ZyXEL Communications GS1900 Series User manual

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User’s Guide
GS1900 Series
GbE Smart Managed Switch
Copyright © 2021 Zyxel and/or its affiliates. All Rights Reserved.
IP Address http://192.168.1.1 (In-band ports)
User Name admin
Password 1234
Version 2.70 Edition 1, 11/2021

GS1900 Series User’s Guide
2
IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP THIS GUIDE FOR FUTURE REFERENCE.
Screenshots and graphics in this book may differ slightly from your product due to differences in your
product firmware or your computer operating system. Every effort has been made to ensure that the
information in this manual is accurate.
Note: This guide is a reference for a series of products. Therefore some features or options in
this guide may not be available in your product.
Note: It is recommended you use the Web Configurator to configure the Switch.
Related Documentation
• Online Help
Click the help link for a description of the fields in the Switch menus.
•MoreInformation
Go to https://businessforum.zyxel.com for product discussions.
•Gotosupport.zyxel.com to find other information on the Switch.

GS1900 Series User’s Guide
3
Document Conventions
Warnings and Notes
These are how warnings and notes are shown in this guide.
Warnings tell you about things that could harm you or your device.
Note: Notes tell you other important information (for example, other things you may need to
configure or helpful tips) or recommendations.
Syntax Conventions
• All models may be referred to as the “Switch” in this guide.
• Product labels, screen names, field labels and field choices are all in bold font.
• A right angle bracket ( > ) within a screen name denotes a mouse click. For example, Configuration >
System > Information means you first click Configuration in the navigation panel, then the System sub
menu and finally the Information tab to get to that screen.
Icons Used in Figures
Figures in this user guide may use the following generic icons. The Switch icon is not an exact
representation of your device.
Switch Generic Switch Generic Router
IP Camera Firewall Cell Tower
Printer Server

Contents Overview
GS1900 Series User’s Guide
4
Contents Overview
User’s Guide ......................................................................................................................................16
Getting to Know Your Switch .............................................................................................................. 17
Hardware Installation and Connection ............................................................................................. 23
Hardware Overview ............................................................................................................................. 30
ZON Utility ............................................................................................................................................... 43
Web Configurator ................................................................................................................................. 48
Getting Started ..................................................................................................................................... 59
Technical Reference ........................................................................................................................71
Monitor: System ..................................................................................................................................... 72
Monitor: Port .......................................................................................................................................... 75
Monitor: VLAN ....................................................................................................................................... 84
Monitor: MAC Table ............................................................................................................................. 90
Monitor: Link Aggregation ................................................................................................................... 93
Monitor: Loop Guard ........................................................................................................................... 95
Monitor: Multicast ................................................................................................................................. 98
Monitor: Spanning Tree ...................................................................................................................... 102
Monitor: LLDP ....................................................................................................................................... 108
Monitor: Security ................................................................................................................................. 112
Monitor: Management ...................................................................................................................... 115
Configuration: System ........................................................................................................................ 118
Configuration: Port ............................................................................................................................. 123
Configuration: VLAN .......................................................................................................................... 136
Configuration: MAC Table ................................................................................................................ 147
Configuration: Link Aggregation ...................................................................................................... 151
Configuration: Loop Guard ............................................................................................................... 157
Configuration: Mirror .......................................................................................................................... 160
Configuration: Time Range Group ................................................................................................... 163
Configuration: Multicast .................................................................................................................... 168
Configuration: Spanning Tree ........................................................................................................... 176
Configuration: LLDP ............................................................................................................................ 185
Configuration: QoS ............................................................................................................................. 197
Configuration: Security ...................................................................................................................... 206
Configuration: AAA ............................................................................................................................ 215
Configuration: Management ............................................................................................................ 220
Maintenance ...................................................................................................................................... 237
Troubleshooting .................................................................................................................................. 249

