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GS1920-8HPV2
User Manual
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Zyxel GS1920-8HPV2, GS1920-48V2, GS1920-48HPV2, GS1920-24HPV2, GS1920-24V2 User Manual

Default Login Details
User’s Guide

GS1920v2 Series

8/24/48-port GbE Smart Managed Switch
LAN IP Address http://DHCP-assigned
User Name admin
Password 1234
Version 4.50 Edition 2, 08/2018
Copyright © 2018 Zyxel Communications Corporation
IMPORTANT! READ CAREFULLY BEFORE USE. KEEP THIS GUIDE FOR FUTURE REFERENCE.
This is a User’s Guide for a series of products. Not all products support all firmware features. 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.
Related Documentation
•Quick Start Guide The Quick Start Guide shows how to connect the Switch.
• Online Help Click the help link for a description of the fields in the Switch menus.
• Nebula Switch User’s Guide Go to support.zyxel.com to get this User’s Guide on how to configure the Switch using Nebula.
•More Information Go to https://businessforum.zyxel.com for product discussions.
Go to support.zyxel.com to find other information on the Switch
.
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2

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, Basic Setting >
Swtich Setup > Select VLAN Typemeans you first click Basic Setting in the navigation panel, then the Switch Setup sub menu and finally the Select VLAN Type 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 Router Wireless Router / Access Point
Generic Switch Smart TV Desktop
Laptop IP Camera Printer
Server
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Contents Overview

Contents Overview
User’s Guide ......................................................................................................................................19
Getting to Know Your Switch .............................................................................................................. 20
Hardware Installation and Connection ............................................................................................. 28
Hardware Panels .................................................................................................................................. 35
Technical Reference ........................................................................................................................43
The Web Configurator ......................................................................................................................... 44
Initial Setup Example ............................................................................................................................ 56
Tutorials .................................................................................................................................................. 60
Status and ZON ..................................................................................................................................... 68
Basic Setting .......................................................................................................................................... 77
VLAN .................................................................................................................................................... 107
Static MAC Forwarding ...................................................................................................................... 127
Static Multicast Forwarding ............................................................................................................... 129
Filtering ................................................................................................................................................. 133
Spanning Tree Protocol ...................................................................................................................... 135
Bandwidth Control ............................................................................................................................. 156
Broadcast Storm Control ................................................................................................................... 158
Mirroring ............................................................................................................................................... 160
Link Aggregation ................................................................................................................................ 162
Port Authentication ............................................................................................................................ 170
Port Security ......................................................................................................................................... 180
Time Range ......................................................................................................................................... 183
Classifier ............................................................................................................................................... 185
Policy Rule ........................................................................................................................................... 194
Queuing Method ................................................................................................................................ 198
Multicast .............................................................................................................................................. 201
AAA ...................................................................................................................................................... 225
IP Source Guard .................................................................................................................................. 235
Loop Guard ......................................................................................................................................... 258
Layer 2 Protocol Tunneling ................................................................................................................ 262
PPPoE ................................................................................................................................................... 266
Error Disable ......................................................................................................................................... 274
Private VLAN ....................................................................................................................................... 281
Green Ethernet ................................................................................................................................... 283
Link Layer Discovery Protocol (LLDP) ................................................................................................ 285
OAM ..................................................................................................................................................... 308
Static Route ......................................................................................................................................... 316
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Contents Overview
Differentiated Services ....................................................................................................................... 319
DHCP .................................................................................................................................................... 323
ARP Setup ............................................................................................................................................ 335
Maintenance ...................................................................................................................................... 339
Access Control .................................................................................................................................... 348
Diagnostic ........................................................................................................................................... 368
System Log .......................................................................................................................................... 371
Syslog Setup ........................................................................................................................................ 372
Cluster Management ......................................................................................................................... 375
MAC Table ........................................................................................................................................... 381
ARP Table ............................................................................................................................................ 384
Path MTU Table ................................................................................................................................... 386
Configure Clone ................................................................................................................................. 387
IPv6 Neighbor Table ........................................................................................................................... 390
Port Status ............................................................................................................................................ 392
Troubleshooting .................................................................................................................................. 398
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Table of Contents

