Dell 210-AEIR, 210-AEVX, 210-ABOH, 210-ABNV User Guide

Dell Networking N-Series

N1500, N2000, N3000, and

N4000 Switches

User’s Configuration

Guide

Version 6.3.0.0 and Later

Regulatory Models: N1524, N1524P, N1548, N1548P, N2024, N2024P, N2038, N2048P, N3024, N3024F, N3024P, N3048, N3048P, N4032, N4032F, N4064, N4064F

Notes and Cautions

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

____________

Information in this publication is subject to change without notice.

Copyright © 2016 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.

Regulatory Models: N1524, N1524P, N1548, N1548P, N2024, N2024P, N2038, N2048P, N3024, N3024F, N3024P, N3048, N3048P, N4032, N4032F, N4064, N4064F

January 2016

Rev. A02

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . .	55
About This Document . . . . . . . . . . . . . . . . . .	55
Audience . . . . . . . . . . . . . . . . . . . . . . . . .	55
Document Conventions . . . . . . . . . . . . . . . . .	56
Additional Documentation. . . . . . . . . . . . . . . .	56

2 Switch Feature Overview . . . . . . . . . . . .	57
System Management Features . . . . . . . . . . . . .	58
Multiple Management Options . . . . . . . . . . .	58
System Time Management . . . . . . . . . . . . .	58
Log Messages . . . . . . . . . . . . . . . . . . .	59
Integrated DHCP Server . . . . . . . . . . . . . .	59
Management of Basic Network Information . . . .	59
IPv6 Management Features . . . . . . . . . . . .	60
Dual Software Images . . . . . . . . . . . . . . .	60
File Management . . . . . . . . . . . . . . . . . .	60
Switch Database Management Templates . . . .	61
Automatic Installation of Firmware and
Configuration . . . . . . . . . . . . . . . . . . . .	61
sFlow . . . . . . . . . . . . . . . . . . . . . . . .	62
SNMP Alarms and Trap Logs. . . . . . . . . . . .	62
CDP Interoperability Through ISDP . . . . . . . .	63
Remote Monitoring (RMON) . . . . . . . . . . . .	63
N3000 Series Access and Aggregation
Firmware Images . . . . . . . . . . . . . . . . . .	63

Contents 3

Stacking Features . . . . . . . . . . . . . . . . . . . .	65
High Stack Count . . . . . . . . . . . . . . . . . .	65
Single IP Management . . . . . . . . . . . . . . .	65
Master Failover with Transparent Transition. . . .	65
Nonstop Forwarding on the Stack . . . . . . . . .	66
Hot Add/Delete and Firmware
Synchronization . . . . . . . . . . . . . . . . . . .	66

Security Features . . . . . . . . . . . . . . . . . . . .	67
Configurable Access and Authentication	67
Profiles . . . . . . . . . . . . . . . . . . . . . . .
Password-Protected Management Access . . . .	67
Strong Password Enforcement . . . . . . . . . . .	67
TACACS+ Client . . . . . . . . . . . . . . . . . . .	67
RADIUS Support . . . . . . . . . . . . . . . . . .	68
SSH/SSL. . . . . . . . . . . . . . . . . . . . . . .	68
Inbound Telnet Control . . . . . . . . . . . . . . .	68
Denial of Service . . . . . . . . . . . . . . . . . .	68
Port Protection . . . . . . . . . . . . . . . . . . .	69
Captive Portal . . . . . . . . . . . . . . . . . . . .	70
802.1X Authentication (IEEE 802.1X) . . . . . . . .	70
MAC-Based 802.1X Authentication . . . . . . . . .	71
802.1X Monitor Mode . . . . . . . . . . . . . . . .	71
MAC-Based Port Security . . . . . . . . . . . . .	71
Access Control Lists (ACLs) . . . . . . . . . . . .	72
Time-Based ACLs . . . . . . . . . . . . . . . . . .	72
IP Source Guard (IPSG) . . . . . . . . . . . . . . .	72
DHCP Snooping . . . . . . . . . . . . . . . . . . .	73
Dynamic ARP Inspection . . . . . . . . . . . . . .	73
Protected Ports (Private VLAN Edge). . . . . . . .	73

