ZyXEL Communications GS-1548, GS-1524 User Manual

Name: ZyXEL Communications GS-1548
Brand: ZyXEL Communications
SKU: 1330638
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GS-1524 / GS-1548

Web Managed GbE Switch

User’s Guide

Version 1.12 8/2007 Edition 1

www.zyxel.com

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.

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.

"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”.

GS-1524/GS-1548 User’s Guide

Document Conventions

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

GS-1524/GS-1548 User’s Guide

Safety Warnings

For your safety, be sure to read and follow all warning notices and instructions.

•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.

GS-1524/GS-1548 User’s Guide

Safety Warnings

GS-1524/GS-1548 User’s Guide

Safety Warnings

GS-1524/GS-1548 User’s Guide

Contents Overview

Introduction and Hardware Overview ..................................................................................	25
Getting to Know Your Switch .....................................................................................................	27
Hardware Installation and Connection .......................................................................................	31
Hardware Overview ...................................................................................................................	35
Basic & Advanced Settings ..................................................................................................	41
The Web Configurator ...............................................................................................................	43
System .......................................................................................................................................	49
Port Settings ..............................................................................................................................	55
System and Port Statistics .........................................................................................................	57
VLAN .........................................................................................................................................	61
Trunking .....................................................................................................................................	65
Mirroring ....................................................................................................................................	67
QoS ...........................................................................................................................................	69
Port Rate Limit and Storm Control .............................................................................................	79
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 ................................................................................................................................	119
Dynamic ARP ..........................................................................................................................	135
Troubleshooting .......................................................................................................................	139
Product Specifications .............................................................................................................	143
Appendices and Index .........................................................................................................	147

GS-1524/GS-1548 User’s Guide

Contents Overview

GS-1524/GS-1548 User’s Guide

Table of Contents

About This User's Guide ..........................................................................................................		3
Document Conventions............................................................................................................		4
Safety Warnings........................................................................................................................		6
Contents Overview ...................................................................................................................		9
Table of Contents....................................................................................................................		11
List of Figures .........................................................................................................................		17
List of Tables...........................................................................................................................		21
Part I: Introduction and Hardware Overview .......................................		25
Chapter 1
Getting to Know Your Switch.................................................................................................		27
1.1	Introduction ..........................................................................................................................	27
	1.1.1 Backbone Application .................................................................................................	27
	1.1.2 Bridging Example .......................................................................................................	28
	1.1.3 High Performance Switching Example .......................................................................	28
	1.1.4 IEEE 802.1Q VLAN Application Examples ................................................................	29
Chapter 2
Hardware Installation and Connection .................................................................................		31
2.1	Freestanding Installation .....................................................................................................	31
2.2	Mounting the Switch on a Rack ..........................................................................................	32
	2.2.1 Rack-mounted Installation Requirements ..................................................................	32
	2.2.2 Attaching the Mounting Brackets to the Switch ..........................................................	32
	2.2.3 Mounting the Switch on a Rack ..................................................................................	33
Chapter 3
Hardware Overview.................................................................................................................		35
3.1	Front Panel ........................................................................................................................	35
	3.1.1 Ethernet Ports ............................................................................................................	36
	3.1.2 Mini-GBIC Slots .........................................................................................................	36
3.2	LEDs ................................................................................................................................	38
3.3	Rear Panel ...........................................................................................................................	38

