LevelOne GEL-5261 User manual

GEL-5261
52-Port L2 Managed Gigabit Switch
User Manual
V1.0
Digital Data Communications Asia Co., Ltd.
http://www.level1.com

User Manual
GEL-5261
L2 Managed Gigabit Ethernet Switch with
48 10/100/1000BASE-T (RJ-45) Ports
and 4 Gigabit SFP Ports
E062017/ST-R01

How to Use This Guide
–3 –
This guide includes detailed information on the switch software, including how to
operate and use the management functions of the switch. To deploy this switch
effectively and ensure trouble-free operation, you should first read the relevant
sections in this guide so that you are familiar with all of its software features.
Who ShouldRead
this Guide?
This guide is for network administrators who are responsible for operating and
maintaining network equipment. The guide assumes a basic working knowledge of
LANs (Local Area Networks), the Internet Protocol (IP), and Simple Network
Management Protocol (SNMP).
How this Guide
is Organized
This guide provides detailed information about the switch’s key features. It also
describes the switch’s web browser interface. For information on the command line
interface refer to the CLI Reference Guide.
The guide includes these sections:
◆ Section I “Getting Started” —Includes an introduction to switch management,
and the basic settings required to access the management interface.
◆ Section II “Web Configuration” —Includes all management options available
through the web browser interface.
◆ Section III “Appendices” —Includes information on troubleshooting switch
management access.
Related
Documentation
This guide focuses on switch software configuration through the web browser.
For information on how to manage the switch through the command line interface,
see the following guide:
CLI Reference Guide
Note: For a description of how to initialize the switch for management access via
the CLI, web interface or SNMP, refer to “Initial Switch Configuration” in the CLI
Reference Guide.

How to Use ThisGuide
–4 –
For information on how to install the switch, see the following guide:
Quick Start Guide
For all safety information and regulatory statements, see the following documents:
Quick Start Guide
Safety and Regulatory Information
Conventions The following conventions are used throughout this guide to show information:
Note: Emphasizes important information or calls your attention to related features
or instructions.
Revision History This section summarizes the changes in each revision of this guide.
Revision
Date
Change Description
v1.1.10a.171
01/2017
Initial release

–5 –
Contents
How to Use This Guide
3
Contents
5
Figures
15
Tables
27
Section I
Getting Started
29
1
Introduction
31
Key Features
31
Description of Software Features
33
Address Resolution Protocol
37
System Defaults
38
Section II
Web Configuration
41
2
Using the Web Interface
43
Connecting to the Web Interface
43
Navigating the Web Browser Interface
44
Dashboard
44
Configuration Options
46
Panel Display
46
Main Menu
47
3
Basic Management Tasks
63
Displaying System Information
64
Displaying Hardware/Software Versions
65
Configuring Support for Jumbo Frames
66
Displaying Bridge Extension Capabilities
67

–6 –
Contents
Managing System Files 69
Copying Files via FTP/SFTP/TFTP or HTTP 69
Saving the Running Configuration to a Local File 71
Setting the Start-up File 72
Showing System Files 73
Automatic Operation Code Upgrade 73
Setting the System Clock 77
Setting the Time Manually 78
Setting the SNTP Polling Interval 79
Configuring NTP 79
Configuring Time Servers 80
Setting the Time Zone 84
Configuring Summer Time 85
Configuring the Console Port 87
Configuring Telnet Settings 89
Displaying CPU Utilization 90
Configuring CPU Guard 91
Displaying Memory Utilization 92
Resetting the System 93
4 Interface Configuration 97
Port Configuration 98
Configuring by Port List 98
Configuring by Port Range 100
Displaying Connection Status 101
Showing Port or Trunk Statistics 102
Displaying Statistical History 106
Displaying Transceiver Data 110
Configuring Transceiver Thresholds 111
Performing Cable Diagnostics 113
Trunk Configuration 115
Configuring a Static Trunk 116
Configuring a Dynamic Trunk 119
Displaying LACP Port Counters 125
Displaying LACP Settings and Status for the Local Side 126

