LINKSYS SFE2000, SFE2000P User Manual

Linksys SFE2000/SFE2000P Fast Ethernet Switch

Administration Guide

LINKSYS SFE2000/SFE2000P FAST ETHERNET SWITCH

Release 1.0

Specifications are subject to change without notice.

Linksys, the Cisco Systems logo, the Linksys Logo, and the Linksys One logo are registered trademarks of Cisco Systems, Inc. All other trademarks mentioned in this document are the property of their respective owners.

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Contents

Chapter 1: Introduction - - - - - - - - - - - - - - - - - - - - - - - - -1

What’s in this User Guide? 1

Chapter 2: Getting to Know the Switch - - - - - - - - - - - - - - - - -3

Overview 3 The Front Panel 3

Front Panel LEDs 3 LAN Port LEDs 4 Uplink Port LEDs 4 Stack ID LEDs 5 Reset Switch 5 LAN Ports 5 Uplink Ports 6

The Back Panel 6

Power Port 7 Console Port 7 RPS Port 7

Chapter 3: Connecting the Switch - - - - - - - - - - - - - - - - - - - -8

Overview 8 Before You Install the Switch... 8 Placement Options 9

Desktop Placement 9 Rack-Mount Placement 9

Wall-Mount Placement 10 Connecting the Cables 10 Stacking Multiple Switches 12

Connecting Cabling for Stacking 13 Managing Stacks 14

Building Automatically-Configured Stacks 14

Building Manually-Configured Stacks 14 Understanding Stack Resiliency 15 Understanding Advanced Stacking 15

Unit IDs 15 Stack Unit Startup Process 17

Configuring Units and Ports 20

Setting the Unit’s Operational Mode 21 Configuring the Stack Master and Unit ID 21 Resetting the Unit to Factory Default Mode 23 Understanding LED Indicators 23

Stack Troubleshooting and Maintenance 24

Replacing a Failed Member Stack Unit in an Operational Stack 24 Replacing a Failed Stack Master Unit in an Operational Stack 25 Splitting a Stack 27 Merging Two Stacks 29 Understanding Stacking Cable Failure 31 Inserting Too Many Units into a Stack 31 Inserting a Standalone Unit into a Running Stack 32

Chapter 4: Console Configuration - - - - - - - - - - - - - - - - - - - 33

Overview 33 Configuring the HyperTerminal Application 33 Connecting to the Switch using Telnet or SSH 35 Configuring the Switch through the Console or Telnet Interface 35

Switch Main Menu 36

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Chapter 5: Web Utility Configuration - - - - - - - - - - - - - - - - - 50

Overview 50 Accessing the Web-based Utility 50 Viewing Online Help 50

Appendix A: Linksys Contact Information - - - - - - - - - - - - - - - 51

Appendix B: Customer Site Survey - - - - - - - - - - - - - - - - - - 53

Appendix C: Limited Warranty - - - - - - - - - - - - - - - - - - - - 56

EXCLUSIONS AND LIMITATIONS 56 OBTAINING WARRANTY SERVICE 57 TECHNICAL SUPPORT 58

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Appendix D: Federal Communication Commission Interference Statement 59

Industry Canada Statement 59

EC Declaration of Conformity (Europe) 59

Appendix E: Specifications - - - - - - - - - - - - - - - - - - - - - - 60

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Linksys One Portal

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Introduction

Welcome

Thank you for choosing a Linksys Ethernet switch. This Ethernet switch allows you to quickly and easily expand your Linksys One system. It delivers non-blocking, wire speed switching for your network clients, plus multiple options for connecting to your network backbone. Twenty four ports wire up your workstations or connect to other Linksys switches or devices. LED indicators provide power, link, and activity status.

The Ethernet switch features monitoring and configuration via the Linksys One Portal, your web browser, or the console interface. If your Ethernet switch is part of a Linksys One system, the easiest way to manage it is with the Linksys One Portal — available only on the Linksys One Services Router. Refer to the Linksys One Customer Premises Equipment Administration Guide for more details on the Linksys One Portal.

The Ethernet switch supports numerous security features including the Remote Authorization and Authentication (RADIUS) and Terminal Access Controller Access Control System (TACACS+) protocols. With Simple Network Time Protocol (SNTP), the Ethernet switch can synchronize its clock with a time server available on one of its attached networks.

