Table Of Contents
Getting Started Guide
Catalyst 3750 Metro Switch Getting Started Guide
INCLUDING LICENSE AND WARRANTY
1 About this Guide
This guide provides instructions on how to use Express Setup to initially configure your Catalyst 3750 Metro switch. Also covered are switch management options, basic rack-mounting procedures, port and module connection procedures, AC power connection procedures, and troubleshooting help. (For DC-powered switches, see the hardware installation guide on Cisco.com.)
For additional installation and configuration information for Catalyst 3750 Metro switches, see the Catalyst 3750 Metro documentation on Cisco.com. For system requirements, important notes, limitations, open and resolved bugs, and last-minute documentation updates, see the release notes, also on Cisco.com.
When you use the online publications, refer to the documents that match the Cisco IOS software version running on the switch. The software version is on the Cisco IOS label on the switch rear panel, or you can use the show version command.
For translations of the warnings that appear in this publication, see the Regulatory Compliance and Safety Information for the Catalyst 3750 Metro Switch that accompanies this guide.
If you prefer to set up the switch using the command-line interface (CLI), see the "Configuring the Switch with the CLI-Based Setup Program" appendix in the hardware installation guide on Cisco.com.
2 Taking Out What You Need
Follow these steps:
1. Unpack and remove the switch and the accessory kit from the shipping box.
2. Return the packing material to the shipping container, and save it for future use.
3. Verify that you have received the items shown on page 3. If any item is missing or damaged, contact your Cisco representative or reseller for instructions. Some switch models might include additional items that are not shown on page 3.
Shipping Box Contents
Items 3 and 4 are in the box but are not used with this product.
Connecting to a DC Power Source
If your switch is powered through a DC power supply, see the "Connecting to DC Power" section in the hardware installation guide on Cisco.com at this URL:
Information You Need to Run Express Setup
You need this information from your system administrator before you begin the setup program:
•Fixed IP address
•Subnet mask (IP netmask)
•Default gateway IP address
You can also configure these optional parameters through the Express Setup program:
•Local access password
•Telnet access password
•Names of the simple network management protocol (SNMP) read and write community strings if you are going to use a network-management program like CiscoWorks.
•Host name, system contact, and system location
You need this equipment to set up the switch:
•A PC with Windows 2000 or XP installed
•A straight-through or crossover Category 5 Ethernet cable to connect your PC to the switch
Disable any pop-up blockers or proxy settings in your browser software and any wireless client running on your PC.
3 Running Express Setup
When you first set up the switch, you should use Express Setup to enter the initial IP information. Doing this enables the switch to connect to local routers and the Internet. You can then access the switch through the IP address for further configuration.
Preparing Switch to Run Express Setup
To prepare the switch:
Step 1 Verify that no devices are connected to the switch. During Express Setup, the switch acts as a DHCP server. If your PC has a static IP address, before you begin you should change your PC settings to temporarily use DHCP.
Step 2 Connect one end of the AC power cord to the power connector on the switch rear panel.
Note If your switch is powered through a DC power supply, see the "Connecting to DC Power" section in the hardware installation guide.
Step 3 Connect the other end of the power cable to a grounded AC outlet.
As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the switch functions properly.
Step 4 Wait for the switch to complete POST. It might take several minutes for the switch to complete POST.
Step 5 Verify that POST has completed by confirming that the system and status LEDs remain green. The power and master LEDs might also be green depending on their functional status. See the LEDs section in the hardware installation guide for more information.
If the switch fails POST, the system LED turns amber. See the "In Case of Difficulty" section to determine a course of action. POST errors are usually fatal. Call Cisco Systems immediately if your switch fails POST.
Step 6 Press and hold the Mode button until the four LEDs above the Mode button turn green. This takes approximately 3 seconds.
Step 7 Release the Mode button.
If the LEDs above the Mode button begin to blink after you press the button, release it. Blinking LEDs mean that the switch has already been configured and cannot go into Express Setup mode. For more information, see the "Resetting the Switch" section.
