Cisco Catalyst Express 500 Bedienungsanleitung

CHAPTER

1-1

User Guide for the Catalyst Express 500 Switches

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Introduction

Read this chapter to familiarize yourself with the features, benefits, and

capabilities of the Catalyst Express 500 switches.

Note This chapter and the rest of this guide focus on the concepts and tasks that are

available from the switch hardware and the device manager GUI that is embedded

in the switch software.

Enhanced Catalyst Express 500 features and procedures are only available from

the Cisco Network Assistant network management application. This application

can be downloaded from Cisco.com. Refer to the Network Assistant

documentation about these enhanced switch features.

Chapter Topics

•Overview, page 1-2

•Features and Benefits, page 1-4

•System Requirements, page 1-10

•Switch Management Options, page 1-11

•Supported Hardware, page 1-13

•When You Are Done, page 1-13

Chapter 1 Introduction

Overview

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Overview

The Catalyst Express switches (Table 1-1) provide networking for businesses

with up to 250 employees. These switches provide network services to support

data, voice, and mobile network demands. The services ensure transmission

quality and reliability for data and voice traffic. They also provide security to

protect against network attacks.

You can simply install the switch and allow it to operate without any further

management intervention. You can also take advantage of the embedded software

features—tools to quickly and easily set up, customize, monitor, and troubleshoot

the switch—to optimize your use of the switch.

Table 1-1 Catalyst Express 500 Switch Models

Catalyst Express 500-24TT

This switch is designed for providing standard connections to network users. It has:

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

•2 10/100/1000BASE-T (Gigabit Ethernet) ports for uplink or server connectivity

Catalyst Express 500-24LC

This switch is designed for connecting wireless access points to your network. It has:

•20 10/100 ports for desktop connectivity

•4 10/100 Power-over-Ethernet (PoE) ports for desktop, wireless access point, IP telephony, or

closed-circuit TV camera connectivity

•2 10/100/1000BASE-T or small form-factor pluggable (SFP) module ports for uplink or server

connectivity

Catalyst Express 500-24PC

This switch is designed for providing PoE connections to IP phones. It has:

•24 10/100 PoE ports for desktop, wireless, IP telephony, or closed-circuit TV camera connectivity

•2 10/100/1000BASE-T or SFP module ports for uplink or server connectivity

Catalyst Express 500G-12TC

This switch is designed for high-speed connections to servers and switches. It has:

•8 10/100/1000BASE-T ports for high-speed, desktop connectivity

•4 10/100/1000BASE-T or SFP module ports for server aggregation or server connectivity

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Chapter 1 Introduction

Overview

Figure 1-1 is an example network using Catalyst Express switches. Devices

outside the dotted line are network users and network resources, such as servers

and printers. Devices within the dotted line are switches, routers, and access

points that enable communication between network users and provide access to

network resources.

Figure 1-1 Catalyst Express Network Example

Any of the Catalyst Express switch models can be Switches A, B, C, and D in this

network. To take full advantage of the different switch models, use the model that

is designed for the type of connections that you require.

For example, use the Catalyst Express 500G-12TC for Switches A and B. This

model has the most Gigabit Ethernet ports, and it is best suited to providing

1000-Mbps connections between switches and to servers.

Use either the Catalyst Express 500-24TT or the Catalyst Express 500G-12TC for

Switches C and D. These switches are designed to provide high-speed (up to

100 Mbps and 1000 Mbps, respectively) connections to network users.

If you need to connect PoE devices to your network, use the Catalyst

Express 500-24LC and the Catalyst Express 500-24PC. These switches can

provide power to up to 4 or up to 24 PoE devices, respectively.

Chapter 1 Introduction

Features and Benefits

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PoE connections from the switch provide both power and network access to

PoE-capable devices, such as IP phones and access points. PoE devices can

receive up to 15.4 W of power from their connections to the switch. PoE also helps

reduce cabling costs. You can place PoE devices where power outlets are not

available or are not convenient.

Multiple connections between the switches ensure that users maintain network

access if any of the switches becomes overused or unavailable.

A network administrator can manage the network onsite or remotely through the

device manager GUI (embedded in the Catalyst Express switches), through Cisco

Network Assistant, or through a Simple Network Management Protocol

(SNMP)-based network management application. For more information about

managing the switches, see the “Device Manager GUI” section on page 1-8 and

the “Switch Management Options” section on page 1-11.

For more information about how to optimize the connections in a Catalyst Express

network, see the “Optimize Ports through Smartports Port Roles” section on

page 3-2.

Features and Benefits

•Hardware Features, page 1-5

•Software Features, page 1-7

•Device Manager GUI, page 1-8

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Chapter 1 Introduction

Features and Benefits

Hardware Features

Figure 1-2 and the list that follows describe the switch hardware features and the

benefits that they provide. All switches can be installed on a table top, in a rack,

or mounted on a wall. For hardware installation information, see the “Install the

Switch” section on page 2-5.

