ZyXEL Communications GS-1548 User manual

www.zyxel.com
www.zyxel.com
GS-1524 / GS-1548
Web Managed GbE Switch
Copyright © 2009
ZyXEL Communications Corporation
Firmware Version 1.12
Edition 2, 5/2009
Default Login Details
IP Address http://192.168.1.1
User Name admin
Password 1234

About This User's Guide
GS-1524/GS-1548 User’s Guide 3
About This User's Guide
Intended Audience
This manual is intended for people who want to configure the Switch using the
web configurator. You should have at least a basic knowledge of TCP/IP
networking concepts and topology.
Related Documentation
•QuickStartGuide
The Quick Start Guide is designed to help you get up and running right away. It
contains information on setting up your hardware connections.
• Web Configurator Online Help
Embedded web help for descriptions of individual screens and supplementary
information.
Note: It is recommended you use the web configurator to configure the Switch.
• Supporting Disc
Refer to the included CD for support documents.
• ZyXEL Web Site
Please refer to www.zyxel.com for additional support documentation and
product certifications.
User Guide Feedback
Help us help you. Send all User Guide-related comments, questions or suggestions
for improvement to the following address, or use e-mail instead. Thank you!
The Technical Writing Team,
ZyXEL Communications Corp.,
6 Innovation Road II,
Science-Based Industrial Park,
Hsinchu, 300, Taiwan.
E-mail: [email protected]om.tw
Customer Support
In the event of problems that cannot be solved by using this manual, you should
contact your vendor. If you cannot contact your vendor, then contact a ZyXEL
office for the region in which you bought the device. See http://www.zyxel.com/

About This User's Guide
GS-1524/GS-1548 User’s Guide
4
web/contact_us.php for contact information. Please have the following information
ready when you contact an office.
• Product model and serial number.
•WarrantyInformation.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.

Document Conventions
GS-1524/GS-1548 User’s Guide 5
Document Conventions
Warnings and Notes
These are how warnings and notes are shown in this User’s 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
• The GS-1524 / GS-1548 may be referred to as the “Switch”, the “device”, or the
“system” in this User’s Guide.
• Product labels, screen names, field labels and field choices are all in bold font.
• A key stroke is denoted by square brackets and uppercase text, for example,
[ENTER] means the “enter” or “return” key on your keyboard.
• “Enter” means for you to type one or more characters and then press the
[ENTER] key. “Select” or “choose” means for you to use one of the predefined
choices.
• A right angle bracket ( > ) within a screen name denotes a mouse click. For
example, Maintenance > Log > Log Setting means you first click
Maintenance in the navigation panel, then the Log sub menu and finally the
Log Setting tab to get to that screen.
• Units of measurement may denote the “metric” value or the “scientific” value.
For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may
denote “1000000” or “1048576” and so on.
• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other
words”.

Document Conventions
GS-1524/GS-1548 User’s Guide
6
Icons Used in Figures
Figures in this User’s Guide may use the following generic icons. The Switch icon is
not an exact representation of your device.
The Switch Computer Notebook computer
Server DSLAM Firewall
Telephone Switch Router

Safety Warnings
GS-1524/GS-1548 User’s Guide 7
Safety Warnings
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel should
service or disassemble this device. Please contact your vendor for further information.
• Make sure to connect the cables to the correct ports.
• Place connecting cables carefully so that no one will step on them or stumble over them.
• Always disconnect all cables from this device before servicing or disassembling.
• Use ONLY an appropriate power adaptor or cord for your device.
• Connect the power adaptor or cord to the right supply voltage (for example, 110V AC in
North America or 230V AC in Europe).
• Do NOT allow anything to rest on the power adaptor or cord and do NOT place the
product where anyone can walk on the power adaptor or cord.
• Do NOT use the device if the power adaptor or cord is damaged as it might cause
electrocution.
• If the power adaptor or cord is damaged, remove it from the power outlet.
• Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a
new one.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your
device.
This product is recyclable. Dispose of it properly.