Green Technology Features . . . . . . . . . . . . . . .	74
Energy Detect Mode . . . . . . . . . . . . . . . .	74
Energy Efficient Ethernet . . . . . . . . . . . . . .	74

4 Contents

Power Utilization Reporting . . . . . . . . . . . .	74
Power over Ethernet (PoE) Plus Features . . . . . . . .	75
Power Over Ethernet (PoE) Plus	75
Configuration . . . . . . . . . . . . . . . . . . . .
PoE Plus Support . . . . . . . . . . . . . . . . . .	75
UPOE Support. . . . . . . . . . . . . . . . . . . .	75
Switching Features . . . . . . . . . . . . . . . . . . .	76
Flow Control Support (IEEE 802.3x) . . . . . . . . .	76
Head of Line Blocking Prevention . . . . . . . . .	76
Alternate Store and Forward (ASF). . . . . . . . .	76
Jumbo Frames Support . . . . . . . . . . . . . . .	76
Auto-MDI/MDIX Support . . . . . . . . . . . . . .	77
VLAN-Aware MAC-based Switching. . . . . . . .	77
Back Pressure Support . . . . . . . . . . . . . . .	77
Auto-negotiation . . . . . . . . . . . . . . . . . .	77
Storm Control . . . . . . . . . . . . . . . . . . . .	78
Port Mirroring. . . . . . . . . . . . . . . . . . . .	78
Static and Dynamic MAC Address Tables . . . . .	78
Link Layer Discovery Protocol (LLDP) . . . . . . .	79
Link Layer Discovery Protocol (LLDP) for
Media Endpoint Devices . . . . . . . . . . . . . .	79
Connectivity Fault Management
(IEEE 802.1ag) . . . . . . . . . . . . . . . . . . . .	79
Priority-based Flow Control (PFC) . . . . . . . . .	79
Data Center Bridging Exchange (DBCx)
Protocol . . . . . . . . . . . . . . . . . . . . . . .	80
Enhanced Transmission Selection . . . . . . . . .	80
Cisco Protocol Filtering . . . . . . . . . . . . . . .	81
DHCP Layer-2 Relay . . . . . . . . . . . . . . . .	81
Virtual Local Area Network Supported Features . . . .	82
VLAN Support. . . . . . . . . . . . . . . . . . . .	82
Port-Based VLANs . . . . . . . . . . . . . . . . .	82

Contents 5

IP Subnet-based VLAN . . . . . . . . . . . . . . .	82
MAC-based VLAN. . . . . . . . . . . . . . . . . .	82
IEEE 802.1v Protocol-Based VLANs. . . . . . . . .	82
GARP and GVRP Support . . . . . . . . . . . . . .	82
Voice VLAN . . . . . . . . . . . . . . . . . . . . .	83
Guest VLAN . . . . . . . . . . . . . . . . . . . . .	83
Unauthorized VLAN . . . . . . . . . . . . . . . . .	83
Double VLANs. . . . . . . . . . . . . . . . . . . .	83
Spanning Tree Protocol Features . . . . . . . . . . . .	84
Spanning Tree Protocol (STP) . . . . . . . . . . .	84
Spanning Tree Port Settings . . . . . . . . . . . .	84
Rapid Spanning Tree . . . . . . . . . . . . . . . .	84
Multiple Spanning Tree . . . . . . . . . . . . . . .	84
Bridge Protocol Data Unit (BPDU) Guard. . . . . .	85
BPDU Filtering . . . . . . . . . . . . . . . . . . .	85
RSTP-PV and STP-PV . . . . . . . . . . . . . . . .	85
Link Aggregation Features. . . . . . . . . . . . . . . .	86
Link Aggregation . . . . . . . . . . . . . . . . . .	86
Link Aggregate Control Protocol (LACP) . . . . . .	87
Multi-Switch LAG (MLAG) . . . . . . . . . . . . .	87
Routing Features . . . . . . . . . . . . . . . . . . . . .	88
Address Resolution Protocol (ARP) Table	88
Management . . . . . . . . . . . . . . . . . . . .
VLAN Routing . . . . . . . . . . . . . . . . . . . .	88
IP Configuration . . . . . . . . . . . . . . . . . . .	88
Open Shortest Path First (OSPF) . . . . . . . . . .	88
Border Gateway Protocol (BGP) . . . . . . . . . .	89
Virtual Routing and Forwarding (VRF) . . . . . . .	89
BOOTP/DHCP Relay Agent . . . . . . . . . . . . .	90
IP Helper and UDP Relay . . . . . . . . . . . . . .	90
Routing Information Protocol . . . . . . . . . . . .	90
Router Discovery . . . . . . . . . . . . . . . . . .	90

