Catalyst 3850 Switch Getting Started Guide
• About This Guide, page 1
• Shipping Box Contents, page 2
• Running Express Setup, page 3
• Managing the Switch, page 7
• Installing the Switch, page 10
• Securing the AC Power Cord (Optional), page 14
• Connecting the StackWise Cables, page 14
• Connecting the StackPower Cables (Optional), page 16
• Installing the Network Module (Optional), page 17
• Connecting the Switch Ports, page 18
• Troubleshooting, page 20
• Obtaining Documentation and Submitting a Service Request, page 21
• Related Documentation, page 22
About This Guide
This guide describes how to use Express Setup to initially configure your Catalyst 3850 switch. The
guide also covers switch management options, basic rack-mounting, stacking, port and module
connections, and troubleshooting.
For more installation and configuration information, see the Catalyst 3850 documentation on Cisco.com.
For system requirements, important notes, limitations, open and resolved bugs, and documentation
updates, see the release notes on Cisco.com.
When using the online publications, refer to the documents that match the Cisco IOS software version
running on the switch.
For translations of the warnings that appear in this publication, see the Regulatory Compliance and
Safety Information for the Catalyst 3850 Switch on Cisco.com.
Cisco Systems, Inc.
www.cisco.com
Shipping Box Contents
Product
Documentation
and Compliance
6
7
8
9
4
14
10
11
15
2
13
3
12
5
1
Catalyst 3850 48 PoE+
C3850-NM-4-1G
ACTV
Note The illustrations of the Catalyst 3850 switch are not intended to depict any particular color scheme. They
are provided as a reference for various features and markings described within this guide.
Shipping Box Contents
The shipping box contains the model of the switch you ordered and other components needed for
installation, as shown in Figure 1. Some components are optional, depending on your order.
Note Verify that you have received these items. If any item is missing or damaged, contact your Cisco
representative or reseller for instructions.
Figure 1 Components delivered in the shipping box
1 Catalyst 3850-48P-L1 switch with optional network
module
2
(power supply and fan modules not shown)
9 Eight number-8 Phillips flat-head screws
3
2 AC power cord 10 Cable guide
3 Product documentation and compliance document 11 M4.0 x 20mm Phillips pan-head screw
4 Four rubber mounting feet 12 (Optional) RJ-45 console cable
5 Ground lug screw and ring terminal 13 (Optional) USB console cable
6 Two 19-inch mounting brackets 14 (Optional) StackWise cable (0.5-meter, 1-meter, or 3-meter)
2
2
7 Four number-12 pan-head screws 15 (Optional) StackPower cable (0.3-meter or 1.5-meter)
8 Four number-10 pan-head screws
1. Catalyst 3850-48P-L switch is shown. Your switch model might look different.
2. Item is orderable.
3. Fan modules are installed in the switch. Power supply modules are not installed in the switch.
Catalyst 3850 Switch Getting Started Guide
2
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2
2
Running Express Setup
Use Express Setup to enter the initial IP information. This action enables the switch to connect to local
routers and the Internet. You can access the switch through the IP address for further configuration.
Note To use the CLI-based initial setup program, see Appendix C, “Configuring the Switch with the
CLI-Based Setup Program,” in the switch hardware guide.
You need this equipment:
• PC or laptop with Windows Vista, XP, or 2000
• Browser (Internet Explorer 5.5, 6.0, 7.0, Firefox 1.5, 2.0, and 3.0) with JavaScript enabled
• Straight-through or crossover Category 5 Ethernet cable
Note Before running Express Setup, disable any pop-up blockers or proxy settings in your browser and any
wireless client running on your PC or laptop.
Running Express Setup
Step 1
Step 2
Step 3
Make sure that nothing is connected to the switch.
ACTV
01X
12X
13X
Catalyst 3850 48 PoE+
36X
37X
C3850-NM-4-1G
13X
333407
During Express Setup, the switch acts as a DHCP server. If your PC or laptop has a static IP address, temporarily
change your PC or laptop settings before you use DHCP.
Note Write down the static IP address. You will need this IP address in Step 14.
