ZyXEL Communications MGS-3712, MGS-3712F User Manual
MGS-3712/MGS-3712F
MetroGigabit Switch
Default Login Details
IP Address http://192.168.1.1
http://192.168.0.1
(Out-of-band
MGMT port)
User Name admin
Password 1234
Firmware Version 3.90
Edition 1, 10/2008
www.zyxel.com
www.zyxel.com
Copyright © 2008
ZyXEL Communications Corporation
About This User's Guide
About This User's Guide
Intended Audience
This manual is intended for people who want to configure the Switch using the
web configurator.
Related Documentation
•Quick Start Guide
The Quick Start Guide is designed to help you get your Switch up and running
right away. It contains informa tion on setting up your network and configuring
for Internet access.
• Web Configurator Online Help
The embedded Web Help contains descriptions of individual screens and
supplementary information.
• Command Reference Guide
The Command Reference Guide explains how to use the Command-Line
Interface (CLI) and CLI commands to configure the Switch.
Note: It is recommended you use the web configurator to configure the Switch.
• Support Disc
Refer to the included CD for support documents.
Documentation Feedback
Send your comments, questions or suggestions to: techwriters@zyxel.com.tw
Thank you!
The Technical Writing Team , ZyXEL Communications Corp.,
6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 30099, Taiwan.
MGS-3712/MGS-3712F User’s Guide
3
About This User's Guide
Need More Help?
More help is available at www.zyx el.com.
• Download Library
Search for the latest product updates and documentation from this link. Read
the Tech Doc Overview to find out how to efficiently use the User Guide, Quick
Start Guide and Command Line Interface Reference Guide in order to better
understand how to use your product.
• Knowledge Base
If you have a specific question about your product, the answer may be here.
This is a collection of answers to previously asked questions about ZyXEL
products.
•Forum
This contains discussions on ZyXEL products. Learn from others who use ZyXEL
products and share your experiences as well.
Customer Support
Should problems arise that cannot be solved by the methods listed above, you
should conta ct 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/web/contact_us.php for contact information. Please
have the following informatio n ready when you contact an office.
• Product model and serial number.
•Warranty Information.
• Date that you received your device.
4
Brief description of the problem and the steps you took to solve it.
MGS-3712/MGS-3712F User’s Guide
Document Conventions
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 MGS-3712 and MGS-3712F models may be referred to as the “Switch”, the
“device”, the “system” or the “product” 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 “ret urn” 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”.
MGS-3712/MGS-3712F User’s Guide
5
Document Conventions
Icons Used in Figures
Figures in this User’s Guide may use the following generic icons. The S witch icon is
not an exact representation of your device.
The Switch Computer Notebook computer
Server DSLAM Firewall
Telephone Router
6
MGS-3712/MGS-3712F User’s Guide
Safety Warnings
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.
• For continued protection against risk of fire replace only with same type and rating of
fuse.
• 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 it 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 device and the power
source.
• 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.
• The length of exposed (bare) power wire should not exceed 7mm.
Your product is marked with this symbol, which is known as the WEEE mark. WEEE
stands for Waste Electronics and Electrical Equipment. It means that used electrical
and electronic products should not be mixed with general waste. Used electrical and
electronic equipment should be treated separately.