Table of Contents
Document Conventions .................................................................. ....................................................3
Contents Overview..............................................................................................................................4
Table of Contents.................................................................................................................................6
Part I: User’s Guide.......................................................................................... 19
Chapter 1
Getting to Know Your Switch ............................................................................................................20
1.1 Introduction ..................................................................................................................................... 20
1.1.1 Management Modes ........................................................................................................... 20
1.1.2 Mode Changing ................................................................................................................... 21
1.1.3 ZON Utility ............................................................................................................................... 23
1.1.4 PoE .......................................................................................................................................... 23
1.2 Applications .................................................................................................................................... 23
1.2.1 Backbone Application ......................................................................................................... 24
1.2.2 Bridging Example .................................................................................................................. 24
1.2.3 High Performance Switching Example ............................................................................... 25
1.2.4 IEEE 802.1Q VLAN Application Examples ........................................................................... 25
1.3 Ways to Manage the Switch ......................................................................................................... 26
1.4 Good Habits for Managing the Switch ........................................................................................27
Chapter 2
Hardware Installation and Connection ...........................................................................................28
2.1 Installation Scenarios ...................................................................................................................... 28
2.2 Desktop Installation Procedure .................................................................................................... 28
2.3 Desk Mounting (GS1920-8HPv2 Only) ........................................................................................... 29
2.3.1 Installation Requirements ..................................................................................................... 29
2.3.2 Precautions ........................................................................................................................... 30
2.3.3 Attaching the Mounting Brackets to the Switch ............................................................... 30
2.3.4 Mounting the Switch under a Table ................................................................................... 30
2.4 Wall Mounting (GS1920-8HPv2 Only) ............................................................................................ 31
2.4.1 Installation Requirements ..................................................................................................... 31
2.5 Rack Mounting ............................................................................................................................... 32
2.5.1 Installation Requirements ..................................................................................................... 33
2.5.2 Precautions ........................................................................................................................... 33
2.5.3 Attaching the Mounting Brackets to the Switch ............................................................... 33
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2.5.4 Mounting the Switch on a Rack .......................................................................................... 33
Chapter 3
Hardware Panels................................................................................................................................35
3.1 Front Panel ...................................................................................................................................... 35
3.1.1 Gigabit Ethernet Ports .......................................................................................................... 35
3.1.2 PoE (GS1920-8HPv2 & GS1920-24HPv2 & GS1920-48HPv2) ............................................... 36
3.1.3 SFP Slots .................................................................................................................................. 36
3.1.4 PoE Mode (only available for GS1920-48HPv2) ................................................................. 38
3.2 Rear Panel ....................................................................................................................................... 38
3.2.1 Grounding .............................................................................................................................. 39
3.2.2 Power Connector ................................................................................................................. 40
3.3 LEDs ................................................................................................................................................ 40
Part II: Technical Reference........................................................................... 43
Chapter 4
The Web Configurator........................................................................................................................44
4.1 Overview ......................................................................................................................................... 44
4.2 System Login ................................................................................................................................... 44
4.3 The Status Screen .......................................................................................................................... 48
4.3.1 Change Your Password ....................................................................................................... 52
4.4 Saving Your Configuration ............................................................................................................. 53
4.5 Switch Lockout ............................................................................................................................... 53
4.6 Resetting the Switch ...................................................................................................................... 54
4.6.1 The Restore Button ................................................................................................................ 54
4.6.2 Restore Custom Default ....................................................................................................... 54
4.6.3 Reboot the Switch ................................................................................................................ 54
4.7 Logging Out of the Web Configurator .......................................................................................54
4.8 Help ................................................................................................................................................. 55
Chapter 5
Initial Setup Example.........................................................................................................................56
5.1 Overview ......................................................................................................................................... 56
5.1.1 Creating a VLAN ................................................................................................................... 56
5.1.2 Setting Port VID ...................................................................................................................... 57
5.1.3 Configuring Switch Management IP Address .................................................................... 58
Chapter 6
Tutorials...............................................................................................................................................60
6.1 Overview ......................................................................................................................................... 60
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6.2 How to Use DHCPv4 Snooping on the Switch ............................................................................. 60
6.3 How to Use DHCPv4 Relay on the Switch .................................................................................... 63
6.3.1 DHCP Relay Tutorial Introduction ........................................................................................ 64
6.3.2 Creating a VLAN ................................................................................................................... 64
6.3.3 Configuring DHCPv4 Relay .................................................................................................. 66
6.3.4 Troubleshooting ..................................................................................................................... 67
Chapter 7
Status and ZON...................................................................................................................................68
7.1 Overview ......................................................................................................................................... 68
7.1.1 What You Can Do ................................................................................................................. 68
7.2 Status ................................................................................................................................................ 68
7.3 Zyxel One Network (ZON) Utility .................................................................................................... 70
7.3.1 Requirements ......................................................................................................................... 70
7.3.2 Run the ZON Utility ................................................................................................................. 71
7.4 ZON Neighbor Management Screen .......................................................................................... 75
Chapter 8
Basic Setting.......................................................................................................................................77
8.1 Overview ......................................................................................................................................... 77
8.1.1 What You Can Do ................................................................................................................. 77
8.2 System Information ...................................................................................................................... 77
8.3 General Setup ............................................................................................................................... 79
8.4 Introduction to VLANs ................................................................................................................... 81
8.5 Switch Setup ................................................................................................................................... 82
8.6 IP Setup ........................................................................................................................................... 83
8.6.1 Management IP Addresses ..................................................................................................83
8.7 Port Setup ....................................................................................................................................... 85
8.8 PoE Status ....................................................................................................................................... 87