GS-1524/GS-1548 User’s Guide

Table of Contents
	3.3.1 Power Connector .......................................................................................................	39
3.4	The RESET Button ..............................................................................................................	39
Part II: Basic & Advanced Settings ......................................................		41
Chapter 4
The Web Configurator ............................................................................................................		43
4.1	Introduction ..........................................................................................................................	43
4.2	System Login ....................................................................................................................	43
4.3	The Status Screen ..........................................................................................................	44
	4.3.1 The LED Panel ...........................................................................................................	45
	4.3.2 The Navigation Panel .................................................................................................	45
	4.3.3 Change Your Password ..........................................................................................	46
4.4	Saving Your Configuration ...................................................................................................	47
4.5	Switch Lockout ..................................................................................................................	47
4.6	Resetting the Switch .........................................................................................................	47
4.7	Logging Out of the Web Configurator .................................................................................	47
4.8	Help ...................................................................................................................................	48
Chapter 5
System .....................................................................................................................................		49
5.1	System Screen ...................................................................................................................	49
	5.1.1 Configure IP Address .................................................................................................	50
	5.1.2 Layer 2 (L2) Table Aging ............................................................................................	50
	5.1.3 Backup Settings .........................................................................................................	51
	5.1.4 Restore Settings .........................................................................................................	51
5.2	System: Change Password ..............................................................................................	52
5.3	Firmware Upgrade ...............................................................................................................	52
	5.3.1 System: Restart/Reset .............................................................................................	53
Chapter 6
Port Settings............................................................................................................................		55
6.1	Port Status .........................................................................................................................	55
6.2	Port Configuration ..............................................................................................................	56
Chapter 7
System and Port Statistics.....................................................................................................		57
7.1	Overview ..............................................................................................................................	57
7.2	Statistics Summary ..........................................................................................................	57
7.3	Port Statistics ......................................................................................................................	58

GS-1524/GS-1548 User’s Guide

	Table of Contents
Chapter 8
VLAN ........................................................................................................................................	61
8.1 Introduction to IEEE 802.1Q Tagged VLANs ..................................................................	61
8.1.1 Forwarding Tagged and Untagged Frames ................................................................	61
8.2 Static VLAN .........................................................................................................................	62
8.2.1 IEEE 802.1Q VLAN Screen .......................................................................................	62
8.2.2 Create IEEE 802.1Q VLAN Screen ...........................................................................	63
8.2.3 Edit IEEE 802.1Q VLAN Screen ...............................................................................	63
Chapter 9
Trunking...................................................................................................................................	65
9.1 Trunking Overview ..............................................................................................................	65
9.1.1 Distribution Criteria .....................................................................................................	65
9.2 Trunk Setting Screen ...........................................................................................................	65
Chapter 10
Mirroring ..................................................................................................................................	67
10.1 Port Mirroring Settings ......................................................................................................	67
Chapter 11
QoS...........................................................................................................................................	69
11.1 QoS Overview ...................................................................................................................	69
11.1.1 Weighted Round Robin (WRR) ................................................................................	69
11.1.2 Strict Priority .............................................................................................................	69
11.2 QoS Enhancement .............................................................................................................	70
11.3 Configuring QoS ................................................................................................................	70
11.3.1 Change Number of Queues ...................................................................................	72
11.4 Advanced QoS Settings ....................................................................................................	72
11.4.1 Port Based QoS .......................................................................................................	72
11.4.2 DSCP Based QoS ....................................................................................................	74
11.4.3 Differentiated Services Code Point (DSCP) Overview .............................................	74
11.4.4 DSCP Based QoS Screen ........................................................................................	74
11.4.5 ToS Based QoS ........................................................................................................	75
11.4.6 IP Address Based QoS ............................................................................................	76
Chapter 12
Port Rate Limit and Storm Control........................................................................................	79
12.1 Port Rate Screen .............................................................................................................	79
12.1.1 Rate Limit Screen ...................................................................................................	80
12.1.2 Broadcast Storm Control Setup ...............................................................................	81
Chapter 13
Layer 2 (L2) Management.......................................................................................................	83