Install the power supply modules. See the “Power Supply Installation” chapter in the Catalyst 3850 Switch Hardware
Installation Guide for instructions.
http://www.cisco.com/go/cat3850_hw
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Catalyst 3850 Switch Getting Started Guide
3
Running Express Setup
Step 4
Step 5
Step 6
Power the switch.
AC power switches: Plug the AC power cord into the
switch power supply and into a grounded AC outlet.
DC power switches: See the wiring instructions in the
CONSOLE
MGMT
PWR-C1-715WAC
PWR-C1-715WAC
333409
Catalyst 3850 Switch Hardware Installation Guide on
Cisco.com:
http://www.cisco.com/go/cat3850_hw
Observe the POST results. Approximately 30 seconds after the switch powers on, it begins the power-on self-test
(POST), which can take up to 5 minutes to complete.
During POST, the SYSTEM LED blinks green. When POST is complete, the SYSTEM LED turns solid green. The
ACTV LED is green if the switch is acting as the active switch.
Note Before going to the next step, wait until POST is complete.
Troubleshooting:
If the SYST LED does not turn solid green, or turns amber, the switch failed the POST. Contact your Cisco
representative or reseller.
Press and hold the Mode button until all the LEDs next to
the Mode button turn green.
You might need to hold the button for more than 3
seconds.
The switch is now in Express Setup mode.
24X
25X
ACTV
Catalyst 3850 48 PoE+
36X
37X
C3850-NM-4-1G
46X
333408
Troubleshooting:
If the LEDs next to the Mode button blink when you press
the button, release it. Blinking LEDs mean that the switch
is already configured and cannot go into Express Setup
mode. For more information, see the “Resetting the
Switch” section on page 21.
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Running Express Setup
Step 7
Step 8
Connect a Category 5 Ethernet cable to a port:
• Any 10/100/1000 or 10/100/1000 PoE+ or
10/100/1000 Cisco Universal Power Over Ethernet
ACTV
(Cisco UPOE) ports on the switch front panel.
• The RJ-45 management port on the switch rear panel.
Connect the other end of the cable to the Ethernet port on
your PC or laptop.
Wait until the port LEDs on the switch and your PC or
laptop or laptop are green or blinking green. Green LEDs
indicate a successful connection.
Troubleshooting:
If the port LEDs do not turn green after about 30 seconds,
make sure that:
• You connected the Ethernet cable to one of the
downlink switch ports (not to the console port).
• You are using an undamaged Category 5 or 6
Ethernet cable.
• The other device is turned on.
Start a browser session on the PC or laptop, and enter the IP address https://10.0.0.1. When prompted, enter the
default password, cisco.
333410
Note The switch ignores text in the username field.
The Express Setup window appears.
Troubleshooting:
If the Express Setup window does not appear, make sure that any browser pop-up blockers or proxy settings are
disabled and that any wireless client is disabled on your PC or laptop.
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Catalyst 3850 Switch Getting Started Guide
5
Running Express Setup
Step 9
Step 10
Step 11
Enter this information in the Network Settings fields:
Note All entries must be in English letters.
• In the Management Interface (VLAN ID) field, the default is 1.
Note We recommend that you use the default VLAN value. During Express Setup, VLAN 1 is the only VLAN on
the switch. 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 switch IP address.
• In the Subnet Mask field, click the drop-down arrow, and select a 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 2 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.
Note You must change the default password, cisco.
(Optional) Enter this information in the Ethernet Management Port Settings fields:
• In the IP Address field, enter the IP address of the Ethernet management port. In the Subnet Mask field, click
the drop-down arrow, and select an IP Subnet Mask.
(Optional) You can enter the Optional Settings information now or enter it later by using the Device Manager
interface.
You can enter other administrative settings in the Optional Settings fields. For example, the optional administrative
settings identify and synchronize the switch for enhanced management. NTP automatically synchronizes the switch
clock with the network clock. You can manually set the system clock if the switch should have different settings.
(Optional) You can select 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.
• 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, reenter 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 change it. When you set the SNMP write community, you can both access and
change 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.