8.8.1 The PoE Status Screen ........................................................................................................... 88
8.8.2 PoE Time Range Status ......................................................................................................... 89
8.8.3 PoE Setup .............................................................................................................................. 90
8.9 Interface Setup ............................................................................................................................... 92
8.10 IPv6 ................................................................................................................................................. 93
8.10.1 IPv6 Interface Status ........................................................................................................... 94
8.10.2 IPv6 Configuration .............................................................................................................. 96
8.10.3 IPv6 Global Setup ................................................................................................................ 97
8.10.4 IPv6 Interface Setup ............................................................................................................ 98
8.10.5 IPv6 Link-Local Address Setup ............................................................................................ 98
8.10.6 IPv6 Global Address Setup ................................................................................................. 99
8.10.7 IPv6 Neighbor Discovery Setup ....................................................................................... 100
8.10.8 IPv6 Neighbor Setup ......................................................................................................... 101
8.10.9 DHCPv6 Client Setup ........................................................................................................ 102
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8.11 DNS ............................................................................................................................................... 104
8.12 Cloud Management .................................................................................................................. 104
8.12.1 Nebula Center Control Discovery ................................................................................... 105
8.12.2 Nebula Switch Registration ..............................................................................................105
Chapter 9
VLAN..................................................................................................................................................107
9.1 Overview ....................................................................................................................................... 107
9.1.1 What You Can Do ............................................................................................................... 107
9.1.2 What You Need to Know ................................................................................................... 107
9.2 VLAN Status .................................................................................................................................. 110
9.2.1 VLAN Details ....................................................................................................................... 111
9.3 VLAN Configuration .................................................................................................................... 112
9.4 Configure a Static VLAN ............................................................................................................ 112
9.5 Configure VLAN Port Setting ...................................................................................................... 114
9.6 Subnet Based VLANs ................................................................................................................... 115
9.6.1 Configuring Subnet Based VLAN ..................................................................................... 116
9.7 Protocol Based VLANs ................................................................................................................. 118
9.7.1 Configuring Protocol Based VLAN .................................................................................... 119
9.8 Voice VLAN ................................................................................................................................... 120
9.9 MAC Based VLAN ......................................................................................................................... 121
9.10 Port-Based VLAN Setup ............................................................................................................ 122
9.10.1 Configure a Port-Based VLAN ......................................................................................... 123
9.11 Technical Reference .................................................................................................................. 125
9.11.1 Create an IP-based VLAN Example ................................................................................ 125
Chapter 10
Static MAC Forwarding....................................................................................................................127
10.1 Overview ..................................................................................................................................... 127
10.1.1 What You Can Do ............................................................................................................. 127
10.2 Configuring Static MAC Forwarding ....................................................................................... 127
Chapter 11
Static Multicast Forwarding.............................................................................................................129
11.1 Static Multicast Forward Setup Overview ............................................................................... 129
11.1.1 What You Can Do ............................................................................................................. 129
11.1.2 What You Need To Know ................................................................................................. 129
11.2 Configuring Static Multicast Forwarding .................................................................................. 130
Chapter 12
Filtering..............................................................................................................................................133
12.1 Filtering Overview ...................................................................................................................... 133
12.1.1 What You Can Do ............................................................................................................. 133
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12.2 Configure a Filtering Rule .......................................................................................................... 133
Chapter 13
Spanning Tree Protocol ...................................................................................................................135
13.1 Spanning Tree Protocol Overview ........................................................................................... 135
13.1.1 What You Can Do ............................................................................................................. 135
13.1.2 What You Need to Know ................................................................................................. 135
13.2 Spanning Tree Protocol Status Screen ..................................................................................... 138
13.3 Spanning Tree Configuration ................................................................................................... 138
13.4 Configure Rapid Spanning Tree Protocol ............................................................................. 139
13.5 Rapid Spanning Tree Protocol Status ....................................................................................141
13.6 Configure Multiple Rapid Spanning Tree Protocol .............................................................. 142
13.7 Multiple Rapid Spanning Tree Protocol Status ....................................................................... 144
13.8 Configure Multiple Spanning Tree Protocol ......................................................................... 146
13.8.1 Multiple Spanning Tree Protocol Port Configuration .................................................... 149
13.9 Multiple Spanning Tree Protocol Status ...................................................................................150
13.10 Technical Reference ................................................................................................................ 153
13.10.1 MSTP Network Example .................................................................................................. 153
13.10.2 MST Region ....................................................................................................................... 154
13.10.3 MST Instance .................................................................................................................... 154
13.10.4 Common and Internal Spanning Tree (CIST) ............................................................... 154
Chapter 14
Bandwidth Control...........................................................................................................................156
14.1 Bandwidth Control Overview ................................................................................................... 156
14.1.1 What You Can Do ............................................................................................................. 156
14.2 Bandwidth Control Setup .......................................................................................................... 156
Chapter 15
Broadcast Storm Control .................................................................................................................158
15.1 Broadcast Storm Control Overview .........................................................................................158
15.1.1 What You Can Do ............................................................................................................. 158
15.2 Broadcast Storm Control Setup ................................................................................................ 158
Chapter 16
Mirroring............................................................................................................................................160
16.1 Mirroring Overview .................................................................................................................... 160
16.1.1 What You Can Do ............................................................................................................. 160
16.2 Port Mirroring Setup .................................................................................................................... 160
Chapter 17
Link Aggregation .................................... .... .... ... ............................................ .... .... ..........................162
17.1 Link Aggregation Overview ...................................................................................................... 162
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17.1.1 What You Can Do ............................................................................................................. 162
17.1.2 What You Need to Know ................................................................................................. 162
17.2 Link Aggregation Status ............................................................................................................. 163
17.3 Link Aggregation Setting .......................................................................................................... 164
17.3.1 Link Aggregation Control Protocol .............................................................................. 166
17.4 Technical Reference .................................................................................................................. 168
17.4.1 Static Trunking Example ................................................................................................... 168