The system is fully manageable using a combination of a database of MIB (Management Information Base) variables, whose combined values represent all facets of the system state, and the Simple Network Management Protocol (SNMP) protocol.

The “P” model of the Ethernet switch supports Power over Ethernet (PoE) which eliminates the need to run 110/220 VAC power to wireless network, IP telephony, or other PoE powered devices on the Linksys network. Use of a PoE system allows greater flexibility in locations of network devices, and significantly decreasing installation costs. The entire PoE system can be centrally powered by uninterruptible power supplies if necessary.

What’s in this User Guide?

This user guide covers the steps for setting up and using the Ethernet switch. Use the instructions in this guide to help you connect the switch, set it up, and configure it to your Linksys network. These instructions should be all you need to get the most out of your Ethernet switch.

Chapter 1: Introduction What’s in this User Guide?

This user guide contains the following chapters:

Chapter 1, "Introduction"

This chapter describes the Ethernet switch applications and provides an overview of the content of this administration guide.

Chapter 2, "Getting to Know the Switch"

This chapter describes the physical features of the Ethernet switch.

Chapter 3, "Connecting the Switch"

This chapter explains how to install and connect the Ethernet switch.

Chapter 4, "Console Configuration"

This chapter describes how to use the console interface when you configure the Ethernet switch.

Chapter 5, "Web Utility Configuration"

This chapter shows you how to configure the Ethernet switch using the Web-based Utility.

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Chapter 1: Introduction

What’s in this User Guide?

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Getting to Know the Switch

Overview

The SFE2000 and SFE2000P models are 24-port, layer-2 Ethernet switches that expand the capability of the Linksys system. These two versions are functionally identical except the SFE2000P model offers Power-over-Ethernet (PoE) which can be used to supply power to various Linksys products over Ethernet cable.

The Front Panel

The Switch's LEDs and Ethernet ports are located on the front panel.

Front Panel LEDs

System Status LEDs. Four LEDs indicate the status

of the Ethernet switch power, fan, RPS connectivity,

and stack master. For more details, refer to

”System Status LEDs,” on page 4.

LAN Ports. Twenty four 10/100 BaseT LAN ports provide connectivity to other Linksys devices. For

more details, refer to ”LAN Ports,” on page 5.

Gigabit Interface Converter (mini-GBIC) Uplink Ports. Two mini-GBIC ports provide uplink ports

which support network speeds of 10Mbps,

100Mbps, and 1000Mbps. For more details, refer

”Uplink Ports,” on page 6.

Uplink Ports. Four 10/100/1000 Uplink ports. Ports G3 and G4 are shared with ports mini-GBIC 1 and mini-GBIC 2 respectively. These ports can

also be used for stacking multiple units. For more details, refer to ”Uplink Ports,” on page 6.

The Switch uses Light Emitting Diodes (LEDs) to indicate the status of numerous functions. These functions are listed below.

Chapter 2: Getting to Know the Switch Overview

Stack ID. If stacking is active, indicates the ID

number of the stack. For more details, refer to

”Stack ID LEDs,” on page 5.

RESET Switch. Resets the SFE2000/SFE2000P Ethernet switch. For more details, refer to

Switch,” on page 5

”Reset

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System Status LEDs

PWR A green PWR LED lights to indicate that the Ethernet switch is powered

by internal power supplies. If the Ethernet switch is powered by a remote power supply (RPS), this LED blinks red.

FAN A green FAN LED lights to indicate that the cooling fan is operating

properly. A blinking red FAN LED indicates that the cooling fan has failed.

RPS A green RPS LED lights to indicate that RPS is connected and operating

properly. A blinking red RPS LED indicates an RPS fault.

MST A green MST LED indicates that this Ethernet switch is a stack master.

LAN Port LEDs

Act/Link The green Act/Link LEDs light to indicate a functional network link

through the corresponding port with an attached device. The Act (Activity) LEDs flash to indicate that the Ethernet switch is actively sending or receiving data over that port.

• On the SFE2000, a green Link LED indicates that the port is linked to a 10/100Mbps device.