Table of Contents
GS1900 Series User’s Guide
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Table of Contents
Document Conventions ......................................................................................................................3
Contents Overview .............................................................................................................................4
Table of Contents.................................................................................................................................5
Part I: User’s Guide..........................................................................................16
Chapter 1
Getting to Know Your Switch ............................................................................................................17
1.1 Introduction ..................................................................................................................................... 17
1.2 Example Applications .................................................................................................................... 18
1.2.1 PoE Example Application ..................................................................................................... 18
1.2.2 Backbone Example Application ......................................................................................... 18
1.2.3 Bridging or Fiber-optic Uplink Example Application .......................................................... 19
1.2.4 Gigabit Ethernet to the Desktop ......................................................................................... 20
1.2.5 IEEE 802.1Q VLAN Application Example ............................................................................. 20
1.2.6 IPv6 Support ........................................................................................................................... 21
1.3 Ways to Manage the Switch ......................................................................................................... 21
1.4 Good Habits for Managing the Switch ........................................................................................21
Chapter 2
Hardware Installation and Connection ...........................................................................................23
2.1 Safety Precautions .......................................................................................................................... 23
2.2 Installation Scenarios ...................................................................................................................... 23
2.3 Desktop Installation Procedure ..................................................................................................... 24
2.4 Wall Mounting ................................................................................................................................. 25
2.4.1 Wall-mounted Installation Requirement ............................................................................. 25
2.5 Rack Mounting ................................................................................................................................ 26
2.5.1 Rack-mounted Installation Requirement ........................................................................... 26
2.5.2 Attaching the Mounting Brackets to the Switch ............................................................... 27
2.5.3 Mounting the Switch on a Rack .......................................................................................... 27
Chapter 3
Hardware Overview...........................................................................................................................30
3.1 Front Panel Connections ............................................................................................................... 30
3.1.1 Ethernet Ports ......................................................................................................................... 32
3.1.2 SFP Slots .................................................................................................................................. 32

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3.1.3 PoE Mode (GS1900-48HP and GS1900-48HPv2 only) ........................................................ 34
3.2 Rear Panel ....................................................................................................................................... 35
3.2.1 Grounding .............................................................................................................................. 37
3.2.2 Power Connection ................................................................................................................ 39
3.3 LEDs .................................................................................................................................................. 40
3.4 Resetting the Switch (all models except GS1900-24EP / GS1900-24HPv2 / GS1900-48HPv2) 41
3.5 Resetting the Switch (GS1900-24 Revision B1 / GS1900-24EP / GS1900-24HPv2 / GS1900-48
Revision B1 / GS1900-48HPv2 only) ............................................................................................... 42
3.5.1 Restore Button ....................................................................................................................... 42
3.5.2 Reboot the Switch ................................................................................................................ 42
Chapter 4
ZON Utility ...........................................................................................................................................43
4.1 Zyxel One Network (ZON) Utility .................................................................................................... 43
4.1.1 Requirements ......................................................................................................................... 43
4.1.2 Run the ZON Utility ................................................................................................................. 44
Chapter 5
Web Configurator...............................................................................................................................48
5.1 Overview ......................................................................................................................................... 48
5.2 Access .............................................................................................................................................. 48
5.3 Navigating the Web Configurator ............................................................................................... 50
5.3.1 Title Bar ................................................................................................................................... 50
5.3.2 Navigation Panel .................................................................................................................. 51
Chapter 6
Getting Started...................................................................................................................................59
6.1 Overview ......................................................................................................................................... 59
6.1.1 What You Can Do in this Chapter ....................................................................................... 59
6.2 Getting Started ............................................................................................................................... 59
6.2.1 Wizard ..................................................................................................................................... 60
Part II: Technical Reference...........................................................................71
Chapter 7
Monitor: System..................................................................................................................................72
7.1 Overview ......................................................................................................................................... 72
7.1.1 What You Can Do in this Chapter ....................................................................................... 72
7.2 IP Settings ......................................................................................................................................... 72
7.2.1 IPv4 Settings ........................................................................................................................... 72
7.2.2 IPv6 Settings ........................................................................................................................... 73
7.3 Information ...................................................................................................................................... 73

