Dell PowerConnect 2808 User manual

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Dell™ PowerConnect™
28xx Systems
User Guide

Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.
____________________
Information in this document is subject to change without notice.
© 2012 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, Dell OpenManage, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, PowerConnect,
PowerApp, PowerVault, Axim, DellNet, and Latitude are trademarks of Dell Inc. Microsoft and Windows are either trademarks or registered
trademarks of Microsoft Corporation in the United States and/or other countries.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
March 4, 2012 Rev. A04

3
Contents
1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PowerConnect 2808 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PowerConnect 2816 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PowerConnect 2824 . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PowerConnect 2848 . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Summary of PowerConnect Models . . . . . . . . . . . . . . . . . . . 11
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MAC Address Supported Features . . . . . . . . . . . . . . . . . . . . 13
Layer 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
VLAN Supported Features. . . . . . . . . . . . . . . . . . . . . . . . 14
Spanning Tree Protocol Features . . . . . . . . . . . . . . . . . . . . . 15
Class of Service (CoS) Features . . . . . . . . . . . . . . . . . . . . . 16
Ethernet Switch Management Features. . . . . . . . . . . . . . . . . . 16
2 Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . 17
Switch Port Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PowerConnect 28xx Front and Back Panel Port Description . . . . . . . 17
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LED Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Managed Mode LED. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan LED (2824/2848 only) . . . . . . . . . . . . . . . . . . . . . . . 22
Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Managed Mode Button. . . . . . . . . . . . . . . . . . . . . . . . . . 23
Switch Ventilation Fan . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cables, Port Connections, and Pinout Information . . . . . . . . . . . . . . 24
1000BASE-T Cable Requirements. . . . . . . . . . . . . . . . . . . . 24
RJ-45 Connections for 10/100/1000BASE-T Ports. . . . . . . . . . . . 24
SFP Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4
Power Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Internal Power Supply Connector . . . . . . . . . . . . . . . . . . . . 26
3 Installing the PowerConnect Device . . . . . . . . . . . . . . 27
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Site Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unpacking the Device . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Device Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . 29
Installing on a Flat Surface. . . . . . . . . . . . . . . . . . . . . . . . 30
Installing on a Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Connecting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Connecting the Device to the Network . . . . . . . . . . . . . . . . . . . . 33
Connecting the Terminal to the Device . . . . . . . . . . . . . . . . . . . . 33
Connecting a Device to a Power Supply . . . . . . . . . . . . . . . . . 34
Port Connections, Cables, and Pinout Information . . . . . . . . . . . . . . 35
RJ-45 Connections for 10/100/1000BaseT Ports . . . . . . . . . . . . . 35
Port Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
MDI/MDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Flow Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Back Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Switching Port Default Settings . . . . . . . . . . . . . . . . . . . . . 38
4 Starting and Configuring the Device . . . . . . . . . . . . . . 39
Management Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Transitioning Between Modes. . . . . . . . . . . . . . . . . . . . . . . . . 42
Booting the Device - Managed Mode . . . . . . . . . . . . . . . . . . . . . 44
Initial Configuration Through the Set-up Wizard . . . . . . . . . . . . . . . 44

5
Initial Configuration Through the Web . . . . . . . . . . . . . . . . . . . . 48
Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Retrieving an IP Address From a DHCP Server . . . . . . . . . . . . . 49
Startup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Software Download . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Erase FLASH File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Erasing the Device Configuration . . . . . . . . . . . . . . . . . . . . 51
Password Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Software Download Through TFTP Server . . . . . . . . . . . . . . . 52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5 Using Dell OpenManage Switch Administrator. . . . . . . 54
Understanding the Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Using the Switch Administrator Buttons . . . . . . . . . . . . . . . . . . . 55
Information Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Device Management Buttons . . . . . . . . . . . . . . . . . . . . . . 56
Starting the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6 Configuring System Information. . . . . . . . . . . . . . . . . 58
Defining General Device Information . . . . . . . . . . . . . . . . . . . . . 58
Viewing Device Information . . . . . . . . . . . . . . . . . . . . . . . 58
Viewing the Versions Page . . . . . . . . . . . . . . . . . . . . . . . . 60
Resetting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Entering Secure Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Defining Device IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . 63
Defining IP Interface Parameters. . . . . . . . . . . . . . . . . . . . . 63
Running Cable Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Viewing Copper Cable Diagnostics . . . . . . . . . . . . . . . . . . . 64
Viewing Optical Transceiver Diagnostics . . . . . . . . . . . . . . . . 65
Managing Device Security . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Defining the Local User Databases. . . . . . . . . . . . . . . . . . . . 68
Configuring RADIUS Global Parameters . . . . . . . . . . . . . . . . 70