• (Optional) In the Enable IPv6 field, click Enable to enable IPv6 on the switch. The IPv6 field is enabled by
default.
Note Enabling IPv6 restarts the switch when you complete Express Setup.
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Managing the Switch
Step 12
Step 13
Step 14
Step 15
Step 16
Click Submit to save your changes and to complete the initial setup.
After you click Submit:
• The switch is configured and exits Express Setup mode.
• The browser displays a warning message and tries to connect with the earlier switch IP address. Typically,
connectivity between the PC or laptop and the switch is lost because the configured switch IP address is in a
different subnet from the IP address on the PC or laptop.
For more information about Express Setup fields, see the online help for the Express Setup window.
Disconnect the switch from the PC or laptop, and install the switch in your network. See the “Installing the Switch”
section on page 10.
If you changed the static IP address on your PC or laptop in Step 2, change it to the previously configured static
IP address.
See the “Managing the Switch” section on page 7 for information about configuring and managing the switch.
To display Device Manager:
1. Start a web browser on your PC or laptop.
2. Enter the switch IP address, username, and password assigned in Step 9 in the browser, and press Enter.
The Device Manager page appears.
Troubleshooting:
If Device Manager does not appear:
• Confirm that the port LED for the switch port connected to your network is green.
• Confirm that the PC or laptop that you are using has network connectivity by connecting it to a well-known web
server in your network. If there is no network connection, troubleshoot the network settings on the PC or laptop.
• Make sure that the switch IP address in the browser is correct.
• If the switch IP address in the browser is correct, the switch interface LED is green, and the PC or laptop has
network connectivity, continue troubleshooting by reconnecting the PC or laptop to the switch. Configure a
static IP address on the PC or laptop that is in the same subnet as the switch IP address.
When the LED on the switch port connected to the PC or laptop is green, reenter the IP address of the switch in a
browser to display Device Manager. When Device Manager appears, you can continue with the configuration.
Managing the Switch
After completing Express Setup and installing the switch in your network, you can use these options for
configuration:
• Device Manager
• Cisco Network Assistant
• Command-Line Interface
• Other Management Options
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Catalyst 3850 Switch Getting Started Guide
7
Managing the Switch
Device Manager
The simplest way to manage the switch is by using Device Manager in the switch memory. This is a web
interface that offers quick configuration and monitoring. You can access it through a web browser.
Follow these steps:
1. Launch a web browser on your PC or laptop.
2. Enter the switch IP address in the web browser, and press Enter. The Device Manager page appears.
3. Use Device Manager for basic switch configuration and monitoring. Refer to the Device Manager
online help for more information.
Configuration Wizard
The Configuration Wizard is a Web-based controller user interface (UI) that lets you complete the initial
wireless configuration after you configure the IP address, local username, and password or authorization
using the authentication server. Using the Web UI, you can configure the controller, WLAN, and radios
for all initial operations, establish management parameters, set security policies, access software
management commands, configure system logs, and other tasks.
For more information on using the Configuration Wizard, see the switch software configuration guide
on Cisco.com
Cisco Network Assistant
Cisco Network Assistant is a software program that you download from Cisco.com and run on your PC
or laptop. 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.
To use the Cisco Network Assistant:
Step 1 Go to this Web address: http://www.cisco.com/en/US/products/ps5931/index.html
Note You must be a registered Cisco.com user, but you need no other access privileges.
Step 2 Click the Download Software link, and select the version you want to download.
Step 3 Find the Network Assistant installer.
Step 4 Download the Network Assistant installer, and run it. (You can run it directly from the Web if your
browser offers this choice.)
Step 5 When you run the installer, follow the instructions. In the final panel, click Finish.
See the Network Assistant online help and the Network Assistant Getting Started Guide for more
information.
Catalyst 3850 Switch Getting Started Guide
8
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Command-Line Interface
You can enter Cisco IOS commands and parameters through the CLI by using one of these options:
• USB Console Port
• RJ-45 Console Port
• Ethernet Management Port
Note You cannot use the RJ-45 console port and the USB console port at the same time. The USB
console port takes precedence over the RJ-45 port when both are connected.
