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Add a Non-root Switch for the Catalyst 4500 Switch
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Introduction
This document explains on how to add a non-root switch to your network
after you have installed and configured Catalyst 4500 as your root switch. The
Catalyst 4500 switch is the first switch, the "root" switch in the network. All
other non-root switches are connected to the root switch.
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Requirements
To perform the steps described in this document, you need to have these
items:
In addition you must:
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LAN Addressing Worksheet
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Switch Port Assignments Worksheet
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Connect to the New non-root Switch
Follow these steps to connect your PC to the switch for
configuration:
Change the IP Address on the PC
Your PC must have a compatible IP address in order to communicate with
the switch. Before you change your TCP/IP settings, make a note of your current
settings.
To configure the IP address on your PC, follow these
steps:
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Go to the Start > Settings
> Control Panel > Network and Dialup
Connections.
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Right-click on your network connection icon and choose
Properties.
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Select the Internet Protocol (TCP/IP) and click
Properties.
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Enter the IP address 10.0.0.2 with a subnet mask
of 255.255.255.0.
Note: For more instructions on how to configure the IP address on your
PC, refer to
Configure
an IP Address on Your PC.
Put the Non-root Switch in Express Setup Mode
Follow these steps to put the switch in setup mode:
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Press and hold the Mode button for approximately two seconds or
until all the LEDs next to the Mode button except for the RPS LED turns green.
On the 2940 switch, hold the Mode button until all the LEDs over the Mode
button turns green. On the 2960 switch, hold the Mode button until all the LEDs
except the RPS and SPEED turns green.
Note: The model illustrated is a Catalyst 2950. Your switch may look
slightly different.
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When all LEDs except the RPS LED turns green, release the Mode
button. All the LEDs except the RPS LED must remain green. On the 2940 switch,
all the LEDs must remain green. On the 2960 switch, all the LEDs except the RPS
and SPEED must remain green.
If the LEDs begin to blink after you have held the Mode button for
two seconds or if you do not get the required LEDs to remain lit, then the
switch which has an existing configuration does not enter the setup mode. Refer
to Troubleshoot the Procedure for
assistance.
Connect the PC to the Switch
Follow these steps to connect your PC to the switch:
Note: For configuration, the switch must be connected only to the PC.
Verify that no other devices are connected to the switch.
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Connect one end of a straight-through Ethernet cable to Ethernet
port 20 on the front panel of the switch. If you have a 2940 switch, connect
one end of a straight-through Ethernet cable to any Ethernet port on the front
panel of the switch.
Note: Port 1 is typically the management port. For VLAN configuration
you must not use port 1 as the management port for setup.
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Connect the other end of the Ethernet cable to the Ethernet port on
your PC.
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Verify that the port status LEDs turns green on both connected
Ethernet ports.
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Configure the New Switch
Follow these steps to add a new switch to your network:
Connect to the Switch with CNA
Follow these steps to log in to the switch with CNA:
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To launch CNA, go to Start >
Programs > Cisco Network Assistant >
Cisco Network Assistant.
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When the Connect window opens, type
10.0.0.1 in the Connect To field, and click
Connect.
Note: If you are unable to connect to the switch with CNA, see
Troubleshoot the Procedure for help.
Create a VLAN
CNA operates in two modes: Expert View and Guide View. The default view
for CNA 3.0 is Expert View. To ensure that you are in Expert View, click the
Expert button on the far right of the toolbar.
Follow these steps to create a VLAN on the switch:
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On the Features tab, click Configure >
Switching > VLANs.
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In the VLANs window, click the Configure
VLANs tab.
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Click Create to open the Create VLAN
window.
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Enter the VLAN information for the new VLAN:
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Enter 20 in the VLAN ID field.
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Enter Default in the VLAN Name
field.
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Choose Active from the VLAN Status
list.
Click OK.
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The two VLANs appear in the VLANs
window.
Click Apply, and click OK.
Configure VTP
Follow these steps to configure the VLAN trunking protocol (VTP)
server:
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On the Features tab, click Configure >
Switching > VLANs.
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In the VLANs window, click the Configure
VTP tab.
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Choose Client from the VTP Mode Control
list.
Click OK to save the VTP information.
Configure the Host Name
The host name identifies the switch. Follow these steps to configure or
change the host name on the switch:
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On the Features tab, click Configure >
Device Properties >
Hostname.
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In the New Hostname field, type the Hostname. Select the name of
your switch listed in field S1 of the Switch Port Assignments Worksheet. For
example, switch 2 is named switch2.
Click OK.
