Cisco Systems 520 User Manual

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User Guide for the Catalyst Express 520 Switches

Cisco IOS Release Number 12.2(37)EX

September 2007

Americas Headquarters

Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 527-0883

Text Part Number: OL-12761-02

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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

CCVP, the Cisco logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Inte rnetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networking Academy, Network Registrar, Packet, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.

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All other trademarks mentioned in this document or Website 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. (0705R)

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.

User Guide for the Catalyst Express 520 Switches

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Using This Guide ix

How This Guide Is Organized ix

Switch Documentation Set xi

Using This Guide

This guide is for those who will install or use the switch. It covers the topics to help you learn about the switch and how to effectively use it.

Although extensive networking knowledge is not necessary, we recommend familiarity with LAN switch fundamentals. The Cisco Press General Networking Resources website has links to documents that provide internetworking overviews.

http://www.cisco.com/web/about/ac123/ac220/about_cisco_general_networking _resources.html

How This Guide Is Organized

This guide is organized in this way:

Chapter 1, “Introduction”

Chapter 2, “Setting Up the Switch”

Chapter 3, “Installing the Switch”

Chapter 4, “Connecting to the Switch”

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This chapter describes the software and hardware features and benefits so that you can decide how to use the switch to meet your network objectives.

This chapter provides the recommendations, the guidelines, and the procedures for setting up the switch for the first time. It also includes procedures on how to display the device manager interface through a secured mode.

This chapter provides the recommendations, the guidelines, and the procedures for installing the switch.

This chapter provides the recommendations, the guidelines, and the procedures for connecting devices to the switch.

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How This Guide Is Organized

Using This Guide

Chapter 5, “Changing the Switch Network Settings”

Chapter 6, “Monitoring the Switch”

Chapter 7, “Troubleshooting the Switch”

Appendix A, “Reference”

Appendix B, “Cisco Support Resources”

This document uses the following conventions and symbols for notes, cautions, and warnings. Translations of the warning statements in this document appear in the Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches document.

Note Means reader take note. Notes contain helpful suggestions or references to

materials not contained in this manual.

This chapter describes the basic IP address settings and administrative switch settings that you can modify from the switch device manager.

Use this chapter with the procedures in the device manager online help.

This chapter describes the device manager features that you can use to monitor the status and the performance of the switch.

Use this chapter with the procedures in the device manager online help.

This chapter provides basic troubleshooting advice to help you resolve basic switch and network problems.

This appendix has the switch technical specifications, including the switch serial number location, cabling guidelines, and connector specifications.

This appendix describes the Cisco resources where you can learn more about networking and the switch, can obtain Cisco documentation, and can access Cisco technical support.

Caution Means reader be careful. In this situation, you might do something that could

result in equipment damage or loss of data.

Warning

User Guide for the Catalyst Express 520 Switches

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071

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Using This Guide

Switch Documentation Set

These documents provide complete information about the switch and are available from this Cisco.com site:

http://www.cisco.com/en/US/products/ps7238/tsd_products_support_series_ho me.html

These documents are also available on the Cisco Smart Business Communications System Software and Documentation CD-ROM that ships with the switch.

You can order printed copies of documents with a DOC-xxxxxx= number from the Cisco.com sites and from the telephone numbers listed in the URL referenced in the “Obtaining Documentation, Obtaining Support, and Security Guidelines”

section on page B-2.

• Release Notes for the Catalyst Express 520 Switches (not orderable but

available on Cisco.com)

• Getting Started Guide for the Catalyst Express 520 Switches (order number

DOC-7818063=)

• User Guide for the Catalyst Express 520 Switches (not orderable but available

on Cisco.com)

Switch Documentation Set

• Device manager online help (available on the switch)

• Regulatory Compliance and Safety Information for the Catalyst Express 520

Switches (not orderable but available on Cisco.com)

• Cisco Limited Lifetime Hardware Warranty Terms for the Catalyst

Express 520 Switches (not orderable but available on Cisco.com)

Introduction

Read this chapter to familiarize yourself with the features, benefits, and capabilities of the Catalyst Express 520 switches.

Chapter Topics

• Overview, page 1-2

• Hardware Features, page 1-6

• Software Features, page 1-10

• Box Contents, page 1-14

• Supported Hardware, page 1-14

• Hardware Requirements, page 1-15

• Software Requirements, page 1-15

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Chapter 1 Introduction

Overview

The Catalyst Express 520 switches provide network services that can support the data, voice, and mobile network demands of small and medium-sized businesses. The services ensure transmission quality and reliability for data and voice traffic. They also provide security to protect against network attacks.

The Catalyst Express 520 switches are designed to be

• Smart—Each switch port is applied with a specific Cisco-recommended

configuration (referred to as a Smartports port role) to optimize the switch connections and to ensure security, transmission quality, and reliability for traffic from the switch ports.

• Simple—Setup of the switch can be through a connection to an existing

network with a Dynamic Host Configuration Protocol (DHCP) server, such as a Cisco Unified Communications 500 Series, or through the Express Setup feature of the switch device manager GUI.

• Secure—The switch supports three levels of business-optimized network

security. Traffic between the switch and the network management applications is also encrypted through the Secure Sockets Layer (SSL) protocol.

You can simply install the switch and allow it to operate without any further management intervention. Use device and network management tools to take advantage of the software features and to optimize your use of the switch. With these tools, you can quickly and easily set up, customize, monitor, and troubleshoot the switch.

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Table 1-1 describes the Catalyst Express 520 switches, and Figure 1-1 and Figure 1-2 show the switches in network examples.

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Chapter 1 Introduction

Overview

Table 1-1 Catalyst Express 520 Switches

Catalyst Express 520-8PC-K9

This switch provides Power over Ethernet (PoE) to Cisco IP phones and wireless access points. Because of its compact size, it can be deployed outside the traditional wiring-closet environment, such as in office workspaces and classrooms. It has

• 8 10/100 PoE ports for desktop, printer, IP phone, server, and wireless access-point connectivity

• 1 dual-purpose port (one 10/100/1000BASE-T copper port and one small form-factor pluggable

[SFP] module slot) for switch, router, or server connectivity

Catalyst Express 520-24TT-K9

This switch provides standard connections to network users. It has

• 24 10/100 (Fast Ethernet) ports for desktop and printer connectivity

• 2 10/100/1000 (Gigabit Ethernet) ports for switch, router, or server connectivity

Catalyst Express 520-24LC-K9

This switch provides standard connections to network users and provides connections to PoE devices. It has

• 20 10/100 ports for desktop and printer connectivity

• 4 10/100 PoE ports for IP phone and wireless access point connectivity

• 2 dual-purpose ports for switch, router, or server connectivity

Catalyst Express 520-24PC-K9

This switch provides standard connections to network users and provides connections to PoE devices. It has

• 24 10/100 PoE ports for desktop, printer, IP phone, and wireless access point connectivity

• 2 dual-purpose ports for switch, router, or server connectivity

Catalyst Express 520G-24TC-K9

This switch provides high-speed connections to servers and switches. It has

• 24 10/100/1000 ports for high-speed, desktop connectivity

• 2 dual-purpose ports for server aggregation or for switch, router, or server connectivity

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Chapter 1 Introduction

Cisco Smart Business Communications System Network Example

The Catalyst Express 520 switches are the recommended companion switches to the Cisco Unified Communications 500 Series. These devices are part of the Cisco Smart Business Communications System solution (Figure 1-1).

The Cisco Smart Business Communications System is a unified communications solution for small businesses that provides voice, data, video, security, and wireless capabilities while integrating with existing desktop applications such as calendar, e-mail, and Customer Relationship Management (CRM).

Figure 1-1 Cisco Smart Business Communications System Solution

Overview

Cisco 521

Wireless Express

Access Points

Catalyst Express 520 Switch

Cisco 526 Wireless Express

Mobility Contoller

Cisco

Configuration

Assistant/

Cisco Monitor

Manager

Communications 500 Series

Catalyst Express Switch Network Example

Figure 1-2 is an example of how to use the different Catalyst Express switches to

enable communication between network users and to provide them access to network resources.

Any of the Catalyst Express 520 switches can be Switches A, B, C, and D in this network. To take full advantage of the different models of the Catalyst Express 520 switch platform, use the one that is designed for the type of connections that you require.

• Switches A and B: Use the Catalyst Express 520G-24TC-K9 model. It has

the most Gigabit Ethernet ports, and it is best suited to providing 1000-Mb/s connections between switches and to servers. Multiple connections between the switches ensure that users maintain network access if any of the switches becomes overused or unavailable.

Cisco Unified

PSTN

Cisco Monitor Director

Partner

Fax

Internet

DSL/Cable

Modem

Cisco 870 Series

Router

Site

Teleworker Site

201608

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Chapter 1 Introduction

Overview

• Switches C and D: Use the Catalyst Express 520-24TT-K9 or the Catalyst

Express 520G-24TC-K9 model to provide high-speed (up to 100 Mb/s and 1000 Mb/s, respectively) connections to network users.

You can also use the Catalyst Express 520-24LC-K9 or the Catalyst Express 520-24PC-K9 model to connect Cisco prestandard and IEEE

802.3af-compliant powered devices, such as IP phones and access points, to your network. PoE connections from these switches can provide both network access and power for up to 4 or up to 24 PoE devices, respectively.

If the switch detects that there is no power on the circuit, the PoE ports provide up to 15.4 W of power to attached PoE devices. You can place PoE devices where power outlets are not available or are not convenient and thus avoid cabling costs.

You can manage the network onsite or remotely through the Cisco Configuration Assistant network management application. Through Cisco Configuration Assistant, you can also optimize the switches. For example, you can configure VLANs that give priority to voice traffic over regular data traffic from the desktop devices attached to the IP phones. Other VLANs can provide different types of network users—wired employees, wireless (or mobile) employees, and wired and wireless company visitors—with different access levels to the company network.

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Figure 1-2 Catalyst Express Switch Network Example

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Chapter 1 Introduction

SYSTEM ALERT PoE

ADMIN

Hardware Features

Figure 1-3 and the list that follows describe the switch hardware features and the

benefits that they provide. For hardware installation information, see Chapter 3,

“Installing the Switch.”

Figure 1-3 Hardware Features

Hardware Features

1AC power

connector

2 RPS

connector

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The internal power supply is an autoranging unit that supports input voltages between 100 and 240 VAC. Use the supplied AC power cord to connect the AC power connector to an AC power outlet.

Depending on the Catalyst Express 520 model, a Cisco RPS 675 can be connected to the switch. The RPS is a redundant power system that automatically senses when the internal power supply of a connected device fails and provides power to prevent the loss of network traffic. For complete information about the RPS, see the Cisco RPS 675 Redundant Power System Hardware Installation Guide on Cisco.com.