6 Contents

Routing Table . . . . . . . . . . . . . . . . . . . .	90
Virtual Router Redundancy Protocol (VRRP) . . . .	91
Tunnel and Loopback Interfaces . . . . . . . . . .	91
IPv6 Routing Features . . . . . . . . . . . . . . . . . .	92
IPv6 Configuration . . . . . . . . . . . . . . . . .	92
IPv6 Routes . . . . . . . . . . . . . . . . . . . . .	92
OSPFv3 . . . . . . . . . . . . . . . . . . . . . . .	92
DHCPv6 . . . . . . . . . . . . . . . . . . . . . . .	92
Quality of Service (QoS) Features . . . . . . . . . . . .	93
Differentiated Services (DiffServ) . . . . . . . . .	93
Class Of Service (CoS) . . . . . . . . . . . . . . .	93
Auto Voice over IP (VoIP). . . . . . . . . . . . . .	93
Internet Small Computer System Interface
(iSCSI) Optimization. . . . . . . . . . . . . . . . .	94
Layer-2 Multicast Features . . . . . . . . . . . . . . .	94
MAC Multicast Support. . . . . . . . . . . . . . .	94
IGMP Snooping . . . . . . . . . . . . . . . . . . .	94
IGMP Snooping Querier . . . . . . . . . . . . . .	95
MLD Snooping . . . . . . . . . . . . . . . . . . .	95
Multicast VLAN Registration . . . . . . . . . . . .	95
Layer-3 Multicast Features . . . . . . . . . . . . . . .	96
Distance Vector Multicast Routing Protocol . . . .	96
Internet Group Management Protocol . . . . . . .	96
IGMP Proxy . . . . . . . . . . . . . . . . . . . . .	96
Protocol Independent Multicast—Dense
Mode . . . . . . . . . . . . . . . . . . . . . . . .	96
Protocol Independent Multicast—Sparse
Mode . . . . . . . . . . . . . . . . . . . . . . . .	97
Protocol Independent Multicast—Source
Specific Multicast . . . . . . . . . . . . . . . . .	97
Protocol Independent Multicast IPv6 Support . . .	97
MLD/MLDv2 (RFC2710/RFC3810) . . . . . . . . . .	97
Contents			7

3 Hardware Overview . . . . . . . . . . . . . . . .	99
Dell Networking N1500 Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	99
Front Panel . . . . . . . . . . . . . . . . . . . . .	99
Back Panel . . . . . . . . . . . . . . . . . . . .	103
LED Definitions . . . . . . . . . . . . . . . . . .	104
Power Consumption for PoE Switches . . . . . .	107
Dell Networking N2000 Series Switch	109
Hardware. . . . . . . . . . . . . . . . . . . . . . . .
Front Panel . . . . . . . . . . . . . . . . . . . .	109
Back Panel . . . . . . . . . . . . . . . . . . . .	112
LED Definitions . . . . . . . . . . . . . . . . . .	114
Power Consumption for PoE Switches . . . . . .	117
Dell Networking N3000 Series Switch	119
Hardware. . . . . . . . . . . . . . . . . . . . . . . .
Front Panel . . . . . . . . . . . . . . . . . . . .	119
Back Panel . . . . . . . . . . . . . . . . . . . .	123
LED Definitions . . . . . . . . . . . . . . . . . .	126
Power Consumption for PoE Switches . . . . . .	130
Dell Networking N4000 Series Switch	132
Hardware. . . . . . . . . . . . . . . . . . . . . . . .
Front Panel . . . . . . . . . . . . . . . . . . . .	132
Back Panel . . . . . . . . . . . . . . . . . . . .	136
LED Definitions . . . . . . . . . . . . . . . . . .	138
Switch MAC Addresses . . . . . . . . . . . . . . . .	142