GS-1524/GS-1548 User’s Guide

Table of Contents
13.1	Configuring L2 Management ........................................................................................	83
13.1.1 Add a Static MAC Address Entry ...........................................................................		84
13.2	Viewing the L2 Address Table ......................................................................................	84
Chapter 14
Cable Diagnostics...................................................................................................................		87
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 ............................................................................	90
Chapter 16
Auto VoIP .................................................................................................................................		93
16.1	About Auto VoIP ...............................................................................................................	93
16.2	Auto VoIP Settings .............................................................................................................	93
Part III: Management and Troubleshooting ........................................		95
Chapter 17
Event Logging.........................................................................................................................		97
17.1	Event Logging Overview ...................................................................................................	97
17.2	Logging Screen .................................................................................................................	97
17.3	Logging: Add Server .........................................................................................................	98
17.4	Viewing RAM and Flash Logs ...........................................................................................	99
17.5	Searching RAM and Flash Logs ......................................................................................	100
17.5.1 Search Results ......................................................................................................		102
Chapter 18
SNMP......................................................................................................................................		105
18.1 About SNMP ..................................................................................................................		105
18.1.1 Supported MIBs ...................................................................................................		106
18.1.2 SNMP Traps .........................................................................................................		106
18.1.3 SNMP v3 and Authentication .................................................................................		106
18.1.4 SNMP EngineID ....................................................................................................		107
18.2 SNMP Group ..................................................................................................................		107
18.2.1 SNMP Group: Create ............................................................................................		108
18.2.2 SNMP Group: Modify ............................................................................................		109

GS-1524/GS-1548 User’s Guide

		Table of Contents
18.3 SNMP User ......................................................................................................................		110
18.3.1 SNMP User: Create ...............................................................................................		110
18.3.2 SNMP User: Modify ................................................................................................		111
18.4 SNMP Community ...........................................................................................................		112
18.4.1 SNMP Community: Create .....................................................................................		113
18.4.2 SNMP Community: Modify .....................................................................................		114
18.5	SNMP Notification ...........................................................................................................	114
18.6	SNMP Trap Station ..........................................................................................................	115
18.6.1 SNMP Trap Station: Create ....................................................................................		116
18.6.2 SNMP Trap Station: Modify ....................................................................................		117
Chapter 19
RMON-Lite	.............................................................................................................................	119
19.1	RMON-Lite Overview .......................................................................................................	119
19.2	RMON Statistics: Overview .............................................................................................	119
19.3	RMON-Lite Statistics: Port ..............................................................................................	120
19.4	RMON-Lite History MIB ...................................................................................................	122
19.4.1 RMON History Control: Overview .........................................................................		122
19.4.2 RMON History Control: Modify ..............................................................................		123
19.4.3 RMON History Statistics: Overview ......................................................................		124
19.4.4 RMON History Statistics: Control .........................................................................		125
19.5	RMON Alarm: Overview .................................................................................................	127
19.5.1 RMON Alarm: Create New Alarm ........................................................................		128
19.6	RMON Event: Overview .................................................................................................	129
19.6.1 RMON Event: Create New Event ..........................................................................		130
19.7	RMON Event Log: Overview ..........................................................................................	131
19.7.1 RMON Event Log: Event .......................................................................................		132
Chapter 20
Dynamic ARP ........................................................................................................................		135
20.1	ARP Table Overview .......................................................................................................	135
20.1.1 ARP Table Entries ..................................................................................................		135
20.1.2 How Dynamic ARP Works ...................................................................................		135
20.2	Enabling Dynamic ARP ..................................................................................................	135
20.3	Viewing ARP Table Entries ...........................................................................................	137
20.4	Adding ARP Table Entries ...........................................................................................	137
Chapter 21
Troubleshooting....................................................................................................................		139
21.1	Power, Hardware Connections, and LEDs ......................................................................	139
21.2	Switch Access and Login .................................................................................................	139
Chapter 22
Product Specifications .........................................................................................................		143

GS-1524/GS-1548 User’s Guide

Table of Contents
22.1 General Switch Specifications .........................................................................................		143
Part IV: Appendices and Index ...........................................................		147
Appendix	A IP Addresses and Subnetting ...........................................................................	149
Appendix	B Legal Information ..............................................................................................	157
Appendix	C Customer Support.............................................................................................	161
Index.......................................................................................................................................		167