Warning

Attach only the Cisco RPS (model PWR675-AC-RPS-N1=) to the RPS receptacle.

Statement 100C

3 Security slot The security slots are on the left and right side panels. You can install an optional

cable lock, such as the type that is used to secure a laptop computer, to secure either or both sides of the switch.

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Chapter 1 Introduction

Hardware Features

4 SYSTEM LED The SYSTEM LED shows the status of the switch (system).

Solid green Switch is healthy.

Blinking green Switch is running power-on self-test (POST). POST is a series

of tests that runs automatically to ensure that the switch functions properly. It might take several minutes for the switch to complete POST.

Solid amber Switch is faulty, is rebooting, or is in recovery.

5ALERT LED The ALERT LED shows the presence of a switch problem.

When the switch detects a problem on one or more ports, the Alert LED turns amber. The Alert LED stays amber until the Alert Log is cleared. For more information about the Alert LED and Alert Log, see Table 6-1 and the “Review

the Alert Log” section on page 6-8.

Off (dark) No switch problem is detected.

Solid amber A switch problem is detected.

6PoE LED The PoE LED shows the status of PoE being provided to the ports.

This LED is available on switches that have PoE ports.

Off (dark) PoE to the ports is off.

Solid green One or more ports is receiving PoE.

Blinking amber One or more ports is not receiving PoE because of a fault.

7 RPS LED The RPS LED shows the status of a connected redundant power system (RPS).

This LED is available on switches that have an RPS connector.

Off (dark) RPS is off or is not properly connected.

Solid green RPS is connected and is ready to provide back-up power.

Blinking green RPS is connected but is unavailable because it is providing

power to another device.

Solid amber RPS is in standby mode or is in a fault condition.

Blinking amber Switch internal power supply has failed, and the RPS is

providing power to the switch.

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Chapter 1 Introduction

Hardware Features

8ADMIN LEDThe ADMIN LED shows the management mode in which the switch is operating.

Off (dark) Switch is configured with an IP address.

Blinking green Switch is in the initial setup mode, or the switch is in direct

managed mode. For information about this mode, see the

“Device Manager Is Not Accessible Through the Network” section on page 7-4.

9 ADMIN button The ADMIN button is used to manage the switch through a direct connection to

your PC or laptop and is used to start the recovery on the switch.

10 Uplink ports Depending on the Catalyst Express 520 model, the uplink ports can be

dual-purpose ports or 10/100/1000 ports. For information about 10/100/1000 ports, see Downlink ports.

The dual-purpose port can be used as either a 10/100/1000 port or as an SFP module port. However, both cannot be active at the same time. If both ports are connected, the SFP module port has priority. You cannot change this priority setting.

The SFP module slot supports Gigabit Ethernet SFP modules to establish fiber-optic and 1000BASE-T uplink connections. It supports the modules listed in the “Supported Hardware” section on page 1-14.

11 Downlink

ports

Depending on the Catalyst Express 520 model, the downlink ports can be 10/100 PoE ports, 10/100 ports, or 10/100/1000 ports.

You can set these ports for speed and duplex autonegotiation, in compliance with IEEE 802.3ab, to optimize port bandwidth.

If the connected device also supports autonegotiation, the switch port negotiates the best connection (the fastest line speed that both devices support and full-duplex transmission if the attached device supports it) and configures itself accordingly. The default setting is autonegotiate.

The ports also have the automatic-medium-dependent interface crossover (auto-MDIX) capability to automatically detect the required cable connection type (straight-through or crossover) and to configure the connection appropriately.

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Chapter 1 Introduction

Hardware Features

The PoE ports provide up to 15.4 W of power to connected Cisco prestandard and IEEE 802.3af-compliant powered devices if the switch detects that there is no power on the circuit. On a per-port basis, through the Cisco Configuration Assistant, you can control whether the PoE port automatically provides power when a powered device is connected. By default, the setting is Auto.

Note On the Catalyst Express 520-24LC-K9 switch, ports 1 to 4 are PoE ports.

Use the Cisco Configuration Assistant to change the port settings.

12 Port LEDs The port LEDs show port status, port duplex mode, port speed, and PoE status.

By default, the port LEDs show port status.

Use the Cisco Configuration Assistant to change and to monitor the port settings.

Note To display the port duplex mode, the port speed, and the PoE status from

the port LEDs, you must use the View list from the device manager. See

Table 6-2 and the device manager online help for information about the

View list.

Port Status

Off (dark) No link.

Solid green Link is up, but there is no activity on the link.

Blinking green Link has activity.

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During direct managed mode, the port with the blinking green LED is the selected management port to which to connect your PC or laptop.

Blinking green

Link is faulty.

and amber

Blinking amber Port has a Smartports configuration mismatch.

Solid amber Port is faulty or is disabled due to an error condition.

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Software Features

The switch software features are accessible from these management interfaces:

• Device Manager, page 1-10

• Cisco Configuration Assistant, page 1-13

A subset of the basic software features are accessible through the device manager. All software features are accessible through the Cisco Configuration Assistant.

Device Manager

The device manager is a graphical device management tool for basic setup, monitoring, and troubleshooting of individual switches.

The device manager displays real-time views of switch configuration and performance. It simplifies configuration tasks with features such as Express Setup for quickly setting up the switch. It uses graphical, color-coded displays, such as the Front Panel view, graphs, and animated indicators to simplify monitoring tasks. It provides alert tools to help you to identify and to solve networking problems.

You can display the device manager (Figure 1-4) from anywhere in your network through a web browser such as Microsoft Internet Explorer. For information on how to display the device manager, see Chapter 2, “Setting Up the Switch.”

Chapter 1 Introduction

1-10

Table 1-2 lists the software features accessible through the device manager.

Complete details about the device manager and the procedures for using the device manager windows are available from the device manager online help.

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Chapter 1 Introduction

Software Features

Figure 1-4 Device Manager Interface

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Chapter 1 Introduction

Software Features

Table 1-2 Software Features Accessible through the Device Manager

Express Setup

• Initial setup requires only IP information for the first-time switch configuration.

• Quick IP address updates if you move the switch to a different network.

• Date and time settings automatically synchronized between the switch and your PC or laptop.

• Dynamic Host Configuration Protocol (DHCP) automatically assigns the switch an IP address, a

default gateway, and a subnet mask from a DHCP server.

Monitoring

• ALERT LED notifies that one or more problems were detected on the switch.

• Alert Log lists all problems detected on the switch, including a timestamp of the most recent

detection of each problem.

• Graphical Front Panel view of the switch LEDs and a Dashboard, which displays gauges and

graphs that show the switch and the port status, the port utilization, and the port error percentages.

Depending on the switch, the Dashboard displays an animated indicator that shows the switch temperature or the internal fan status.

• Port status and statistics tables and graphs display port operating status and the statistics for data

being received and sent on each port.

• Smartport status display the port roles assigned to the switch ports.

Security

• Secure Socket Layer (SSL) protocol authenticates and encrypts communications to the switch

device manager GUI.

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Chapter 1 Introduction

Cisco Configuration Assistant

Compared to the switch device manager, the Cisco Configuration Assistant offers an enhanced set of features for configuring, monitoring, and troubleshooting the devices in your network.

The Cisco Configuration Assistant discovers all devices in the network and can configure all supported routers, switches, and wireless access points and controllers as well as Cisco Unified Communications call-routing and voice-mail systems. After the network is deployed, you also can use Cisco Configuration Assistant to generate status reports, to synchronize passwords, and to upgrade software across all of your Cisco network devices.

Some general Cisco Configuration Assistant features include:

• Centralized, common services—such as software upgrades, configuration

management, inventory reports, network events, alerts, and password and configuration synchronization—for Cisco switches, routers, access points, and voice appliances in the network

• Centralized network monitoring using two views of all connected devices in

the network: a physical view (Front Panel image) and a logical view (network Topology image) of different network devices

• Drag-and-drop software upgrade for multiple devices, including backup and

restoration of device configuration files

• Security configuration for all the Cisco access points in the network

• Authenticated and encrypted communications between the Cisco

Configuration Assistant client and each connected network device

• Simplified troubleshooting through an Events Notification Advisor (which

identifies problems and suggests resolutions related to misconfiguration such as Smartports or duplex-mode mismatch) and through a Link Diagnostic Report (which identifies problems and suggests resolutions related to connectivity such as port-speed mismatch and faulty cabling)

The Cisco Configuration Assistant is available in a number of languages.

Software Features

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You can download the Cisco Configuration Assistant to your PC or laptop from this Cisco.com site:

http://www.cisco.com/go/configassist

Complete details about the Cisco Configuration Assistant features and the procedures for using the application are available from the Cisco Configuration Assistant documentation and the online help.

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Box Contents

Verify that you have received the items shown here. If any item is missing or damaged, contact your Cisco representative or reseller for instructions.

The model shown is a Catalyst Express 520-24PC-K9 switch. Your switch might look slightly different.

The Catalyst Express 520-8PC-K9 switch does not ship with a rack-mount bracket kit. You can order the kit (part number RCKMNT-19-CMPCT=) from Cisco.

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Supported Hardware

The Catalyst Express 520-24PC-K9 switch supports the Cisco RPS 675 (model PWR675-AC-RPS-N1=).

The switch supports Gigabit Ethernet SFP modules for fiber-optic and 1000BASE-T connections. You can use the SFP modules for Gigabit uplink connections to other switches or routers. SFP modules are field-replaceable.

The switch support these Cisco SFP modules:

• 100BASE-BX-10D

• 100BASE-BX-10U

• 100BASE-FX-FE

• 100BASE-FX-GE

• 100BASE-LX

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• 1000BASE-LX/LH

• 1000BASE-SX

• 1000BASE-T

For more information about these SFP modules, see your Cisco SFP module documentation on Cisco.com.

Hardware Requirements

Table 1-3 lists the minimum hardware requirements for setting up the switch and

for using the device manager.

Table 1-3 Hardware Requirements

Processor Speed 233 MHz minimum

RAM 512 MB minimum

Free Hard Drive Space 50 MB

Number of Colors 256

Resolution 1024 x 768

Font Size Small

Hardware Requirements

1 GHz recommended

1 GB recommended

Software Requirements

Table 1-4 lists the supported operating systems and browsers for setting up the

switch and for using the device manager. The device manager verifies the browser version when starting a session to ensure that the browser is supported.

The device manager does not require a plug-in.

You should disable any pop-up blockers or proxy settings in your browser software and any wireless clients running on your PC or laptop.