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Chapter 8
Monitor: Port .......................................................................................................................................75
8.1 Overview ......................................................................................................................................... 75
8.1.1 What You Can Do in this Chapter ....................................................................................... 75
8.2 Port Settings ..................................................................................................................................... 75
8.2.1 Status ...................................................................................................................................... 75
8.2.2 Port Counters ......................................................................................................................... 76
8.2.3 Bandwidth Utilization ............................................................................................................ 78
8.3 PoE Settings ..................................................................................................................................... 79
8.4 Bandwidth Management .............................................................................................................. 81
8.4.1 Bandwidth Control ................................................................................................................ 81
8.5 Storm Control .................................................................................................................................. 82
Chapter 9
Monitor: VLAN.....................................................................................................................................84
9.1 Overview ......................................................................................................................................... 84
9.1.1 What You Can Do in this Chapter ....................................................................................... 84
9.2 VLAN Settings .................................................................................................................................. 84
9.2.1 VLAN ....................................................................................................................................... 84
9.2.2 Port .......................................................................................................................................... 85
9.2.3 VLAN Port ............................................................................................................................... 86
9.3 Guest VLAN ..................................................................................................................................... 87
9.4 Voice VLAN ..................................................................................................................................... 88
Chapter 10
Monitor: MAC Table...........................................................................................................................90
10.1 Overview ....................................................................................................................................... 90
10.1.1 What You Can Do in this Chapter ..................................................................................... 91
10.2 MAC Table ..................................................................................................................................... 91
Chapter 11
Monitor: Link Aggregation ................................................................................................................93
11.1 Overview ....................................................................................................................................... 93
11.1.1 What You Can Do in this Chapter ..................................................................................... 93
11.2 Link Aggregation .......................................................................................................................... 93
Chapter 12
Monitor: Loop Guard .........................................................................................................................95
12.1 Overview ....................................................................................................................................... 95
12.1.1 What You Can Do in this Chapter ..................................................................................... 96
12.2 Loop Guard ................................................................................................................................... 96

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Chapter 13
Monitor: Multicast...............................................................................................................................98
13.1 Overview ....................................................................................................................................... 98
13.1.1 What You Can Do in this Chapter ..................................................................................... 98
13.2 IGMP Settings ................................................................................................................................ 98
13.2.1 VLAN ..................................................................................................................................... 98
13.2.2 Statistics ................................................................................................................................ 99
13.2.3 Group ................................................................................................................................. 100
13.2.4 Router ................................................................................................................................. 101
Chapter 14
Monitor: Spanning Tree....................................................................................................................102
14.1 Overview ..................................................................................................................................... 102
14.1.1 What You Can Do in this Chapter ................................................................................... 102
14.2 Spanning Tree ............................................................................................................................. 102
14.2.1 CIST Settings ....................................................................................................................... 102
14.2.2 CIST Port .............................................................................................................................. 103
14.2.3 MST Settings ....................................................................................................................... 104
14.2.4 MST Port .............................................................................................................................. 105
14.2.5 STP Statistics ........................................................................................................................ 106
Chapter 15
Monitor: LLDP ....................................................................................................................................108
15.1 Overview ..................................................................................................................................... 108
15.1.1 What You Can Do in this Chapter ................................................................................... 108
15.2 LLDP Settings ............................................................................................................................... 108
15.2.1 Statistics Settings ................................................................................................................ 108
15.2.2 Remote Information .......................................................................................................... 109
15.2.3 Overloading ....................................................................................................................... 110
Chapter 16
Monitor: Security ..............................................................................................................................112
16.1 Overview ..................................................................................................................................... 112
16.1.1 What You Can Do in this Chapter ................................................................................... 112
16.2 Port Security ................................................................................................................................. 112
16.3 802.1X Security Settings .............................................................................................................. 113
16.3.1 Port Settings ....................................................................................................................... 113
16.3.2 Authenticated Hosts ......................................................................................................... 114
Chapter 17
Monitor: Management ....................................................................................................................115
17.1 Overview ..................................................................................................................................... 115
17.1.1 What You Can Do in this Chapter ................................................................................... 115