MGS-3712/MGS-3712F User’s Guide
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Safety Warnings
8
MGS-3712/MGS-3712F User’s Guide
Contents Overview
Contents Overview
Introduction and Hardware ...................................................................................................21
Getting to Know Your Switch .....................................................................................................23
Hardware Installation and Connection ................................... ................................. ................... 29
Hardware Overview ................................................................................................................... 33
Tutorials ..................................................................................................................................... 45
Basic Configuration ...............................................................................................................55
The Web Configurator ............................................................................................................... 57
Initial Setup Example ................................................................................................................. 67
System Status and Port Statistics .................................... ..........................................................73
Basic Setting ............................................................................................................................. 79
Advanced ................................................................................................................................93
VLAN ......................................................................................................................................... 95
Static MAC Forward Setup .......................................................................................................115
Static Multicast Forward Setup .................................................................................................119
Filtering ..................................... .................................................... ........................................... 123
Spanning Tree Protocol ................... ... ... ... ... .... ........................................................................ 125
Bandwidth Control .... ... ... .... ... ... ... ............................................................................................ 147
Broadcast Storm Control ......................................................................................................... 151
Mirroring .................................................................................................................................. 153
Link Aggregation ................. .....................................................................................................155
Port Authentication ...... ... .... ... ..................................................................................................165
Port Security .................................... ... ... ... ............................................. .... ... ... ... .... ... ..............171
Classifier ................................... .................................................... ........................................... 177
Policy Rule .............................................................................................................................. 185
Queuing Method ...................................................................................................................... 193
VLAN Stacking ......................................................................................................................... 197
Multicast ..................................................................................................................................205
AAA ......................................................................................................................................... 221
IP Source Guard ...................................................................................................................... 235
Loop Guard ..................... .... ... ... ............................................. .... ... ... ... ... .... ... ... ... .... .................261
VLAN Mapping ........................................................................................................................ 265
Layer 2 Protocol Tunneling .............. ... ... ... ... .... ... ... ... .... ... ... ... .................................................. 269
IP Application .......................................................................................................................273
Static Route ............................................................................................................................. 275
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Contents Overview
Differentiated Services ........................................ ... ... .... ... ... ... .... ... ........................................... 279
DHCP ...................................................................................................................................... 287
Management .........................................................................................................................295
Maintenance ............................................................................................................................ 297
Access Control ........................................................................................................................ 305
Diagnostic .................................... ....................................................... ..................................... 329
Syslog ....................................... .................................................... ........................................... 331
Cluster Management .......... ... ................................................ .... ... ... ........................................ 335
MAC Table ............................................................................................................................... 343
ARP Table .............................. ... ... .... ... ... ... ............................................. .... ... ... ... .... ... ..............347
Configure Clone ....................................................................................................................... 349
Troubleshooting & Product Specifications .......................................................................351
Troubleshooting ..................................................... .................................................................. 353
Product Specifications ............................................................................................................. 357
Appendices and Index ........................................................................................................365
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MGS-3712/MGS-3712F User’s Guide
Table of Contents
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........................................................ 21
Chapter 1
Getting to Know Your Switch.................................................................................................23
1.1 Introduction ......................... ... .... ... ... ... ............................................. .... ... ... ... .... ... ... .............23
1.1.1 Backbone Application ............................................................. .... ... ... ... .... ... ................ 23
1.1.2 Bridging Example ......... .... ... ... ... ... .... ... ... ... .... ................................................ ... ... .... ... 24
1.1.3 High Performance Switching Example .......................................................................25
1.1.4 IEEE 802.1Q VLAN Application Examples ................................................................25