Chapter 18
Port Authentication..........................................................................................................................170
18.1 Port Authentication Overview ................................................................................................. 170
18.1.1 What You Can Do ............................................................................................................. 170
18.1.2 What You Need to Know ................................................................................................. 170
18.1.3 MAC Authentication ........................................................................................................ 171
18.2 Port Authentication Configuration ........................................................................................... 171
18.3 Activate IEEE 802.1x Security ................................................................................................... 172
18.3.1 Guest VLAN ....................................................................................................................... 173
18.4 Activate MAC Authentication ................................................................................................. 175
18.5 Technical Reference .................................................................................................................. 177
18.5.1 IEEE 802.1x .......................................................................................................................... 177
18.5.2 RADIUS ................................................................................................................................ 177
18.5.3 EAP (Extensible Authentication Protocol) Authentication ........................................... 178
Chapter 19
Port Security......................................................................................................................................180
19.1 Port Security Overview .............................................................................................................. 180
19.1.1 What You Can Do ............................................................................................................. 180
19.2 Port Security Setup ...................................................................................................................... 180
Chapter 20
Time Range.......................................................................................................................................183
20.1 Time Range Overview ............................................................................................................... 183
20.1.1 What You Can Do ............................................................................................................. 183
20.2 Configuring Time Range ............................................................................................................ 183
Chapter 21
Classifier............................................................................................................................................185
21.1 Classifier Overview ..................................................................................................................... 185
21.1.1 What You Can Do ............................................................................................................. 185
21.1.2 What You Need to Know ................................................................................................. 185
21.2 Classifier Status ............................................................................................................................ 186
21.3 Classifier Configuration ............................................................................................................. 186
21.3.1 Viewing and Editing Classifier Configuration Summary ............................................... 190
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21.4 Classifier Global Setting ............................................................................................................. 191
21.5 Classifier Example ....................................................................................................................... 192
Chapter 22
Policy Rule ........................................................................................................................................194
22.1 Policy Rules Overview ............................................................................................................... 194
22.1.1 What You Can Do ............................................................................................................. 194
22.2 Configuring Policy Rules ............................................................................................................ 194
22.3 Policy Example ............................................................................................................................ 197
Chapter 23
Queuing Method..............................................................................................................................198
23.1 Queuing Method Overview ..................................................................................................... 198
23.1.1 What You Can Do ............................................................................................................. 198
23.1.2 What You Need to Know ................................................................................................. 198
23.2 Configuring Queuing ................................................................................................................. 199
Chapter 24
Multicast............................................................................................................................................201
24.1 Multicast Overview ..................................................................................................................... 201
24.1.1 What You Can Do ............................................................................................................. 201
24.1.2 What You Need to Know ................................................................................................. 201
24.2 Multicast Setup ........................................................................................................................... 205
24.3 IPv4 Multicast Status .................................................................................................................. 205
24.3.1 IGMP Snooping ................................................................................................................. 206
24.3.2 IGMP Snooping VLAN ...................................................................................................... 208
24.3.3 IGMP Filtering Profile ........................................................................................................ 210
24.4 IPv6 Multicast Status .................................................................................................................. 211
24.4.1 MLD Snooping-proxy ........................................................................................................ 211
24.4.2 MLD Snooping-proxy VLAN .............................................................................................. 212
24.4.3 MLD Snooping-proxy VLAN Port Role Setting ................................................................. 214
24.4.4 MLD Snooping-proxy Filtering .......................................................................................... 215
24.4.5 MLD Snooping-proxy Filtering Profile ............................................................................... 217
24.5 General MVR Configuration ..................................................................................................... 218
24.5.1 MVR Group Configuration .............................................................................................. 220
24.5.2 MVR Configuration Example ........................................................................................... 222
Chapter 25
AAA...................................................................................................................................................225
25.1 AAA Overview ........................................................................................................................... 225
25.1.1 What You Can Do ............................................................................................................. 225
25.1.2 What You Need to Know ................................................................................................. 225
25.2 AAA Screens ............................................................................................................................... 226
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25.3 RADIUS Server Setup .................................................................................................................. 226
25.4 TACACS+ Server Setup .............................................................................................................. 228
25.5 AAA Setup .................................................................................................................................. 230
25.6 Technical Reference .................................................................................................................. 232
25.6.1 Vendor Specific Attribute ................................................................................................ 232
25.6.2 Supported RADIUS Attributes ........................................................................................... 233
25.6.3 Attributes Used for Authentication .................................................................................. 234
Chapter 26
IP Source Guard...............................................................................................................................235
26.1 IP Source Guard Overview ....................................................................................................... 235
26.1.1 What You Can Do ............................................................................................................. 235
26.1.2 What You Need to Know ................................................................................................. 236
26.2 IP Source Guard Screen ............................................................................................................ 236
26.3 IPv4 Source Guard Setup .......................................................................................................... 237
26.4 IPv4 Source Guard Static Binding ............................................................................................ 237
26.5 DHCP Snooping ......................................................................................................................... 239
26.6 DHCP Snooping Configure ....................................................................................................... 242
26.6.1 DHCP Snooping Port Configure ..................................................................................... 244
26.6.2 DHCP Snooping VLAN Configure ................................................................................... 245
26.6.3 DHCP Snooping VLAN Port Configure ............................................................................ 246
26.7 ARP Inspection Status ................................................................................................................ 248
26.8 ARP Inspection VLAN Status ...................................................................................................... 249
26.9 ARP Inspection Log Status ......................................................................................................... 249
26.10 ARP Inspection Configure ........................................................................................................ 251
26.10.1 ARP Inspection Port Configure ...................................................................................... 252
26.10.2 ARP Inspection VLAN Configure ................................................................................... 253
26.11 Technical Reference ................................................................................................................ 254