Step 8 Connect the Ethernet cable (not included) to a 10/100 Ethernet port or small form-factor pluggable (SFP) module port on the front panel of the switch.
Caution Do not connect the switch to any device other than the PC or workstation being used to configure it.
Step 9 Connect the other end of the cable to the Ethernet port on the PC or workstation. Verify that the port status LEDs on both connected Ethernet ports are green.
Running Express Setup
Step 1 Wait approximately 30 seconds after the port LEDs turn green, and launch a web browser on your PC or workstation.
Step 2 Enter the IP address 10.0.0.1, and press Enter.
The Express Setup home page appears.
Step 3 Enter this information in the Network Settings fields:
–In the Management Interface (VLAN ID) field, the default is 1. Enter a new VLAN ID only if you want to change the management interface through which you manage the switch and to which you assign IP information. The VLAN ID range is 1 to 1001.
–In the IP Address field, enter the IP address of the switch. In the IP Subnet Mask field, click the drop-down arrow, and select an IP 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 1 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.
Step 4 (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 IP Subnet Mask field, click the drop-down arrow, and select an IP Subnet Mask.
Step 5 (Optional) You can enter these Optional Settings information now or enter it later by using the device manager interface:
–In the Host Name field, enter a name for the switch. The host name is limited to 31 characters; embedded spaces are not allowed.
–Enter the date, time, and time zone information in the System Date, System Time, and Time Zone fields. Click Enable to enable daylight saving time.
Step 6 (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, re-enter the Telnet password.
–In the SNMP field, click Enable to enable 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 modify it. When you set the SNMP write community, you can both access and modify SNMP information.
–In the System Contact field, enter the name of the person who is responsible for the switch. In the System Location field, enter the wiring closet, floor, or building where the switch is located.
Step 7 (Optional) You can enable IPv6 on the switch in the Advanced Settings screen. In the Enable IPv6 field, click Enable to enable IPv6 on the switch. Note: Enabling IPv6 restarts the switch when you complete Express Setup.
Step 8 Click Submit in the Network Settings or the Advanced Settings window to save your settings. Click Cancel to clear your settings.
When you click Submit, the switch is configured and exits Express Setup mode. The PC displays a warning message and then tries to connect with the new switch IP address. If you configured the switch with an IP address that is in a different subnet from the PC, connectivity between the PC and the switch is lost. If you enabled IPv6, the switch restarts.
Step 9 Disconnect the switch from the PC, and install the switch in your network. See the "Managing the Switch" section for information about configuring and managing the switch.
If you need to rerun Express Setup, see the "Resetting the Switch" section.
Refreshing the PC IP Address
After you complete Express Setup, you should refresh the PC IP address:
•For a dynamically assigned IP address, disconnect the PC from the switch, and reconnect the PC to the network. The network DHCP server assigns a new IP address to the PC.
•For a statically assigned IP address, change it to the previously configured IP address.
4 Managing the Switch
After you complete Express Setup and install the switch in your network, use the CLI or other management options described in this section for further configuration.
You can enter Cisco IOS commands and parameters through the command-line interface (CLI). Access the CLI either by connecting your PC directly to the switch console port, or through a Telnet session from a remote PC or workstation.
Using the switch console port:
Follow these steps:
1. Connect the supplied RJ-45-to DB-9 adapter cable to the standard 9-pin serial port on the PC. Connect the other end of the cable to the console port on the switch.
2. Start a terminal-emulation program on the PC.
3. Configure the PC terminal emulation software for:
–8 data bits
–1 stop bit
–no flow control
4. Use the CLI to enter commands to configure the switch. See the software configuration guide and the command reference for more information.
Other Management Options
You can use SNMP management applications such as CiscoWorks Small Network Management Solution (SNMS) and HP OpenView to configure and manage the switch. You also can manage it from an SNMP-compatible workstation that is running platforms such as HP OpenView or SunNet Manager.