–7 –
Contents
Displaying LACP Settings and Status for the Remote Side 128
Configuring Load Balancing 129
Saving Power 131
Configuring Local Port Mirroring 132
Configuring Remote Port Mirroring 134
Sampling Traffic Flows 138
Configuring sFlow Receiver Settings 139
Configuring an sFlow Polling Instance 141
Traffic Segmentation 143
Enabling Traffic Segmentation 143
Configuring Uplink and Downlink Ports 144
5 VLAN Configuration 147
IEEE 802.1Q VLANs 147
Configuring VLAN Groups 149
Adding Static Members to VLANs 152
IEEE 802.1Q Tunneling 156
Enabling QinQ Tunneling on the Switch 160
Creating CVLAN to SPVLAN Mapping Entries 161
Adding an Interface to a QinQ Tunnel 163
Protocol VLANs 164
Configuring Protocol VLAN Groups 165
Mapping Protocol Groups to Interfaces 166
Configuring MAC-based VLANs 168
6 Address Table Settings 171
Displaying the Dynamic Address Table 171
Clearing the Dynamic Address Table 172
Changing the Aging Time 173
Configuring MAC Address Learning 174
Setting Static Addresses 176
Issuing MAC Address Traps 178
7 Spanning Tree Algorithm 181
Overview 181
Configuring Loopback Detection 183

–8 –
Contents
Configuring Global Settings for STA 185
Displaying Global Settings for STA 190
Configuring Interface Settings for STA 191
Displaying Interface Settings for STA 196
Configuring Multiple Spanning Trees 199
Configuring Interface Settings for MSTP 203
8 Congestion Control 205
Rate Limiting 205
Storm Control 206
9 Class of Service 209
Layer 2 Queue Settings 209
Setting the Default Priority for Interfaces 209
Selecting the Queue Mode 210
Layer 3/4 Priority Settings 213
Setting Priority Processing to DSCP or CoS 214
Mapping CoS Priorities to Per-hop Behavior 215
Mapping DSCP Priorities to Per-hop Behavior 216
10 Quality of Service 219
Overview 219
Configuring a Class Map 220
Creating QoS Policies 223
Attaching a Policy Map to a Port 226
11 VoIP Traffic Configuration 229
Overview 229
Configuring VoIP Traffic 230
Configuring Telephony OUI 231
Configuring VoIP Traffic Ports 232
12 Security Measures 235
AAA (Authentication, Authorization and Accounting) 236
Configuring Local/Remote Logon Authentication 237
Configuring Remote Logon Authentication Servers 238
Configuring AAA Accounting 243

–9 –
Contents
Configuring AAA Authorization 249
Configuring User Accounts 253
Web Authentication 255
Configuring Global Settings for Web Authentication 255
Configuring Interface Settings for Web Authentication 256
Network Access (MAC Address Authentication) 257
Configuring Global Settings forNetwork Access 260
Configuring Network Access for Ports 261
Configuring a MAC Address Filter 263
Displaying Secure MAC Address Information 264
Configuring HTTPS 266
Configuring Global Settings for HTTPS 266
Replacing the Default Secure-site Certificate 268
Configuring the Secure Shell 270
Configuring the SSH Server 272
Generating the Host Key Pair 273
Importing User Public Keys 275
Access Control Lists 277
Showing TCAM Utilization 278
Setting the ACL Name and Type 280
Configuring a Standard IPv4 ACL 282
Configuring an Extended IPv4 ACL 283
Configuring a Standard IPv6 ACL 286
Configuring an Extended IPv6 ACL 287
Configuring a MAC ACL 290
Configuring an ARP ACL 292
Binding a Port to an Access Control List 293
Showing ACL Hardware Counters 294
Filtering IP Addresses for Management Access 296
Configuring Port Security 298
Configuring 802.1X Port Authentication 300
Configuring 802.1X Global Settings 302
Configuring Port Authenticator Settings for 802.1X 302
Displaying 802.1X Statistics 306
DoS Protection 308