USB Console Port
Note If you are connecting a Microsoft Windows-based PC or laptop to the switch USB console port, install
a USB device driver before you connect for the first time. See the Catalyst 3850 Switch Hardware
Installation Guide for instructions.
Managing the Switch
Step 1 Connect a USB cable to the PC or laptop USB port. Connect the other end of the cable to the mini-B
Step 2 Start a terminal-emulation program on the PC or laptop.
Step 3 Configure the PC or laptop terminal emulation software for 9600 baud, 8 data bits, no parity, 1 stop bit,
Step 4 Use the CLI to configure the switch. See the Catalyst 3850 Switch Software Configuration Guide and
RJ-45 Console Port
Step 1 Connect the RJ-45-to-DB-9 adapter cable to the 9-pin serial port on the PC or laptop. Connect the other
Step 2 Start a terminal-emulation program on the PC or laptop.
Step 3 Configure the PC or laptop terminal emulation software for 9600 baud, 8 data bits, no parity, 1 stop bit,
Step 4 Use the CLI to configure the switch. See the Catalyst 3850 Switch Software Configuration Guide and
(5-pin-connector) USB port on the switch front panel.
and no flow control.
the Catalyst 3850 Switch Command Reference.
end of the cable to the switch console port on the rear panel.
and no flow control.
the Catalyst 3850 Switch Command Reference.
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Catalyst 3850 Switch Getting Started Guide
9
Installing the Switch
Ethernet Management Port
Step 1 Connect a Category 5 Ethernet cable to the PC or laptop Ethernet port. Connect the other end of the cable
to the management port on the switch rear panel.
Step 2 Start a Telnet session on the PC or laptop.
Step 3 Enter the switch IP address that you assigned using Express Setup.
Step 4 Use the CLI to configure the switch. See the software configuration guide and the command reference.
Other Management Options
Cisco Prime Infrastructure combines the wireless functionality of Cisco Prime Network Control System
(NCS) and the wired functionality of Cisco Prime LAN Management Solution (LMS) with application
performance monitoring and troubleshooting capabilities of Cisco Prime Assurance Manager. For more
information, see the Cisco Prime Infrastructure documentation on Cisco.com.
See the “Accessing Help Online” section on page 21 for supporting documentation.
Installing the Switch
This section describes basic 19-inch rack-mounting. See the Catalyst 3850 Switch Hardware Installation
Guide for other optional bracket information. The illustrations show the Catalyst 3850-48P-L switch.
You can install and connect other Catalyst 3850 switches as shown.
Equipment That You Need
• Phillips screwdriver to rack-mount the switch.
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Catalyst 3850 Switch Getting Started Guide
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Before You Begin
Before installing the switch, verify that these guidelines are met:
• Clearance is maintained so that the LEDs on the front panel can be read.
• AC power cord reaches from the AC power outlet to the rear-panel connector.
• The switch rear panel has a clearance of 4.4 in. (11.1 cm).
• If you are installing a 1100-W power supply module, make sure that the switch is rack-mounted
• Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
• Airflow around the switch and through the vents is unrestricted.
• The temperature around the unit does not exceed 113°F (45°C). If the switch is in a closed or
• Humidity around the switch does not exceed 95 percent.
• Altitude at the installation site is below 10,000 feet.
Installing the Switch
before you install it.
lighting. Make sure the cabling is safely away from other devices that might damage the cables.
If needed, allow one RU space between devices to provide room for cabling.
multirack assembly, the temperature might be higher than normal room temperature.
• For 10/100/1000 fixed ports, cables from the switch to connected devices are not longer than
328 feet (100 meters).
• Cooling mechanisms, such as fans and blowers in the switch, can draw dust and other particles
causing contaminant buildup inside the chassis, which can result in system malfunction. Install the
switch in an environment as free as possible from dust and foreign conductive material (such as
metal flakes from construction activities).
Installation Warning Statements
Translations of these warning statements appear in the Regulatory Compliance and Safety Information
for the Catalyst 3850 Switch document on Cisco.com.