8 Contents

4Using Dell OpenManage Switch

Administrator . . . . . . . . . . . . . . . . . . . . 145

About Dell OpenManage Switch Administrator . . . .	145
Starting the Application . . . . . . . . . . . . . . . . .	146
Understanding the Interface. . . . . . . . . . . . . . .	147
Using the Switch Administrator Buttons and Links. . . 149
Defining Fields . . . . . . . . . . . . . . . . . . . . . .	150
Understanding the Device View. . . . . . . . . . . . .	150
Using the Device View Port Features . . . . . . .	150
Using the Device View Switch Locator
Feature . . . . . . . . . . . . . . . . . . . . . . .	151

5 Using the Command-Line Interface . . . . 153

Accessing the Switch Through the CLI . . . . . . . . .	153
Console Connection . . . . . . . . . . . . . . . .	153
Telnet Connection . . . . . . . . . . . . . . . . .	154
Understanding Command Modes . . . . . . . . . . . .	155
Entering CLI Commands . . . . . . . . . . . . . . . . .	157
Using the Question Mark to Get Help . . . . . . .	157
Using Command Completion . . . . . . . . . . . .	158
Entering Abbreviated Commands . . . . . . . . .	158
Negating Commands . . . . . . . . . . . . . . . .	158
Command Output Paging . . . . . . . . . . . . . .	158
Understanding Error Messages . . . . . . . . . .	159
Recalling Commands from the History Buffer . . .	159

Contents 9

6Default Settings . . . . . . . . . . . . . . . . . . . 161

7Setting the IP Address and Other

Basic Network Information . . . . . . . . . . 165

IP Address and Network Information Overview . . .	165
What Is the Basic Network Information?. . . . .	165
Why Is Basic Network Information
Needed?. . . . . . . . . . . . . . . . . . . . . .	166
How Is Basic Network Information
Configured? . . . . . . . . . . . . . . . . . . . .	167
What Is Out-of-Band Management and
In-Band Management? . . . . . . . . . . . . . .	167

Default Network Information . . . . . . . . . . . . .	169
Configuring Basic Network Information (Web) . . . .	171
Out-of-Band Interface . . . . . . . . . . . . . .	171
IP Interface Configuration (Default VLAN
IP Address) . . . . . . . . . . . . . . . . . . . .	172
Route Entry Configuration (Switch Default
Gateway) . . . . . . . . . . . . . . . . . . . . .	174
Domain Name Server . . . . . . . . . . . . . . .	176
Default Domain Name . . . . . . . . . . . . . .	177
Host Name Mapping . . . . . . . . . . . . . . .	178
Dynamic Host Name Mapping . . . . . . . . . .	179

Configuring Basic Network Information (CLI) . . . . .	180
Enabling the DHCP Client on the OOB Port . . . .	180
Enabling the DHCP Client on the Default
VLAN . . . . . . . . . . . . . . . . . . . . . . .	180
Managing DHCP Leases . . . . . . . . . . . . .	181
Configuring Static Network Information on
the OOB Port . . . . . . . . . . . . . . . . . . .	182
Configuring Static Network Information	183
on the Default VLAN . . . . . . . . . . . . . . .