1.2 Ways to Manage the Switch ............................ ... .............................................. ... ... ... ... .... ... 26
1.3 Good Habits for Managing the Switch ................................................................................. 26
Chapter 2
Hardware Installation and Connection .................................................................................29
2.1 Installation Scenarios ............................................. ... ... ... .... ... ... ... ... .... ... ... .......................... 29
2.2 Desktop Installation Procedure ...........................................................................................29
2.3 Mounting the Switch on a Rack .......................................................................................... 30
2.3.1 Rack-mounted Installation Requirements .................................................................. 30
2.3.2 Attaching the Mounting Brackets to the Switch ................................ .......................... 31
2.3.3 Mounting the Switch on a Rack .................................................................................. 32
Chapter 3
Hardware Overview.................................................................................................................33
3.1 Front Panel . .... ... ... ... .............................................. ... ... ... .... ... ... ... ....................................... 33
3.1.1 Console Port ....................................................... ... .... ... ... ... ... .... ... ............................. 35
3.1.2 Gigabit Ethernet Ports ........................................ ....................................................... 35
3.1.3 Mini-GBIC Slots ............................................................. ... ... ... .... ... ... ... .......................36
3.1.4 Management Port ...................... ... .... ............................................. ... ... .... ... ... ... .......... 38
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Table of Contents
3.1.5 Power Connector .......................................................... ... ... ....................................... 38
3.1.6 Signal Slot ........... ... ... ... .... ... ............................................. ... ... .... ... ... ... .... ................... 40
3.2 Rear Panel .................... ... ............................................. ... .... ... ... ... ... .................................... 42
3.3 LEDs ............................ ... ............................................. ... .... ... ............................................. 43
3.4 Configuring the Switch ........ ... .... ............................................. ... ... ... .... ... ... .......................... 44
Chapter 4
Tutorials...................................................................................................................................45
4.1 How to Use DHCP Snooping on the Switch ........................................................................ 45
4.2 How to Use DHCP Relay on the Switch .............................................................................. 49
4.2.1 DHCP Relay Tutorial Introduction .............................................................................. 49
4.2.2 Creating a VLAN ........................................................................................................ 50
4.2.3 Configuring DHCP Relay .............................................. ... ... ....................................... 53
4.2.4 Troubleshooting ............................................... ... ... .... ... ... ... ....................................... 54
Part II: Basic Configuration................................................................... 55
Chapter 5
The Web Configurator............................................................................................................57
5.1 Introduction ......................... ... .... ... ... ... ............................................. .... ... ... ... .... ... ... .............57
5.2 System Login ....................................................................................................................57
5.3 The Status Screen .......................................................................................................... 58
5.3.1 Change Your Password .......................................................................................... 62
5.4 Saving Your Configuration ...................................................................................................62
5.5 Switch Lockout .............................................. ... .... ... ... ............................................. .......... 62
5.6 Resetting the Switch ............................... ... ... ... .............................................. ... ... ... ... ....... 63
5.6.1 Reload the Configuration File .................................................................................... 63
5.7 Logging Out of the Web Configurator ................................................................................. 64
5.8 Help ................................................... ... .... ... ... ............................................. .... ... ................65
Chapter 6
Initial Setup Example..............................................................................................................67
6.1 Overview ............. ............................................. ... .... ... ... ... .... ................................................ 67
6.1.1 Creating a VLAN ........................................................................................................ 67
6.1.2 Setting Port VID .................................................. ... .... ... ... ..........................................68
6.2 Configuring Switch Management IP Address ...................................................................... 70
Chapter 7
System Status and Port Statistics.........................................................................................73
7.1 Overview ............. ............................................. ... .... ... ... ... .... ................................................ 73
7.2 Port Status Summary ............................................................................................ ... ....... 73
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7.2.1 Status: Port Details ................................................................................................75
Chapter 8
Basic Setting ..........................................................................................................................79
8.1 Overview ............. ............................................. ... .... ... ... ... .... ................................................ 79
8.2 System Information ........................................................................................................... 80
8.3 General Setup ............................................. ... ... .... ... ... ... .... ... ... .......................................... 82
8.4 Introduction to VLANs ........... .... ... ....................................................................................... 84
8.5 Switch Setup Screen .... ... ... .... ... ....................................................................................... 85
8.6 IP Setup .............................................................................................................................. 87
8.6.1 Management IP Addresses ........................................................................................ 87
8.7 Port Setup ................ .... ... ... ............................................. .... ... ... ... ... .... ................................ 91
Part III: Advanced................................................................................... 93
Chapter 9
VLAN........................................................................................................................................95