Warning
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of:
113°F (45°C)
Statement 1047
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Warning
Note The grounding architecture of this product is DC-isolated (DC-I).
To prevent airflow restriction, allow clearance around the ventilation openings to be at least:
3 in. (7.6 cm)
Statement 1076
Catalyst 3850 Switch Getting Started Guide
11
Installing the Switch
2
2
2
2
333815
2
2
3
2
2
1
3
Attaching the Brackets
Use four number-8 Phillips flat-head screws to attach the long side of each bracket to the switch in one
of these mounting positions.
Figure 2 Attaching the brackets to the switch
1 Rear-mounting position 3 Front-mounting position
2 Number-8 Phillips flat-head screws
Catalyst 3850 Switch Getting Started Guide
12
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Rack-Mount the Switch
4
2
1
3
333816
ACTV
Use the four number-12 Phillips machine screws to attach the brackets to the rack. Use the black Phillips
machine screw to attach the cable guide to the left or right bracket.
Installing the Switch
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
unit in the rack.
Figure 3 Attaching the brackets to the rack
Statement 1006
1 Phillips machine screw, black 3 Front-mounting position
2 Cable guide 4 Number-12 or number-10 Phillips machine
screws
Install the power supplies modules if needed.
Catalyst 3850 Switch Getting Started Guide
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13
Securing the AC Power Cord (Optional)
Securing the AC Power Cord (Optional)
Make a loop in the power cord and thread it through the power cord retainer. Connect the power cord to
the power supply.
Figure 4 Securing the AC power cord
PWR-C1-715WAC
PS OK
AC OK
AC OK
PS OK
PWR-C1-715WAC
Connecting the StackWise Cables
334332
You can stack the Catalyst 3850 switch with other Catalyst 3850 switches. Before connecting the
StackWise cables, review the “Planning a Switch Data Stack” section in the Catalyst 3850 Switch
Hardware Installation Guide.
Always use a Cisco-approved StackWise cable to connect the switches.
To connect the cable to the StackWise port on the switch rear panel:
Step 1 Make sure that the Cisco logo is oriented at the top-side of the connector as shown in the illustration.
Step 2 Align the connector and connect the StackWise cable to the StackWise port on the switch rear panel and
finger-tighten the screw (clockwise direction).
Step 3 Connect the other end of the cable to the port on the other switch and finger-tighten the screw. Avoid
overtightening the screws.
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Catalyst 3850 Switch Getting Started Guide
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Figure 5 Inserting the StackWise cable into the StackWise port
RESET
CONSOLE
MGMT
1
344510
2
3
Connecting the StackWise Cables
1 Cisco logo 3 Captive screw
2 Captive screw
Caution Removing and installing the StackWise cable can shorten its life. Do not remove and insert the cable
more often than is necessary (installing and removing it up to 200 times is supported).
StackWise Cabling Configurations
This illustration shows a recommended stack configuration with connections using 0.5-meter StackWise
cables.
Note You cannot have a switch stack containing a mix of Catalyst 3850 and Catalyst 3650 switches.
For more configuration examples, see the Catalyst 3850 Switch Hardware Installation Guide on
Cisco.com at: http://www.cisco.com/go/cat3850_hw
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Catalyst 3850 Switch Getting Started Guide
15
Connecting the StackPower Cables (Optional)
334340
CONSOLE
MGMT
CONSOLE
MGMT
CONSOLE
MGMT
CONSOLE
MGMT
PWR-C1-715WAC PWR-C1-715WAC
PWR-C1-715WAC PWR-C1-715WAC
PWR-C1-715WAC PWR-C1-715WAC
PWR-C1-715WAC PWR-C1-715WAC
Figure 6 Example of a StackWise cabling configuration
Connecting the StackPower Cables (Optional)
Always use a Cisco-approved StackPower cable to connect the switches.
Note The Catalyst 3850 ports accept either the yellow or the green end of the StackPower cable.
Align the connector and connect the StackPower cable to the S-PWR port on the switch rear panel and
finger-tighten the screw. Connect the other end of the cable to the port on the other switch and
finger-tighten the screw. Avoid overtightening the screws.