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• On the SFE2000P, a green Link LED indicates that PoE is active on that port.

Uplink Port LEDs

Act/Link The green Act/Link LEDs light to indicate a functional network link

through the corresponding port with an attached device. The Act (Activity) LEDs flash to indicate that the Ethernet switch is actively sending or receiving data over that port.

Gigabit The Gigabit LED lights indicate a Gigabit connection on the

corresponding port.

Chapter 2: Getting to Know the Switch

The Front Panel

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Stack ID LEDs

Stack ID A green Stack ID LED indicates that this Switch is stacked and the

corresponding number indicates its stack ID. Range is 1 to 8.

Reset Switch

The Ethernet switch can be reset by inserting a pin or paper clip into the RESET opening. If the reset switch is held for 10 seconds or longer, the Ethernet switch will be reset to its default settings.

CAUTION: All user-defined settings are lost when you hold the Reset button for 10 seconds or longer; the Ethernet switch reverts to its default settings.

When a unit is reset to its default setting, the unit restarts in stackable mode using default stacking ports with autonumbering enabled. Pressing the reset button on the master unit of a stack resets all units in the stack.

LAN Ports

The Ethernet switch is equipped with 24 Ethernet ports.

1-24 The Switch is equipped with 24 auto-sensing, Ethernet (IEEE 802.3)

network ports, which use RJ-45 connectors. The Fast Ethernet ports support network speeds of 10Mbps or 100Mbps. They can operate in half and full-duplex modes. Auto-sensing technology enables each port to automatically detect the speed of the device connected to it, and adjust its speed and duplex accordingly.

Chapter 2: Getting to Know the Switch The Front Panel

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1 2

DC INPUT FOR REMOTE POWER SUPPLY SPECIFIED IN MANUAL +12V, 7.5A

Uplink Ports

The Switch is equipped with 4 uplink ports and 2 mini-GBIC uplink ports.

G1-G4 Ports G1-G4 are Ethernet (IEEE 802.3ab) uplink ports which support

network speeds of 10Mbps, 100Mbps, and 1000Mbps. Ports G3 and G4 are shared with GBIC1 and GBIC2 ports, respectively. If shared ports pairs are both connected, then the mini-GBIC port takes priority.

In stacking mode, two ports are used for stacking. Use only ports G1/ G2 for stacking. In standalone mode, all four ports can be used as uplinks.

GBIC1/2 The Switch provides two mini-GBIC ports. The mini-GBIC port is a

connection point for a mini-GBIC expansion module, so the Switch can be uplinked via fiber or copper to another switch. Each mini-GBIC port provides a link to a high-speed network segment or individual workstation at speeds of up to 1000Mbps.

Use the Linksys MGBT1, MGBSX1, or MGBLH1 mini-GBIC modules with the Switch. The MGBSX1 and the MGBLH1 require fiber cabling with LC connectors, while the MGBT1 requires a Category 5e Ethernet cable with an RJ-45 connector.

The Back Panel

Power Port. The Power port is where you will

connect the power cord. For more details, refer to

”Power Port,” on page 7.

Console Port. The Console port is where you can connect a serial cable to a PC’s serial port for

configuration. For more details, refer to ”Console

Port,” on page 7

RPS Port. Redundant Power Supply (RPS) port. For

more details, refer to

”RPS Port,” on page 7.

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The power port is located on the back panel of the Ethernet switch.

Chapter 2: Getting to Know the Switch

The Back Panel

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Power Port

The 100-240 VAC power cord is connected to the Power port.

CAUTION: Only use the power cord that is supplied with the Ethernet switch. The unit may be damaged if the incorrect power cord is used.

Console Port

The Console port is where you connect a serial cable to a PC’s serial port for configuration using your PC’s HyperTerminal program. Refer to ”Configuring the HyperTerminal

Application,” on page 33 for more information.

NOTE: Many modern laptop computers are not supplied with serial ports. You may use a USB-to-Serial adapter on your laptop to connect to the console serial port.

RPS Port

An optional Redundant Power Supply (RPS) is connected to the RPS port. An RPS enhances the reliability of the Ethernet switch and it can keep the unit running if a power failure occurs. Only use a Linksys RPS1000 Redundant Power Supply unit and a proper RPS cable (RPSCBL1) with the Ethernet switch.