GS-1524/GS-1548 User’s Guide

List of Figures

Figure 1 Backbone Application ..............................................................................................................	27
Figure 2 Bridging Application ................................................................................................................	28
Figure 3 High Performance Switched Workgroup Application ...............................................................	29
Figure 4 Shared Server Using VLAN Example ......................................................................................	29
Figure 5 Attaching Rubber Feet ...........................................................................................................	31
Figure 6 Attaching the Mounting Brackets .............................................................................................	32
Figure 7 Mounting the Switch on a Rack ..............................................................................................	33
Figure 8 GS-1524 Front Panel .............................................................................................................	35
Figure 9 GS-1548 Front Panel .............................................................................................................	35
Figure 10 Transceiver Installation Example ...........................................................................................	37
Figure 11 Installed Transceiver .............................................................................................................	37
Figure 12 Opening the Transceiver’s Latch Example ............................................................................	37
Figure 13 Transceiver Removal Example ..............................................................................................	37
Figure 14 GS-1524 Rear Panel ..............................................................................................................	38
Figure 15 GS-1548 Rear Panel ..............................................................................................................	39
Figure 16 Web Configurator: Login .......................................................................................................	44
Figure 17 Web Configurator Home Screen (System) ............................................................................	44
Figure 18 LED Panel .............................................................................................................................	45
Figure 19 Change Administrator Login Password .................................................................................	47
Figure 20 Web Configurator: Logout Link ..............................................................................................	48
Figure 21 System ..................................................................................................................................	49
Figure 22 Configure IP Address .............................................................................................................	50
Figure 23 Configure L2 Table Aging .......................................................................................................	50
Figure 24 Restore Settings ....................................................................................................................	51
Figure 25 Restore Configuration Error ...................................................................................................	51
Figure 26 System: Password .................................................................................................................	52
Figure 27 Firmware Upgrade ................................................................................................................	53
Figure 28 System: Restart/Reset ..........................................................................................................	53
Figure 29 Port Status .............................................................................................................................	55
Figure 30 Port Configuration .................................................................................................................	56
Figure 31 Statistics ................................................................................................................................	57
Figure 32 Status: Port Details ................................................................................................................	58
Figure 33 VLAN: VLAN Status ...............................................................................................................	62
Figure 34 VLAN: Create VLAN .............................................................................................................	63
Figure 35 VLAN: Edit VLAN ..................................................................................................................	64
Figure 36 Trunk Setting ..........................................................................................................................	66
Figure 37 Mirror Setting .........................................................................................................................	67
Figure 38 QoS Setting ...........................................................................................................................	71

GS-1524/GS-1548 User’s Guide

List of Figures
Figure 39 Change Number of Queues ..................................................................................................	72
Figure 40 Port Based QoS ....................................................................................................................	73
Figure 41 DSCP Based QoS .................................................................................................................	75
Figure 42 ToS Based QoS .....................................................................................................................	76
Figure 43 IP Address Based QoS .........................................................................................................	77
Figure 44 Port Rate Limit .......................................................................................................................	79
Figure 45 Rate Limit Configuration ........................................................................................................	80
Figure 46 Broadcast Storm Control .......................................................................................................	81
Figure 47 L2 Management ....................................................................................................................	83
Figure 48 Add a Static MAC Entry .........................................................................................................	84
Figure 49 Display L2 Address Table ......................................................................................................	85
Figure 50 Cable Diagnostic ...................................................................................................................	87
Figure 51 Global Auto DoS Attack Prevention ......................................................................................	90
Figure 52 Advanced Auto DoS Attack Prevention .................................................................................	91
Figure 53 Auto VoIP Settings ................................................................................................................	94
Figure 54 Logging ..................................................................................................................................	97
Figure 55 Logging: Add Server ..............................................................................................................	98
Figure 56 Logs: RAM/Flash ...................................................................................................................	99
Figure 57 Searching: RAM/Flash Logs ................................................................................................	101
Figure 58 Logs: Search Results ...........................................................................................................	102
Figure 59 SNMP Management Model ................................................................................................	105
Figure 60 SNMP EngineID ..................................................................................................................	107
Figure 61 SNMP Group .......................................................................................................................	108
Figure 62 SNMP Group: Create ..........................................................................................................	108
Figure 63 SNMP Group: Modify ..........................................................................................................	109
Figure 64 SNMP User ..........................................................................................................................	110
Figure 65 SNMP User: Create ..............................................................................................................	111
Figure 66 SNMP User: Modify ..............................................................................................................	111
Figure 67 SNMP Community ................................................................................................................	112
Figure 68 SNMP Community: Create ...................................................................................................	113
Figure 69 SNMP Community: Modify ...................................................................................................	114
Figure 70 SNMP Notification ................................................................................................................	115
Figure 71 SNMP Trap Station ...............................................................................................................	116
Figure 72 SNMP Trap Station: Create ..................................................................................................	116
Figure 73 SNMP Trap Station: Modify ..................................................................................................	117
Figure 74 RMON Statistics: Overview .................................................................................................	120
Figure 75 RMON Statistics: Port ..........................................................................................................	121
Figure 76 RMON History Control: Overview. ........................................................................................	123
Figure 77 RMON History Control: Modify .............................................................................................	124
Figure 78 RMON History Statistics: Overview. .....................................................................................	125
Figure 79 RMON History Statistics: Control .........................................................................................	126
Figure 80 RMON Alarm: Overview. ......................................................................................................	127
Figure 81 RMON Alarm: Create New Alarm .........................................................................................	128