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17.2 Syslog ........................................................................................................................................... 115
17.3 Error Disable ................................................................................................................................. 116
Chapter 18
Configuration: System .....................................................................................................................118
18.1 Overview ..................................................................................................................................... 118
18.1.1 What You Can Do in this Chapter ................................................................................... 118
18.2 IP Settings ..................................................................................................................................... 118
18.2.1 IPv4 Settings ....................................................................................................................... 118
18.2.2 IPv6 Settings ....................................................................................................................... 119
18.3 Time .............................................................................................................................................. 120
18.3.1 System Time Settings ......................................................................................................... 120
18.3.2 SNTP Server Settings .......................................................................................................... 121
18.4 Information .................................................................................................................................. 121
18.4.1 System Information Settings .............................................................................................121
Chapter 19
Configuration: Port...........................................................................................................................123
19.1 Overview ..................................................................................................................................... 123
19.1.1 What You Can Do in this Chapter ................................................................................... 123
19.2 Port Settings ................................................................................................................................. 123
19.2.1 Port ...................................................................................................................................... 123
19.2.2 Port Edit .............................................................................................................................. 124
19.3 EEE Settings .................................................................................................................................. 125
19.3.1 EEE ....................................................................................................................................... 125
19.3.2 EEE Edit ............................................................................................................................... 126
19.4 PoE Settings ................................................................................................................................. 127
19.4.1 Global Settings .................................................................................................................. 127
19.4.2 Port Settings ....................................................................................................................... 127
19.4.3 PoE Edit ............................................................................................................................... 129
19.5 Bandwidth Management .......................................................................................................... 132
19.5.1 Bandwidth Control ............................................................................................................ 132
19.5.2 Port Rate Edit ..................................................................................................................... 133
19.6 Storm Control .............................................................................................................................. 133
19.6.1 Port Settings ....................................................................................................................... 134
19.6.2 Port Edit .............................................................................................................................. 134
Chapter 20
Configuration: VLAN........................................................................................................................136
20.1 Overview ..................................................................................................................................... 136
20.1.1 What You Can Do in this Chapter ................................................................................... 136
20.2 VLAN Settings .............................................................................................................................. 137
20.2.1 VLAN ................................................................................................................................... 137

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20.2.2 VLAN Add .......................................................................................................................... 137
20.2.3 Port Settings ....................................................................................................................... 138
20.2.4 Port Edit .............................................................................................................................. 139
20.2.5 VLAN Port ........................................................................................................................... 139
20.3 Guest VLAN ................................................................................................................................. 141
20.3.1 Global Settings .................................................................................................................. 141
20.3.2 Port Settings ....................................................................................................................... 142
20.3.3 Port Edit .............................................................................................................................. 142
20.4 Voice VLAN ................................................................................................................................. 143
20.4.1 Global Settings .................................................................................................................. 143
20.4.2 OUI Settings ........................................................................................................................ 144
20.4.3 OUI Add or Edit .................................................................................................................. 145
20.4.4 Port Settings ....................................................................................................................... 145
20.4.5 Port Edit .............................................................................................................................. 146
Chapter 21
Configuration: MAC Table...............................................................................................................147
21.1 Overview ..................................................................................................................................... 147
21.1.1 What You Can Do in this Chapter ................................................................................... 147
21.2 MAC Table ................................................................................................................................... 147
21.2.1 Static MAC ......................................................................................................................... 147
21.2.2 Static MAC Add ................................................................................................................ 148
21.2.3 Filtering MAC ..................................................................................................................... 148
21.2.4 Filtering MAC Add ............................................................................................................. 149
21.2.5 Dynamic Age .................................................................................................................... 149
Chapter 22
Configuration: Link Aggregation....................................................................................................151
22.1 Overview ..................................................................................................................................... 151
22.1.1 What You Can Do in this Chapter ................................................................................... 151
22.2 Link Aggregation ........................................................................................................................ 151
22.2.1 Global Settings .................................................................................................................. 151
22.2.2 LAG Management ............................................................................................................ 152
22.2.3 LAG Add ............................................................................................................................ 153
22.2.4 LAG Port ............................................................................................................................. 154
22.2.5 LAG Port Edit ...................................................................................................................... 154
22.2.6 LACP Port ........................................................................................................................... 155
22.2.7 LACP Port Edit .................................................................................................................... 156
Chapter 23
Configuration: Loop Guard.............................................................................................................157
23.1 Overview ..................................................................................................................................... 157
23.2 Loop Guard ................................................................................................................................. 157