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Software Requirements

Chapter 1 Introduction

Table 1-4 Supported Operating Systems and Browsers

Operating System Microsoft Internet Explorer Mozilla Firefox

Windows 2000 6.0 and 7.0 1.5, 2.0

Windows 2003 6.0 and 7.0 1.5, 2.0

Windows Vista 6.0 and 7.0 1.5, 2.0

Windows XP 6.0 and 7.0 1.5, 2.0

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CHAPTER

Setting Up the Switch

The switch can operate without an IP address assigned to it. However, we recommend setting up the switch with an IP address so that you can manage it through the device manager and the Cisco Configuration Assistant. Otherwise, your switch management is limited to using only the LEDs on the switch front panel.

For best results in setting up the switch, first follow the procedures in the getting started guide that ships with the Cisco Unified Communications 500 Series. This document is also available on the CD-ROM that ships with the switch.

If you do not have a Cisco Unified Communications 500 Series, follow the guidelines and procedures in this chapter.

Before You Begin

Before you set up the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

Before you power or install the switch, review the safety information the

“Warnings” section on page 2-2.

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The warnings in this chapter are translated into several languages in the

Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches document on Cisco.com.

Chapter Topics

• Warnings, page 2-2

• Set Up the Switch (Existing Network), page 2-2

• Set Up the Switch (No Network), page 2-7

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Warnings

Chapter 2 Setting Up the Switch

• Secured Sessions with the Switch, page 2-12

• When You Are Done, page 2-12

These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches

document that shipped with the switch. Review these warnings before you power the switch.

For a complete list of warnings that apply to the switch, see the “Warnings”

section on page 3-2.

Warning

To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 113°F (45°C). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings.

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.

Statement 17B

Set Up the Switch (Existing Network)

Prerequisites

• This procedure requires connecting the switch to an upstream Dynamic Host

Configuration Protocol (DHCP) server. The upstream device would assign an IP address to the switch.

• You need the hardware and software described in the “Hardware

Requirements” section on page 1-15 and the “Software Requirements” section on page 1-15.

Statement 1024

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Chapter 2 Setting Up the Switch

• You need the Category 5 Ethernet cable that is shipped with the switch.

• You should disable any pop-up blockers or proxy settings in your browser

software and any wireless clients running on your PC or laptop.

Follow these steps:

Set Up the Switch (Existing Network)

Step 1

Step 2

Make sure that nothing is connected to the switch.

Use the supplied switch power cable to connect the switch to an AC power source.

Before proceeding to the next step, wait until the SYSTEM LED stops blinking green and becomes solid green. A solid green SYSTEM LED means that the switch is operating properly.

The ADMIN LED should be blinking green. A blinking green ADMIN LED means that the switch does not have an IP address yet.

Troubleshooting:

If the SYSTEM LED does not blink green, does not turn solid green, or turns amber, contact your Cisco representative or reseller. The switch failed the power-on self-test (POST).

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Set Up the Switch (Existing Network)

Chapter 2 Setting Up the Switch

Step 3

Use the supplied Category 5 Ethernet cable to connect an upstream DHCP server (such as the Cisco Unified Communications 500 Series) to the switch dual-purpose port.

Before proceeding to the next step, wait until the port LEDs on the switch and the other device blink green. The solid green port LEDs means a successful connection between the two devices.

The ADMIN LED should still be blinking green.

Troubleshooting:

If the port LEDs do not blink green or if either LED turns amber, make sure that you are using the Category 5 Ethernet cable that shipped with the switch. If not, make sure that the cable that you are using is an undamaged Category 5 Ethernet cable.

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Chapter 2 Setting Up the Switch

Set Up the Switch (Existing Network)

Step 4

Verify that the ADMIN LED is off, which means that the switch has received an IP address from the upstream DHCP server and that the initial setup is complete.

Username-and-password pairs prevent unauthorized access by those who could guess the password. We recommend that the switch has at least one username-and-password pair to secure access to the device manager. The default username is cisco. The default password is cisco.

Troubleshooting:

If the ADMIN LED continues to blink green, it means that the switch is still not configured with an IP address. Make sure that an upstream device is operating as a DHCP server.

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Set Up the Switch (Existing Network)

Chapter 2 Setting Up the Switch

Step 5

You can now manage the switch through the Cisco Configuration Assistant and the device manager.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use it to manage the switch. You can download it from the CD-ROM that ships with the switch or from this Cisco.com site:

http://www.cisco.com/go/configassist

You can display the device manager by following these steps:

1. Start a web browser on your PC or laptop.

2. Enter the switch IP address, username, and password in the web browser, and press

Enter. The device manager page appears.

If you do not know the switch IP address, you can display the device manager and find out the switch IP address by following the procedure in the “Access Direct Managed Mode”

section on page 7-6.

Troubleshooting:

If the device manager does not appear, make sure that you entered the correct switch IP address in the browser.

If you entered the correct switch IP address in the browser, make sure that the switch and your PC or laptop are in the same network or subnetwork. For example:

• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is

172.20.20.84, both devices are in the same network.

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• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is 10.0.0.2,

the devices are in different networks and cannot directly communicate without a router. You must either change the switch IP address or change the PC or laptop IP address.

Tip We recommend running a secured session with the switch. See the “Secured Sessions

with the Switch” section on page 2-12 for information on how to ensure that your

management session with the switch is protected from unauthorized access.

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Chapter 2 Setting Up the Switch

Set Up the Switch (No Network)

Prerequisites

• You need the hardware and software described in the “Hardware

Requirements” section on page 1-15 and the “Software Requirements” section on page 1-15.

• You need the Category 5 Ethernet cable that is shipped with the switch.

• You should disable any pop-up blockers or proxy settings in your browser

software and any wireless clients running on your PC or laptop.

Follow these steps:

Set Up the Switch (No Network)

Step 1

Step 2

Make sure that nothing is connected to the switch.

Use the supplied switch power cable to connect the switch to an AC power source.

Before proceeding to the next step, wait until the SYSTEM LED stops blinking green and becomes solid green. A solid green SYSTEM LED means that the switch is operating properly.

The ADMIN LED should be blinking green. A blinking green ADMIN LED means that the switch does not have an IP address yet.

Troubleshooting:

If the SYSTEM LED does not blink green, does not turn solid green, or turns amber, contact your Cisco representative or reseller. The switch failed the power-on self-test (POST).

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Set Up the Switch (No Network)

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Chapter 2 Setting Up the Switch

Step 3

Use the supplied Category 5 Ethernet cable to connect your PC or laptop to any of the downlink switch ports (such as port 1).

Before proceeding to the next step, wait until the port LEDs on the switch and your PC or laptop are green (either solid or blinking). The green port LEDs means a successful connection between the two devices.

The ADMIN LED should still be blinking green.

Troubleshooting:

If the port LEDs are not solid green or if either port LED turns amber, make sure that:

• You connected the Category 5 Ethernet

cable to one of the downlink switch ports (not to an uplink port such as the dual-purpose port).

• You are using the Category 5 Ethernet

cable that shipped with the switch. If not, make sure that the cable that you are using is an undamaged Category 5 Ethernet cable.

• The other device is turned on.

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Chapter 2 Setting Up the Switch

Set Up the Switch (No Network)

Step 4

Step 5

Start a web browser session on your PC or laptop to any URL, such as www.cisco.com.

Before proceeding to the next step, wait until

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the Express Setup window appears.

The ADMIN LED should still be blinking green.

Troubleshooting:

If the Express Setup window does not appear, make sure that any pop-up blockers or proxy settings on your browser are disabled and that any wireless client is disabled on your PC or laptop.

1. Enter the network setting in the Express Setup window.

The network settings enable the switch to operate with its standard default settings and to be managed through the device manager and the Cisco Configuration Assistant. You must apply these settings to access and to take advantage of the monitoring, troubleshooting, and configuration features on the switch. Otherwise, your switch management is limited to using only the LEDs on the switch front panel.

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If you need more information about the Express Setup fields, see the device manager online help.

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2. (Optional) Enter the optional administrative settings in the Express Setup window.

The optional administrative settings identify and synchronize the switch so that it can be managed properly. The switch clock is automatically synchronized with the system clock on your PC or laptop. You can manually set the system clock settings if the switch should have different time settings.

3. Click Submit to save your changes and to complete the initial setup.

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Set Up the Switch (No Network)

Chapter 2 Setting Up the Switch

Step 6

After you click Submit, these events occur:

• The Express Setup program ends.

• The connection between the switch and

your PC or laptop ends.

• If your PC or laptop is connected to a

DHCP server, your PC or laptop loses its IP address that was used during the initial setup.

• Your browser session displays an error

page.

Verify that the ADMIN LED is off, which means that the switch is configured with the IP address that you entered in the Express Setup window and that the initial setup is complete.

Troubleshooting:

If the ADMIN LED continues to blink green, it means that the switch is still not configured with an IP address. Repeat Step 1 to Step 5.

If the problem persists:

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1. Disconnect the Ethernet cable from the

switch.

2. Repeat Step 3 to Step 5.

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Chapter 2 Setting Up the Switch

Set Up the Switch (No Network)

Step 7

Step 8

Assign an IP address to your PC or laptop. Make sure that the IP address that you assign is in the same network as the switch IP address (assigned in Step 5).

To change the IP address of your PC or laptop, either

• Connect your PC or laptop to the network where a DHCP server allocates IP addresses

within the range that is assigned to your switch.

• Enter a static IP address through your PC or laptop Control Panel.

You can now manage the switch through the Cisco Configuration Assistant and the device manager.

http://www.cisco.com/go/configassist

You can display the device manager by following these steps:

1. Start a web browser on your PC or laptop.

2. Enter the switch IP address, username, and password (assigned in Step 5) in the web

browser, and press Enter. The device manager page appears.

Troubleshooting:

If the device manager does not appear, make sure that you entered the correct switch IP address in the browser.

If you entered the correct switch IP address in the browser, make sure that the switch and your PC or laptop are in the same network or subnetwork. For example:

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• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is

172.20.20.84, both devices are in the same network.

• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is 10.0.0.2,

the devices are in different networks and cannot directly communicate without a router. You must either change the switch IP address or change the PC or laptop IP address.

Tip We recommend running a secured session with the switch. See the “Secured

Sessions with the Switch” section on page 2-12 for information on how to ensure

that your management session with the switch is protected from unauthorized access.

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Secured Sessions with the Switch

The switch uses the Secure Sockets Layer (SSL) protocol to secure the HTTP communications between the switch and your PC or laptop. When you attempt to display the device manager, this protocol

• Authenticates the web-based connection between the switch and your PC or

laptop.

• Encrypts and decrypts the information exchanged between the switch and

your PC or laptop to protect the information from unauthorized access over the Internet.

SSL is enabled by default on the switch.

To start a secured device manager session, either:

• Enter https:// before the switch IP address. (HTTP over SSL is abbreviated

as HTTPS.)