Safety Warnings
GS-1524/GS-1548 User’s Guide
8

Contents Overview
GS-1524/GS-1548 User’s Guide 9
Contents Overview
Introduction and Hardware Overview ..................................................................................17
Getting to Know Your Switch ..................................................................................................... 19
Hardware Installation and Connection ....................................................................................... 23
Hardware Overview ................................................................................................................... 27
Basic & Advanced Settings ..................................................................................................33
The Web Configurator ............................................................................................................... 35
System ....................................................................................................................................... 43
Port Settings .............................................................................................................................. 49
System and Port Statistics ......................................................................................................... 53
VLAN ......................................................................................................................................... 57
Trunking ..................................................................................................................................... 63
Mirroring .................................................................................................................................... 65
QoS ........................................................................................................................................... 67
Port Rate Limit and Storm Control ............................................................................................. 77
Layer 2 (L2) Management ......................................................................................................... 83
Cable Diagnostics ...................................................................................................................... 87
Auto Denial of Service (DoS) ..................................................................................................... 89
Auto VoIP ................................................................................................................................... 93
Management and Troubleshooting .....................................................................................95
Event Logging ............................................................................................................................ 97
SNMP ...................................................................................................................................... 105
RMON-Lite ...............................................................................................................................121
Dynamic ARP .......................................................................................................................... 137
Troubleshooting ....................................................................................................................... 141
Product Specifications ............................................................................................................. 145
Appendices and Index .........................................................................................................151

Contents Overview
GS-1524/GS-1548 User’s Guide
10

Table of Contents
GS-1524/GS-1548 User’s Guide 11
Table of Contents
About This User's Guide..........................................................................................................3
Document Conventions............................................................................................................5
Safety Warnings........................................................................................................................7
Contents Overview ...................................................................................................................9
Table of Contents....................................................................................................................11
Part I: Introduction and Hardware Overview....................................... 17
Chapter 1
Getting to Know Your Switch.................................................................................................19
1.1 Introduction .......................................................................................................................... 19
1.1.1 Backbone Application ................................................................................................. 19
1.1.2 Bridging Example ....................................................................................................... 20
1.1.3 High Performance Switching Example ....................................................................... 21
1.1.4 IEEE 802.1Q VLAN Application Examples ................................................................ 21
Chapter 2
Hardware Installation and Connection .................................................................................23
2.1 Freestanding Installation ..................................................................................................... 23
2.2 Mounting the Switch on a Rack .......................................................................................... 24
2.2.1 Rack-mounted Installation Requirements .................................................................. 24
2.2.2 Attaching the Mounting Brackets to the Switch .......................................................... 24
2.2.3 Mounting the Switch on a Rack .................................................................................. 25
Chapter 3
Hardware Overview.................................................................................................................27
3.1 Front Panel ........................................................................................................................ 27
3.1.1 Ethernet Ports ............................................................................................................ 28
3.1.2 Mini-GBIC Slots .........................................................................................................28
3.2 The RESET Button .............................................................................................................. 30
3.3 LEDs ................................................................................................................................ 30
3.4 Rear Panel ........................................................................................................................... 31
3.4.1 Power Connector ....................................................................................................... 32

Table of Contents
GS-1524/GS-1548 User’s Guide
12
Part II: Basic & Advanced Settings ...................................................... 33
Chapter 4
The Web Configurator ............................................................................................................35
4.1 Introduction .......................................................................................................................... 35
4.2 System Login .................................................................................................................... 35
4.3 The Status Screen .......................................................................................................... 36
4.3.1 The LED Panel ........................................................................................................... 37
4.3.2 The Navigation Panel ................................................................................................. 37
4.3.3 Change Your Password .......................................................................................... 39
4.4 Saving Your Configuration ................................................................................................... 39
4.5 Switch Lockout .................................................................................................................. 40
4.6 Resetting the Switch ......................................................................................................... 40
4.7 Logging Out of the Web Configurator ................................................................................. 41
4.8 Help ................................................................................................................................... 41
Chapter 5
System.....................................................................................................................................43
5.1 System Screen ................................................................................................................... 43
5.1.1 Configure IP Address ................................................................................................. 44
5.1.2 Layer 2 (L2) Table Aging ............................................................................................ 45
5.1.3 Backup Settings ......................................................................................................... 45
5.1.4 Restore Settings .........................................................................................................46
5.2 System: Change Password .............................................................................................. 47
5.3 Firmware Upgrade ............................................................................................................... 47
5.3.1 System: Restart/Reset ............................................................................................. 48
Chapter 6
Port Settings............................................................................................................................49
6.1 Port Status ......................................................................................................................... 49
6.2 Port Configuration .............................................................................................................. 50
Chapter 7
System and Port Statistics.....................................................................................................53
7.1 Overview .............................................................................................................................. 53
7.2 Statistics Summary .......................................................................................................... 53
7.3 Port Statistics ...................................................................................................................... 54
Chapter 8
VLAN........................................................................................................................................57
8.1 Introduction to IEEE 802.1Q Tagged VLANs .................................................................. 57
8.1.1 Forwarding Tagged and Untagged Frames ................................................................ 57
8.2 Static VLAN ......................................................................................................................... 58