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23.2.1 Global Settings .................................................................................................................. 157
23.2.2 Loop Guard Port ............................................................................................................... 158
23.2.3 Port Edit .............................................................................................................................. 158
Chapter 24
Configuration: Mirror........................................................................................................................160
24.1 Overview ..................................................................................................................................... 160
24.2 Mirror Settings .............................................................................................................................. 160
24.2.1 Mirror ................................................................................................................................... 160
Chapter 25
Configuration: Time Range Group .................................................................................................163
25.1 Overview ..................................................................................................................................... 163
25.1.1 What You Can Do ............................................................................................................. 163
25.2 Time Range Group ..................................................................................................................... 163
25.2.1 Time Range Group Settings ............................................................................................. 163
25.2.2 Time Range Add ............................................................................................................... 164
25.2.3 Time Range Edit ................................................................................................................. 165
Chapter 26
Configuration: Multicast..................................................................................................................168
26.1 Overview ..................................................................................................................................... 168
26.2 IGMP Settings .............................................................................................................................. 168
26.2.1 Global Settings .................................................................................................................. 168
26.2.2 VLAN Settings ..................................................................................................................... 169
26.2.3 Edit IGMP ............................................................................................................................ 170
26.2.4 Router Port ......................................................................................................................... 171
26.2.5 Add or Edit Router Port ..................................................................................................... 171
26.2.6 Profile Settings .................................................................................................................... 172
26.2.7 Add or Edit Profile .............................................................................................................. 173
26.2.8 Throttling Settings .............................................................................................................. 173
26.2.9 Edit Throttling ..................................................................................................................... 174
Chapter 27
Configuration: Spanning Tree.........................................................................................................176
27.1 Overview ..................................................................................................................................... 176
27.2 Spanning Tree ............................................................................................................................. 176
27.2.1 Global Settings .................................................................................................................. 176
27.2.2 STP Port ............................................................................................................................... 177
27.2.3 STP Port Edit ........................................................................................................................ 178
27.2.4 CIST Settings ....................................................................................................................... 179
27.2.5 CIST Port .............................................................................................................................. 180
27.2.6 CIST Port Edit ...................................................................................................................... 180