–10 –
Contents
DHCP Snooping 310
DHCP Snooping Global Configuration 313
DHCP Snooping VLAN Configuration 315
Configuring Ports for DHCP Snooping 316
Displaying DHCP Snooping Binding Information 317
IPv4 Source Guard 318
Configuring Ports for IPv4 Source Guard 318
Configuring Static Bindings for IPv4 Source Guard 320
Displaying Information for Dynamic IPv4 Source Guard Bindings 323
ARP Inspection 324
Configuring Global Settings for ARP Inspection 325
Configuring VLAN Settings for ARP Inspection 327
Configuring Interface Settings for ARP Inspection 329
Displaying ARP Inspection Statistics 330
Displaying the ARP Inspection Log 331
13 Basic Administration Protocols 333
Configuring Event Logging 334
System Log Configuration 334
Remote Log Configuration 336
Sending Simple Mail Transfer Protocol Alerts 337
Link Layer Discovery Protocol 339
Setting LLDP Timing Attributes 339
Configuring LLDP Interface Attributes 341
Configuring LLDP Interface Civic-Address 345
Displaying LLDP Local Device Information 347
Displaying LLDP Remote Device Information 351
Displaying Device Statistics 359
Simple Network Management Protocol 362
Configuring Global Settings for SNMP 364
Setting the Local Engine ID 365
Specifying a Remote Engine ID 366
Setting SNMPv3 Views 367
Configuring SNMPv3 Groups 370
Setting Community Access Strings 375

–11 –
Contents
Configuring Local SNMPv3 Users 376
Configuring Remote SNMPv3 Users 379
Specifying Trap Managers 382
Creating SNMP Notification Logs 386
Showing SNMP Statistics 388
Remote Monitoring 390
Configuring RMON Alarms 390
Configuring RMON Events 393
Configuring RMON History Samples 395
Configuring RMON Statistical Samples 398
Switch Clustering 400
Configuring General Settings for Clusters 401
Cluster Member Configuration 402
Managing Cluster Members 404
Setting a Time Range 405
Ethernet Ring Protection Switching 408
ERPS Global Configuration 412
ERPS Ring Configuration 412
ERPS Forced and Manual Mode Operations 428
LBD Configuration 432
Configuring Global Settings for LBD 433
Configuring Interface Settings for LBD 435
14 Multicast Filtering 437
Overview 437
Layer 2 IGMP (Snooping and Query for IPv4) 438
Configuring IGMP Snooping and Query Parameters 440
Specifying Static Interfaces for a Multicast Router 444
Assigning Interfaces to Multicast Services 446
Setting IGMP Snooping Status per Interface 448
Filtering IGMP Query Packets and Multicast Data 454
Displaying Multicast Groups Discovered by IGMP Snooping 455
Displaying IGMP Snooping Statistics 456
Filtering and Throttling IGMP Groups 460
Enabling IGMP Filtering and Throttling 460

–12 –
Contents
Configuring IGMP Filter Profiles 461
Configuring IGMP Filtering and Throttling for Interfaces 463
MLD Snooping (Snooping and Queryfor IPv6) 465
Configuring MLD Snooping and Query Parameters 465
Setting Immediate Leave Status for MLD Snooping per Interface 467
Specifying Static Interfaces for an IPv6 Multicast Router 468
Assigning Interfaces to IPv6 Multicast Services 470
Showing MLD Snooping Groups andSource List 472
Displaying MLD Snooping Statistics 473
Filtering and Throttling MLD Groups 481
Enabling MLD Filtering and Throttling 482
Configuring MLD Filter Profiles 482
Configuring MLD Filtering and Throttling for Interfaces 485
Filtering MLD Query Packets on an Interface 486
15 IP Tools 489
Using the Ping Function 489
Using the Trace Route Function 491
Address Resolution Protocol 492
Basic ARP Configuration 493
Configuring Static ARP Addresses 494
Displaying Dynamic or Local ARP Entries 496
Displaying ARP Statistics 497
16 IP Configuration 499
Setting the Switch’s IP Address (IP Version 4) 499
Configuring IPv4 Interface Settings 499
Setting the Switch’s IP Address (IP Version 6) 503
Configuring the IPv6 Default Gateway 503
Configuring IPv6 Interface Settings 504
Configuring an IPv6 Address 509
Showing IPv6 Addresses 511
Showing the IPv6 Neighbor Cache 513
Showing IPv6 Statistics 514
Showing the MTU for Responding Destinations 520