GS-1524/GS-1548 User’s Guide

		List of Figures
Figure 82 RMON Event: Overview. ...................................................................................................... 129
Figure 83 RMON Event: Create New Event .........................................................................................		131
Figure 84 RMON Event Log: Overview. ............................................................................................... 132
Figure 85 RMON Event Log: Event ......................................................................................................		132
Figure 86 Dynamic ARP ......................................................................................................................		136
Figure 87 Viewing ARP Table Entries ..................................................................................................		137
Figure 88 Viewing ARP Table Entries ..................................................................................................		137
Figure 89	Network Number and Host ID ..............................................................................................	150
Figure 90	Subnetting Example: Before Subnetting ..............................................................................	152
Figure 91	Subnetting Example: After Subnetting .................................................................................	153

GS-1524/GS-1548 User’s Guide

List of Figures

GS-1524/GS-1548 User’s Guide

List of Tables

Table 1 Panel Connections ....................................................................................................................	36
Table 2 LEDs .........................................................................................................................................	38
Table 3 LED Panel .................................................................................................................................	45
Table 4 Navigation Panel Links .............................................................................................................	45
Table 5 System ......................................................................................................................................	49
Table 6 Configure IP Address ................................................................................................................	50
Table 7 Change Password .....................................................................................................................	52
Table 8 Port Status ................................................................................................................................	55
Table 9 Port Configuration .....................................................................................................................	56
Table 10 Statistics ..................................................................................................................................	57
Table 11 Status: Port Details ..................................................................................................................	58
Table 12 VLAN: VLAN Status ................................................................................................................	62
Table 13 VLAN: Create VLAN ...............................................................................................................	63
Table 14 VLAN: Edit VLAN ....................................................................................................................	64
Table 15 Trunking: Configuration ...........................................................................................................	66
Table 16 Mirror Setting ..........................................................................................................................	67
Table 17 QoS Setting .............................................................................................................................	71
Table 18 Port Based QoS ......................................................................................................................	73
Table 19 DSCP Based QoS ...................................................................................................................	75
Table 20 ToS Based QoS ......................................................................................................................	76
Table 21 IP Address Based QoS ...........................................................................................................	77
Table 22 Rate Limit and Storm Control ..................................................................................................	79
Table 23 Rate Limit Configuration .........................................................................................................	80
Table 24 Broadcast Storm Control .........................................................................................................	82
Table 25 L2 Management ......................................................................................................................	83
Table 26 Add a Static MAC Entry ..........................................................................................................	84
Table 27 Display L2 Address Table .......................................................................................................	85
Table 28 Cable Diagnostic .....................................................................................................................	87
Table 29 DoS Attack Summary ..............................................................................................................	89
Table 30 Global Auto DoS Attack Prevention ........................................................................................	90
Table 31 Advanced Auto DoS Attack Prevention ..................................................................................	91
Table 32 Auto VoIP Settings ..................................................................................................................	94
Table 33 Logging ...................................................................................................................................	98
Table 34 Logging: Add Server ...............................................................................................................	98
Table 35 Logs: RAM/Flash ....................................................................................................................	99
Table 36 Searching: RAM/Flash Logs .................................................................................................	102
Table 37 Logs: Search Results ............................................................................................................	102
Table 38 SNMP Commands ................................................................................................................	106