WARN IN G: Do not remove the cover from the RPS port unless an RPS unit is connected to the Ethernet switch. Keep the RPS port covered when not in use.

Chapter 2: Getting to Know the Switch The Back Panel

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Connecting the Switch

Overview

This chapter will explain how to connect network devices to the Ethernet switch. For an example of a possible network configuration, see the application diagrams shown below.

Before You Install the Switch...

When you choose a location for the Ethernet switch, observe the following guidelines:

• Make sure that the Ethernet switch will be accessible and that the cables can be easily connected.

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• Keep cabling away from sources of electrical noise, power lines, and fluorescent lighting fixtures.

• Position the Ethernet switch away from water and moisture sources.

• To ensure adequate air flow, be sure to provide a minimum clearance of two inches (50 mm) around the air intake and exhaust ports on the sides of the Ethernet switch.

• Do not stack free-standing Ethernet switches more than four units high. The stacking configuration, described in ”Stacking Multiple Switches,” on page 12, allows up to eight units to be logically stacked together. It is recommended that multiple Ethernet switches be mounted in a rack when installed in this manner. Ethernet switches can be physically placed at different locations; they do not have to be stacked at the same location.

Chapter 3: Connecting the Switch

Overview

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Placement Options

Before connecting cables to the Ethernet switch, first you will physically install the Ethernet switch. Either set the Ethernet switch on its four rubber feet for desktop placement, mount it in a standard-sized, 19-inch wide for rack-mount placement, or mount it on a wall with the wall-mount brackets provided.

NOTE: The four supplied mounting brackets can be used for either wall mount or rack mount installations.

Desktop Placement

1. Attach the rubber feet to the recessed areas on the bottom of the Ethernet switch.

2. Place the Ethernet switch on a desktop near an AC power source.

CAUTION: Keep enough ventilation space for the Ethernet switch so it does not exceed the environmental restrictions mentioned in the specifications.

Rack-Mount Placement

To mount the Ethernet switch in any standard-sized, 19-inch wide, (each Ethernet switch requires 1RU of space in the rack), follow these instructions:

1. Remove the four front screws on one side of the Ethernet switch. Retain the screws for reinstallation.

2. Place one of the supplied spacers on the side of the Ethernet switch so the four holes align to the screw holes.

3. Place a rack mount bracket next to the spacer and reinstall the four screws (removed in step 1).

Chapter 3: Connecting the Switch Placement Options

4. Repeat steps 2 through 3 for the other side of the Ethernet switch.

NOTE: If connecting an Ethernet switch to an SVR3000 router, connect it to a Cascade port on the SVR3000.

5. Attach the Ethernet switch to the rack using the supplied screws.

Wall-Mount Placement

1. On one of the side corners, remove the four front screws on of the Ethernet switch. Retain the screws for re-installation.

NOTE: The Ethernet switch, shown below, is mounted with the ports located on top. When the switch is mounted to a wall, the ports can be oriented in any direction.

2. Place one of the supplied spacers on the side of the Ethernet switch so the four holes align to the screw holes.

3. Place a rack mount bracket next to the spacer and reinstall the four screws (removed in step 1). The wall mount brackets should point towards the bottom of the Ethernet switch.

4. Repeat steps 1 through 3 for the other corners of the Ethernet switch.

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5. Attach the Ethernet switch to a wall with appropriate screws (not supplied).

CAUTION: Ensure that the Ethernet switch is securely attached to the wall.

Connecting the Cables

To connect network devices to the Ethernet switch, follow these instructions:

1. For 10/100Mbps devices, connect a Category 5 Ethernet network cable to one of the numbered ports on the Ethernet switch. For a 1000Mbps device, connect a Category 5e Ethernet network cable to one of the uplink ports on the Ethernet switch.

2. Connect the other end to a PC or other network device.

Chapter 3: Connecting the Switch

Connecting the Cables

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3. Repeat steps 2 and 3 to connect additional devices.

4. If you are using the mini-GBIC port, then insert the mini-GBIC module to the mini-GBIC port. For detailed instructions, refer to the documentation supplied with the mini-GBIC module.