6
Defining SNMP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Defining SNMP Global Parameters . . . . . . . . . . . . . . . . . . . 74
Defining Communities . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Defining SNMP Notification Recipients . . . . . . . . . . . . . . . . . 77
Managing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Downloading Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Uploading Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Restoring Default Settings . . . . . . . . . . . . . . . . . . . . . . . . 82
Defining DHCP Server Settings. . . . . . . . . . . . . . . . . . . . . . . . 83
Configuring DHCP Properties . . . . . . . . . . . . . . . . . . . . . . 83
Defining Network Pool . . . . . . . . . . . . . . . . . . . . . . . . . 85
Excluding Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Manually Allocating IP Addresses (Static Hosts) . . . . . . . . . . . . 88
Address Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Defining Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . 92
Configuring General Device Parameters . . . . . . . . . . . . . . . . . 92
7 Configuring Device Switching . . . . . . . . . . . . . . . . . . 93
Configuring Network Security . . . . . . . . . . . . . . . . . . . . . . . . 93
Configuring Port Based Authentication . . . . . . . . . . . . . . . . . 94
Configuring Advanced Port Based Authentication . . . . . . . . . . . . 97
Authenticating Users. . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Configuring Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Defining Port Parameters . . . . . . . . . . . . . . . . . . . . . . . 101
Aggregating Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Configuring Green Ethernet . . . . . . . . . . . . . . . . . . . . . . 106
Enabling Storm Control . . . . . . . . . . . . . . . . . . . . . . . . 108
Defining Port Mirroring Sessions . . . . . . . . . . . . . . . . . . . 110
Configuring Address Tables. . . . . . . . . . . . . . . . . . . . . . . . . 112
Viewing Dynamic Addresses. . . . . . . . . . . . . . . . . . . . . . 112
Configuring the Spanning Tree Protocol . . . . . . . . . . . . . . . . . . 114
Defining STP Global Settings . . . . . . . . . . . . . . . . . . . . . 114
Defining STP Port Settings . . . . . . . . . . . . . . . . . . . . . . 117
Defining STP LAG Settings . . . . . . . . . . . . . . . . . . . . . . 120
Configuring Rapid Spanning Tree . . . . . . . . . . . . . . . . . . . 122

7
Configuring VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Defining VLAN Members . . . . . . . . . . . . . . . . . . . . . . . 124
VLAN Port Membership Table . . . . . . . . . . . . . . . . . . . . 126
Defining VLAN Ports Settings. . . . . . . . . . . . . . . . . . . . . 128
Defining VLAN LAG Settings. . . . . . . . . . . . . . . . . . . . . 129
Aggregating Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Defining LAG Membership . . . . . . . . . . . . . . . . . . . . . . 132
Multicast Forwarding Support . . . . . . . . . . . . . . . . . . . . . . . 132
Defining Multicast Global Parameters . . . . . . . . . . . . . . . . . 133
Adding Bridge Multicast Address Members . . . . . . . . . . . . . . 134
Assigning Multicast Forward All Parameters . . . . . . . . . . . . . 136
IGMP Snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
8 Viewing Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . 141
Viewing RMON Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . 141
Viewing RMON Statistics Group . . . . . . . . . . . . . . . . . . . 141
Viewing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Viewing the CPU Utilization. . . . . . . . . . . . . . . . . . . . . . 142
9 Configuring Quality of Service. . . . . . . . . . . . . . . . . 144
Defining CoS Global Parameters . . . . . . . . . . . . . . . . . . . . . . 146
Defining CoS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Defining QoS Interface Settings. . . . . . . . . . . . . . . . . . . . . . . 147
Defining Queue Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Mapping CoS Values to Queues . . . . . . . . . . . . . . . . . . . . . . . 150
Mapping DSCP Values to Queues. . . . . . . . . . . . . . . . . . . . . . 151
A Managing the Device Using the CLI . . . . . . . . . . . . . 153
Accessing the Device Through the CLI . . . . . . . . . . . . . . . . . . . 153
Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Telnet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