Figure 7 Connecting the StackPower cable to the S-PWR port
AC OK
334330
S-PWR
XPS
S-PWR
AC OK
PS OK
PWR-C1-715WAC
16
Caution Removing and installing the StackPower cable can shorten its life. Do not remove and insert the cable
more often than is necessary.
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StackPower Cabling Configurations
AC OK
C3
PS OK
AC OK
C3
PS OK
You can configure a StackPower stack of up to four switches for either power-sharing or redundancy.
This illustration shows the recommended stack configuration with connections using 0.3-meter
StackPower cables.
For more examples, see the Catalyst 3850 Switch Hardware Installation Guide on Cisco.com at:
http://www.cisco.com/go/cat3850_hw
Figure 8 Example of a StackPower stack configuration
S-PWR 1
XPS
S-PWR 2
S-PWR 1
RESET
MGMT
CONSOLE
RESET
MGMT
CONSOLE
RESET
MGMT
CONSOLE
XPS
S-PWR 2
S-PWR 1
XPS
S-PWR 2
S-PWR 1
XPS
S-PWR 2
Installing the Network Module (Optional)
PWR-C1-715WAC
PS OK
AC OK
PWR-C1-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
C3KX-PWR-715WAC
PS OK
AC OK
RESET
MGMT
CONSOLE
Installing the Network Module (Optional)
The switch accepts a hot-swappable network expansion module that provides SFP (1 Gigabit) and
depending on the model, SFP+ (10 Gigabit) uplink ports.
Note You need a number-2 Phillips screwdriver to install the network module.
334331
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Catalyst 3850 Switch Getting Started Guide
17
Connecting the Switch Ports
C3850-NM-BLANK
333413
333
412
C3850-NM-4-10G
Step 1
Step 2
Loosen the captive screws, and remove the blank
network module cover.
Slide the network module into the opening until the
back of the module faceplate is flush with the switch
faceplate. Tighten the captive screws. For a list of
supported network modules, see the Catalyst 3850
Switch Hardware Installation Guide at:
http://www.cisco.com/go/cat3850_hw
Connecting the Switch Ports
10/100/1000, 10/100/1000 PoE+, or 10/100/1000 Cisco UPOE Ports
When you connect to servers, workstations, IP phones, wireless access points, and routers:
• Use a straight-through, twisted four-pair, Category 5 cable in a 10/100/1000 port.
• Use a crossover, twisted four-pair, Category 5 cable when you connect to other switches, hubs, or
repeaters.
• Connect the other cable end to an RJ-45 port on the other device.
In some switch models, the 10/100/1000 ports support Power over Ethernet (PoE), PoE+, or Cisco
Universal Power Over Ethernet (Cisco UPOE).
• Support for IEEE 802.3af compliant powered devices (up to 15.4 W) PoE
• Support for IEEE 802.3at compliant powered devices (up to 30 W) PoE+
For more details, see the Catalyst 3850 Switch Hardware Installation Guide on Cisco.com.
Note The automatic medium-dependent interface crossover (auto-MDIX) feature is enabled by default. The
switch detects the required cable type for copper Ethernet connections and configures the interfaces. You
can use either a crossover or a straight-through cable for connections to a copper 10/100/1000 module
port on the switch, regardless of the type of connected device.
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SFP and SFP+ Tranceiver Module Ports
333418
C3850-NM-4-1G
Catalyst 3850 48 PoE+
333419
C3850-NM-4-1G
Catalyst 3850 48 PoE+
Use only Cisco SFP transceiver modules with the switch. For a list of supported modules, see the
Catalyst 3850 Switch Hardware Installation Guide. For detailed instructions on installing, removing,
and connecting to SFP transceiver modules, see the SFP and SFP+ transceiver modules documentation.
Connecting the Switch Ports
Step 1
Hold the SFP tranceiver module on the sides, and
insert it into the SPF module slot on the switch until
you feel the connector snap into place.