Configure Passwords
Follow these steps to create or change passwords on the switch:
Note: Refer to
Password
Security for guidelines on how to create secure passwords.
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On the Features tab, click Configure >
Device Properties > Users and
Passwords.
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In the Users and Passwords window, click the
Local Username/Password tab.
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Click Create.
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Enter the administrative user name and password information:
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Enter admin in the Username
field.
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In the password fields, enter the password, and enter the
password again to confirm. Use the admin password that you entered in field S64
of the Switch Port Assignments Worksheet.
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Use the Privilege Level list to set the access level to
15. This level has read-write access; all user levels under 15
have read-only access.
Click OK.
Click Apply. The user information appears in the
Username list.
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Click the HTTP Authentication tab.
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Click the Local Username/Password radio button,
and click Apply.
Note: If you receive an alert message that you have changed your
authentication values, click Yes to continue. You need not
relaunch the CNA.
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Click the Enable Password
tab.
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Click Create.
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In the password fields, enter the enable password, and enter the
password again to confirm.
Click OK. Use the enable password that you entered
in field S64 of the Switch Port Assignments Worksheet.
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Click OK in the Users and
Passwords window.
Note: If you receive an alert message that you have changed your
authentication values, click Yes to continue.
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Click OK. When the Network
Authentication window appears, log back in to CNA as the admin user.
Use the admin password that you entered in field S64 of the Switch Port
Assignments Worksheet.
Set the System Time
Follow these steps to configure the clock time zone and the Network
Time Protocol (NTP) server:
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On the Features tab, click Configure > Device Properties
> System Time.
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In the System Time window, click
Modify.
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In the Modify System Time window, enter the system
time information.
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Use the Time Zone drop-down list to select the correct time zone
for your location. Use the system time that you entered in field B13 in the
Internet Worksheet.
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In the Auto Daylight Saving Adjustment drop-down list, select
enable.
Note: You need not manually enter the current time because the switch
uses the router as a time server.
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Click OK.
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In the System Time window, click
NTP.
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In the Network Time Server window, next to IP
Address: field, enter the IP address of the router that you entered in field
L6A of the LAN Addressing Worksheet, and click
OK.
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Click OK in the Info: Network Time
Server window.
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Click Apply and click OK in the
System Time window.
Configure Port Settings
Follow these steps to configure Description, Duplex/Speed and Port Fast
settings on your switch ports:
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On the Features tab, click Configure >
Ports > Port
Settings.
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Follow these steps to configure a descriptive name for the ports or
interfaces of the switch:
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Click on the Configuration Settings tab.
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Click the Description field for Fa0/1 and enter the brief text
description of the port. For example the first port of the switch Fa0/1 is
connected to Router port hence, enter the text description for that port as
Connected to Router.
Click Apply.
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To enable or disable a switch port, click Status
field for the respective port and select enable or
disable from the drop-down list. For example to enable port
Fa0/2 which is in administratively shut down mode, click on Status for Fa0/2
and select enable from drop-down list.
Click Apply.
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To configure Duplex/Speed setting for the port, click on
Duplex or Speed field for the respective port
and select the appropriate value form the drop-down list. For example, to
configure a switch port duplex/speed settings for Fa 0/4 port connected to a 10
Mbps Hub, click the Speed field and select
10. Click on Duplex field for the same port
and select half.
Click Apply.
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To enable Port Fast on a port, click Port Fast
field for the respective port and select enable from
the drop-down list. To disable Port Fast, select disable from
the drop-down list. You can choose to enable it for only static-access ports or
for both static-access ports and trunk ports.
Click Apply and click OK.
Note: Use the table to see information on various Switch Port settings
that can be configured on your switch.
Port Settings
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Explanation
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Description
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Text description of the port. Click
Describe in the Port Settings window to
describe multiple ports.
You cannot use the ? and / characters.
If you select more than one port, this field is not
available.
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Status
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Setting to enable or disable the port, which can be
different from the runtime setting. For example, if no device is connected to a
port, it can be administratively enabled with a runtime status of DOWN.
If you change other settings on a disabled port, they do
not take effect until you enable the port.
When you disable a port, a linkdown trap is sent to the
management station if you configure an SNMP manager.
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Duplex
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Follow these steps to set for duplex: full duplex, half
duplex, or auto
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The default setting for Gigabit Ethernet and GigaStack
GBIC ports is auto. These ports automatically match the duplex capability of an
attached device.
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To set a duplex value other than auto, the speed value
must be other than auto. The duplex value must be auto if the port speed is set
to auto and if the port can run at a speed of 1000 Mbps.