Table of Contents
GS-1524/GS-1548 User’s Guide 13
8.2.1 IEEE 802.1Q VLAN Screen ....................................................................................... 58
8.2.2 Create IEEE 802.1Q VLAN Screen ........................................................................... 59
8.2.3 Edit IEEE 802.1Q VLAN Screen ............................................................................... 60
Chapter 9
Trunking...................................................................................................................................63
9.1 Trunking Overview .............................................................................................................. 63
9.1.1 Distribution Criteria ..................................................................................................... 63
9.2 Trunk Setting Screen ........................................................................................................... 64
Chapter 10
Mirroring..................................................................................................................................65
10.1 Port Mirroring Settings ...................................................................................................... 65
Chapter 11
QoS...........................................................................................................................................67
11.1 QoS Overview ................................................................................................................... 67
11.1.1 Weighted Round Robin (WRR) ................................................................................ 67
11.1.2 Strict Priority ............................................................................................................. 68
11.2 QoS Enhancement ............................................................................................................. 68
11.3 Configuring QoS ................................................................................................................ 69
11.3.1 Change Number of Queues ................................................................................... 70
11.4 Advanced QoS Settings ....................................................................................................70
11.4.1 Port Based QoS ....................................................................................................... 71
11.4.2 DSCP Based QoS .................................................................................................... 72
11.4.3 Differentiated Services Code Point (DSCP) Overview ............................................. 72
11.4.4 DSCP Based QoS Screen ........................................................................................ 73
11.4.5 ToS Based QoS ........................................................................................................ 74
11.4.6 IP Address Based QoS ............................................................................................ 75
Chapter 12
Port Rate Limit and Storm Control........................................................................................77
12.1 Port Rate Screen ............................................................................................................. 77
12.1.1 Rate Limit Screen ................................................................................................... 78
12.1.2 Broadcast Storm Control Setup ............................................................................... 79
Chapter 13
Layer 2 (L2) Management.......................................................................................................83
13.1 Configuring L2 Management ........................................................................................ 83
13.1.1 Add a Static MAC Address Entry ........................................................................... 84
13.2 Viewing the L2 Address Table ...................................................................................... 85
Chapter 14
Cable Diagnostics...................................................................................................................87

Table of Contents
GS-1524/GS-1548 User’s Guide
14
14.1 Diagnostics Overview ....................................................................................................... 87
Chapter 15
Auto Denial of Service (DoS).................................................................................................89
15.1 About Denial of Service Attacks ....................................................................................... 89
15.1.1 DoS Attacks Summary ............................................................................................. 89
15.2 Global Auto DoS Attack Prevention ................................................................................... 90
15.3 Advanced Auto DoS Attack Prevention ............................................................................ 91
Chapter 16
Auto VoIP.................................................................................................................................93
16.1 About Auto VoIP ............................................................................................................... 93
16.2 Auto VoIP Settings ............................................................................................................. 94
Part III: Management and Troubleshooting ........................................ 95
Chapter 17
Event Logging.........................................................................................................................97
17.1 Event Logging Overview ...................................................................................................97
17.2 Logging Screen ................................................................................................................. 98
17.3 Logging: Add Server ......................................................................................................... 99
17.4 Viewing RAM and Flash Logs ........................................................................................... 99
17.5 Searching RAM and Flash Logs ...................................................................................... 102
17.5.1 Search Results ...................................................................................................... 103
Chapter 18
SNMP......................................................................................................................................105
18.1 About SNMP .................................................................................................................. 105
18.1.1 Supported MIBs ................................................................................................... 106
18.1.2 SNMP Traps ......................................................................................................... 107
18.1.3 SNMP v3 and Authentication ................................................................................. 107
18.1.4 SNMP EngineID .................................................................................................... 107
18.2 SNMP Group ..................................................................................................................108
18.2.1 SNMP Group: Create ............................................................................................109
18.2.2 SNMP Group: Modify .............................................................................................110
18.3 SNMP User ......................................................................................................................110
18.3.1 SNMP User: Create ...............................................................................................112
18.3.2 SNMP User: Modify ................................................................................................113
18.4 SNMP Community ...........................................................................................................114
18.4.1 SNMP Community: Create .....................................................................................115
18.4.2 SNMP Community: Modify .....................................................................................116