• Click the Session: Secured link at the top right corner of the device manager

window.

More information about secured sessions is available from the device manager online help.

Chapter 2 Setting Up the Switch

When You Are Done

After you have set up the switch, follow the procedures in Chapter 3, “Installing

the Switch,” to install the switch in your network environment. Make sure to

review the warnings and installation guidelines.

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CHAPTER

Installing the Switch

Read this chapter for the guidelines and procedures to install the switch.

Before You Begin

Before you install the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

Before you power or install the switch, review the safety information the

“Warnings” section on page 3-2 and the “Installation Guidelines” section on page 3-5.

The warnings in this chapter are translated into several languages in the

Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches document on Cisco.com.

Chapter Topics

• Warnings, page 3-2

• Installation Guidelines, page 3-5

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• Install the Switch On a Desk or Shelf, page 3-7

• Install the Switch in a Rack, page 3-8

• Install the Switch on a Wall, page 3-11

• When You Are Done, page 3-12

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Warnings

Chapter 3 Installing the Switch

These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches

document that shipped with the switch. Review these warnings before you power or install the switch.

Warning

Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals.

Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage.

Attach only the Cisco RPS (model PWR675-AC-RPS-N1=) to the RPS receptacle.

Statement 100C

Ethernet cables must be shielded when used in a central office environment.

Statement 171

Statement 17B

Statement 43

Statement 48

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User Guide for the Catalyst Express 520 Switches

If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on the back of the switch.

Statement 265

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Chapter 3 Installing the Switch

Warnings

Warning

To comply with safety regulations, mount switches on a wall with the front panel facing up.

Statement 266

Statement 371—Power Cable and AC Adapter

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Read the installation instructions before connecting the system to the power source.

Statement 1004

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:

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• 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

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Warnings

Chapter 3 Installing the Switch

Warning

Class 1 laser product.

Statement 1008

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

The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device.

Statement 1019

Statement 1024

This unit might have more than one power supply connection. All connections must be removed to de-energize the unit.

Statement 1028

3-4

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning

Ultimate disposal of this product should be handled according to all national laws and regulations.

Warning

For connections outside the building where the equipment is installed, the following ports must be connected through an approved network termination unit with integral circuit protection: 10/100/1000 Ethernet.

User Guide for the Catalyst Express 520 Switches

Statement 1030

Statement 1040

Statement 1044

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Chapter 3 Installing the Switch

Installation Guidelines

Warning

When installing or replacing the unit, the ground connection must always be made first and disconnected last.

Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security.

No user-serviceable parts inside. Do not open.

Installation of the equipment must comply with local and national electrical codes.

Hot surface.

Statement 1072

Statement 1074

Statement 1079

Statement 1046

Statement 1073

Installation Guidelines

When determining where to place the switch, make sure to observe these requirements and guidelines. Use these requirements and guidelines with the information in Appendix A, “Reference.”

• Temperature around the unit does not exceed 113°F (45°C).

Note If the switch is installed in a closed environment or in a multirack

assembly, the temperature around it might be greater than normal room temperature.

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Installation Guidelines

Chapter 3 Installing the Switch

• The heat sinks and the bottom of the Catalyst Express 520-8PC-K9 switch

might be hot to the touch if the switch is operating at its maximum temperature 113°F (45°C) and is in an environment that exceeds normal room temperature (such as in a closet, in a cabinet, or in a closed or multirack assembly).

• Airflow around the switch and through the vents is unrestricted.

Note We strongly recommend that you allow at least 3 inches (7.6 cm) of

clearance around the ventilation openings to prevent airflow restriction and overheating.

• Do not stack switches or place switches side-by-side unless they are

separated on all sides by at least 3 inches (7.6 cm) of clearance from each other.

• Do not place any items on the top of the switch.

• Allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.

• Do not wall-mount the switch with its front panel facing up or sideways.

According to safety regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

• Clearance to front and rear panels is such that

3-6

–

Airflow around the switch and through the vents is unrestricted.

–

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.

• Cabling is safely away from other devices that might damage the cables.

For additional cabling guidelines, see the “Cabling Guidelines” section on

page A-10.

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Chapter 3 Installing the Switch

Install the Switch On a Desk or Shelf

Follow these steps:

Step 1

Step 2

Step 3

Step 4

Step 5

Locate the adhesive strip with the rubber feet in the accessory kit.

Remove the four rubber feet from the adhesive strip, and attach them to the recessed areas on the bottom of the unit. This prevents the switch from sliding on the desk or shelf.

We strongly recommend that you attach the rubber feet. Doing so helps prevent airflow restriction

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and overheating.

Place the switch on the desk or shelf near an AC power source.

Use the supplied switch power cable to connect the switch to an AC power source.

Wait until the System LED blinks green and then turns solid green. A solid green SYSTEM LED means that the switch is operating properly.

Troubleshooting:

If the SYSTEM LED does not blink green, does not turn solid green, or turns amber, contact your Cisco representative or reseller. The switch failed the power-on self-test (POST).

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Install the Switch in a Rack

Prerequisite

Installing the Catalyst Express 520-8PC-K9 switch in a 19-inch rack requires 19-inch rack-mounting brackets and hardware that are not shipped with the switch. You can order a bracket kit from Cisco. The kit part number is RCKMNT-19-CMPCT=.

The other Catalyst Express switches ship with brackets and hardware.

Chapter 3 Installing the Switch

Warning

• 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

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Chapter 3 Installing the Switch

Follow these steps:

Install the Switch in a Rack

Step 1

Step 2

If you are rack-mounting a Catalyst Express 520-8PC-K9 switch, order the bracket kit from Cisco. The kit part number is RCKMNT-19-CMPCT=.

For the other Catalyst Express switches, locate the brackets and hardware in the accessory kit.

Use the Phillips flat-head screws, included in the bracket kit, to attach a 19-inch bracket to each side of the switch.

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Install the Switch in a Rack

Chapter 3 Installing the Switch

Step 3

Step 4

Step 5

After the brackets are attached to the switch, insert the switch into the 19-inch rack, and align the brackets

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Use either the 10-32 pan-head screws or the 12-24 pan-slotted

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We strongly recommend that you allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.

Use the supplied black Phillips machine screw to attach the cable

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guide to either bracket. Use the cable guide to secure the cables. This prevents them from obscuring the switch front panel and other devices in the rack.

The cable guide is not used with the Catalyst Express 520-8PC-K9 switch.

Use the supplied switch power cable to connect the switch to an AC power source.

Wait until the System LED blinks green and then turns solid green. A solid green SYSTEM LED means that the switch is operating properly.

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Troubleshooting:

If the SYSTEM LED does not blink green, does not turn solid green, or turns amber, contact your Cisco representative or reseller. The switch failed the power-on self-test (POST).

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Chapter 3 Installing the Switch

Install the Switch on a Wall

Prerequisites

• Installing the Catalyst Express 520-8PC-K9 switch in a 19-inch rack requires

19-inch rack-mounting brackets and hardware that are not shipped with the switch. You can order a bracket kit from Cisco. The kit part number is RCKMNT-19-CMPCT=.

The other Catalyst Express switches ship with brackets and hardware.

• You need to supply screws to attach the brackets to the wall.

Follow these steps:

Install the Switch on a Wall

Step 1

Step 2

If you are wall-mounting a Catalyst Express 520-8PC-K9 switch, order the bracket kit from Cisco. The kit part number is RCKMNT-19-CMPCT=.

For the other Catalyst Express switches, locate the brackets and hardware in the accessory kit.

Use the Phillips flat-head screws, included in the bracket kit, to attach a 19-inch bracket to each side of the switch.

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When You Are Done

Chapter 3 Installing the Switch

Step 3

Step 4

Step 5

Mount the switch with the front panel facing down, and use your screws to attach the brackets to the wall as shown in Step 2.

For the best support of the switch and cables, make sure that the switch is attached securely to wall studs or to a firmly attached plywood mounting backboard.

Do not wall-mount the switch with its front panel facing up or sideways. According to safety regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

Use the supplied switch power cable to connect the switch to an AC power source.

Wait until the System LED blinks green and then turns solid green. A solid green SYSTEM LED means that the switch is operating properly.

Troubleshooting:

If the SYSTEM LED does not blink green, does not turn solid green, or turns amber, contact your Cisco representative or reseller. The switch failed the power-on self-test (POST).

When You Are Done

After you have installed the switch in your network, follow the procedures in

Chapter 4, “Connecting to the Switch,” to properly connect other network devices

to the switch. Make sure to review the warnings and installation guidelines.

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CHAPTER

Connecting to the Switch

Read this chapter for the guidelines and procedures to connect devices to the switch.

Before You Begin

Before you connect devices to the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

Before you power or connect devices to the switch, review the safety information in the “Cabling Guidelines” section on page 4-2.

The warnings in this chapter are translated into several languages in the

Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches document on Cisco.com.

Chapter Topics

• Cabling Guidelines, page 4-2

• Connect to an Ethernet Port, page 4-3

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• Install an SFP Module into an SFP Module Slot, page 4-4

• Remove an SFP Module from an SFP Module Slot, page 4-5

• Connect to a Fiber-Optic SFP Module Port, page 4-6

• Connect to a Dual-Purpose Port, page 4-7

• When You Are Done, page 4-8

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Warnings

Chapter 4 Connecting to the Switch

These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst Express 520 Switches

document that shipped with the switch. Review these warnings before you connect devices to the switch.

Warning

Class 1 laser product.

Statement 1072

Cabling Guidelines

Before connecting devices to the switch, make sure to observe these requirements and guidelines. Use these requirements and guidelines with the information in the

“Cabling Guidelines” section on page A-10.

• Cabling is away from sources of electrical noise, such as radios, power lines,

and fluorescent lighting fixtures.

• Cabling is safely away from other devices that might damage the cables.

Statement 1008

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Chapter 4 Connecting to the Switch

SYST

POWER

ETHERNET

Connect to an Ethernet Port

Caution To prevent ESD damage, follow your normal board and component handling

procedures.

Caution PoE faults are caused when noncompliant cabling or powered devices are

connected to a PoE port. Only standard-compliant cabling can be used to connect Cisco pre-standard IP Phones or wireless access points or IEEE 802.3af-compliant devices to PoE ports. A cable or device that causes a PoE fault must be removed from the network.

Many legacy powered devices, including older Cisco IP phones and access points that do not fully support IEEE 802.3af might not support PoE when connected to the switch by a crossover cable.

Follow these steps:

Connect to an Ethernet Port

Step 1

Use a straight-through Category 5 cable to connect a switch 10/100 or 10/100/1000 port to a desktop, wireless access point, IP phone, server, printer, or router.

Use a crossover Category 5 cable to connect a switch port to another switch or a repeater.