8
Using the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Command Mode Overview . . . . . . . . . . . . . . . . . . . . . . 154
User EXEC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Privileged EXEC Mode . . . . . . . . . . . . . . . . . . . . . . . . 155
Global Configuration Mode . . . . . . . . . . . . . . . . . . . . . . 155
Interface Configuration Mode . . . . . . . . . . . . . . . . . . . . . 156
CLI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Command: copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Command: debug-mode . . . . . . . . . . . . . . . . . . . . . . . . 158
Command: do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Command: end. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Command: exit (configuration) . . . . . . . . . . . . . . . . . . . . 159
Command: exit (EXEC) . . . . . . . . . . . . . . . . . . . . . . . . 160
Command: help . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Command: interface ethernet . . . . . . . . . . . . . . . . . . . . . 160
Command: interface port-channel . . . . . . . . . . . . . . . . . . . 161
Command: interface vlan . . . . . . . . . . . . . . . . . . . . . . . 161
Command: ip address . . . . . . . . . . . . . . . . . . . . . . . . . 162
Command: ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Command: show tech-support command. . . . . . . . . . . . . . . . 165
Command: snmp-server community . . . . . . . . . . . . . . . . . . 166
Command: username. . . . . . . . . . . . . . . . . . . . . . . . . . 167
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Dell PowerConnect 28xx Systems User Guide 9
1
Introduction
This User’s Guide contains the information needed for installing, configuring and maintaining the
PowerConnect 2808, PowerConnect 2816, PowerConnect 2824, and PowerConnect 2848 Web-
managed Gigabit Ethernet switches.
The PowerConnect 28xx switches can be used to connect workstations and other network devices,
such as:
•Servers
•Hubs
•Routers
The PowerConnect devices are primarily designated for the Small Office/Home Office (SOHO) that
require high performance edge connectivity. These PowerConnect devices are ideal for the small to
medium business that requires high performance network connectivity along with advanced web
management features. The PowerConnect management features are designed to minimize
administrative management effort, while enhancing and improving network traffic control.
System Description
This section describes the hardware configurations of the PowerConnect 28xx. The switches are
managed by Dell’s OpenManage Switch Administrator.
PowerConnect 2808
The following figure illustrates the PowerConnect 2808 front panel.
Figure 1-1. PowerConnect 2808 Front Panel
The PowerConnect 2808 supports the following ports:
• 8 Gigabit Ethernet copper ports
PowerConnect 2816
The following figure illustrates the PowerConnect 2816 front panel.
1

10 Dell PowerConnect 28xx Systems User Guide
Figure 1-2. PowerConnect 2816 Front Panel
The PowerConnect 2816 supports the following ports:
• 16 Gigabit Ethernet copper ports
PowerConnect 2824
The following figure illustrates the PowerConnect 2824 front panel.
Figure 1-3. PowerConnect 2824 Front Panel
The PowerConnect 2824 supports the following ports:
• 24 Gigabit Ethernet copper ports
• 2 SFP combo ports (1000BASE-SX or 1000BASE-LX)
PowerConnect 2848
The following figure illustrates the PowerConnect 2848 front panel.
Figure 1-4. PowerConnect 2848 Front Panel
The PowerConnect 2848 supports the following ports:
• 48 Gigabit Ethernet copper ports
• 4 SFP combo ports (1000BASE-SX or 1000BASE-LX)