9.1 Introduction to IEEE 802.1Q Tagged VLANs ..................................................................... 95
9.1.1 Forwarding Tagged and Untagged Frames ................................................................ 95
9.2 Automatic VLAN Registration ................................ ... ... ... .... ... ... ... ... .................................... 96
9.2.1 GARP . .... ... ... ... .... ... ... ............................................. .... ... ... .......................................... 96
9.2.2 GVRP . .... ... ... ... .... ... ... ............................................. .... ... ... .......................................... 96
9.3 Port VLAN Trunking ........... ............................................. .... ... ... ... ... .... ................................ 97
9.4 Select the VLAN Type .... ... ... .... ... ............................................. ... ... .... ... ... ... .... ... ... ... ..........98
9.5 Static VLAN . .... ... ... ... .............................................. ... ... ... .... ................................................ 98
9.5.1 Static VLAN Status ................ ... ... .... ... ............................................. ... .... ... ... ............. 99
9.5.2 VLAN Details ........................................................................................................... 100
9.5.3 Configure a Static VLAN ...................................................................................... 100
9.5.4 Configure VLAN Port Settings .............................................................................. 103
9.6 Subnet Based VLANs .......................................................................................................104
9.7 Configuring Subnet Based VLAN ..... ................................................. ... ... ........................ 105
9.8 Protocol Based VLANs ...................................... .... ... ........................................................107
9.9 Configuring Protocol Based VLAN ............................................. ... .... ... ... ... .... ... ... ... ........108
9.10 Create an IP-based VLAN Example .................................................................................110
9.11 Port-based VLAN Setup ...............................................................................................111
9.11.1 Configure a Port-based VLAN ................................................................................112
Chapter 10
Static MAC Forward Setup...................................................................................................115
10.1 Overview ...........................................................................................................................115
10.2 Configuring Static MAC Forwarding ............................................................................115
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Table of Contents
Chapter 11
Static Multicast Forward Setup............................................................................................119
11.1 Static Multicast Forwarding Overview ...............................................................................119
11.2 Configuring Static Multicast Forwarding ........................................................................... 120
Chapter 12
Filtering..................................................................................................................................123
12.1 Configure a Filtering Rule .............................................................................................123
Chapter 13
Spanning Tree Protocol........................................................................................................125
13.1 STP/RSTP Overview ...................................................................................................... 125
13.1.1 STP Terminology ................................................................................................... 125
13.1.2 How STP Works .................................................................................................... 126
13.1.3 STP Port States .....................................................................................................127
13.1.4 Multiple RSTP ....................................................................................................... 127
13.1.5 Multiple STP ........................................................................................................... 128
13.2 Spanning Tree Protocol Status Screen ............................................................................ 131
13.3 Spanning Tree Configuration ..........................................................................................132
13.4 Configure Rapid Spanning Tree Protocol ..................................................................... 133
13.5 Rapid Spanning Tree Protocol Status ........................................................................ 135
13.6 Configure Multiple Rapid Spanning Tree Protocol ........................................................ 137
13.7 Multiple Rapid Spanning Tree Protocol Status .......................................................... 139
13.8 Configure Multiple Spanning Tree Protocol .................................................................. 141
13.9 Multiple Spanning Tree Protocol Status .....................................................................144
Chapter 14
Bandwidth Control................................................................................................................147
14.1 Bandwidth Control Overview .......................................................................................... 147
14.1.1 CIR and PIR ........................................................................................................... 147
14.2 Bandwidth Control Setup ................................................................................................. 148
Chapter 15
Broadcast Storm Control.....................................................................................................151
15.1 Broadcast Storm Control Setup ...................................................................................... 151
Chapter 16
Mirroring................................................................................................................................153
16.1 Port Mirroring Setup ....................................................................................................... 153
Chapter 17
Link Aggregation ..................................................................................................................155
17.1 Link Aggregation Overview ........................ ....................... ...................... ....................... . 155
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17.2 Dynamic Link Aggregation ..............................................................................................155
17.2.1 Link Aggregation ID ............................................................................................... 156
17.3 Link Aggregation Status ....................................................... .......................... .................157
17.4 Link Aggregation Setting ................................................................................................ 159
17.5 Link Aggregation Control Protocol ................................................................................ 161
17.6 Static Trunking Example ..................................................................................................162
Chapter 18
Port Authentication...............................................................................................................165
18.1 Port Authentication Overview ......................................................................................... 165
18.1.1 IEEE 802.1x Authentication ................................................................................... 165