Use a twisted four-pair, Category 5 cable to connect a switch 1000BASE-T small

201620

form-factor pluggable (SFP) module port to another device.

Step 2

Step 3

Insert the other cable end in the other device.

Wait until the port LEDs on the switch and the attached device are solid green. The solid green port LEDs means a successful connection between the two devices.

Troubleshooting:

If the port LEDs are not solid green or if either port LED turns amber, make sure that:

• You are using an undamaged Category 5 Ethernet cable.

• The other device is turned on.

Step 4

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Repeat Step 1 to Step 3 as necessary.

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Chapter 4 Connecting to the Switch

Install an SFP Module into an SFP Module Slot

Prerequisites

• Use only Cisco SFP modules. Each SFP module has an internal serial

EEPROM that is encoded with security information. This encoding provides a way for Cisco to identify and validate that the SFP module meets the requirements for the switch.

• Do not remove the dust plugs from the fiber-optic SFP module port or the

rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

Caution We strongly recommend that you do not install or remove fiber-optic SFP modules

with cables attached because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP module. Disconnect all cables before removing or installing an SFP module.

Step 1

Step 2

Step 3

4-4

Removing and installing an SFP module can shorten its useful life. Do not remove and insert SFP modules more often than is absolutely necessary.

Follow these steps:

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Find the send (TX) and receive (RX) markings that identify the top side of the SFP module.

Note On some SFP modules, the send and receive (TX and RX) markings might be replaced

by arrows that show the direction of the connection, either send or receive (TX or RX).

Align the SFP module in front of the slot opening.

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Chapter 4 Connecting to the Switch

Remove an SFP Module from an SFP Module Slot

Step 4

Insert the SFP module into the slot until you feel the connector on the module snap into

Step 5

place in the rear of the slot.

On fiber-optic SFP modules, remove the dust plugs from the optical ports, and store them for

later use.

Step 6

Disconnect the cable from the SFP module, and insert a dust plug into the cable end.

Remove an SFP Module from an SFP Module Slot

Tip For reattachment, note which cable connector plug is send (TX) and which is

receive (RX).

Follow these steps:

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Step 1

Step 2

Step 3

Step 4

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Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Disconnect the cable from the SFP module, and insert a dust plug into the cable end.

Unlock and remove the SFP module.

If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp latch is obstructed and you cannot

Catalyst Express 520

rie

use your finger to open it, use a small, flat-blade screwdriver or other long, narrow instrument to open the bale-clasp latch.

Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.

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Connect to a Fiber-Optic SFP Module Port

Chapter 4 Connecting to the Switch

Step 5

On fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.

Step 6

Place the removed SFP module in an antistatic bag or other protective environment.

Connect to a Fiber-Optic SFP Module Port

Prerequisite

Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

Caution Before connecting to the SFP module, be sure that you understand the port and

cabling stipulations in the “Cabling Guidelines” section on page 4-2 and in the

“Cabling Guidelines” section on page A-10.

Follow these steps:

Step 1

Step 2

4-6

Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.

Use a fiber-optic cable with an LC or MT-RJ connector to connect a fiber-optic SFP module port to another device.

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Chapter 4 Connecting to the Switch

Connect to a Dual-Purpose Port

Step 3

Step 4

Insert the other cable end in the other device.

Wait until the port LEDs on the switch and the attached device are solid green. The solid green port LEDs means a successful connection between the two devices.

Troubleshooting:

If the port LEDs are not solid green or if either port LED turns amber, make sure that:

• You are using an undamaged fiber-optic cable.

• The other device is turned on.

Connect to a Dual-Purpose Port

Prerequisite

Caution Before connecting to the SFP module, be sure that you understand the port and

cabling stipulations in the “Cabling Guidelines” section on page 4-2 and in the

“Cabling Guidelines” section on page A-10.

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When You Are Done

Chapter 4 Connecting to the Switch

Follow these steps:

Step 1

Step 2

Step 3

Either:

• Use a twisted four-pair, Category 5 cable

to connect the switch 10/100/1000 port to another device

• Use a twisted four-pair, Category 5 cable

t E

Series

to connect the switch 1000BASE-T SFP module port to another device

• Use a fiber-optic cable with an LC or

MT-RJ connector to connect a fiber-optic SFP module port to another device.

Only one port can be active at a time. If both ports are connected, the SFP module port has priority. The priority setting is not configurable.

Insert the other cable end in the other device.

Wait until the port LEDs on the switch and the attached device are solid green. The solid green port LEDs means a successful connection between the two devices.

Troubleshooting:

If the port LEDs are not solid green or if either port LED turns amber, make sure that:

• You are using an undamaged Category 5 Ethernet cable or an undamaged fiber-optic

cable.

201624

• The other device is turned on.

When You Are Done

After you have connected the switch to the other devices in your network, you can manage your switch as described in Chapter 5, “Changing the Switch Network

Settings,” Chapter 6, “Monitoring the Switch,” and Chapter 7, “Troubleshooting the Switch.”

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CHAPTER

Changing the Switch Network Settings

Read this chapter to understand the concepts and tasks for changing basic network settings on the switch through the device manager.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use it to optimize the switch to operate in your existing network. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

Before You Begin

Before you can customize the switch settings, the switch must first have an IP address. If it does not have one, make sure that you have followed the steps to set up the switch in Chapter 2, “Setting Up the Switch.”

Before you configure the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

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Chapter Topics

• Change the Switch IP Information, page 5-2

• Change Optional Administrative Settings, page 5-2

• When You Are Done, page 5-3

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Chapter 5 Changing the Switch Network Settings

Change the Switch IP Information

The network settings enable the switch to operate with its standard default settings and to be managed through the device manager. These settings were set during the initial setup. You would need to change these settings if you want to move the switch to a different management VLAN or to a different network.

You can change these network settings through the Express Setup window on the device manager:

• Management interface (VLAN ID)

• IP assignment mode (DHCP)

• IP address

• Subnet mask list

• Default gateway

See the device manager online help for complete guidelines and procedures.

During the initial setup, a username and password to the switch might have been assigned. The default username is cisco. The default password is cisco. You can find out or change this information through the Cisco Configuration Assistant.

Change Optional Administrative Settings

The optional administrative settings identify and synchronize the switch so that it can be managed properly. These settings might have been set during the initial setup. Change these settings if you need to change the switch name or its system clock.

You can changes these administrative settings through the Express Setup window on the device manager:

• Host name

• System date

• System time

• Time zone

• Daylight saving time

See the device manager online help for complete guidelines and procedures.

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Chapter 5 Changing the Switch Network Settings

When You Are Done

Monitor the performance of your network and the switch, as described in

Chapter 6, “Monitoring the Switch.”

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use it to optimize the switch to operate in your existing network and to monitor the switch. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

When You Are Done

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When You Are Done

Chapter 5 Changing the Switch Network Settings

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CHAPTER

Monitoring the Switch

Any problem in your switch can affect a large proportion of your users. Implementing a preventive approach to switch monitoring helps you to detect problems early and to avoid potential problems.

With switch monitoring, you can gain visibility into the status and availability of the switch ports. You can actively monitor the switch and its ports and quickly notify users if a switch port or the switch fails.

Read this chapter to understand the switch monitoring features that are available through the device manager to evaluate the status and the performance of the switch. The tasks in this chapter are independent, unless otherwise noted, and are listed in no particular order.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use the enhanced set of tools to monitor the switch and your network. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

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Before You Begin:

The monitoring features described in this chapter are available if the switch has an IP address. Make sure that the switch has been set up as described in Chapter 2,

“Setting Up the Switch.”

Chapter Topics:

• Review the Front Panel View and the LEDs, page 6-2

• Review the Dashboard, page 6-6

• Review the Port Status, page 6-7

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Chapter 6 Monitoring the Switch

Review the Front Panel View and the LEDs

• Review the Port Statistics, page 6-7

• Review the Alert Log, page 6-8

• When You Are Done, page 6-9

Review the Front Panel View and the LEDs

The Front Panel view (Figure 6-1) is a graphical display of the switch front panel, and it is always visible during the device manager session. The switch components on the Front Panel view are color coded by status. The colors help you to quickly see if a fault or an error condition exists.

Figure 6-1 Front Panel View

6-2

The LEDs on the Front Panel view and on the physical switch match. Ta bl e 6 -1 describes the system-level LEDs. Table 6-2 describes the port LEDs. You can change the port LED behavior by selecting a port mode from the View list on the Front Panel view.

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Chapter 6 Monitoring the Switch

Review the Front Panel View and the LEDs

Table 6-1 System-Level LEDS

LED Explanation

SYSTEM The SYSTEM LED shows the status of the switch (system).

Solid green Switch is healthy.

Blinking green Switch is running power-on self-test (POST).

Solid amber Switch is faulty, is rebooting, or is in recovery.

ALERT The ALERT LED shows the presence of a switch problem.

When the switch detects a problem on one or more ports, the Alert LED turns amber. Move the pointer over the Alert LED to display a description of the most recent problem detected, the port on which the problem exists, and the time that it was detected. The Alert LED stays amber until the Alert Log is cleared. Use the link to the Alert Log to see more details about the problem. For more information, see the “Review the Alert Log” section on page 6-8.

Off (dark) No switch problem is detected.

Solid amber A switch problem is detected.

PoE The PoE LED shows the status of PoE being provided to the ports.

This LED is available on switches that have PoE ports.

Off (dark) PoE to the ports is off.

Solid green One or more ports is receiving PoE.

Blinking amber One or more ports is not receiving PoE because of a fault.

RPS The RPS LED shows the status of a connected redundant power system (RPS).

This LED is available on switches that have an RPS connector.

Off (dark) RPS is off or is not properly connected.

Solid green RPS is connected and is ready to provide back-up power.

Blinking green RPS is connected but is unavailable because it is providing power

to another device.

Solid amber RPS is in standby mode or is in a fault condition.

Blinking amber Switch internal power supply has failed, and the RPS is providing

power to the switch.

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Chapter 6 Monitoring the Switch

Review the Front Panel View and the LEDs

Table 6-1 System-Level LEDS (continued)

LED Explanation

ADMIN The ADMIN LED shows the management mode in which the switch is operating. The

ADMIN button on the Front Panel view is not active from the device manager.

Off (dark) Switch is configured with an IP address.

Blinking green Switch is in the initial setup mode, or the switch is in direct

managed mode. For information about this mode, see the “Device

Manager Is Not Accessible Through the Network” section on page 7-4.

Ta b l e 6 - 2 P o r t L E D s

Port Mode Explanation

Status In this mode, the port LEDs show port status, port duplex mode, port speed, and PoE

status. By default, the port LEDs show port status.

Use the Cisco Configuration Assistant to change and to monitor the port settings.