26.11.1 DHCP Snooping Overview ............................................................................................. 254
26.11.2 ARP Inspection Overview ............................................................................................... 256
Chapter 27
Loop Guard ......................................................................................................................................258
27.1 Loop Guard Overview .............................................................................................................. 258
27.1.1 What You Can Do ............................................................................................................. 258
27.1.2 What You Need to Know ................................................................................................. 258
27.2 Loop Guard Setup ...................................................................................................................... 260
Chapter 28
Layer 2 Protocol Tunneling..............................................................................................................262
28.1 Layer 2 Protocol Tunneling Overview ......................................................................................262
28.1.1 What You Can Do ............................................................................................................. 262
28.1.2 What You Need to Know ................................................................................................. 262
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28.2 Configuring Layer 2 Protocol Tunneling ................................................................................... 263
Chapter 29
PPPoE.................................................................................................................................................266
29.1 PPPoE Intermediate Agent Overview ..................................................................................... 266
29.1.1 What You Can Do ............................................................................................................. 266
29.1.2 What You Need to Know ................................................................................................. 266
29.2 PPPoE Screen .............................................................................................................................. 268
29.3 PPPoE Intermediate Agent ....................................................................................................... 269
29.3.1 PPPoE IA Per-Port .............................................................................................................. 270
29.3.2 PPPoE IA Per-Port Per-VLAN ............................................................................................ 271
29.3.3 PPPoE IA for VLAN ............................................................................................................ 272
Chapter 30
Error Disable......................................................................................................................................274
30.1 Error Disable Overview .............................................................................................................. 274
30.1.1 CPU Protection Overview ................................................................................................ 274
30.1.2 Error-Disable Recovery Overview .................................................................................... 274
30.1.3 What You Can Do ............................................................................................................. 274
30.2 Error Disable Screen .................................................................................................................... 275
30.3 Error-Disable Status .................................................................................................................... 275
30.4 CPU Protection Configuration .................................................................................................. 277
30.5 Error-Disable Detect Configuration ......................................................................................... 278
30.6 Error-Disable Recovery Configuration .....................................................................................279
Chapter 31
Private VLAN........... .... ... .... .... ............................................ .... ... .... ....................................................281
31.1 Private VLAN Overview ............................................................................................................. 281
31.2 Configuring Private VLAN .......................................................................................................... 281
Chapter 32
Green Ethernet.................................................................. .... ...........................................................283
32.1 Green Ethernet Overview ......................................................................................................... 283
32.2 Configuring Green Ethernet ...................................................................................................... 283
Chapter 33
Link Layer Discovery Protocol (LLDP) .............................................................................................285
33.1 LLDP Overview ............................................................................................................................ 285
33.2 LLDP-MED Overview ................................................................................................................... 286
33.3 LLDP Screens ............................................................................................................................... 287
33.4 LLDP Local Status ....................................................................................................................... 288
33.4.1 LLDP Local Port Status Detail ..........................................................................................289
33.5 LLDP Remote Status ................................................................................................................... 292
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33.5.1 LLDP Remote Port Status Detail ...................................................................................... 293
33.6 LLDP Configuration .................................................................................................................... 299
33.6.1 Basic TLV Setting ............................................................................................................... 300
33.6.2 Org-specific TLV Setting .................................................................................................. 301
33.7 LLDP-MED Configuration ........................................................................................................... 302
33.8 LLDP-MED Network Policy ......................................................................................................... 303
33.9 LLDP-MED Location ................................................................................................................... 304
Chapter 34
OAM..................................................................................................................................................308
34.1 OAM Overview .......................................................................................................................... 308
34.1.1 What You Can Do ............................................................................................................. 308
34.2 OAM Status .................................................................................................................................. 308
34.2.1 OAM Details ....................................................................................................................... 309
34.3 OAM Configuration .................................................................................................................... 313
34.4 OAM Remote Loopback ........................................................................................................... 314
Chapter 35
Static Route.......................................................................................................................................316
35.1 Static Routing Overview .......................................................................................................... 316
35.1.1 What You Can Do ............................................................................................................. 316
35.2 Static Routing .............................................................................................................................. 316
35.3 IPv4 Static Route ........................................................................................................................ 317
Chapter 36
Differentiated Services ....................................................................................................................319
36.1 DiffServ Overview ...................................................................................................................... 319
36.1.1 What You Can Do ............................................................................................................. 319
36.1.2 What You Need to Know ................................................................................................. 319
36.2 Activating DiffServ ..................................................................................................................... 320
36.3 DSCP Settings ............................................................................................................................ 321
36.3.1 Configuring DSCP Settings ...............................................................................................322
Chapter 37
DHCP .................................................................................................................................................323
37.1 DHCP Overview .......................................................................................................................... 323
37.1.1 What You Can Do ............................................................................................................. 323
37.1.2 What You Need to Know ................................................................................................. 323
37.2 DHCP Configuration ................................................................................................................... 324
37.3 DHCPv4 Status ........................................................................................................................... 324
37.4 DHCPv4 Relay ............................................................................................................................ 324
37.4.1 DHCPv4 Relay Agent Information ................................................................................... 325
37.4.2 DHCPv4 Option 82 Profile ................................................................................................. 326
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37.4.3 Configuring DHCPv4 Global Relay ................................................................................. 327
37.4.4 DHCPv4 Global Relay Port Configure ........................................................................... 328
37.4.5 Global DHCP Relay Configuration Example .................................................................. 329
37.4.6 Configuring DHCP VLAN Settings ................................................................................. 330
37.4.7 DHCPv4 VLAN Port Configure ........................................................................................ 331
37.4.8 Example: DHCP Relay for Two VLANs ............................................................................. 332
37.5 DHCPv6 Relay ............................................................................................................................. 333
Chapter 38
ARP Setup..........................................................................................................................................335
38.1 ARP Overview ............................................................................................................................ 335
