Table of Contents
- About This Guide
- Shipping Box Contents
- Running Express Setup
- Managing the Switch
- Installing the Switch
- Securing the AC Power Cord (Optional)
- Connecting the StackWise Cables
- Connecting the StackPower Cables (Optional)
- Installing the Network Module (Optional)
- Connecting the Switch Ports
- Obtaining Documentation and Submitting a Service Request
- Related Documentation
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.
NoteThe 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. 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.
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.
NoteVerify that you have received these items. If any item is missing or damaged, contact your Cisco representative or reseller for instructions. Verify that you have received these items. If any item is missing or damaged, contact your Cisco representative or reseller for instructions.
(Optional) RJ-45 console cable 2
(Optional) USB console cable 2
(Optional) StackWise cable (0.5-meter, 1-meter, or 3-meter) 2
(Optional) StackPower cable (0.3-meter or 1.5-meter) 2
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.
NoteTo use the CLI-based initial setup program, see Appendix C, “Configuring the Switch with the CLI-Based Setup Program,” in the switch hardware guide. 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.
- PC or laptop with Windows Vista, XP, or 2000
- Straight-through or crossover Category 5 Ethernet cable
NoteBefore running Express Setup, disable any pop-up blockers or proxy settings in your browser and any wireless client running on your PC or laptop. 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.
Note Write down the static IP address. You will need this IP address in Step 14.
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.
- Any 10/100/1000 or 10/100/1000 PoE+ or 10/100/1000 Cisco Universal Power Over Ethernet (Cisco UPOE) ports on the switch front panel.
- The RJ-45 management port on the switch rear panel.
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.
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.
- 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.
- 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.
Disconnect the switch from the PC or laptop, and install the switch in your network. See the “Installing the Switch” section.
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 for information about configuring and managing the switch.
2. Enter the switch IP address, username, and password assigned in Step 9 in the browser, and press Enter . The Device Manager page appears.
- 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.
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.
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.
Step 1 Go to this Web address: http://www.cisco.com/en/US/products/ps5931/index.html
NoteIf 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 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.
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 for supporting documentation.
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.
- 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 before you install it.
- Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent 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.
- 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 multirack assembly, the temperature might be higher than normal room temperature.
- Humidity around the switch does not exceed 95 percent.
- Altitude at the installation site is below 10,000 feet.
- 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).
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. Statement 1006
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.
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).
For more configuration examples, see the Catalyst 3850 Switch Hardware Installation Guide on Cisco.com at: http://www.cisco.com/go/cat3850_hw
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.
Caution Removing and installing the StackPower cable can shorten its life. Do not remove and insert the cable more often than is necessary.
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:
- 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.
- 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+
NoteThe 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. 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.
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.
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.
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 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.
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.
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:
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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.