18.1.2 MAC Authentication ............................................................................................... 166
18.2 Port Authentication Configuration ............................ ....................................................... .167
18.2.1 Activate IEEE 802.1x Security ........................................................................... 168
18.2.2 Activate MAC Authentication ................................................................................. 169
Chapter 19
Port Security..........................................................................................................................171
19.1 About Port Security .........................................................................................................171
19.2 Port Security Setup .............................. ....................... ....................... ................... ........... 172
19.3 VLAN MAC Address Limit .............................................................................................. 174
Chapter 20
Classifier................................................................................................................................177
20.1 About the Classifier and QoS .......................................................................................... 177
20.2 Configuring the Classifier ...............................................................................................177
20.3 Viewing and Editing Classifier Configuration ................................. .................................. 180
20.4 Classifier Example ...........................................................................................................182
Chapter 21
Policy Rule............................................................................................................................185
21.1 Policy Rules Overview ....................................................................................................185
21.1.1 DiffServ .................................................................................................................. 185
21.1.2 DSCP and Per-Hop Behavior ................................................................................. 185
21.2 Configuring Policy Rules ................................................................................................. 186
21.3 Viewing and Editing Policy Configuration ........................................................................ 189
21.4 Policy Example ................................................................................................................ 191
Chapter 22
Queuing Method....................................................................................................................193
22.1 Queuing Method Overview ............................................................................................. 193
22.1.1 Strictly Priority Queuing .......................................................................................... 193
22.1.2 Weighted Fair Queuing .......................................................................................... 193
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Table of Contents
22.1.3 Weighted Round Robin Scheduling (WRR) ........................................................... 194
22.2 Configuring Queuing ........................................................................................................ 195
Chapter 23
VLAN Stacking......................................................................................................................197
23.1 VLAN Stacking Overview ................................................................................................ 197
23.1.1 VLAN Stacking Example ........................................................................................ 197
23.2 VLAN Stacking Port Roles ................ ... .... ........................................................................ 198
23.3 VLAN Tag Format .......... ..................................................................................................199
23.3.1 Frame Format ........................................................................................................199
23.4 Configuring VLAN Stacking ............................................................................................. 200
23.4.1 Port-based Q-in-Q .................................................................................................. 201
23.4.2 Selective Q-in-Q .................................................................................................... 202
Chapter 24
Multicast ................................................................................................................................205
24.1 Multicast Overview ......................................................................................................... 205
24.1.1 IP Multicast Addresses ........................................................................................... 205
24.1.2 IGMP Filtering ........................................................................................................ 205
24.1.3 IGMP Snooping ..................................................................................................... 206
24.1.4 IGMP Snooping and VLANs ................................................................................... 206
24.2 Multicast Status .............................................................................................................. 206
24.3 Multicast Setting .............. ... .... ... ................................................ ... .... .............................. 207
24.4 IGMP Snooping VLAN .................................................................................................... 210
24.5 IGMP Filtering Profile ..................................................................................................... 212
24.6 MVR Overview ................................................................................................................ 213
24.6.1 Types of MVR Ports ............................................................................................... 214
24.6.2 MVR Modes ........................................................................................................... 214
24.6.3 How MVR Works .................................................................................................... 214
24.7 General MVR Configuration ............................................................................................ 215
24.8 MVR Group Configuration ..............................................................................................217
24.8.1 MVR Configuration Example ... ... .... ... ..................................................................... 219
Chapter 25
AAA........................................................................................................................................221
25.1 Authentication, Authorization and Accounting (AAA) ..................................................... 221
25.1.1 Local User Accounts .................. .... ... ... ... .... ... ................................................ ... .... . 222
25.1.2 RADIUS and TACACS+ ........................................................................................ 222
25.2 AAA Screens ................................................................................................................... 222
25.2.1 RADIUS Server Setup ........................................................................................ 223
25.2.2 TACACS+ Server Setup ..................................................................................... 225
25.2.3 AAA Setup ............................................................................................................. 227
25.2.4 Vendor Specific Attribute ........................................................................................ 230