38.1.1 What You Can Do ............................................................................................................. 335
38.1.2 What You Need to Know ................................................................................................. 335
38.2 ARP Setup .................................................................................................................................... 337
38.2.1 ARP Learning .................................................................................................................... 337
Chapter 39
Maintenance....................................................................................................................................339
39.1 Overview ..................................................................................................................................... 339
39.1.1 What You Can Do ............................................................................................................. 339
39.2 The Maintenance Screen ........................................................................................................ 339
39.2.1 Erase Running-Configuration .......................................................................................... 340
39.2.2 Save Configuration ........................................................................................................... 341
39.2.3 Reboot System .................................................................................................................. 341
39.3 Firmware Upgrade ................................................................................................................... 342
39.4 Restore Configuration ................................................................................................................ 343
39.5 Backup Configuration ................................................................................................................ 344
39.6 Tech-Support .............................................................................................................................. 344
39.7 Technical Reference .................................................................................................................. 346
39.7.1 FTP Command Line ........................................................................................................... 346
39.7.2 Filename Conventions ..................................................................................................... 346
39.7.3 FTP Command Line Procedure ....................................................................................... 347
39.7.4 GUI-based FTP Clients ....................................................................................................... 347
39.7.5 FTP Restrictions .................................................................................................................. 347
Chapter 40
Access Control.................................................................................................................................348
40.1 Access Control Overview ......................................................................................................... 348
40.1.1 What You Can Do ............................................................................................................. 348
40.2 The Access Control Main Screen .............................................................................................. 348
40.3 Configuring SNMP .................................................................................................................... 349
40.3.1 Configuring SNMP Trap Group ..................................................................................... 350
40.3.2 Enabling/Disabling Sending of SNMP Traps on a Port ................................................... 351
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Table of Contents
40.3.3 Configuring SNMP User .................................................................................................. 352
40.4 Setting Up Login Accounts ....................................................................................................... 354
40.5 Service Access Control ............................................................................................................ 355
40.6 Remote Management ......................................................................................................... 356
40.7 Technical Reference .................................................................................................................. 357
40.7.1 About SNMP ...................................................................................................................... 357
40.7.2 SSH Overview ..................................................................................................................... 360
40.7.3 Introduction to HTTPS ........................................................................................................ 362
40.7.4 Google Chrome Warning Messages .............................................................................. 366
Chapter 41
Diagnostic.........................................................................................................................................368
41.1 Overview ..................................................................................................................................... 368
41.2 Diagnostic .................................................................................................................................. 368
Chapter 42
System Log........................................................................................................................................371
42.1 Overview ..................................................................................................................................... 371
42.2 System Log .................................................................................................................................. 371
Chapter 43
Syslog Setup .....................................................................................................................................372
43.1 Syslog Overview .......................................................................................................................... 372
43.1.1 What You Can Do ............................................................................................................. 372
43.2 Syslog Setup ................................................................................................................................ 372
Chapter 44
Cluster Management.......................................................................................................................375
44.1 Cluster Management Overview ..............................................................................................375
44.1.1 What You Can Do ............................................................................................................. 375
44.2 Cluster Management Status ..................................................................................................... 376
44.3 Clustering Management Configuration ................................................................................ 377
44.4 Technical Reference .................................................................................................................. 378
44.4.1 Cluster Member Switch Management .......................................................................... 378
Chapter 45
MAC Table........................................................................................................................................381
45.1 MAC Table Overview ................................................................................................................ 381
45.1.1 What You Can Do ............................................................................................................. 381
45.1.2 What You Need to Know ................................................................................................. 381
45.2 Viewing the MAC Table ............................................................................................................ 382
Chapter 46
ARP Table..........................................................................................................................................384
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Table of Contents
46.1 Overview ..................................................................................................................................... 384
46.1.1 What You Can Do ............................................................................................................. 384
46.1.2 What You Need to Know ................................................................................................. 384
46.2 Viewing the ARP Table ............................................................................................................... 384
Chapter 47
Path MTU Table.................................................................................................................................386
47.1 Path MTU Overview .................................................................................................................. 386
47.2 Viewing the Path MTU Table ..................................................................................................... 386
Chapter 48
Configure Clone.................... .... ... ............................................ .... .... ... .... .........................................387
48.1 Overview ..................................................................................................................................... 387
48.2 Configure Clone ........................................................................................................................ 387
Chapter 49
IPv6 Neighbor Table.........................................................................................................................390
49.1 IPv6 Neighbor Table Overview ................................................................................................. 390
49.2 Viewing the IPv6 Neighbor Table ............................................................................................. 390
Chapter 50
Port Status .........................................................................................................................................392
50.1 Overview ..................................................................................................................................... 392
50.2 Port Status .................................................................................................................................... 392
50.2.1 Port Details ...................................................................................................................... 393
50.2.2 Port Utilization ................................................................................................................. 396
Chapter 51
Troubleshooting................................................................................................................................398
51.1 Power, Hardware Connections, and LEDs ............................................................................... 398
51.2 Switch Access and Login ........................................................................................................... 399
51.3 Switch Configuration .................................................................................................................. 401
Appendix A Customer Support ..................................................................................................... 402
Appendix B Common Services...................................................................................................... 408
Appendix C IPv6.............................................................................................................................. 411
Appendix D Legal Information ...................................................................................................... 419
Index.................................................................................................................................................423
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PART I

