XGs and SG500Xs in
Advanced Hybrid XG mode, where
either device can serve as master,
backup, or slave.
SG500X: SFP+
SG500XG:10G copper/SFP+

14 500 Series Stackable Managed Switches
•Ports XG1 and XG2 are available as standard network ports
–Speed—1Gor10G
Stacking Option Two:
•Ports XG3/S1 and XG4/S2 are not available
•Port S1, S2 and 5G are configured as stack ports
–Speed—1G,5G,1G/5G-auto
•Ports XG1 and XG2 are available as standard network ports
–Speed—1Gor10G
Non-Stacking standalone option:
•Ports XG3/S1 and XG4/S2 available as standard network ports
–Speed—1Gor10G
•Port S1, S2 and 5G are not available
•Ports XG1 and XG2 are available as standard network ports
–Speed—1Gor10G
For the SF500-24, SF500-24P, SF500-24MP, SF500-48, SF500-48P,
SF500-48MP, SG500-28, SG500-28P, SG500-28MPP, SG500-52, SG500-
52P, and SG500-52MP devices, the following information applies:
Stacking Option One (default option):
•Ports S3 and S4 are configured as stack ports
–Speed—1G,5G,1G/5G-auto
•Ports S1 and S2 are available as standard network ports
– Speed—1G or 100M
•Port S1/SFP, S2/SFP are available as standard network ports
– Speed—1G or 100M
NOTE Thesetwoconnectionoptions(S1andS2orS1/SFPandS2/SFP)
cannotrunatthesametime,theyareconfiguredasoneortheother.Any
connections using the SFP ports take precedence over the other
combination ports.
Stacking Option Two:
•Ports S1/SFP and S2/SFP are configured as stack ports
–Speed—1G

500 Series Stackable Managed Switches 15
•Ports S3 and S4 are available as standard network ports
–Speed—1G
Non-Stacking standalone option:
•Port S1/SFP, S2/SFP are available as standard network ports
– Speed—1G or 100M
•Ports S3 and S4 are configured as standard networking ports
–Speed—1G

16 500 Series Stackable Managed Switches
External Features of the Cisco 500
Series Stackable Managed Switch
This section describes the exterior of the switches including ports, LEDs,
and connectors.
Front Panel
The ports and LEDs are located on the front panel of the switch.
500X Left Side
500 Left Side
SG500XG-8F8T Left Side
4
SG500X-24P 24-Port Gigabit with 4-Port 10-Gigabit PoE Stackable Managed Switch
1
1
2
3
4
13 2 14
PoE
LINK
ACT
Master
Fan
370001
System
Reset
Stack ID
SG500-28P 28-Port Gigabit PoE Stackable Managed Switch
1
1
2
3
4
13 2 14
PoELINK
ACT
Master
Fan
370006
System
Reset
Stack ID
SG500XG-8F8T 16-Port 10-Gigabit Stackable Managed Switch
1
2
3
4
XG
12 34
LINK
ACT
Master
Fan
System
Reset
Stack ID
370008

500 Series Stackable Managed Switches 17
500X Right Side
500 Right Side
SG500XG-8F8T Right Side
RJ-45 Ethernet Ports—Use these ports to connect network devices, such
as computers, printers, and access points, to the switch. Standard Ethernet
ports can not be used to stack the switches.
SFP (if present)—The small form-factor pluggable (SFP) are connection
points for modules, so the switch can link to other switches. These ports
are also commonly referred to as miniGigaBit Interface Converter
(miniGBIC) ports. The term SFP will be used in this guide.
•SFP ports are compatible with Cisco modules MGBSX1, MGBLH1,
MGBLX1, MGBBX1, MFELX1, MFEFX1, and MFEBX1, as well as other
brands of modules.
•Cisco SFP+ optical modules that are supported in the 500X switches
are: SFP-10G-SR, SFP-10G-LRM, and SFP-10G-LR.
370002
Cisco Small Business
LINK
ACT XG
XG1
11 23 12 24
XG2 XG3
/S1
XG4
/S2
5G
Stack
G26/S2G25/S1
LINK/ACT GIGABIT
SFP G27/S3 G28/S4
1G/5G
LINK
ACT
LINK
ACT
Cisco Small Business
11 23 12 24
370007
G1
LINK/ACT
LINK
ACT
9101112
XG
LINK
ACT
13 14 15 16
XG GIGABIT
370009