Note Depending on the model of the switch you
Step 2
Step 3
Connect an appropriate cable to the module port.
Connect the other cable end to the other device.
Verify Port Connectivity
are working with, the four SFP module slots
can be all 1-Gigabit SFP module slots or all
10-Gigabit SFP+ module slots. They can
also be a combination of a pair of SFP
modules slots on the left and a pair of SFP+
module slots on the right. SFP+ module slots
support both SFP and SFP+ modules.
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After you connect a device to the switch port, the port LED turns amber for about 30 seconds while the
switch establishes a link. The LED turns green when the switch and the attached device have a link. If the
LED is off, the device might not be turned on, there might be a cable problem, or there might be a
problem with the adapter installed in the device.
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Troubleshooting
Troubleshooting
This section includes Express Setup troubleshooting, how to reset the switch, how to access help online,
and where to find more information.
Express Setup
If Express Setup does not run, or if the Express Setup page does not appear in your browser:
Checklist Recommendation
Did you verify that POST ran
successfully before starting Express
Setup?
Did you press the Mode button while
the switch was still running POST?
Did you try to continue without
confirming that the switch was in
Express Setup mode?
Does your PC or laptop have a static IP
address?
Did you connect the Ethernet cable to
the console port instead of a
10/100/1000 Ethernet port or the
management port on the switch?
Did you wait 30 seconds after you
connected the switch and the PC or
laptop before you entered the IP
address in your browser?
Did you enter the wrong address in the
browser, or is there an error message?
If not, make sure that only the SYST LED and ACTV LED
are green before you press the Mode button to enter the
Express Setup mode.
POST errors are usually fatal. Contact your Cisco technical
support representative if your switch fails POST.
If yes, wait until POST completes. Power cycle the switch.
Wait until POST completes. Confirm that the SYST LED
and ACTV LED are green. Press the Mode button to enter
Express Setup mode.
Verify that all LEDs next to the Mode button are green. If
not, press and hold the Mode button to enter Express Setup
mode.
If yes, change your PC or laptop settings to temporarily use
DHCP before connecting it to the switch.
If yes, disconnect the cable from the console port. Connect
the cable to an Ethernet port on the switch. Wait 30 seconds
before you enter 10.0.0.1 in the browser.
If not, wait 30 seconds, reenter 10.0.0.1 in the browser, and
press Enter.
If yes, reenter 10.0.0.1 in the browser, and press Enter.
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Resetting the Switch
Caution Resetting the switch reboots the switch.
To reset the switch to the factory defaults:
Step 1 If you are using Cisco IOS XE Release 3.6.0E or later releases, enter the erase startup-config privileged
EXEC command to clear the contents of your startup configuration.If you are using an earlier release, you
can skip this step.
Step 2 Press and hold the Mode button. The switch LEDs begin blinking after about 3 seconds.
Step 3 Continue holding down the Mode button. The LEDs stop blinking after 7 more seconds, and then the
switch restarts.
Step 4 The switch now operates like an unconfigured switch. You can enter the switch IP information by using
Express Setup as described in the “Running Express Setup” section on page 3.
Obtaining Documentation and Submitting a Service Request
Accessing Help Online
Look for a solution to your problem in the troubleshooting section of the Catalyst 3850 Switch Hardware
Installation Guide or the Catalyst 3850 Switch Software Configuration Guide on Cisco.com. You can
also access the Cisco Technical Support and Documentation website for a list of known hardware
problems and extensive troubleshooting documentation.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS Version 2.0.
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21
Related Documentation
Related Documentation
Note Before installing or upgrading the switch, refer to the switch release notes.
• Catalyst 3850 Switch documentation at:
http://www.cisco.com/go/cat3850_docs
• Cisco SFP and SFP+ modules documentation, including compatibility matrixes at:
http://www.cisco.com/en/US/products/hw/modules/ps5455/tsd_products_support_series_home.ht
ml
• Cisco Validated Designs documents at:
http://www.cisco.com/go/designzone
• Error Message Decoder, located at:
https://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of
Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The
use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
© 2013-2014 Cisco Systems, Inc. All rights reserved.
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