User’s Guide

19
CHAPTER 1

Getting to Know Your Switch

1.1 Introduction

This chapter introduces the main features and applications of the Switch. The GS1920v2 Series consists of the following models:
• GS1920-8HPv2
• GS1920-24v2
• GS1920-24HPv2
• GS1920-48v2
• GS1920-48HPv2
References to PoE model(s) in this User's Guide only apply to GS1920-8HPv2, GS1920-24HPv2 and GS1920-48HPv2.
The following table describes the port features of the Switch by model.
Table 1 GS1920v2 Series Comparison Table
SWITCH MODELS GS1920-8HPV2 GS1920-24V2 GS1920-24HPV2 GS1920-48V2 GS1920-48HPV2
10/100/1000 Mbps Ethernet Ports
10/100/1000 Mbps PoE Ports
GbE Dual Personality Interface
1 Gbps SFP interface
FAN - - 2 1 2
Wall-mount V - - - -
Rack-mount- VVVV
Desk-mountV----
8 24244444
8-24-48
24444
---22
1.1.1 Management Modes
NebulaFlex for ‘hybrid mode’ means you can set the Switch to operate in only one of either direct standalone or cloud mode (not both at the same time). The Nebula Control Center (NCC) is an alternative cloud-based network management system that allows you to remotely manage and monitor the Switch.
Use the web configurator to configure and manage the Switch directly in standalone mode or use Nebula Control Center (NCC) to configure and manage the Switch in cloud mode. You may also access a minimized version of the web configurator in cloud mode.
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Chapter 1 Getting to Know Your Switch
Nebula Cloud Management
To have Nebula manage the Switch, you must first register it at the Nebula web portal at http:// nebula.zyxel.com, and ensure that Nebula Control Center Discovery is enabled in Basic > Cloud Management > Nebula Control Center Discovery in the Switch web configurator (enabled by default).
Note: See the Switch’s datasheet for the feature differences between standalone and
Nebula cloud management modes. You can find the Switch’s datasheet at the Zyxel website.
See the NCC (Nebula Control Center) User’s Guide for how to configure the Switch using Nebula.
1.1.2 Mode Changing
This section describes how to change the Switch’s management mode.
Note: When you change the Switch’s management mode from standalone mode to Nebula-
manged mode, the configuration settings of the Switch will be overwritten with what you have configured in Nebula.
When you change the Switch’s management mode from Nebula-manged mode to standalone mode, the Switch will reset to its factory-default settings.
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Chapter 1 Getting to Know Your Switch
From Standalone to Nebula Cloud Management
To manage your Switch via Nebula, connect the Switch to the Internet, and register it to a site and organization at the Nebula web portal (http://nebula.zyxel.com).
See the following steps or the Switch Quick Start Guide for how to do device registration.
Go to the NCC to Register the Switch
1 Go to the Nebula web portal in one of three ways.
• Type http://nebula.zyxel.com in a supported web browser. See the Nebula User’s Guide for more information about supported browsers.
• Click the Visit button in the Switch’s login page.
• Click the Nebula icon in the upper right corner of the Switch’s web configurator.
2 Click Login in the Nebula web portal. Enter your myZyxel account information. You’ll be redirected to
another screen where you can sign up for a myZyxel account if you don’t have one.
3 Use the Nebula setup wizard to create an organization and a site.
4 Register the Switch by entering its MAC address and serial number. The serial number and MAC address
can be found in the Status screen or the device back label on the Switch. Use the Zyxel Nebula Mobile App to Register the Switch
1 Download and open the Zyxel Nebula Mobile app in your mobile device. Click Sign Up to create a
myZyxel account or enter your existing account information to log in.
2 You should already have created an organization and a site.
3 Select a site and scan the Switch's QR code to add it to the site. You can find the QR code:
• On a label on the Switch or
• On its box or
• In the web configurator at Basic > Cloud Management > Nebula Switch Registration.
See Section 3.3 on page 40 for more information about the CLOUD LED or Section 7.2 on page 68 for more information about the Hybrid Mode field in the Status screen to see if the Switch goes into Nebula cloud management mode successfully.
Note: The Switch goes into Nebula-managed mode automatically after it can access the
Nebula web portal and is successfully registered there. Its login password and settings are then overwritten with what you have configured in the Nebula web portal.
From Nebula-managed to Standalone
To return to direct management standalone mode, just click Unregister to remove the Switch from the organization/site in the Nebula web portal. The Switch will reboot and restore the factory default settings.
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1.1.3 ZON Utility
With its built-in web configurator, including the Zyxel One Network (ZON) Neighbor Management feature (Section 7.4 on page 75), viewing, managing and configuring the Switch and its neighboring devices is easy.
In addition, Zyxel offers a proprietary software program called Zyxel One Network (ZON) Utility, it is a utility tool that assists you to set up and maintain network devices in a more simple and efficient way. You can download the ZON Utility at www.zyxel.com and install it on a PC (Windows operating system). For more information on ZON Utility see Section 7.3 on page 70.
The following table shows which firmware version supports ZON and Neighbor Management (Smart Connect) for each Switch. The firmware on each Switch is identified by the firmware trunk version, followed by a unique model code and release number in brackets. For example, 4.50(ABMK.0) is a firmware version for GS1920-48HPv2 where 4.50 is the firmware trunk version, ABMK identifies the GS1920­48HPv2 and .0 is the first release of trunk version 4.50.
Table 2 Models and Firmware Version
SWITCH MODEL FIRMWARE VERSION
GS1920-8HPv2 4.50(ABKZ.0) and later
GS1920-24v2 4.50(ABMH.0) and later
GS1920-24HPv2 4.50(ABMI.0) and later
GS1920-48v2 4.50(ABMJ.0) and later
GS1920-48HPv2 4.50(ABMK.0) and later
Chapter 1 Getting to Know Your Switch
1.1.4 PoE
The GS1920-8HPv2, GS1920-24HPv2, and GS1920-48HPv2 come with a Power-over-Ethernet (PoE) feature. The GS1920-8HPv2, GS1920-24HPv2, and GS1920-48HPv2 support the IEEE 802.3at High Power over Ethernet (PoE) standard and IEEE 802.3af PoE standard.
Key feature differences between Switch models are as follows. Other features are common to all models
The following table describes the PoE features of the Switch by model.
Table 3 Models and PoE Features
SWITCH MODEL POE FEATURES
GS1920-8HPv2
GS1920-24HPv2
GS1920-48HPv2

1.2 Applications

IEEE 802.3af PoE IEEE 802.3at High Power over Ethernet (PoE) Power management mode - Classification Power management mode - Consumption Scheduled PoE (PoE Time Range)
This section shows a few examples of using the Switch in various network environments.
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Chapter 1 Getting to Know Your Switch
1.2.1 Backbone 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.
In this example, 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 etc.
Figure 1 Backbone Application
1.2.2 Bridging Example
In this example, 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 via the Switch. You can provide a super-fast uplink connection by using a Gigabit Ethernet/SFP port on the Switch.
Moreover, the Switch eases supervision and maintenance by allowing network managers to centralize multiple servers at a single location.
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Chapter 1 Getting to Know Your Switch
Figure 2 Bridging Application
1.2.3 High Performance Switching Example
The Switch is ideal for connecting two networks that need high bandwidth. In the following example, use trunking to connect these two networks.
Switching to higher-speed LANs such as ATM (Asynchronous Transmission Mode) is not feasible for most people due to the expense of replacing all existing Ethernet cables and adapter cards, restructuring your network and complex maintenance. The Switch can provide the same bandwidth as ATM at much lower cost while still being able to use existing adapters and switches. Moreover, the current LAN structure can be retained as all ports can freely communicate with each other.
Figure 3 High Performance Switched Workgroup Application
1.2.4 IEEE 802.1Q VLAN Application Examples
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 group. A station can belong to more than one group. With VLAN, a station cannot directly talk to or hear from stations that are not in the same group(s) unless such traffic first goes through a router.
For more information on VLANs, refer to Chapter 9 on page 107.
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Chapter 1 Getting to Know Your Switch
1.2.4.1 Tag-based VLAN Example
Ports in the same VLAN group share the same frame broadcast domain thus increase network performance through reduced 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.
Figure 4 Shared Server Using VLAN Example