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GigaStack GBIC stack connections operate in half-duplex
mode.
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Point-to-point GigaStack GBIC port connections operate in
full-duplex mode.
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Speed
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Settings for the 10/100-Mbps and 10/100/1000-Mbps ports:
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10 (Ports run at a forced speed of 10 Mbps.)
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100 (Ports run at a forced speed of 100 Mbps.) • 1000
(Ports run at a forced speed of 1000 Mbps.)
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auto (Ports autonegotiate and advertise all available
speeds.) The default setting for 10/100- and 10/100/1000-Mbps ports is auto.
Ethernet ports can automatically match the transmission speed of an attached
device.
The default setting for 10/100- and 10/100/1000-Mbps ports
is auto. Ethernet ports can automatically match the transmission speed of an
attached device.
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Port Fast
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Immediately brings a port from the blocking state into the
forwarding state by eliminating the forwarding delay (the amount of time a port
waits before changing from its STP learning and listening states to the
forwarding state).
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Configure the IP Address
Configure VLAN 20 with the IP address that you entered in field L9 of
the LAN Addressing Worksheet.
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On the Features tab, click Configure >
Device Properties > IP
Addresses.
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On the Interface Configuration tab, enter the IP address
information.
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Click the IP Address field for VLAN 20, and enter the IP address
of the switch that you entered in the LAN Addressing Worksheet (for example,
the IP address for switch #2 is in field L9).
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Select 255.255.255.0 from the Subnet Mask
list.
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Click Apply.
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Click the Device Configuration
tab.
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Enter the default gateway information for the switch:
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In the Default Gateway field, enter the IP address for the
router that you entered in field L6A of the LAN Addressing
Worksheet.
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In the Domain Name field, enter the domain name for the device
that you entered in field B48 of Internet Worksheet.
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Uncheck the Enable Domain Lookup check
box.
Click Apply, and click OK.
Configure Smartports
In order to connect your non-root switch to the CE 500 root switch, you
must first configure port 1 as the switch port.
Follow these steps:
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On the Features tab, click Configure >
Smartports. A window displays with a graphic illustration of
the switch.
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Click port 1 to select the port, and click
Modify.
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In the Modify Port Roles window, configure the
port role and attributes.
Click OK.
The port is assigned with the desktop macro, which appears on the
switch illustration.
Click Apply in the Smartports
window.
Note: If you receive a warning message that modified ports sets to
factory default, click Yes to continue.
Click OK in the Smartports
window.
Save Your Current Configuration
Follow these steps to save your configuration.
Note: When you save your configuration, CNA disconnects from the switch.
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On the Features tab, click Configure >
Save Configuration.
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In the Save Configuration window, use the Hostname
list to select the name of your switch listed in field S1 of the Switch Port
Assignments Worksheet. For example, switch 2 is named
switch2.
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Click Save. This causes the switch to exit setup
mode and disconnect from your PC. All the LEDs on the switch are made to shut
off except the SYS and STAT LEDs, which remains green.
Close the CNA application.
Reconnect to the Switch
Follow these steps to reconnect to the switch on a different
port:
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Unplug the Ethernet cable from port 20, and insert the cable into
port 1.
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Change the TCP/IP setting on your PC to match the switch (for
example, 192.168.10.50). Right-click on the network connection icon in your
system tray and open the network connections window. Right-click on the
Local Area Connection icon and choose
Properties. Select Internet Protocol
(TCP/IP), click Properties, and enter the new IP
address.
Note: You need to restart your computer after you change the IP
address.
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Launch CNA. When the Connect window appears, enter
the switch IP address from the LAN Addressing Worksheet (for example, field L9
for switch #2), and click Connect.
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When the Network Authentication window appears,
log into the switch with the admin user ID and password.
Configure the Remaining Ports
Follow these steps to configure the rest of the ports on the
switch:
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On the Features tab, click Configure >
Smartports. A window displays with a graphic illustration of
the switch.
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Drag the slider over ports 10 through 24 (or 48) to highlight the
ports with a yellow outline.
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Click Modify.
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In the Modify Port Roles window, configure the
port type and attributes.
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Click Apply in the Smartports
Setup window.
Note: If you receive a warning message that modified ports will be set
to factory default, click Yes to continue.
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Click OK in the Smartports Setup
window.
Note: If you receive a warning message that modified ports will be set
to factory default, click Yes to continue. The remaining ports
are now configured.