Table of Contents
GS-1524/GS-1548 User’s Guide 15
18.5 SNMP Notification ...........................................................................................................116
18.6 SNMP Trap Station ..........................................................................................................117
18.6.1 SNMP Trap Station: Create ....................................................................................119
18.6.2 SNMP Trap Station: Modify ....................................................................................119
Chapter 19
RMON-Lite .............................................................................................................................121
19.1 RMON-Lite Overview ......................................................................................................121
19.2 RMON Statistics: Overview ............................................................................................ 122
19.3 RMON-Lite Statistics: Port .............................................................................................. 123
19.4 RMON-Lite History MIB ................................................................................................... 124
19.4.1 RMON History Control: Overview ......................................................................... 125
19.4.2 RMON History Control: Modify .............................................................................. 126
19.4.3 RMON History Statistics: Overview ...................................................................... 127
19.4.4 RMON History Statistics: Control .........................................................................128
19.5 RMON Alarm: Overview ................................................................................................. 129
19.5.1 RMON Alarm: Create New Alarm ........................................................................ 130
19.6 RMON Event: Overview .................................................................................................132
19.6.1 RMON Event: Create New Event .......................................................................... 133
19.7 RMON Event Log: Overview .......................................................................................... 134
19.7.1 RMON Event Log: Event ....................................................................................... 135
Chapter 20
Dynamic ARP ........................................................................................................................137
20.1 ARP Table Overview .......................................................................................................137
20.1.1 ARP Table Entries .................................................................................................. 137
20.1.2 How Dynamic ARP Works ................................................................................... 137
20.2 Enabling Dynamic ARP ..................................................................................................138
20.3 Viewing ARP Table Entries ...........................................................................................139
20.4 Adding ARP Table Entries ........................................................................................... 140
Chapter 21
Troubleshooting....................................................................................................................141
21.1 Power, Hardware Connections, and LEDs ...................................................................... 141
21.2 Switch Access and Login ................................................................................................. 142
Chapter 22
Product Specifications.........................................................................................................145
22.1 General Switch Specifications .........................................................................................145
Part IV: Appendices and Index ........................................................... 151

Table of Contents
GS-1524/GS-1548 User’s Guide
16
Appendix A IP Addresses and Subnetting ...........................................................................153
Appendix B Legal Information..............................................................................................163
Index.......................................................................................................................................167

17
PART I
Introduction and
Hardware Overview
Getting to Know Your Switch (19)
Hardware Installation and Connection
(23)
Hardware Overview (27)

18

GS-1524/GS-1548 User’s Guide 19
CHAPTER 1
Getting to Know Your Switch
This chapter introduces the main features and applications of the Switch.
1.1 Introduction
Your Switch is an intelligent layer 2 switch with 1000BASE-T RJ-45 ports and mini-
GBIC slots for fiber-optic transceivers. The Switch features dual-personality ports,
each of which consists of one 1000BASE-T RJ-45 port and one mini-GBIC slot, with
either interface active at one time.
• The GS-1524 has 20 1000BASE-T RJ-45 ports, and four dual-personality ports.
• The GS-1548 has 44 1000BASE-T RJ-45 ports, and four dual-personality ports.
With its built-in web configurator, managing and configuring the Switch is easy.
See Chapter 22 on page 145 for a full list of software features available on the
Switch.
1.1.1 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.

Chapter 1 Getting to Know Your Switch
GS-1524/GS-1548 User’s Guide
20
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
1.1.2 Bridging Example
In this 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 via the Switch. You can provide a
super-fast uplink connection by using a Gigabit Ethernet/mini-GBIC port on the
Switch.
Moreover, the Switch eases supervision and maintenance by allowing network
managers to centralize multiple servers at a single location.
Figure 2 Bridging Application