Note To display the port duplex mode, the port speed, and the PoE status from the port

LEDs, you must use the View list. See the device manager online help for information about the View list.

Off (dark) No link.

Solid green Link is up, but there is no activity on the link.

Blinking green Link has activity.

6-4

During direct managed mode, the port with the blinking green LED is the selected management port to which to connect your PC or laptop.

Solid brown Port is administratively disabled. This status is available

through the device manager Front Panel view.

Blinking green and

Link is faulty.

amber

Blinking amber Port has a Smartports configuration mismatch.

Solid amber Port is faulty or is disabled due to an error condition.

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Chapter 6 Monitoring the Switch

Review the Front Panel View and the LEDs

Table 6-2 Port LEDs (continued)

Port Mode Explanation

Duplex In this mode, the port LEDs show the duplex mode (full duplex or half duplex) of the

ports.

Note: The 10/100/1000 ports operate only in full-duplex mode.

Off (dark) No link.

Solid light blue Port is in half-duplex mode.

Solid green Port is in full-duplex mode.

Speed In this mode, the port LEDs show the operating speed (10, 100, or 1000 Mb/s) of the

ports.

Off (dark) No link.

Solid light blue 10 Mb/s.

Solid green 100 Mb/s.

Blinking green 1000 Mb/s.

PoE In this mode, the port LEDs show the status of the Power over Ethernet (PoE) ports.

Off (dark) No power is allocated.

Solid green Power is allocated.

Blinking green and amber

Blinking amber Port is disabled due to a fault condition.

Smartports In this mode, each port image shows the applied port role.

Power is denied to the port because providing power to the attached device would exceed the switch power capacity.

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For information about Smartports, see the Cisco Configuration Assistant online help.

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Review the Dashboard

The Dashboard (Figure 6-2) on the device manager provides information about the switch and is the main window for monitoring the switch status and its performance. It is the default window and appears each time that you display the device manager.

See the device manager online help for additional information and procedures.

Figure 6-2 Switch Dashboard

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Chapter 6 Monitoring the Switch

Review the Port Status

If the switch has link problems, such as traffic that is not being received on a switch port, check the port status, and verify that the port settings are correct. You should also verify the settings of switch port before connecting a device to it.

You can view these port settings through the Port Status window on the device manager:

• Port status

• VLAN status

• Current speed

• Duplex mode

• PoE status

• Auto-MDIX status

See the device manager online help for additional information and procedures.

Review the Port Status

Review the Port Statistics

The Port Statistics window displays the statistics for data sent and received by the switch ports since the switch was last powered on, was restarted, or since the statistics were last cleared.

The types of port statistics collected and displayed are grouped under these tabs on the Port Statistics window on the device manager:

• Overview tab—Use this tab to display the specific numbers of error packets

received on and sent from the port, which is a level of detail that is not available from the Dashboard graphs. The number of error packets can mean a duplex mismatch, incompatibilities with the port and its attached device, or faulty cables or attached devices. Any of these problems can cause slow network performance, data loss, or lack of connectivity.

• Transmit Detail tab—Use this tab to troubleshoot unusual changes in network

traffic. If a port is sending an unusually high amount of traffic (such as multicast or broadcast packets), monitor the connected device to see if this traffic pattern is normal or if it could mean a problem.

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Review the Alert Log

• Receive Detail tab—Use this tab to troubleshoot unusual changes in network

traffic. If a port is receiving an unusually high amount of traffic (such as multicast or broadcast packets), monitor the connected device to see if this traffic pattern is normal for the connected device or if it could mean a problem.

See the device manager online help for additional information and procedures.

Review the Alert Log

The Alert Log (Figure 6-3) displays switch problems that happened since the log was last cleared. The problems should be or have already been solved.

When the switch detects a problem, the Alert LED turns amber. Move the pointer over the Alert LED to display a pop-up description of the most recent problem detected, the port on which the problem exists, and the time that it was detected. The pop-up includes a link to the Alert Log. The Alert LED stays amber until the Alert Log is cleared.

See the device manager online help for additional information and procedures.

Chapter 6 Monitoring the Switch

6-8

Figure 6-3 Sample Alert Log

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Chapter 6 Monitoring the Switch

When You Are Done

If needed, see Chapter 5, “Changing the Switch Network Settings,” to change or to verify settings, or see Chapter 7, “Troubleshooting the Switch,” to identify and resolve problems.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use the enhanced set of tools to monitor and troubleshoot the switch and your network. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

When You Are Done

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When You Are Done

Chapter 6 Monitoring the Switch

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CHAPTER

Troubleshooting the Switch

Read this chapter to learn about basic troubleshooting of the switch. The tasks in this chapter are independent, unless otherwise noted, and are listed in no particular order.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use the enhanced set of tools to troubleshoot the switch and your network. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

Before You Begin

The troubleshooting features described in this chapter are available if the switch has an IP address. Make sure that the switch has been set up as described in

Chapter 2, “Setting Up the Switch.”

Familiarize yourself with the monitoring features (see Chapter 6, “Monitoring the

Switch”) from which you can find out the specific problems on the switch and

from which you can prevent problems by addressing problematic trends.

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Before you upgrade the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

Chapter Topics

• Troubleshoot IP Address Problems, page 7-2

• Troubleshoot Displaying of the Device Manager, page 7-3

• Troubleshoot Connections to the Switch, page 7-5

• Access Direct Managed Mode, page 7-6

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Chapter 7 Troubleshooting the Switch

Troubleshoot IP Address Problems

• Restart the Switch, page 7-7

• Reset the Switch, page 7-8

• Recover a Username or Password, page 7-9

• Recover the Switch Software, page 7-10

• Troubleshoot a Failed Software Upgrade, page 7-11

• If You Need Further Help, page 7-11

Troubleshoot IP Address Problems

Here are some basic troubleshooting for problems related to the switch IP address.

• IP Address Is Not Received from DHCP Server, page 7-2

• Switch Has Wrong IP Address, page 7-2

IP Address Is Not Received from DHCP Server

If the switch does not receive an IP address from an upstream device operating as a DHCP server, make sure that the upstream device is operating as a DHCP server and again follow the procedures in the “Set Up the Switch (Existing Network)”

section on page 2-2.

Switch Has Wrong IP Address

If the switch is installed in your network but you cannot access the switch because it has the wrong IP address, assign a new switch IP address. To do this, follow the procedure in the “Access Direct Managed Mode” section on page 7-6, and then update the switch IP address on the device manager Express Setup window. You also can change the switch IP address through the Cisco Configuration Assistant.

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Chapter 7 Troubleshooting the Switch

Troubleshoot Displaying of the Device Manager

Here are some basic troubleshooting for problems related to displaying the device manager.

• Device Manager Does Not Display, page 7-3

• Device Manager Is Not Operating Properly, page 7-4

• Device Manager Has A Slow Response Time, page 7-4

• Device Manager Is Not Accessible Through the Network, page 7-4

Device Manager Does Not Display

If you cannot display the device manager from your PC or laptop, make sure that you entered the correct switch IP address in the browser.

If you entered the correct switch IP address in the browser, make sure that the switch and your PC or laptop are in the same network or subnetwork. For example:

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• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is

172.20.20.84, both devices are in the same network.

• If your switch IP address is 172.20.20.85 and your PC or laptop IP address is

10.0.0.2, the devices are in different networks and cannot directly communicate without a router. You must either change the switch IP address or change the PC or laptop IP address.

If the problem persists, follow the procedure in the “Access Direct Managed

Mode” section on page 7-6, and then update the switch network settings on the

device manager Express Setup window.

If the problem still persists, follow the procedure in the “Recover the Switch

Software” section on page 7-10.

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Chapter 7 Troubleshooting the Switch

Troubleshoot Displaying of the Device Manager

Device Manager Is Not Operating Properly

If the device manager does not operate properly (for instance, the device manager is not responding), follow the procedure in the “Access Direct Managed Mode”

section on page 7-6, and then update the switch network settings on the device

manager Express Setup window.

If the problem persists, follow the procedure in the “Recover the Switch

Software” section on page 7-10.

Device Manager Has A Slow Response Time

If the device manager has a slow response time, upgrade the switch through the Cisco Configuration Assistant.

Device Manager Is Not Accessible Through the Network

If you cannot access the device manager remotely from a web browser, follow the procedure in the “Access Direct Managed Mode” section on page 7-6.

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Chapter 7 Troubleshooting the Switch

Troubleshoot Connections to the Switch

Here are some basic troubleshooting for problems related to connections to the switch.

• Switch and Other Device Are Not Communicating, page 7-5

• Cisco IP Phones Continually Disconnect, page 7-5

Switch and Other Device Are Not Communicating

To resolve problems related to connectivity between the switch and other devices, again follow the procedures in Chapter 3, “Installing the Switch,” and Chapter 4,

“Connecting to the Switch.” Follow the steps carefully, and review the

troubleshooting tips included in the steps. Make sure that you review the warnings and guidelines provided in these chapters. Additional guidelines that you should review are in Appendix A, “Reference.”

Cisco IP Phones Continually Disconnect

If connected IP phones continually disconnect, make sure that you are using an undamaged Category 5 straight-through cable, not a crossover cable, to connect each IP phone to the switch.

If the problem persists, upgrade the switch through the Cisco Configuration Assistant.

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Access Direct Managed Mode

Prerequisites

• You must have physical access to the switch.

• Make sure that at least one switch port is enabled and is not connected to a

device.

You can display the device manager and manage the switch through a physical connection between one of the switch ports and your PC or laptop. This type of management connection is referred to as the direct managed mode.

To access the direct managed mode, follow these steps:

Step 1 Press the ADMIN button until the ADMIN LED blinks green and the LED of an

available switch downlink port blinks green.

The port with a blinking green LED is designated as the direct managed mode port. This port is determined by the following:

Chapter 7 Troubleshooting the Switch

7-6

• If all downlink ports are not connected to devices or if multiple downlink

ports are connected to devices, the first available downlink port is selected as the direct managed mode port.

• If only one downlink port is connected to a device, that port is selected as the

direct managed mode port.

If there is no available switch downlink port to which to connect your PC or laptop, disconnect a device from one of the switch downlink ports, and then press the ADMIN button again until the ADMIN LED and the port LED blink green.

Step 2 Use a Category 5 Ethernet cable to connect your PC or laptop to the switch port

with the blinking port LED.

Step 3 Wait until the port LEDs on the switch and your PC or laptop are solid green. The

solid green port LEDs means a successful connection between the two devices.

Step 4 Start a web browser on your PC or laptop.

The device manager page appears. In the device manager window, the Mode field displays Direct Managed.

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Chapter 7 Troubleshooting the Switch

If the device manager does not appear, make sure that any pop-up blockers or proxy settings in your browser software are disabled and that any wireless clients running on your PC or laptop are disabled.