–13 –
Contents
17
General IP Routing
521
Overview
521
Initial Configuration
521
IP Routing and Switching
522
Routing Path Management
523
Routing Protocols
523
Configuring Static Routes
524
Displaying the Routing Table
525
18
IP Services
527
Domain Name Service
527
Configuring General DNS Service Parameters
527
Configuring a List of Domain Names
528
Configuring a List of Name Servers
530
Configuring Static DNS Host to Address Entries
531
Displaying the DNS Cache
532
Multicast Domain Name Service
533
Dynamic Host Configuration Protocol
534
Specifying a DHCP Client Identifier
535
Configuring DHCP Relay Service
536
Enabling DHCP Dynamic Provision
538
Section III
Appendices
539
A
Software Specifications
541
Software Features
541
Management Features
542
Standards
543
Management Information Bases
543
B
Troubleshooting
545
Problems Accessing the Management Interface
545
Using System Logs
546
C
License Information
547
The GNU General Public License
547

–14 –
Contents
Glossary 551
Index 559

–15 –
Figures
Figure 1:
Dashboard
45
Figure 2:
System Information
64
Figure 3:
General Switch Information
66
Figure 4:
Configuring Support for Jumbo Frames
67
Figure 5:
Displaying Bridge Extension Configuration
68
Figure 6:
Copy Firmware
71
Figure 7:
Saving the Running Configuration
72
Figure 8:
Setting Start-Up Files
72
Figure 9:
Displaying System Files
73
Figure 10:
Configuring Automatic Code Upgrade
77
Figure 11:
Manually Setting the System Clock
78
Figure 12:
Setting the Polling Interval for SNTP
79
Figure 13:
Configuring NTP
80
Figure 14:
Specifying SNTP Time Servers
81
Figure 15:
Adding an NTP Time Server
82
Figure 16:
Showing the NTP Time Server List
82
Figure 17:
Adding an NTP Authentication Key
83
Figure 18:
Showing the NTP Authentication Key List
84
Figure 19:
Setting the Time Zone
85
Figure 20:
Configuring Summer Time
87
Figure 21:
Console Port Settings
88
Figure 22:
Telnet Connection Settings
90
Figure 23:
Displaying CPU Utilization
91
Figure 24:
Configuring CPU Guard
92
Figure 25:
Displaying Memory Utilization
93
Figure 26:
Restarting the Switch (Immediately)
95
Figure 27:
Restarting the Switch (In)
95
Figure 28:
Restarting the Switch (At)
96
Figure 29:
Restarting the Switch (Regularly)
96

–16 –
Figures
Figure 30:
Configuring Connections by Port List
100
Figure 31:
Configuring Connections by Port Range
101
Figure 32:
Displaying Port Information
102
Figure 33:
Showing Port Statistics (Table)
105
Figure 34:
Showing Port Statistics (Chart)
106
Figure 35:
Configuring a History Sample
108
Figure 36:
Showing Entries for History Sampling
108
Figure 37:
Showing Status of Statistical History Sample
109
Figure 38:
Showing Current Statistics for a History Sample
109
Figure 39:
Showing Ingress Statistics for a History Sample
110
Figure 40:
Displaying Transceiver Data
111
Figure 41:
Configuring Transceiver Thresholds
113
Figure 42:
Performing Cable Tests
115
Figure 43:
Configuring Static Trunks
116
Figure 44:
Creating Static Trunks
117
Figure 45:
Adding Static Trunks Members
118
Figure 46:
Configuring Connection Parameters for a Static Trunk
118
Figure 47:
Showing Information for Static Trunks
119
Figure 48:
Configuring Dynamic Trunks
119
Figure 49:
Configuring the LACP Aggregator Admin Key
122
Figure 50:
Enabling LACP on a Port
123
Figure 51:
Configuring LACP Parameters on a Port
123
Figure 52:
Showing Members of a Dynamic Trunk
124
Figure 53:
Configuring Connection Settings for a Dynamic Trunk
124
Figure 54:
Showing Connection Parameters for Dynamic Trunks
125
Figure 55:
Displaying LACP Port Counters
126
Figure 56:
Displaying LACP Port Internal Information
127
Figure 57:
Displaying LACP Port Remote Information
129
Figure 58:
Configuring Load Balancing
130
Figure 59:
Enabling Power Savings
132
Figure 60:
Configuring Local Port Mirroring
132
Figure 61:
Configuring Local Port Mirroring
133
Figure 62:
Displaying Local Port Mirror Sessions
134
Figure 63:
Configuring Remote Port Mirroring
134
Figure 64:
Configuring Remote Port Mirroring (Source)
137