GS-1524/GS-1548 User’s Guide

List of Tables
Table 39 SNMP Traps ..........................................................................................................................	106
Table 40 SNMP EngineID ....................................................................................................................	107
Table 41 SNMP Group .........................................................................................................................	108
Table 42 SNMP Group: Create ............................................................................................................	109
Table 43 SNMP Group: Modify ............................................................................................................	109
Table 44 SNMP User ............................................................................................................................	110
Table 45 SNMP User: Create ...............................................................................................................	111
Table 46 SNMP User: Modify ...............................................................................................................	112
Table 47 SNMP Community .................................................................................................................	112
Table 48 SNMP Community: Create .....................................................................................................	113
Table 49 SNMP Community: Modify .....................................................................................................	114
Table 50 SNMP Notification ..................................................................................................................	115
Table 51 SNMP Trap Station ................................................................................................................	116
Table 52 SNMP Trap Station: Create ....................................................................................................	117
Table 53 SNMP Trap Station: Modify ....................................................................................................	117
Table 54 RMON Statistics: Overview ...................................................................................................	120
Table 55 RMON Statistics: Port ...........................................................................................................	121
Table 56 RMON History Control: Overview. ........................................................................................ 123
Table 57 RMON History Control: Modify ..............................................................................................	124
Table 58 RMON History Statistics: Overview .......................................................................................	125
Table 59 RMON History Statistics: Control ..........................................................................................	126
Table 60 RMON Alarm: Overview ........................................................................................................	127
Table 61 RMON Alarm: Create New Alarm .........................................................................................	129
Table 62 RMON Event: Overview ........................................................................................................	130
Table 63 RMON Event Configuration Screens ....................................................................................	131
Table 64 RMON Event Log: Overview .................................................................................................	132
Table 65 RMON Event Log: Event .......................................................................................................	133
Table 66 ARP Table .............................................................................................................................	136
Table 67 ARP Table .............................................................................................................................	137
Table 68 ARP Table .............................................................................................................................	138
Table 69 Physical and Environmental Specifications ...........................................................................	143
Table 70 General Product Specifications .............................................................................................	144
Table 71 Management Specifications ..................................................................................................	145
Table 72 Firmware Features ................................................................................................................	145
Table 73 Subnet Mask Example ..........................................................................................................	150
Table 74 Subnet Masks .......................................................................................................................	151
Table 75 Maximum Host Numbers ......................................................................................................	151
Table 76 Alternative Subnet Mask Notation .........................................................................................	151
Table 77 Subnet 1 ................................................................................................................................	153
Table 78 Subnet 2 ................................................................................................................................	154
Table 79 Subnet 3 ................................................................................................................................	154
Table 80 Subnet 4 ................................................................................................................................	154
Table 81 Eight Subnets ........................................................................................................................	154

GS-1524/GS-1548 User’s Guide

	List of Tables
Table 82 24-bit Network Number Subnet Planning	.............................................................................. 155
Table 83 16-bit Network Number Subnet Planning ..............................................................................	155

GS-1524/GS-1548 User’s Guide

List of Tables

GS-1524/GS-1548 User’s Guide

PART I

Introduction and

Hardware Overview

Getting to Know Your Switch (27)

Hardware Installation and Connection (31)

Hardware Overview (35)

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 Appendix A on page 141 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.

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

GS-1524/GS-1548 User’s Guide

Chapter 1 Getting to Know Your Switch

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

1.1.3 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.

GS-1524/GS-1548 User’s Guide

ZyXEL Communications GS-1548, GS-1524 User Manual

Chapter 1 Getting to Know Your Switch

Figure 3 High Performance Switched Workgroup Application

1.1.4 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 8 on page 61.

1.1.4.1 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 on the Switch can belong to other VLAN groups too.

Figure 4 Shared Server Using VLAN Example

GS-1524/GS-1548 User’s Guide

Chapter 1 Getting to Know Your Switch

GS-1524/GS-1548 User’s Guide

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