CAUTION: Observe the orientation of the mini-GBIC module before inserting it into a mini-GBIC port. The bottom miniGBIC ports are upside down in relation to the top mini-GBIC ports.

5. If you use the console interface to configure the Ethernet switch, then connect the supplied serial cable to the console port (located on the back of the Ethernet switch), and tighten the captive retaining screws. Connect the other end to your PC’s serial port. (The PC must be running VT100 terminal emulation software, such as HyperTerminal.)

6. Connect the supplied power cord to the power port, and plug the other end into an electrical outlet.

CAUTION: Make sure you use the power cord that is supplied with the Ethernet switch. Use of a different power cord could damage the Ethernet switch.

7. Power on the network devices connected to the Ethernet switch. Each active port’s corresponding Act/Link LED will light up on the Ethernet switch. If a port has an active Gigabit connection, then its corresponding Gigabit LED will also light up.

If you will use the console interface to configure the Ethernet switch, proceed to ”Console Configuration” section on page 33 for directions.

If you use the Web-based Utility to configure the Ethernet switch, proceed to ”Web Utility Configuration” section on page 50.

Chapter 3: Connecting the Switch Connecting the Cables

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Stacking Highlights

• In stacking mode, each Ethernet switch is given a unique ID, from 1 to 8.

• Stack IDs 1 and 2 are Master-Enabled units.

• All Ethernet switches in the stack must run the same version of software.

• The Stack Master switch maintains the configuration.

• Stack cannot combine Linksys SFE2000 and SGE2000 family Ethernet switches.

• By factory default, Ethernet switches boot in stacking mode.

• Stack ID can be user assigned or automatically assigned.

• Stacking ports are available to user in standalone mode as regular network ports.

• Settings are applied only to the master unit; certain changes take place only after reset.

Stacking Multiple Switches

The Stacking configuration provides multiple switch management through a single point as if all stack master and stack members were a single Ethernet switch. All stack masters are accessed through a single IP address through which the stack is managed. The stack can be managed from the web-based interface or the console interface.

You can build stacks by building a new stack from a group of switches, or adding new units to an existing stack. Stacks can be automatically or manually configured.

NOTE: Two ports of each unit in a stack mode (ports 12 and 24 on GE units, and ports G1 and G2 on FE units) are reserved for stacking links, and cannot be used for regular network connections.

Switch software is downloaded separately for each stack member. However, all units in the stack must be running the same software version.

A stack unit can operate in one of the following modes:

• Stand-alone — A switch operating in standalone mode runs as an independent, single unit. All ports of a standalone switch operate as normal Ethernet links. A standalone switch does not participate in a stack even if physically connected to a stack.

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• Stack — Indicates the device operates as a Stacked unit after the system is reset. A switch operating in stack mode is not an independent unit, but a member of an organized group of switches known as a stack. A stack consists of one Stack Master control switch, one Master Backup switch and up to six Stack Member switches. In some cases, a unit that is not connected to any other units may operate as a “stack– of-one.”

The Stack Master unit manages the stack and is responsible for the configuration. The Master Backup Runs as a slave unit and monitors the operation of the stack master. A stack member runs a slave version of the switching algorithm, which allows the applications running on the master unit to control the resources of the member unit.

Chapter 3: Connecting the Switch

Stacking Multiple Switches

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By default, the Ethernet switch is in stacking mode. Using the console interface or the web interface, you can change the mode to standalone mode.

TIP: Power the Ethernet switches in the order that you want them in the Stack ID. The first powered Ethernet switch in a stack is assigned as the Master Unit, the next powered unit is assigned as the Master-Backup. The remaining units are assigned Stack IDs in the order that they are powered.

When the device is in standalone mode, the stacking ports can be used as regular ports.

Connecting Cabling for Stacking

When the Ethernet switch is in stacking mode, ports G1 – G2 (copper Gigabit Ethernet ports) are reserved as stacking ports and cannot be used as network ports. In this case, either fiber or copper ports can be used for stacking.

Chapter 3: Connecting the Switch Stacking Multiple Switches

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Managing Stacks

Building Automatically-Configured Stacks

Building a New Stack

The easiest way to build a stack is to use a group of switches, each of which is in factory default mode:

NOTE: If the units to be used in building the new stack have been used previously, we recommend that you reset them to the factory default by holding the reset button for at least 10 seconds before using them.