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27.2.7 MST Settings ....................................................................................................................... 181
27.2.8 Add or Edit MST ................................................................................................................. 182
27.2.9 MST Port Settings ................................................................................................................ 182
27.2.10 MST Port Edit ..................................................................................................................... 183
Chapter 28
Configuration: LLDP..........................................................................................................................185
28.1 Overview ..................................................................................................................................... 185
28.2 LLDP Settings ............................................................................................................................... 185
28.2.1 Global Settings .................................................................................................................. 185
28.2.2 Port Settings ....................................................................................................................... 186
28.2.3 Port Edit .............................................................................................................................. 187
28.2.4 Local Information Settings ................................................................................................ 188
28.2.5 Local Information Edit ....................................................................................................... 190
28.2.6 MED Network Policy .......................................................................................................... 193
28.2.7 MED Network Policy Add or Edit ..................................................................................... 193
28.2.8 MED Port ............................................................................................................................. 195
28.2.9 MED Port Edit ..................................................................................................................... 195
Chapter 29
Configuration: QoS ..........................................................................................................................197
29.1 Overview ..................................................................................................................................... 197
29.2 General Settings ......................................................................................................................... 197
29.2.1 Port Settings ....................................................................................................................... 197
29.2.2 Port Edit .............................................................................................................................. 198
29.2.3 Queue Settings .................................................................................................................. 199
29.2.4 CoS Mapping .................................................................................................................... 200
29.2.5 DSCP Mapping .................................................................................................................. 201
29.2.6 IP Precedence Mapping .................................................................................................. 202
29.3 Trust Mode ................................................................................................................................... 203
29.3.1 Global Settings .................................................................................................................. 203
29.3.2 Port Settings ....................................................................................................................... 203
29.3.3 Trust Mode Edit .................................................................................................................. 204
Chapter 30
Configuration: Security....................................................................................................................206
30.1 Overview ..................................................................................................................................... 206
30.2 Port Security ................................................................................................................................. 206
30.2.1 Global Settings .................................................................................................................. 206
30.2.2 Port Settings ....................................................................................................................... 206
30.2.3 Port Edit .............................................................................................................................. 207
30.3 Port Isolation ................................................................................................................................ 208
30.3.1 Port Isolation Settings ........................................................................................................ 208

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30.3.2 Port Isolation Edit ............................................................................................................... 209
30.4 802.1X Settings ............................................................................................................................ 209
30.4.1 Global Settings .................................................................................................................. 209
30.4.2 Port Settings ....................................................................................................................... 210
30.4.3 Port Edit .............................................................................................................................. 211
30.5 DoS Settings ................................................................................................................................. 212
30.5.1 Global Settings .................................................................................................................. 212
30.5.2 Port Settings ....................................................................................................................... 212
30.5.3 Port Edit .............................................................................................................................. 213
30.5.4 DoS Attack Types .............................................................................................................. 214
Chapter 31
Configuration: AAA..........................................................................................................................215
31.1 Overview ..................................................................................................................................... 215
31.2 Auth Method ............................................................................................................................... 215
31.2.1 Auth Method Settings ....................................................................................................... 215
31.2.2 Auth Method Add or Edit .................................................................................................215
31.3 RADIUS Settings ........................................................................................................................... 216
31.3.1 RADIUS ................................................................................................................................ 216
31.3.2 RADIUS Add or Edit ............................................................................................................ 217
31.4 TACACS+ Settings ....................................................................................................................... 218
31.4.1 TACACS+ ............................................................................................................................ 218
31.4.2 TACACS+ Add or Edit ....................................................................................................... 218
Chapter 32
Configuration: Management..........................................................................................................220
32.1 Overview ..................................................................................................................................... 220
32.2 Syslog Settings ............................................................................................................................. 220
32.2.1 Global Settings .................................................................................................................. 220
32.2.2 Local Settings ..................................................................................................................... 220
32.2.3 Local Add or Edit ............................................................................................................... 221
32.2.4 Remote Settings ................................................................................................................ 222
32.2.5 Remote Add or Edit .......................................................................................................... 222
32.3 SNMP Settings .............................................................................................................................. 223
32.3.1 Global Settings .................................................................................................................. 223
32.3.2 Community Settings .......................................................................................................... 223
32.3.3 Community Add or Edit .................................................................................................... 224
32.3.4 Group Settings ................................................................................................................... 224
32.3.5 Group Add or Edit ............................................................................................................. 225
32.3.6 User Settings ....................................................................................................................... 226
32.3.7 User Add or Edit ................................................................................................................. 227
32.3.8 Trap Settings ....................................................................................................................... 227
32.3.9 Trap Destination ................................................................................................................ 228