–17 –
Figures
Figure 65:
Configuring Remote Port Mirroring (Intermediate)
138
Figure 66:
Configuring Remote Port Mirroring (Destination)
138
Figure 67:
Configuring an sFlow Receiver
140
Figure 68:
Showing sFlow Receivers
141
Figure 69:
Configuring an sFlow Instance
142
Figure 70:
Showing sFlow Instances
142
Figure 71:
Enabling Traffic Segmentation
144
Figure 72:
Configuring Members for Traffic Segmentation
145
Figure 73:
Showing Traffic Segmentation Members
146
Figure 74:
VLAN Compliant and VLAN Non-compliant Devices
148
Figure 75:
Creating Static VLANs
151
Figure 76:
Modifying Settings for Static VLANs
151
Figure 77:
Showing Static VLANs
152
Figure 78:
Configuring Static Members by VLAN Index
154
Figure 79:
Configuring Static VLAN Members by Interface
155
Figure 80:
Configuring Static VLAN Members by Interface Range
156
Figure 81:
QinQ Operational Concept
157
Figure 82:
Enabling QinQ Tunneling
161
Figure 83:
Configuring CVLAN to SPVLAN Mapping Entries
162
Figure 84:
Showing CVLAN to SPVLAN Mapping Entries
162
Figure 85:
Adding an Interface to a QinQ Tunnel
164
Figure 86:
Configuring Protocol VLANs
166
Figure 87:
Displaying Protocol VLANs
166
Figure 88:
Assigning Interfaces to Protocol VLANs
168
Figure 89:
Showing the Interface to Protocol Group Mapping
168
Figure 90:
Configuring MAC-Based VLANs
170
Figure 91:
Showing MAC-Based VLANs
170
Figure 92:
Displaying the Dynamic MAC Address Table
172
Figure 93:
Clearing Entries in the Dynamic MAC Address Table
173
Figure 94:
Setting the Address Aging Time
174
Figure 95:
Configuring MAC Address Learning
175
Figure 96:
Configuring Static MAC Addresses
177
Figure 97:
Displaying Static MAC Addresses
177
Figure 98:
Issuing MAC Address Traps (Global Configuration)
178
Figure 99:
Issuing MAC Address Traps (Interface Configuration)
179

–18 –
Figures
Figure 100:
STP Root Ports and Designated Ports
182
Figure 101:
MSTP Region, Internal Spanning Tree, Multiple Spanning Tree
182
Figure 102:
Spanning Tree –Common Internal, Common, Internal
183
Figure 103:
Configuring Port Loopback Detection
185
Figure 104:
Configuring Global Settings for STA (STP)
189
Figure 105:
Configuring Global Settings for STA (RSTP)
189
Figure 106:
Configuring Global Settings for STA (MSTP)
190
Figure 107:
Displaying Global Settings for STA
191
Figure 108:
Determining the Root Port
193
Figure 109:
Configuring Interface Settings for STA
196
Figure 110:
STA Port Roles
197
Figure 111:
Displaying Interface Settings for STA
198
Figure 112:
Creating an MST Instance
200
Figure 113:
Displaying MST Instances
200
Figure 114:
Modifying the Priority for an MST Instance
201
Figure 115:
Displaying Global Settings for an MST Instance
201
Figure 116:
Adding a VLAN to an MST Instance
202
Figure 117:
Displaying Members of an MST Instance
202
Figure 118:
Configuring MSTP Interface Settings
204
Figure 119:
Displaying MSTP Interface Settings
204
Figure 120:
Configuring Rate Limits
206
Figure 121:
Configuring Storm Control
208
Figure 122:
Setting the Default Port Priority
210
Figure 123:
Setting the Queue Mode (Strict)
212
Figure 124:
Setting the Queue Mode (WRR)
212
Figure 125:
Setting the Queue Mode (Strict and WRR)
213
Figure 126:
Setting the Trust Mode
215
Figure 127:
Configuring CoS to Queue Mapping
216
Figure 128:
Configuring DSCP to Queue Mapping
218
Figure 129:
Configuring a Class Map
221
Figure 130:
Showing Class Maps
222
Figure 131:
Adding Rules to a Class Map
222
Figure 132:
Showing the Rules for a Class Map
223
Figure 133:
Configuring a Policy Map
225
Figure 134:
Showing Policy Maps
225