1.3 Ways to Manage the Switch

Use any of the following methods to manage the Switch.
• Web Configurator. This is recommended for everyday management of the Switch using a (supported) web browser. See Chapter 4 on page 44.
• FTP. Use FTP for firmware upgrades and configuration backup/restore. See Section 39.7.1 on page
346.
• SNMP. The Switch can be monitored by an SNMP manager. See Section 40.7.1 on page 357.
• Cluster Management. Cluster Management allows you to manage multiple switches through one switch, called the cluster manager. See Chapter 43 on page 372.
• ZON Utility. ZON Utility is a program designed to help you deploy and perform initial setup on a network more efficiently. See Section 7.3 on page 70.
• NCC (Zyxel Nebula Control Center). With the NCC, you can remotely manage and monitor the Switch through a cloud-based network management system. See Section 8.12 on page 104 or the NCC User’s Guide for detailed information about how to access the NCC and manage your Switch via the NCC. See the NCC User’s Guide for how to configure Nebula managed devices.
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Chapter 1 Getting to Know Your Switch

1.4 Good Habits for Managing the Switch

Do the following things regularly to make the Switch more secure and to manage the Switch more effectively.
• Change the password. Use a password that’s not easy to guess and that consists of different types of characters, such as numbers and letters.
• Write down the password and put it in a safe place.
• Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the device becomes unstable or even crashes. If you forget your password, you will have to reset the Switch to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the Switch. You could simply restore your last configuration.
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Hardware Installation and

2.1 Installation Scenarios

This chapter shows you how to install and connect the Switch.
The Switch can be:
• Placed on a desktop.
• Desk-mounted under a table.
• Wall-mounted on a wall
• Rack-mounted on a standard EIA rack.
CHAPTER 2
Connection
Note: Ask an authorized technician to attach the Switch under a desk or to the rack/wall. See
the Installation Requirements sections in this chapter to know the types of screws and screw drivers for each mounting method.
WARNING! Failure to use the proper screws may damage the unit.
See Table 1 on page 20 for the comparison table of the hardware installation methods for each model.
To start using the Switch, simply connect the power cables and turn it on.
WARNING! The surface of the Switch could be hot when it’s functioning. Do NOT put your hands on it. You may get burned. This could happen especially when you’re using the GS1920-8HPv2. It’s a compact and fanless Switch capable of supplying Power over Ethernet (PoE).
WARNING! This Switch is not suitable for use in locations where children are likely to be present.

2.2 Desktop Installation Procedure

1 Make sure the Switch is clean and dry.
2 Remove the adhesive backing from the rubber feet.
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Chapter 2 Hardware Installation and Connection
3 Attach the rubber feet to each corner on the bottom of the Switch. These rubber feet help protect the
Switch from shock or vibration and ensure space between devices when stacking.
Note: Rubber feet will be attached to the GS1920-8HPv2 by default. To make sure of air
circulation, do NOT remove them.
Figure 5 Attaching Rubber Feet
4 Set the Switch on a smooth, level surface strong enough to support the weight of the Switch and the
connected cables. Make sure there is a power outlet nearby.
5 Make sure there is at least 40 mm of clearance around and from the surface to the bottom of the Switch
to allow air circulation and the attachment of cables and the power cord.
Note: Make sure that you meet the requirements of clearance when you use the Switch for
stacking. It’s recommended to only use the Switch with Fans in a stack. See Table 1 on
page 20 to see whether your Switch has fans.
WARNING! Do NOT block the ventilation holes nor store things on the Switch. Allow clearance for the ventilation holes to prevent your Switch from overheating. This is especially crucial when your Switch doesn’t have fans. Overheating could affect the performance of your Switch, or even damage it.

2.3 Desk Mounting (GS1920-8HPv2 Only)

The GS1920-8HPv2 can be mounted under a table. Follow the steps below to mount your Switch under a table.
2.3.1 Installation Requirements
• Two mounting brackets
• Eight M3 flat head screws and a #2 Philips screwdriver
• Four M4 flat head screws and a #2 Philips screwdriver
• Four washers (inside diameter: 3.5mm; outside diameter: 11.5mm)
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Chapter 2 Hardware Installation and Connection
2.3.2 Precautions
• Make sure to place the Switch horizontally under a smooth level surface.
• Make sure the table is sturdy enough for desk mounting.
• Make sure there is enough table thickness to drill screws.
• Make sure there is sufficient space for port connections.
2.3.3 Attaching the Mounting Brackets to the Switch
1 Position a mounting bracket on one side of the Switch, lining up the four screw holes on the bracket with
the screw holes on the side of the Switch. Figure 6 Attaching the Mounting Brackets
2 Using a #2 Philips screwdriver, install the M3 flat head screws through the mounting bracket holes into
the Switch.
3 Repeat steps 1 and 2 to install the second mounting bracket on the other side of the Switch.
4 You may now mount the Switch under a table. Proceed to the next section.
2.3.4 Mounting the Switch under a Table
1 Determine where you want to mount the Switch under a table. See Section 2.3 on page 29 to choose a
suitable location.
2 Position the Switch in place and mark the places for drilling with the attached brackets.
3 Drill holes at the marked places under the table.
4 Line up the two screw holes on the bracket with the screw holes under the table.
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