You might also need to enter a URL in your browser, such as www.cisco.com.

Restart the Switch

If you cannot solve a problem by reconfiguring a feature through the Cisco Configuration Assistant, restarting the switch might solve the problem or help you to eliminate probable causes. When you restart the switch, the switch retains its saved configuration settings during the restart process.

Note Restarting the switch interrupts connectivity of your devices to the network.

To restart the switch:

• If you have access to the switch through the Cisco Configuration Assistant,

select the System Reload option from the Maintenance menu.

Restart the Switch

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• If you have access to the device manager, use the Restart / Reset window, and

click the Restart the Switch radio button.

This option restarts the switch without turning off power. However, the device manager is unavailable during the restart process. When the process completes, the switch displays the device manager.

• If you do not have access to the device manager, follow the procedure in the

“Access Direct Managed Mode” section on page 7-6.

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Reset the Switch

If you cannot solve a problem by reconfiguring a feature through the Cisco Configuration Assistant, resetting the switch might solve the problem or help you to eliminate probable causes. For example, if the problem exists after you reset the switch to its default settings, it is unlikely that the switch is causing the problem.

You can reset the switch only through the device manager. You cannot reset the switch through the Cisco Configuration Assistant.

Caution Resetting the switch deletes all customized switch settings, including the IP

address, and returns the switch to its factory default. The same software image is retained. To manage the switch or to display the device manager, you need to reconfigure the basic switch settings (as described in Chapter 2, “Setting Up the

Switch”) and use the new IP address.

Note Resetting the switch interrupts connectivity of your devices to the network.

Chapter 7 Troubleshooting the Switch

7-8

To reset the switch:

• If you have access to the device manager, use the Restart / Reset window, and

click the Reset the Switch radio button.

This option resets the switch, deletes the current configuration settings, returns to the factory default settings, and then restarts the switch.

• If you do not have access to the device manager, follow the procedure in the

“Access Direct Managed Mode” section on page 7-6.

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Chapter 7 Troubleshooting the Switch

Recover a Username or Password

Prerequisite

You must have physical access to the switch.

You cannot recover a lost or forgotten username and password to the switch. If this has happened, you must delete all switch configuration settings, return the switch to its factory default settings, and set up the switch again.

If you have lost or forgotten your username and password to the switch, follow these steps:

Step 1 Press the ADMIN button for approximately 10 seconds.

This resets the switch, deletes the current configuration settings, returns to the factory default settings, and then restarts the switch.

Step 2 Set up the switch, as described in Chapter 2, “Setting Up the Switch.”

Recover a Username or Password

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If the password recovery does not operate properly, follow the procedure in the

“Recover the Switch Software” section on page 7-10.

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Recover the Switch Software

Prerequisites

• You must have physical access to the switch.

• Make sure that at least one switch port is enabled and is not connected to a

device.

You might need to recover the switch software if the image is corrupted. A symptom of corrupted software is the switch continuously trying to restart.

Other reasons to recover the switch software are if you deleted the image due to a failed software upgrade and if you have forgotten the switch password.

Recovering the switch software involves deleting all switch configuration settings and returning the switch to its factory default settings. To return the switch to its factory default settings, follow these steps:

Step 1 Disconnect the power cord from the switch.

Chapter 7 Troubleshooting the Switch

7-10

Step 2 Press the ADMIN button, and at the same time, reconnect the power cord to the

switch.

Step 3 Wait until all the switch-level LEDs turn amber.

Step 4 Release the ADMIN button.

Step 5 Wait until the SYSTEM LED stops blinking green and becomes solid green. A

solid green SYSTEM LED means that the switch is operating properly.

The ADMIN button should be blinking green. A blinking green ADMIN LED means that the switch does not have an IP address yet.

Step 6 Set up the switch, as described in Chapter 2, “Setting Up the Switch.”

Step 7 Use the Cisco Configuration Assistant to upgrade the switch software.

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Chapter 7 Troubleshooting the Switch

Troubleshoot a Failed Software Upgrade

If you attempted to upgrade the switch software but received a message that the upgrade failed, make sure that you still have access to the switch. If you still have switch access, follow these steps:

Step 1 Make sure that you downloaded the correct tar file from Cisco.com.

Step 2 If you downloaded the correct tar file, refresh your device manager browser

session to make sure that there is connectivity between the switch and your PC or laptop or network drive.

Step 3 Try to upgrade the switch again by following the procedures in the Cisco

Configuration Assistant online help.

If the upgrade process still fails (for example, an Upgrade Failed message appears, or the System LED does not turn solid green after a few seconds), follow the procedure in the “Recover the Switch Software” section on page 7-10.

If You Need Further Help

http://www.cisco.com/go/configassist

Use the monitoring features from the device manager as described in Chapter 6,

“Monitoring the Switch.”

For additional resources that can help you troubleshoot problems, see

Appendix B, “Cisco Support Resources.”

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If You Need Further Help

Chapter 7 Troubleshooting the Switch

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APPENDIX

Reference

Chapter Topics

• Technical Specifications, page A-2

• Location of the Switch Serial Number, page A-4

• Connector Specifications, page A-5

• Cabling Guidelines, page A-10

• Cable and Adapter Specifications, page A-13

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Technical Specifications

This section lists the switch technical specifications in Table A-1.

Table A-1 Specifications for the Catalyst Express Switches

Environmental Ranges

Operating temperature 32 to 113°F (0 to 45°C)

Storage temperature –13 to 158°F (–25 to 70°C)

Relative humidity 10 to 85% (noncondensing)

Operating altitude Up to 10,000 ft (3049 m)

Storage altitude Up to 15,000 ft (4573 m)

Power Requirements

AC input voltage Catalyst Express 520-8PC-K9:

100 to 240 VAC, 2.5 to 1.3 A (autoranging), 50 to 60 Hz

Catalyst Express 520-24TT-K9: 100 to 240 VAC, 1.3 to 0.8 A (autoranging), 50 to 60 Hz

Catalyst Express 520-24LC-K9: 100 to 240 VAC, 2 to 1 A (autoranging), 50 to 60 Hz

Appendix A Reference

Catalyst Express 520-24PC-K9: 100 to 240 VAC, 8 to 4 A (autoranging), 50 to 60 Hz

Catalyst Express 520G-24TC-K9: 100 to 240 VAC, 1.3 to 0.8 A (autoranging), 50 to 60 Hz

DC input voltages for RPS 675

+12 V @14 A, –48 V @7.8 A

Power consumption Catalyst Express 520-8PC-K9: 204 W or 696 BTUs per hour

Catalyst Express 520-24TT-K9: 30 W or 102 BTUs per hour Catalyst Express 520-24LC-K9: 110 W or 375 BTUs per hour Catalyst Express 520-24PC-K9: 460 W or 1570 BTUs per hour Catalyst Express 520G-24TC-K9: 45 W or 154 BTUs per hour

Power dissipation Catalyst Express 520-8PC-K9: 80 W or 272 BTUs per hour

Catalyst Express 520-24TT-K9: 30 W or 102 BTUs per hour Catalyst Express 520-24LC-K9: 45 W or 153 BTUs per hour Catalyst Express 520-24PC-K9: 90 W or 307 BTUs per hour Catalyst Express 520G-24TC-K9: 45 W or 153 BTUs per hour

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Appendix A Reference

Table A-1 Specifications for the Catalyst Express Switches (continued)

Power rating Catalyst Express 520-8PC-K9: 0.2 KVA

Catalyst Express 520-24TT-K9: 0.050 KVA Catalyst Express 520-24LC-K9: 0.120 KVA Catalyst Express 520-24PC-K9: 0.460 KVA Catalyst Express 520G-24TC-K9: 0.075 KVA

Power over Ethernet 15.4 W per port maximum

Catalyst Express 520-8PC-K9: Up to 124-W switch maximum Catalyst Express 520-24LC-K9: Up to 62-W switch maximum Catalyst Express 520-24PC-K9: Up to 370-W switch maximum

Physical Dimensions

Weight Catalyst Express 520-8PC-K9: 5 lb (2.3 kg)

Catalyst Express 520-24TT-K9, Catalyst Express 520-24LC-K9, and Catalyst Express 520G-24TC-K9: 8 lb (3.7 kg)

Catalyst Express 520-24PC-K9: 12 lb (5.5 kg)

Dimensions (H x D x W) Catalyst Express 520-8PC-K9:

1.73 x 9.1 x 10.6 in. (4.4 x 23 x 26.9 cm)

Technical Specifications

Catalyst Express 520-24TT-K9, Catalyst Express 520-24LC-K9, and Catalyst Express 520G-24TC-K9:

1.73 x 17.5 x 9.9 in. (4.39 x 44.45 x 25.15 cm)

Catalyst Express 520-24PC-K9:

1.73 x 17.5 x 14.4 in. (4.39 x 44.45 x 36.58 cm)

Acoustic Dimensions

ISO 7770, bystander position: Operating to an ambient temperature of 86ºF (30ºC)

Catalyst Express 520-24TT-K9, Catalyst Express 520-24LC-K9, and Catalyst Express 520G-24TC-K9: 40 dBa

Catalyst Express 520-24PC-K9: 48 dBa

1. Not all Catalyst Express 520 models have an RPS connector.

2. Not applicable to the Catalyst Express 520-8PC-K9 switch.

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Location of the Switch Serial Number

If you contact Cisco Technical Assistance, you need to know the serial number of your switch. See Figure A-1 to locate the serial number on your switch. You can also find the switch serial number from the device manager Dashboard (Figure A-2).

Figure A-1 Serial Number Location on the Catalyst Express 520-8PC-K9

Switch

SN: XXXNNNNXXXX

Series

Catalyst Express 520

ETHERNET

POWER

ADMIN

oE P

ALR

S Y

201710

Appendix A Reference

A-4

Figure A-2 Serial Number Location on the Catalyst Express 520 Switches

Except the Catalyst Express 520-8PC-K9 Switch

SN: XXXNNNNXXXX

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Appendix A Reference

Connector Specifications

This section describes the connectors on the switch.

• 10/100 and 10/100/1000 Ports, page A-5

• SFP Module Ports, page A-8

• Dual-Purpose Ports, page A-9

10/100 and 10/100/1000 Ports

The 10/100 and 10/100/1000 Ethernet ports use standard RJ-45 connectors and Ethernet pinouts with internal crossovers. These ports have the send (TD) and receive (RD) signals internally crossed so that a twisted-pair straight-through cable and adapter can be attached to the port. Figure A-3 shows the pinout for a 10/100 port.

Figure A-3 10/100 Port Pinouts

Connector Specifications

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2 3145678Pin Label

RD+

RD-

TD+

TD-

H5318

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Connector Specifications

Appendix A Reference

Figure A-4 shows the pinout for a 10/100/1000 port.