The Cisco IE2100 Series Configuration Registrar is a network management device that works with embedded Cisco Networking Services agents in the switch software. You can use IE2100 to automate initial configurations and configuration updates on the switch.
See the "Accessing Help Online" section for a list of supporting documentation.
This section covers basic 19-inch rack-mounting and switch port connections. For alternate mounting procedures, such as installing the switch in a 24-inch rack or on a wall, and for additional cabling information, see the Catalyst 3750 Metro Switch Hardware Installation Guide on Cisco.com.
Equipment That You Supply
You need a number-2 Phillips screwdriver to rack-mount the switch.
Before You Begin
When determining where to install the switch, verify that these guidelines are met:
•Airflow around the switch and through the vents is unrestricted.
•Temperature around the switch does not exceed 113°F (45°C).
•Humidity around the switch does not exceed 85 percent.
•Altitude at the installation site is not greater than 10,000 feet.
•Clearance to the switch front and rear panels meets these conditions:
–Front-panel LEDs can be easily read.
–Access to ports is sufficient for unrestricted cabling.
–AC power cord can reach from the AC power outlet to the connector on the switch rear panel.
•Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures.
•For 10/100 ports, the cable length from a switch to an attached device cannot exceed 328 feet (100 meters).
•For cable lengths for SFP modules, see the documentation that shipped with the module.
Installation Warning Statements
This section includes the basic installation warning statements. Translations of these warning statements appear in the Regulatory Compliance and Safety Information for the Catalyst 3750 Metro Switch document that shipped with the switch and is also available on Cisco.com.
Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Caution To comply with the Telcordia GR-1089 Network Equipment Building Systems (NEBS) standard for electromagnetic compatibility and safety, connect the Ethernet cables only to intrabuilding or nonexposed wiring or cabling.
Note The grounding architecture of this product is DC-isolated (DC-I).
Before You Attach the Brackets
To install the Catalyst 3750 Metro switch in a rack, you must first remove the screws from the switch chassis so that the mounting brackets can be attached.
•For attachment at the front-mounting position, remove two Phillips truss-head screws from the switch side panels. For some switch models, remove only one screw from the side panels.
•For attachment at the mid-mounting position, remove one screw.
•For attachment at the rear-mounting position, remove one or two screws depending on the switch model.
Attaching the Brackets
Use four Phillips flat-head screws to attach the long side of the brackets to the switch in one of these mounting positions.
Rack-Mount the Switch
Use the black Phillips machine screw to attach the cable guide to the left or right bracket. Use the four number-12 Phillips machine screws to attach the brackets to the rack.
Black Phillips machine screw
Number-12 Phillips machine screws
Mid-rack mounting position (telco rack)
Connect to the Switch Ports
This section describes how to connect to the fixed switch ports and the SFP module ports. The switch 10/100 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.
To maximize performance, choose one of these methods for configuring the Ethernet ports:
•Let the ports autonegotiate both speed and duplex.
•Set the port speed and duplex parameters on both ends of the connection.
Connect to 10/100 Ports
Follow these steps to connect to 10BASE-T or 100BASE-TX devices:
Step 1 When you connect to servers, workstations, IP phones, wireless access points, and routers, insert a straight-through, twisted four-pair, Category 5 cable in a switch 10/100 port. Use a crossover, twisted four-pair, Category 5 cable when you connect to other switches, hubs, or repeaters.
Step 2 Insert the other cable end into an RJ-45 connector on the other device.
Note You can use the mdix auto interface configuration command in the CLI to enable the automatic crossover feature. When the automatic crossover feature is enabled, the switch detects the required cable type and configures the interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for all connections to an Ethernet port on the switch.
The automatic crossover feature is disabled by default. For configuration information for this feature, refer to the switch software configuration guide or the switch command reference.
Step 3 The port LED turns on when both the switch and the connected device have established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device. See the "In Case of Difficulty" section for solutions to cabling problems.