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25.3 Supported RADIUS Attributes ......................................................................................... 231
25.3.1 Attributes Used for Authentication ............................ ............ .......... .......... ......... ..... 232
25.3.2 Attributes Used for Accounting ............................................................................... 233
Chapter 26
IP Source Guard ....................................................................................................................235
26.1 IP Source Guard Overview .............................................................................................. 235
26.1.1 DHCP Snooping Overview ..................................................................................... 236
26.1.2 ARP Inspection Overview ...................................................................................... 238
26.2 IP Source Guard .............................................................................................................. 239
26.3 IP Source Guard Static Binding ....................................................................................... 240
26.4 DHCP Snooping .............................................................................................................. 243
26.5 DHCP Snooping Configure ...................... ........................................................................ 246
26.5.1 DHCP Snooping Port Configure ............................................................................. 248
26.5.2 DHCP Snooping VLAN Configure .......................................................................... 249
26.6 ARP Inspection Status .....................................................................................................251
26.6.1 ARP Inspection VLAN Status .................................................................................252
26.6.2 ARP Inspection Log Status .................................................................................... 253
26.7 ARP Inspection Configure ............................................................................................... 254
26.7.1 ARP Inspection Port Configure .............................................................................. 256
26.7.2 ARP Inspection VLAN Configure ........................................................................... 258
Chapter 27
Loop Guard............................................................................................................................261
27.1 Loop Guard Overview .....................................................................................................261
27.2 Loop Guard Setup ...........................................................................................................263
Chapter 28
VLAN Mapping ......................................................................................................................265
28.1 VLAN Mapping Overview ............................................................................................... 265
28.1.1 VLAN Mapping Example ........................................................................................ 265
28.2 Enabling VLAN Mapping ................................................................................................. 266
28.3 Configuring VLAN Mapping ............................................................................................. 267
Chapter 29
Layer 2 Protocol Tunneling..................................................................................................269
29.1 Layer 2 Protocol Tunneling Overview ............................................................................. 269
29.1.1 Layer 2 Protocol Tunneling Mode .......................................................................... 270
29.2 Configuring Layer 2 Protocol Tunneling .................................................................. ... .... . 271
Part IV: IP Application.......................................................................... 273
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Table of Contents
Chapter 30
Static Route...........................................................................................................................275
30.1 Static Routing Overview .................................................................................................. 275
30.2 Configuring Static Routing ............................................................................................... 276
Chapter 31
Differentiated Services.........................................................................................................279
31.1 DiffServ Overview ...........................................................................................................279
31.1.1 DSCP and Per-Hop Behavior ................................................................................ 279
31.1.2 DiffServ Network Example .................................................................................... 280
31.2 Two Rate Three Color Marker Traffic Policing ................................................................. 280
31.2.1 TRTCM-Color-blind Mode ...................................................................................... 281
31.2.2 TRTCM-Color-aware Mode ....................................................................................282
31.3 Activating DiffServ .......................................................................................................... 282
31.3.1 Configuring 2-Rate 3 Color Marker Settings ......................................................... 284
31.4 DSCP-to-IEEE 802.1p Priority Settings .......................................................................... 285
31.4.1 Configuring DSCP Settings ............................ .......................................... .............. 286
Chapter 32
DHCP......................................................................................................................................287
32.1 DHCP Overview ............................................................................................................. 287
32.1.1 DHCP Modes ........................................................................................................287
32.1.2 DHCP Configuration Options ................................................................................. 287
32.2 DHCP Status ................................................................................................................... 288
32.3 DHCP Relay ....... ... .... ... ... ... .... ... ... ... ... ............................................................................ 288
32.3.1 DHCP Relay Agent Information ............................................................................. 288
32.3.2 Configuring DHCP Global Relay ............................................................................ 289
32.3.3 Global DHCP Relay Configuration Example .......................................................... 290
32.4 Configuring DHCP VLAN Settings ................................................................................ 291
32.4.1 Example: DHCP Relay for Two VLANs .................................................................. 292
Part V: Management............................................................................. 295
Chapter 33
Maintenance..........................................................................................................................297
33.1 The Maintenance Screen ...................................... ... ... .... ... ... ........................................ 297
33.2 Load Factory Default ...................................................................................................... 298
33.3 Save Configuration .......................................................................................................... 298
33.4 Reboot System ................................................................................................................ 299