Figure A-4 10/100/1000 Port Pinouts

2 3145678Pin Label

TP0+

TP0-

TP1+

TP2+

TP2-

TP1-

TP3+

TP3-

Caution PoE faults are caused when noncompliant cabling or powered devices are

When connecting 10/100 and 10/100/1000 ports to compatible devices such as servers, workstations, and routers, you can use a two or four twisted-pair straight-through cable wired for 10BASE-T and 100BASE-TX. Figure A-8 shows the two twisted-pair straight-through cable schematics. Figure A-10 shows the four twisted-pair straight-through cable schematics.

When connecting the ports to other devices, such as switches or repeaters, you can use a two or four twisted-pair crossover cable. Figure A-9 shows the two twisted-pair crossover cable schematics. Figure A-11 shows the four twisted-pair crossover cable schematics.

60915

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Appendix A Reference

Note Use a straight-through cable to connect two ports only when one port is

Connector Specifications

You can the Cisco Configuration Assistant to enable the automatic medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled, the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a copper 10/100, 10/100/1000, or 1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the connection.

The auto-MDIX feature is enabled by default.

You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must use Category 5 cabling when connecting to 100BASE-TX-compatible devices.

designated with an X. Use a crossover cable to connect two ports when both ports are designated with an X or when both ports do not have an X.

This applies only to switches on which auto-MDIX is disabled.

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Connector Specifications

SFP Module Ports

The SFP module ports on the switch use fiber-optic SFP modules with LC connectors (Figure A-5) and copper SFP modules with RJ-45 connectors (Figure A-6). See the “Supported Hardware” section on page 1-14 for a list of supported SFP modules.

Figure A-5 Fiber-Optic SFP Module LC Connector

Appendix A Reference

58476

Warning

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments.

Statement 1051

Figure A-6 Copper SFP Module RJ-45 Connector

2 3145678Pin Label

TP0+

TP0-

TP1+

TP2+

TP2-

TP1-

TP3+

TP3-

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A-8

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Appendix A Reference

Dual-Purpose Ports

The Ethernet port on a dual-purpose port uses standard RJ-45 connectors.

Figure A-7 shows the pinouts.

The SFP module slot on a dual-purpose port uses SFP modules for fiber-optic and copper uplink ports. See the “Supported Hardware” section on page 1-14 for a list of supported SFP modules.

Note The auto-MDIX feature is enabled by default. For configuration information for

this feature, see the Cisco Configuration Assistant online help.

Figure A-7 10/100/1000 Port Pinouts

Connector Specifications

2 3145678Pin Label

TP0+

TP0-

TP1+

TP2+

TP2-

TP1-

TP3+

TP3-

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Cabling Guidelines

This section describes the cabling guidelines for the port connections.

• Ethernet Port Connections, page A-10

• Small Form-Factor Pluggable Module Port Connections, page A-10

Ethernet Port Connections

For copper Ethernet ports, cable lengths from the switch to connected devices must be within 328 feet (100 meters).

Use either straight-through or crossover Category 5 cables with RJ-45 connectors to connect from the switch Ethernet ports to other devices.

Use Category 5 cables for 100BASE-TX and 1000BASE-T traffic. Use Category 3 or Category 4 cables for 10BASE-T traffic.

Appendix A Reference

Small Form-Factor Pluggable Module Port Connections

Each port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the stipulated cable length.

The dual-purpose port can be configured as either a 10/100/1000 port or as an small form-factor pluggable (SFP) module port.

Table A-2 lists the cable specifications for the fiber-optic SFP module

connections. Each port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the stipulated cable length.

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Appendix A Reference

Cabling Guidelines

Note When using shorter distances of single-mode fiber cable, you might need to insert

an inline optical attenuator in the link to avoid overloading the receiver.

Table A-2 Fiber-Optic SFP-Module Port Cabling Specifications

Modal

Wavelength

SFP Module

(nanometers) Fiber Type

100BASE-BX-10D 1550 SMF G.652

100BASE-BX-10U 1310 SMF G.652

100BASE-FX-FE 100BASE-FX-GE

Min.: 1270 Typical: 1300

MMF 50/125

Max.: 1380

100BASE-LX 1310 SMF G.652

1000BASE-LX/LH 1300 MMF

SMF

1000BASE-SX 850 MMF 62.5

1. A mode-conditioning patch cable is required. Using an ordinary patch cable with MMF, 1000BASE-LX/LH SFP modules, and a short link distance can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH SFP module with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cable between the SFP module and the MMF cable on both the sending and receiving ends of the link. The mode-conditioning patch cable is required for link distances greater than 984 feet (300 m).

Core Size (micron)

62.5/125

62.5 50 50 9/10

62.5 50 50

Bandwidth (MHz/km) Cable Distance

— 32,810 ft (10 km)

500 6,562 feet (2 km)

— 32,810 ft (10 km)

500 400 500 —

160 200 400 500

1804 feet (550 m) 1804 feet (550 m) 1804 feet (550 m) 32,810 feet (10 km)

722 feet (220 m) 902 feet (275 m) 1640 feet (500 m) 1804 feet (550 m)

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Appendix A Reference

Cabling Guidelines

For SMF connections, use one of the LCs listed in Table A-3 or Table A-4 . For MMF connections, use one of the LCs listed in Tab le A- 5. Use the Cisco part numbers to order the patch cables that you need, or order patch cables from your vendor.

Table A-3 LC-to-SC Single-Mode Fiber Patch Cables (SFP-to-GBIC Connections)

Type Cisco Part Number

2-meter, LC-to-SC single-mode fiber patch cable CAB-CP-LCSC-2M

8-inch, SC-to-LC single-mode fiber patch cable CAB-CP-SCLC-8IN

10-foot, LC-to-SC single-mode fiber patch cable CAB-SMF-SC-10

100-foot, LC-to-SC single-mode fiber patch cable CAB-SMF-SC-100

25-foot, LC-to-SC single-mode fiber patch cable CAB-SMF-SC-25

50-foot, LC-to-SC single-mode fiber patch cable CAB-SMF-SC-50

75-foot, LC-to-SC single-mode fiber patch cable CAB-SMF-SC-75

Table A-4 LC-to-LC Single-Mode Fiber Patch Cables (SFP-to-SFP Connections)

Type Cisco Part Number

2-meter, LC-to-LC single-mode fiber patch cable 15454-LC-LC-2=

4-meter, LC-to-LC single-mode fiber patch cable 15216-LC-LC-5=

6-meter, LC-to-LC single-mode fiber patch cable 15216-LC-LC-10=

8-meter, LC-to-LC single-mode fiber patch cable 15216-LC-LC-20=

Table A-5 SX LC and SX LC-to-SC Multimode Fiber Patch Cables (SFP-to-SFP Connections)

Type Cisco Part Number

10-meter, SX LC multimode fiber patch cable CSS5-CABSX-LC=

10-meter, SX LC-to-SC multimode fiber patch cable CSS5-CABSX-LCSC=

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Appendix A Reference

Cable and Adapter Specifications

These sections describe the cables and adapters used with the switch.

• Two Twisted-Pair Cable Pinouts, page A-13

• Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports, page A-14

• Crossover Cable, page A-15

Two Twisted-Pair Cable Pinouts

Figure A-8 and Figure A-9 show the schematics of two twisted-pair cables for

connecting to 10BASE-T- and 100BASE-TX-compatible devices.

Figure A-8 Two Twisted-Pair Straight-Through Cable Schematic

Cable and Adapter Specifications

Switch

3 TD+

6 TD–

1 RD+

2 RD–

Figure A-9 Two Twisted-Pair Crossover Cable Schematic

Switch

3 TD+

6 TD–

1 RD+

2 RD–

Router or PC

3 RD+ 6 RD–

1 TD+ 2 TD–

Switch

3 TD+ 6 TD–

1 RD+ 2 RD–

H5578

H5579

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Appendix A Reference

Cable and Adapter Specifications

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports

Figure A-10 and Figure A-11 show the schematics of four twisted-pair cables for

the 1000BASE-T SFP module ports on the switch.

Figure A-10 Four Twisted-Pair Straight-Through Cable Schematic for

1000BASE-T Ports

Switch Router or PC

1TP0+

2TP0-

3 TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

Figure A-11 Four Twisted-Pair Crossover Cable Schematics for 1000BASE-T

Ports

Switch Switch

1 TPO+

2 TPO-

3 TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

1TP0+

2TP0-

3 TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

1TP0+

2TP0-

3 TP1+

6TP1-

4TP2+

5TP2-

7TP3+

8TP3-

65271

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Cisco Systems 520 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

Using This Guide

How This Guide Is Organized

Switch Documentation Set

Related Documentation

Introduction

Overview

Hardware Features

Software Features

Device Manager

Cisco Configuration Assistant

Box Contents

Supported Hardware

Hardware Requirements

Software Requirements

Setting Up the Switch

Warnings

Set Up the Switch (Existing Network)

Set Up the Switch (No Network)

Secured Sessions with the Switch

When You Are Done

Installing the Switch

Warnings

Installation Guidelines

Install the Switch On a Desk or Shelf

Install the Switch in a Rack

Install the Switch on a Wall

When You Are Done

Connecting to the Switch

Warnings

Cabling Guidelines

Connect to an Ethernet Port

Install an SFP Module into an SFP Module Slot

Remove an SFP Module from an SFP Module Slot

Connect to a Fiber-Optic SFP Module Port

Connect to a Dual-Purpose Port

When You Are Done

Changing the Switch Network Settings

Change the Switch IP Information

Change Optional Administrative Settings

When You Are Done

Monitoring the Switch

Review the Front Panel View and the LEDs

Review the Dashboard

Review the Port Status

Review the Port Statistics

Review the Alert Log

When You Are Done

Troubleshooting the Switch

Troubleshoot IP Address Problems

IP Address Is Not Received from DHCP Server

Switch Has Wrong IP Address

Troubleshoot Displaying of the Device Manager

Device Manager Does Not Display

Device Manager Is Not Operating Properly

Device Manager Has A Slow Response Time

Device Manager Is Not Accessible Through the Network

Troubleshoot Connections to the Switch

Switch and Other Device Are Not Communicating

Cisco IP Phones Continually Disconnect

Access Direct Managed Mode

Restart the Switch

Reset the Switch

Recover a Username or Password

Recover the Switch Software

Troubleshoot a Failed Software Upgrade

If You Need Further Help

Reference

Technical Specifications

Location of the Switch Serial Number

Connector Specifications

10/100 and 10/100/1000 Ports

SFP Module Ports

Dual-Purpose Ports

Cabling Guidelines

Ethernet Port Connections