Step 4 Reconfigure and reboot the connected device if necessary.
Install the SFP Modules and Connect to the Ports
Follow these steps:
Step 1 Grasp the module on the sides, and insert it into the switch slot until you feel the connector snap into place.
Step 2 Insert an appropriate cable into the module port. Insert the other cable end into the other device.
For a list of supported modules, see the release notes on Cisco.com. For detailed instructions on installing, removing, and connecting to SFP modules, see the documentation that came with the SFP module.
Caution Removing and installing an SFP module can shorten its useful life. Do not remove and insert SFP modules more often than is absolutely necessary.
Verify Port Connectivity
After you connect to the switch port, the port LED turns amber while the switch establishes a link. This process takes about 30 seconds. Then the LED turns green when the switch and the target device have an established link. If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be a problem with the adapter installed in the target device. See the "In Case of Difficulty" section for information about online assistance.
6 In Case of Difficulty
If you experience difficulty, help is available in this section and also on Cisco.com. This section includes Express Setup troubleshooting, how to reset the switch, how to access help online, and where to find more information.
Troubleshooting Express Setup
If Express Setup does not run, or if the Express Setup page does not appear in your browser:
Resetting the Switch
This section describes how to reset the switch by rerunning Express Setup. These are reasons why you might want to reset the switch:
•You installed the switch in your network and cannot connect to it because you assigned the incorrect IP address.
•You want to clear all configurations from the switch and assign a new IP address.
•You are trying to enter Express Setup mode, and the switch LEDs start blinking when you press the Mode button, which means that the switch is already configured with IP information.
Caution Resetting the switch deletes the configuration and reboots the switch.
To reset the switch, press and hold the Mode button. The switch LEDs begin blinking after about 3 seconds. Continue holding down the Mode button. The LEDs stop blinking after 7 more seconds, and then the switch reboots.
The switch now behaves like an unconfigured switch. You can enter the switch IP information by using Express Setup as described in the "Running Express Setup" section.
Accessing Help Online
First look for a solution to your problem in the troubleshooting section of the Catalyst 3750 Metro Switch Hardware Installation Guide or the Catalyst 3750 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, including:
•Factory defaults and password recovery
•Recovery from corrupted or missing software
•Switch port problems
•Network interface cards
•Field notices and security advisories
Follow these steps:
1. Open your browser, and go to http://www.cisco.com.
2. Click Technical Support and Documentation > Technology Support.
3. Click the subject that addresses the problem that you are experiencing.
For More Information
For more information about the switch, see these documents on Cisco.com:
•Catalyst 3750 Metro Switch Hardware Installation Guide provides complete hardware descriptions and detailed installation procedures.
•Regulatory Compliance and Safety Information for the Catalyst 3750 Metro Switch contains agency approvals, compliance information, and translated warning statements.
•Release Notes for the Catalyst 3750 Metro Switch
•Catalyst 3750 Metro Switch Software Configuration Guide provides a product overview and detailed descriptions and procedures of the switch software features.
•Catalyst 3750 Metro Switch Command Reference includes detailed descriptions of the Cisco IOS commands specifically created or modified for the switch.
•Catalyst 3750 Metro Switch System Message Guide contains descriptions of the system messages specifically created or modified for the switch.
7 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:
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.
8 Cisco One-Year Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
1. Launch your browser, and go to this URL:
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that the part number 78-5235-03C0 is highlighted.
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco Limited Warranty and Software License page from the Information Packet appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
Note You must have Adobe Acrobat Reader to view and print PDF files. You can download the reader from Adobe's website: http://www.adobe.com
3. To read translated and localized warranty information about your product, follow these steps:
a. Enter this part number in the Warranty Document Number field:
b. Select the language in which you would like to view the document.
c. Click Go.
The Cisco warranty page appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
You can also contact the Cisco service and support website for assistance:
Duration of Hardware Warranty
One (1) Year
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference.
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number