–19 –
Figures
Figure 135:
Adding Rules to a Policy Map
226
Figure 136:
Showing the Rules for a Policy Map
226
Figure 137:
Attaching a Policy Map to a Port
227
Figure 138:
Configuring a Voice VLAN
231
Figure 139:
Configuring an OUI Telephony List
232
Figure 140:
Showing an OUI Telephony List
232
Figure 141:
Configuring Port Settings for a Voice VLAN
234
Figure 142:
Configuring the Authentication Sequence
238
Figure 143:
Authentication Server Operation
238
Figure 144:
Configuring Remote Authentication Server (RADIUS)
241
Figure 145:
Configuring Remote Authentication Server (TACACS+)
242
Figure 146:
Configuring AAA Server Groups
242
Figure 147:
Showing AAA Server Groups
243
Figure 148:
Configuring Global Settings for AAA Accounting
245
Figure 149:
Configuring AAA Accounting Methods
246
Figure 150:
Showing AAA Accounting Methods
247
Figure 151:
Configuring AAA Accounting Service for 802.1X Service
247
Figure 152:
Configuring AAA Accounting Service for Command Service
248
Figure 153:
Configuring AAA Accounting Service for Exec Service
248
Figure 154:
Displaying a Summary of Applied AAA Accounting Methods
249
Figure 155:
Displaying Statistics for AAA Accounting Sessions
249
Figure 156:
Configuring AAA Authorization Methods
251
Figure 157:
Showing AAA Authorization Methods
251
Figure 158:
Configuring AAA Authorization Methods for Exec Service
252
Figure 159:
Displaying the Applied AAA Authorization Method
252
Figure 160:
Configuring User Accounts
254
Figure 161:
Showing User Accounts
255
Figure 162:
Configuring Global Settings for Web Authentication
256
Figure 163:
Configuring Interface Settings for Web Authentication
257
Figure 164:
Configuring Global Settings for Network Access
261
Figure 165:
Configuring Interface Settings for Network Access
263
Figure 166:
Configuring a MAC Address Filter for Network Access
264
Figure 167:
Showing the MAC Address Filter Table for Network Access
264
Figure 168:
Showing Addresses Authenticated for Network Access
266
Figure 169:
Configuring HTTPS
268

–20 –
Figures
Figure 170:
Downloading the Secure-Site Certificate
269
Figure 171:
Configuring the SSH Server
273
Figure 172:
Generating the SSH Host Key Pair
274
Figure 173:
Showing the SSH Host Key Pair
275
Figure 174:
Copying the SSH User’s Public Key
276
Figure 175:
Showing the SSH User’s Public Key
277
Figure 176:
Showing TCAM Utilization
280
Figure 177:
Creating an ACL
281
Figure 178:
Showing a List of ACLs
282
Figure 179:
Configuring a Standard IPv4 ACL
283
Figure 180:
Configuring an Extended IPv4 ACL
286
Figure 181:
Configuring a Standard IPv6 ACL
287
Figure 182:
Configuring an Extended IPv6 ACL
289
Figure 183:
Configuring a MAC ACL
291
Figure 184:
Configuring a ARP ACL
293
Figure 185:
Binding a Port to an ACL
294
Figure 186:
Showing ACL Statistics
295
Figure 187:
Creating an IP Address Filter for Management Access
297
Figure 188:
Showing IP Addresses Authorized for Management Access
297
Figure 189:
Configuring Port Security
300
Figure 190:
Configuring Port Authentication
301
Figure 191:
Configuring Global Settings for 802.1X Port Authentication
302
Figure 192:
Configuring Interface Settings for 802.1X Port Authenticator
306
Figure 193:
Showing Statistics for 802.1X Port Authenticator
308
Figure 194:
Protecting Against DoS Attacks
310
Figure 195:
Configuring Global Settings for DHCP Snooping
314
Figure 196:
Configuring DHCP Snooping on a VLAN
315
Figure 197:
Configuring the Port Mode for DHCP Snooping
317
Figure 198:
Displaying the Binding Table for DHCP Snooping
318
Figure 199:
Setting the Filter Type for IPv4 Source Guard
320
Figure 200:
Configuring Static Bindings for IPv4 Source Guard
322
Figure 201:
Displaying Static Bindings for IPv4 Source Guard
323
Figure 202:
Showing the IPv4 Source Guard Binding Table
324
Figure 203:
Configuring Global Settings for ARP Inspection
327
Figure 204:
Configuring VLAN Settings for ARP Inspection
328