8. Connect the units physically through the stacking ports, using standard Ethernet cables.

9. Power the units on. After a short interval the stack becomes operational, with one of the units selected as the Stack Master. The unit selected as Stack Master is indicated by a lit green “MST” LED on its front panel. If a serial console connection is desired, the serial cable should be connected to the console port of the unit serving as the Stack Master.

Adding Units to a Running Stack

1. Reset the units that will be added by restoring them to the factory default mode. Connect the

units physically to the stack.

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2. Power the units on. After a short interval, they will become members of the stack.

Building Manually-Configured Stacks

You can manually configure stacks, including choosing a specific unit as the Stack Master. You must assign a unique Unit ID (from 1 to 8) to each stack member.

Building a New Stack

1. Reset all relevant units to by restoring them to the factory default mode.

2. Connect the units physically through the stacking ports, using standard Ethernet cables.

3. Assign each unit its desired number, making sure no duplicates exist, and reset the stack.

Chapter 3: Connecting the Switch

Managing Stacks

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Adding Units to a Running Stack

1. Reset the units to be added by restoring them to the factory default mode.

2. Connect the units physically to the stack.

3. Power the units on. After a short interval, they will become stack members, but will have automatically-assigned Unit IDs. Assign each such unit its desired Unit ID (using the Stack Management Interface through the console port, by Telnet, or by using the graphical user interface (GUI).

4. Reset the units to make this assignment permanent.

NOTE: We recommended that if you manually assign a Unit ID to one unit, you manually assign Unit IDs to all units. Using a mix of both system-assigned and manuallyassigned IDs in your network can impact system performance.

5. The unit that is assigned the Unit ID 1 is the Stack Master, and its front panel “MST” LED lights green. The unit assigned the Unit ID 2 is the Backup Master.

Understanding Stack Resiliency

Stacks can be configured in ring or chain topologies. We recommend configuring the stack in ring topology, due to the high resiliency in case of unit failure or stacking links failure.

Additionally, if a redundant power supply is present, we recommend connecting the Stack Master and Backup Master units to the redundant power supply.

Understanding Advanced Stacking

To understand advanced stacking, you must understand Unit IDs and how they are allocated, and the stack unit startup process.

Unit IDs

Each unit in a stack has an assigned unique Unit ID number. The following sections describe the Unit IDs and their characteristics.

Chapter 3: Connecting the Switch Understanding Stack Resiliency

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Stack Master

The unit assigned the Unit ID number 1 serves as the Stack Master. All other units are stack members. The Stack Master provides a single point of control, configuration and management for the entire stack, and stores the configuration for all stack members. (Members do not store any configuration information.)

Stack Backup Master

The unit assigned the Unit ID number 2 is a special stack member that serves as the stack Backup Master. A stack Backup Master assumes the role of Stack Master for the remaining stack members if the stack Master fails or is disconnected.

The Stack Master stores a copy of the active configuration on the Backup Master. This copy is used only if the Backup Master assumes the role of Stack Master.

NOTE: Only the configuration file is copied. Any dynamically-filled tables (for example, learned addresses) are not copied from the Stack Master to the Backup Master. If the Backup Master assumes the role of Stack Master, it builds its own dynamic tables.

Stack Members

The units assigned the Unit IDs 3 through 8 are called stack members. A stack member operates only as a member of the stack under the direction of an operational Stack Master (or a Backup Master that has assumed the Stack Master role). Stack members are not directly manageable and configurable, and must be managed through the Stack Master. They do not contain any meaningful configuration information, including their own configuration. If an operational Stack Master is not present and reachable, these units are not functional.

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Master-Enabled Units

Units that are assigned a Unit ID number of 1 or 2 are called master-enabled units. Only master-enabled units participate in the Master Election process (see below) when they are initialized, are inserted into a new stack, or lose connectivity with the existing Stack Master. Only master-enabled units participate in the Master Election process and can become the Stack Master or Backup Master. (Units that are assigned a Unit ID of 3 through 8 can only

Chapter 3: Connecting the Switch

Understanding Advanced Stacking

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