33.5 Firmware Upgrade ........................................................................................................ 299
33.6 Restore a Configuration File .........................................................................................300
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33.7 Backup a Configuration File ......................................................................................... 301
33.8 FTP Command Line ........................................................................................................ 301
33.8.1 Filename Conventions .......................................................................................... 301
33.8.2 FTP Command Line Procedure ............................................................................ 302
33.8.3 GUI-based FTP Clients .......................................................................................... 303
33.8.4 FTP Restrictions .................................................................................................... 303
Chapter 34
Access Control......................................................................................................................305
34.1 Access Control Overview ............................................................................................ 305
34.2 The Access Control Main Screen .................................................................................... 305
34.3 About SNMP .................................................................................................................. 306
34.3.1 SNMP v3 and Security ........................................................................................... 307
34.3.2 Supported MIBs .................................................................................................... 307
34.3.3 SNMP Traps .......................................................................................................... 308
34.3.4 Configuring SNMP ................................................................................................315
34.3.5 Configuring SNMP Trap Group ...........................................................................318
34.3.6 Setting Up Login Accounts .................................................................................319
34.4 SSH Overview ................................................................................................................. 320
34.5 How SSH works ................ ... ............................................................................................ 321
34.6 SSH Implementation on the Switch ................................................................................. 322
34.6.1 Requirements for Using SSH .................................................................................322
34.7 Introduction to HTTPS .....................................................................................................322
34.8 HTTPS Example .............................................................................................................. 323
34.8.1 Internet Explorer Warning Messages ..................................................................... 323
34.8.2 Netscape Navigator Warning Messages ................................................................ 324
34.8.3 The Main Screen .................................................................................................... 326
34.9 Service Port Access Control ......................................................................................... 326
34.10 Remote Management ............................................................................................... 327
Chapter 35
Diagnostic..............................................................................................................................329
35.1 Diagnostic ....................................................................................................................... 329
Chapter 36
Syslog....................................................................................................................................331
36.1 Syslog Overview .............................................................................................................. 331
36.2 Syslog Setup .................................................................................................................. 332
36.3 Syslog Server Setup ....................................................................................................... 333
Chapter 37
Cluster Management.............................................................................................................335
37.1 Cluster Management Status Overview ........................................................................... 335
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Table of Contents
37.2 Cluster Management Status ........................................................................................... 336
37.2.1 Cluster Member Switch Management ................................................................... 337
37.3 Clustering Management Configuration .......................................................................... 340
Chapter 38
MAC Table..............................................................................................................................343
38.1 MAC Table Overview ...................................................................................................... 343
38.2 Viewing the MAC Table ...................................................................................................344
Chapter 39
ARP Table..............................................................................................................................347
39.1 ARP Table Overview .......................................................................................................347
39.1.1 How ARP Works ......................................................... ... ... ... .... ... ... ........................ 347
39.2 Viewing the ARP Table ................................................................................................... 348
Chapter 40
Configure Clone....................................................................................................................349
40.1 Configure Clone ..............................................................................................................349
Part VI: Troubleshooting & Product Specifications.......................... 351
Chapter 41
Troubleshooting....................................................................................................................353
41.1 Power, Hardware Connections, and LEDs .............................. ... ... .... ... ... ... .... ... ... ... ........353
41.2 Switch Access and Login .................................................................................................354
41.3 Switch Configuration ........................................................................................................356
Chapter 42
Product Specifications.........................................................................................................357
Part VII: Appendices and Index......................................................... 365
Appendix A Common Services.............................................................................................367
Appendix B Legal Information..............................................................................................371
Index.......................................................................................................................................375
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MGS-3712/MGS-3712F User’s Guide
PART I
Introduction and
Hardware
Getting to Know Your Switch (23)
Hardware Installation and Connection
(29)
Hardware Overview (33)
Tutorials (45)
21
22
CHAPTER 1
Getting to Know Your Switch
This chapter introduces the main features and applications of the Switch.