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32.3.10 Trap Destination Add or Edit .......................................................................................... 229
32.4 Error Disable ................................................................................................................................. 230
32.4.1 Error Disable Settings ......................................................................................................... 230
32.5 HTTP/HTTPS ................................................................................................................................... 230
32.5.1 HTTP Settings ...................................................................................................................... 230
32.5.2 HTTPS Settings ..................................................................................................................... 231
32.6 TELNET/SSH ................................................................................................................................... 232
32.6.1 TELNET Settings ................................................................................................................... 232
32.6.2 SSH Settings ........................................................................................................................ 232
32.7 Users Settings ............................................................................................................................... 233
32.7.1 Users .................................................................................................................................... 233
32.7.2 Users Add or Edit ............................................................................................................... 233
32.8 Remote Access Control ............................................................................................................. 234
32.8.1 Global Settings .................................................................................................................. 234
32.8.2 Profile Add or Edit .............................................................................................................. 235
Chapter 33
Maintenance....................................................................................................................................237
33.1 Firmware Upgrade ...................................................................................................................... 237
33.1.1 Overview ............................................................................................................................ 237
33.1.2 Upgrade the firmware from a file on a server ............................................................... 237
33.1.3 Upgrade the firmware from a file on your computer ................................................... 238
33.2 Firmware Management ............................................................................................................. 238
33.2.1 Overview ............................................................................................................................ 238
33.2.2 Select the Active Image .................................................................................................. 239
33.3 Backup a Configuration File ...................................................................................................... 240
33.3.1 Overview ............................................................................................................................ 240
33.3.2 Back up configuration or log files to a server ................................................................ 241
33.3.3 Back up configuration or log files to your computer .................................................... 241
33.4 Restore a Configuration File ...................................................................................................... 241
33.4.1 Overview ............................................................................................................................ 241
33.4.2 Restore the configuration from a file on a server .......................................................... 242
33.4.3 Restore the configuration from a file on your computer ............................................. 242
33.5 Manage Configuration Files ...................................................................................................... 242
33.5.1 Overview ............................................................................................................................ 242
33.6 Reset to Factory Defaults ........................................................................................................... 243
33.6.1 Overview ............................................................................................................................ 243
33.6.2 Reset the Switch to Factory Defaults .............................................................................. 243
33.7 Network Diagnostics ................................................................................................................... 244
33.7.1 Port Test .............................................................................................................................. 244
33.7.2 IPv4 Ping Test ...................................................................................................................... 244
33.7.3 IPv6 Ping Test ...................................................................................................................... 246
33.7.4 Trace Route ....................................................................................................................... 247

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33.8 Reboot ......................................................................................................................................... 248
33.8.1 Overview ............................................................................................................................ 248
33.8.2 Reboot the Switch ............................................................................................................ 248
Chapter 34
Troubleshooting................................................................................................................................249
34.1 Power, Hardware Connections, and LEDs ............................................................................... 249
34.2 Switch Access and Login ........................................................................................................... 250
34.3 Switch Configuration .................................................................................................................. 251
Appendix A Customer Support ..................................................................................................... 252
Appendix B Legal Information....................................................................................................... 257
Index.................................................................................................................................................264