18 500 Series Stackable Managed Switches
•The 500 and 500X switches support the following SFP+ Copper Cable
modules for stacking: SFP-H10GB-CU1M, SFP-H10GB-CU3M, and
SFP-H10GB-CU5M.
•SFP interface is a combination port, shared with one other RJ-45
interface. When the SFP is active, the adjacent RJ-45 port is disabled.
•TheLEDs ofthe sharedRJ-45 port lighttorespond tothe SFP interface
traffic.
Front Panel LEDs
Master—(Green) Lights steady when this switch is a stack master.
Fan—(Green) Lights steady when the cooling fan is operational, blinks
green if there is a failure.
System LED—(Green) Lights steady when the switch is powered on, and
flashes when booting, performing self tests, or acquiring an IP address. If
the LED flashes Amber, the switch has detected a hardware failure.
Stack ID—(Green) Lights steady when this switch is stacked and the
corresponding number indicates its Stack ID. When a switch has a Stack ID
greater than 4, a combination of the LEDs will light up to add up to the
Stack ID. For example, Stack ID #5 is LED#1 and LED#4, Stack ID #8 will
show LED#1, LED#3 and LED#4.
NOTE The above LEDs are found on each model of the switch. The
following LEDs are only present on switch models that have those
capabilities:
LINK/ACT LED—(Green) Located on the left of each port. The light is
steady when a link between the corresponding port and another device is
detected. Flashes when the port is passing traffic.
PoE (if present)—(Amber) Located on the right of a PoE 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.
XG LED (if present)—(Green) Located on the right of a 10 G port. Lights
steady when another device is connected to the port, is powered on, and a
10 G link is established between the devices. When the LED is off, the
connection speed is under 10 G or nothing is cabled to the port.

500 Series Stackable Managed Switches 19
Gigabit LED (if present)—(Green) Located on the right of a GE 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.
SFP (if present)—(Green) Located on the right of a GE port. Lights steady
when a connection is made through the shared port. Flashes when the port
is passing traffic.
Reset Button
The switch can be reset by inserting a pin or paper clip into the reset
button opening on the front panel of the switch. See Returning the Device
to the Factory Default Settings and Troubleshooting, page19 for
details.
Back Panel
The power port and console port are located on the back panel of the
switch.
Power—Connects the switch to AC power.
Console—Connects a serial cable to a computer serial port so that it can
be configured by using a terminal emulation program.
Returning the Device to the Factory
Default Settings and Troubleshooting
To use the Reset button to reboot or reset the switch, do the following:
•To reboot the switch, press and hold the Reset button for less than 10
seconds.
•To restore the switch configuration to the factory default settings:
1. DisconnecttheswitchfromthenetworkordisableallDHCPservers
on your network.
2. With the power on, press and hold the Reset button for more than
10 seconds.
CONSOLE
POWER
100-240V-
4A 50-60Hz
196710
5

20 500 Series Stackable Managed Switches
Troubleshoot Your Connection
If you cannot access your switch from the web-based interface, the switch
might not be reachable from your computer. You can test network
connections by using ping on a computer running Windows:
STEP 1Open the Terminal application.
STEP 2Enter the ping command and the switch IP address. For
example ping 192.168.1.254 (the default IP address of the 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
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 terminal
application is configured with the correct parameters.
Wrong IP address:
Make sure you are using the correct IP address for the switch. You can
determine thestatus of how the switch obtained the currentIP address
by observing the system LED. You can determine the current IP
address of the switch through the console port interface by using the
CLI, or from your network administrator.
Make sure that no other device is using the same IP address as the
switch.