1.1 Introduction
The MGS-3712 and MGS-3712F are layer 2 stand-alone Gigabit Ethernet (GbE)
switches.
The MGS-3712 has four GbE dual personality interfaces with each interface
comprising one mini-GBIC slot and one 100/1000 Mbps RJ-45 port, with either
port or slot active at a time. In addition, the MGS-3712 has 8 100/1000 Mbps RJ45 ports.
The MGS-3712F also has four GbE dual personality interfaces with each interface
comprising one mini-GBIC slot and one 100/1000 Mbps RJ-45 port, with either
port or slot active at a time. In addition, the MGS-3712F has 8 mini-GBIC slots.
With its built-in web configurat or, managing and configuring the Switch is easy. In
addition, the Switch can also be managed via Telnet, any terminal emulator
program on the console port, or third-party SNMP management.
This section shows a few examples of using the Switch in various network
environments.
See Chapter 42 on page 357 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.
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Chapter 1 Getting to Know Your Switch
In this example, all computers can share high-speed applications on the server. T o
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
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Chapter 1 Getting to Know Your Switch
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 Tr ansmission 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
1.1.4 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 9 on page 95.
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 recabling.
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Chapter 1 Getting to Know Your Switch
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
1.2 Ways to Manage the Switch
Use any of the following methods to manage the Switch.
• Web Co nfigurator. This is recommended for ev eryday management of the S witch
using a (supported) web browser. See Chapter 5 on page 57.
• Command Line Interface. Line commands offer an alternative to the web
configurator and in some cases are necessary to configure advanced features.
See the CLI Reference Guide.
• FTP. Use FTP for firmware upgrades and configuration backup/restore. See
Section 33.8 on page 301.
• SNMP. The Switch can be monitored by an SNMP manager. See Section 34.3 on
page 306.
• Cluster Management. Cluster Management allows you to manage multiple
switches through one switch, called the cluster manager. See Chapter 37 on
page 335.
1.3 Good Habits for Managing the Switch
26
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.
MGS-3712/MGS-3712F User’s Guide
Chapter 1 Getting to Know Your Switch
• 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 y our password, you will hav e 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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Chapter 1 Getting to Know Your Switch
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MGS-3712/MGS-3712F User’s Guide
CHAPTER 2
Hardware Installation and
Connection
This chapter shows you how to install and connect the Switch.
2.1 Installation Scenarios
The Switch can be placed on a desktop or rack-mounted on a standard EIA rack.
Use the rubber feet in a desktop installation and the brackets in a rack-mounted
installation.
Note: For proper ventilation, allow at least 4 inches (10 cm) of clearance at the front
and 3.4 inches (8 cm) at the back of the Switch. This is especially important for
enclosed rack installations.
2.2 Desktop Installation Procedure
1 Make sure the Switch is clean and dry.
2 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.
3 Make sure there is enough clearance around the Switch to allow air circulation and
the attachment of cables and the power cord.
4 Remove the adhesive backing from the rubber feet.
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Chapter 2 Hardware Installation and Connection
5 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.
Figure 5 Attaching Rubber Feet
Note: Do NOT block the ventilation holes. Leave space between devices when
stacking.
2.3 Mounting the Switch on a Rack
The Switch can be mounted on an EIA standard size, 19-inch rack or in a wiring
closet with other equipment. Follow the steps below to mount your Switch on a
standard EIA rack using a rack-mounting kit.
2.3.1 Rack-mounted Installation Requirements
• Two mounting brackets.
• Eight M3 flat head screws and a #2 Philips screwdriver.
• Four M5 flat head screws and a #2 Philips screwdriver.
Failure to use the proper screws may damage the unit.
2.3.1.1 Precautions
• Make sure the rack will safely sup port the combined weight of all the equipment
it contains.
• Make sure the position of the Switch does not make the rack unstable or topheavy. Tak e all necessary precautions to anchor the rack securely before
installing the unit.
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