16
PART I
User’s Guide

GS1900 Series User’s Guide
17
CHAPTER 1
Getting to Know Your Switch
This chapter introduces the main features and applications of the Switch.
1.1 Introduction
The GS1900 series is a new generation Gigabit Ethernet (GbE) Web-Managed Switch.
This User’s Guide covers the following models:
See the datasheet for a full list of firmware features available on the Switch.
Table 1 GS1900 Series Comparison Table
MODEL
GS1900-8/
GS1900-8
Revision B1
GS1900-
8HP/
GS1900-
8HP
Revision B2
GS1900-
10HP/
GS1900-
10HP
Revision
B1
GS1900-
16/
GS1900-16
Revision B1
GS1900-
24E/
GS1900-24E
Revision B1
GS1900-
24EP GS1900-24/ GS1900-24
Revision B1
GS1900-
24HP/
GS1900-
24HPv2
GS1900-48/
GS1900-48
Revision B1
GS1900-
48HP/
GS1900-
48HPv2
100/1000 Mbps
Port 8NoNo16241224No4824
100/1000 Mbps
PoE Port No 8 8 No No 12 No 24 No 24
1G SFP Slots
Fiber-optic No No 2 No No No 2 2 2 2
Desktop Yes Yes Yes Yes Yes No No No No No
Wall-mount Yes Yes Yes Yes Yes No No No No No
Rack-mount No No No Yes Yes Yes Yes Yes Yes Yes
Power ON/OFF
Switch
v1 – Yes v1 – Yes v1 – Yes No No No No No No No
B1 – No B2 – No B1 – No
RESET Button v1 – Yes v1 – Yes v1 – Yes v1 – Yes v1 – Yes
Yes Yes Yes Yes Yes
B1 –
rename
to
RESTORE
B2 –
rename
to
RESTORE
B1 –
rename
to
RESTORE
B1 –
rename
to
RESTORE
B1 –
rename
to
RESTORE
RESTORE Button v1 – No v1 – No v1 – No v1 – No v1 – No Yes v1 – No v1 – No v1 – No v1 – No
B1 – Yes B2 – Yes B1 – Yes B1 – Yes B1 – Yes B1 – Yes v2 – Yes B1 – Yes v2 – Yes
Kensington
Lock No No No No No Yes v1 – No v1 – No v1 – No v1 – No
B1 – Yes v2 – Yes B1 – Yes v2 – Yes
Power
DC Jack-
type
v1 – DC
Pin-type v1 – DC Pin-type
AC Input AC Input AC
Input AC Input AC Input AC Input AC Input
B2 – DC
Jack-
type
B1 – DC
Jack-
type

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1.2 Example Applications
This section shows a few examples of using the Switch in various network environments. Note that the
Switch in the figure is just an example Switch and not your actual Switch.
1.2.1 PoE Example Application
The Switch can supply PoE (Power over Ethernet) to Powered Devices (PDs) such as an IP camera, a
wireless router, an IP telephone and a general outdoor router that are not within reach of a power
outlet.
Figure 1 PoE Example Application
1.2.2 Backbone Example Application
The Switch is an ideal solution for small networks where rapid growth can be expected in the near future.
The Switch can be used standalone for a group of heavy traffic users. You can connect computers and
servers directly to the Switch’s port or connect other switches to the Switch.
All computers can share high-speed applications on the server. To expand the network, simply add
more networking devices such as switches, routers, computers, print servers, and so on.

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Figure 2 Backbone Example Application
1.2.3 Bridging or Fiber-optic Uplink Example Application
The Switch connects different company departments (RD and Sales) to the corporate backbone. It can
alleviate bandwidth contention and eliminate server and network bottlenecks. All users that need high
bandwidth can connect to high-speed department servers through the Switch. You can provide a
super-fast uplink connection by using a Gigabit Ethernet or SFP port on the Switch.
Figure 3 Bridging or Fiber-optic Uplink Example Application

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1.2.4 Gigabit Ethernet to the Desktop
The Switch is an ideal solution for small networks which demand high bandwidth for a group of heavy
traffic users. You can connect computers and servers directly to the Switch’s port or connect other
switches to the Switch.
In this example, all computers can share high-speed applications on the server and access the Internet.
To expand the network, simply add more networking devices such as switches, routers, computers, print
servers and so on.
Figure 4 Gigabit to the Desktop
1.2.5 IEEE 802.1Q VLAN Application Example
A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into multiple logical
networks. Stations on a logical network belong to one or more groups. With VLAN, a station cannot
directly talk to or hear from stations that are not in the same groups unless such traffic first goes through
a router.
For more information on VLANs, refer to Chapter 9 on page 84.
1.2.5.1 Tag-based VLAN Example
Ports in the same VLAN group share the same frame broadcast domain, therefore increasing network
performance by reducing broadcast traffic. VLAN groups can be modified at any time by adding,
moving or changing ports without any re-cabling.
Shared resources such as a server can be used by all ports in the same VLAN as the server. In the
following figure only ports that need access to the server need to be part of VLAN 1. Ports can belong to
other VLAN groups too.