Configure Spanning Tree Protocol (STP)
Spanning-Tree Protocol (STP) prevents loops from being formed when
switches are interconnected via multiple paths. To make the Catalyst 4500
switch as your root switch you must configure the non-root switch as
follows:
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On the Features tab, click Configure >
Switching > STP.
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In the STP window, click Bridge
Parameters.
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Click the Priority field of VLAN 20 and from the Priority list
select the value as 40960.
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Repeat the step 3 to increase the priority value as 40960 for all
the VLANs configured in the non-root switch.
Click Apply and click OK.
Save Your Completed Configuration
Follow these steps to save your configuration:
Note: When you save your configuration, CNA will disconnect from the
switch.
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On the Features tab, click Configure >
Save Configuration.
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In the Save Configuration window, use the Hostname
list to select the name of your switch listed in field S1 of the Switch Port
Assignments Worksheet. For example, switch 2 is named
switch2.
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Click Save. You can now close the CNA
application.
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To disconnect your PC from the switch, remove the Ethernet cable
from the ports on the PC and the switch. You need to restore the TCP/IP
settings on your PC to the original values. Refer to
Configure
an IP Address on Your PC for instructions.
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Connect the Non-root Switch to the Root Switch
You need a crossover cable to connect the new switch to the root
switch. Refer to
Cable
Descriptions for more information on cable types.
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To connect your switch to a repeater or another switch, use a
crossover Ethernet cable.
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To connect your switch to a server, workstation, or router, use a
straight-through Ethernet cable.
Follow these steps to connect the new switch to the root switch:
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Connect one end of the crossover Ethernet cable to Ethernet port 2/6
on the root switch. If your switch does not have a switch module installed in
slot 2, use the slot and port numbers available on your switch, starting with
the second available Ethernet port.
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Insert the other end of the crossover Ethernet cable to port 1 on the
new switch.
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Wait for approximately thirty seconds, and verify whether the port
status LED on the switch turns green. If the LED is off and does not turn
green, see Troubleshoot the Procedure for
help.
Note: To add additional switches, use ports 2/7, 2/8, and 2/9 on the root
switch.
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Next Step
You have completed the setup of your non-root switch.
To make further changes to your switch, refer to the
Switch
Support Page.
To configure other devices in your network, refer to the
Configuration
Overview Page.
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Troubleshoot the Procedure
This section provides information about common problems that you may
encounter. If this information does not solve your problem, contact the
SMB
Technical Assistance Center (SMB TAC) for assistance.
Problem
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Cause(s) and Suggested Solution(s)
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You are unable to put the switch into setup mode because the
four Mode LEDs begin to blink after you have held the Mode button for two
seconds or you are unable to make the four LEDs to remain lit.
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The switch has an existing configuration on it. To clear the
current configuration from the switch, follow these steps:
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Press and hold the Mode button. The switch LEDs will begin to
blink for about two seconds.
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Continue to hold the Mode button for approximately eight more
seconds, or until the LEDs stops blinking.
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Release the Mode button. The switch then
reboots.
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Wait for one minute for the power-on self test (POST) to
complete successfully. When POST is complete the SYST and STAT LEDs displays
green.
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Press and hold the Mode button for approximately two seconds,
or until all LEDs next to the Mode button except for the RPS LED which turns
green.
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You connect a PC directly to the switch, but you are unable to
establish a connection with CNA.
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Ensure that the power-on self test (POST) is completed
successfully. The SYST and STAT LEDs must be green.
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After you connect the switch to the PC, you must wait for
thirty seconds before you try to re-connect.
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Verify the IP Address on your PC is
10.0.0.2.
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Ensure that you type the correct IP address in the
Connect window. Retype 10.0.0.1, and click
Connect.
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Ensure that you use the proper cable. You must use a straight
through cable, not a crossover cable. Refer to the
Cable
Descriptions for more
information.
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You connect the switch to your network, but you are unable to
establish a remote connection with CNA.
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Ensure that you type the correct IP address in the
Connect window. Retype the IP address that you assigned to the
switch, and click Connect.
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Ensure that you use the proper cable to connect your switch
to a server, workstation, or router, use a straight-through Ethernet cable. To
connect your switch to a repeater or another switch, use a crossover Ethernet
cable. Refer to
Cable
Descriptions for more information.
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Ensure that the switch is connected to a subnet that matches
the IP address you assigned.
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You connect the switch to another device on your network, but
the port status LED is off.
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Ensure that the target device is powered
on.
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Ensure that you use the correct cable to connect to the
target device. Refer to
Cable
Descriptions for more information.
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Ensure that the port adapter on the target device operates
properly.
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Related Information
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