Figure 1-2 Catalyst Express 500 Hardware Overview

Catalyst Express 500

SERIES

POWER

OVER

ETHERNET

11X

12X

710

912

11 14

13X

14X

23X

24X

15 18

17 20

19 22

21 24

SYSTEM

ALERT

PoE

SETUP

SYSTEM

ALERT

PoE

SETUP

AC power connector

Security cable slot

side and rear panels

Power over Ethernet

(PoE) ports supply up to

15.4 W per port

Fast Ethernet ports

Dual-purpose uplink ports:

SFP module and

10/100/1000BASE-T

SETUP button

Port LEDs

Autonegotiate and auto-MDIX

enabled on all ports

Switch LEDs:

SYSTEM - switch status

ALERT - events detected

PoE - PoE status

SETUP - setup mode

Chapter 1 Introduction

Features and Benefits

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10/100-Mbps Fast Ethernet Ports

10/100/1000-Mbps Gigabit Ethernet Ports

•Autosensing (autonegotiation) of port speed and autonegotiating of duplex mode optimizes port

bandwidth.

•Automatic-medium-dependent interface crossover (auto-MDIX) capability automatically detects

the required cable connection type (straight-through or crossover) and configures the connection

appropriately.

PoE-Capable Ports (Available only on the Catalyst Express 500-24LC and Catalyst Express 500-24PC

switches.)

•Up to 15.4 W of power provided to connected Cisco prestandard and IEEE 802.3af-compliant

powered devices if the switch detects that there is no power on the circuit.

SFP Module Slots

•Fiber-optic SFP modules provide cable media and distance options for switch connectivity. A list

of supported Cisco SFP modules is in the “Supported Hardware” section on page 1-13.

LEDs

•System LEDs show switch status, problem detection, PoE usage, and setup status.

•Port LEDs show port status. From the device manager GUI, port LEDs also show duplex mode,

speed, and PoE status.

•RPS LED shows status of an installed Cisco redundant power supply (RPS). (Available only on the

Catalyst Express 500-24PC model.)

Setup Button

•Button starts the Express Setup program.

Cisco Redundant Power Supply (RPS)

•Cisco redundant power supply (RPS) enhances power reliability. A list of supported RPS models

is in the “Supported Hardware” section on page 1-13. (Available only on the Catalyst

Express 500-24PC model.)

Security Slots

•Slots to attach a security cable to the switch.

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Chapter 1 Introduction

Features and Benefits

Software Features

These are the switch software features and the benefits that they provide. You can

configure these features through the device manager GUI (see the “Device

Manager GUI” section on page 1-8). For details on these features, see the chapters

on Customization, Monitoring, and Troubleshooting.

Note For enhanced switch features that are available only through Network Assistant

and not through the device manager GUI, see the “Cisco Network Assistant”

section on page 1-12.

Express Setup

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

•Quick IP information updates if you relocate the switch to a different network.

•Date and time settings automatically synchronized between the switch and the network

management station.

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

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

Troubleshooting

•General switch diagnostic test detects problems on the switch. Link diagnostic test detects

cable-related issues on a specified port.

•General switch and link diagnostic reports describe problems detected on the switch and its ports

and list recommended actions to resolve each problem.

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 display, LEDs, gauges, graphs, and animated indicators show switch and port

status, utilization, and error percentages, and temperature and fan status.

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

received and sent on each port.

Chapter 1 Introduction

Features and Benefits

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Device Manager GUI

The device manager is a graphical device management tool for configuring,

monitoring, and troubleshooting the switch (Figure 1-3).

It simplifies configuration tasks with features such as Express Setup and

Smartports for quickly setting up the switch and its ports. It uses graphical,

color-coded displays such as the switch front panel view, graphs, and animated

indicators to simplify monitoring tasks. It provides alert and diagnostic tools to

help you identify and solve networking problems.

Additional details about the device manager and procedures on using the device

manager windows are available from the device manager online help (Figure 1-4).

You can display the device manager from anywhere in your network through a

web browser such as Microsoft Internet Explorer or Netscape Navigator. For

information on how to display the device manager, see the “Display the Device

Manager” section on page 2-13.

Customization

•Smartports port roles optimize switch ports according to their attached devices. Security and

quality of service (QoS) benefits are built into the port roles.

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

device manager GUI. (Requires the cryptographic version of the switch software available from

the software download page on Cisco.com.)

•Username-and-password pair configuration for controlling switch access.

•VLANs for grouping network users according to functions, teams, or applications, and regardless

of the physical location of the network users. The switch supports up to 32 VLANs.

VLAN support includes these features:

–

Spanning Tree Protocol (STP) prevents network loops from developing and provides a

redundant path if the active path becomes unavailable.

–

Internet Group Management Protocol (IGMP) snooping reduces duplicate and excess traffic

on the network.

•EtherChannels for bundling multiple Fast Ethernet or Gigabit Ethernet ports into a single logical

link to create a higher bandwidth link between the switch and another switch.

•Simple Network Management Protocol (SNMP) versions 1, 2C, and 3 to allow a remote network

management station to access, monitor, and control the switch.

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User Guide for the Catalyst Express 500 Switches

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Chapter 1 Introduction

Features and Benefits

Figure 1-3 Device Manager Interface

Chapter 1 Introduction

System Requirements

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User Guide for the Catalyst Express 500 Switches

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Figure 1-4 Device Manager Online Help

System Requirements

•Hardware Requirements, page 1-11

•Software Requirements, page 1-11

Andere Handbücher für Catalyst Express 500

Dieses Handbuch passt für folgende Modelle

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