10 Contents

Configuring and Viewing Additional

Network Information . . . . . . . . . . . . . . . . 184

Basic Network Information Configuration

Examples. . . . . . . . . . . . . . . . . . . . . . . . . 186

Configuring Network Information Using

the OOB Port . . . . . . . . . . . . . . . . . . . . 186

Configuring Network Information Using the

Serial Interface . . . . . . . . . . . . . . . . . . . 187

8Managing QSFP Ports . . . . . . . . . . . . . . 191

9Stacking . . . . . . . . . . . . . . . . . . . . . . . . . 193

Stacking Overview . . . . . . . . . . . . . . . . . . .	193
Dell Networking N1500, N2000, N3000,	197
and N4000 Stacking Compatibility . . . . . . . . .
How is the Stack Master Selected? . . . . . . . .	198
Adding a Switch to the Stack. . . . . . . . . . . .	199
Removing a Switch from the Stack. . . . . . . . .	200
How is the Firmware Updated on the Stack? . . . 201
What is Stacking Standby? . . . . . . . . . . . . .	201
What is Nonstop Forwarding? . . . . . . . . . . .	201
Switch Stack MAC Addressing and Stack
Design Considerations . . . . . . . . . . . . . . .	205
NSF Network Design Considerations . . . . . . .	205
Why is Stacking Needed? . . . . . . . . . . . . .	206
Default Stacking Values . . . . . . . . . . . . . . . . .	206
Managing and Monitoring the Stack (Web) . . . . . .	207
Unit Configuration . . . . . . . . . . . . . . . . .	207
Stack Summary . . . . . . . . . . . . . . . . . . .	208
Stack Firmware Synchronization . . . . . . . . . .	209

Contents 11

Supported Switches . . . . . . . . . . . . . . .	210
Stack Port Summary . . . . . . . . . . . . . . .	211
Stack Port Counters. . . . . . . . . . . . . . . .	212
Stack Port Diagnostics . . . . . . . . . . . . . .	212
NSF Summary . . . . . . . . . . . . . . . . . . .	213
Checkpoint Statistics . . . . . . . . . . . . . . .	214
Managing the Stack (CLI) . . . . . . . . . . . . . . .	215
Configuring Stack Member, Stack Port, and	215
NSF Settings . . . . . . . . . . . . . . . . . . .
Viewing and Clearing Stacking and NSF
Information . . . . . . . . . . . . . . . . . . . .	217
Connecting to the Management Console
from a Stack Member. . . . . . . . . . . . . . .	217
Stacking and NSF Usage Scenarios. . . . . . . . . .	218
Basic Failover . . . . . . . . . . . . . . . . . . .	218
Preconfiguring a Stack Member . . . . . . . . .	220
NSF in the Data Center . . . . . . . . . . . . . .	222
NSF and VoIP . . . . . . . . . . . . . . . . . . .	223
NSF and DHCP Snooping . . . . . . . . . . . . .	224
NSF and the Storage Access Network . . . . . .	225
NSF and Routed Access . . . . . . . . . . . . .	227

10Authentication, Authorization, and

Accounting . . . . . . . . . . . . . . . . . . . . . . 229

AAA Introduction. . . . . . . . . . . . . . . . . . . .	229
Methods. . . . . . . . . . . . . . . . . . . . . .	230
Method Lists . . . . . . . . . . . . . . . . . . .	231
Access Lines . . . . . . . . . . . . . . . . . . .	232
Access Lines (AAA). . . . . . . . . . . . . . . .	233
Access Lines (Non-AAA) . . . . . . . . . . . . .	234

12 Contents

Authentication . . . . . . . . . . . . . . . . . . . . . .	235
Authentication Types . . . . . . . . . . . . . . . .	235
Authentication Manager . . . . . . . . . . . . . .	236
Using RADIUS . . . . . . . . . . . . . . . . . . .	241
Using TACACS+ Servers to Control	246
Management Access . . . . . . . . . . . . . . . .
Authentication Examples . . . . . . . . . . . . . .	248
Public Key SSH Authentication Example . . . . . .	256
Associating a User With an SSH Key . . . . . . .	263

Authorization. . . . . . . . . . . . . . . . . . . . . . .	265
Exec Authorization Capabilities . . . . . . . . . .	265
Authorization Examples. . . . . . . . . . . . . . .	267
RADIUS Change of Authorization. . . . . . . . . .	269
TACACS Authorization . . . . . . . . . . . . . . .	273

Accounting . . . . . . . . . . . . . . . . . . . . . . . .	277
RADIUS Accounting . . . . . . . . . . . . . . . .	277
IEEE 802.1X . . . . . . . . . . . . . . . . . . . . . . . .	279
What is IEEE 802.1X? . . . . . . . . . . . . . . . .	279
What are the 802.1X Port Authentication
Modes? . . . . . . . . . . . . . . . . . . . . . . .	280
What is MAC-Based 802.1X Authentication? . . .	281
What is the Role of 802.1X in VLAN
Assignment? . . . . . . . . . . . . . . . . . . . .	282
What is Monitor Mode? . . . . . . . . . . . . . .	285
How Does the Authentication Server Assign
DiffServ Policy? . . . . . . . . . . . . . . . . . . .	286
What is the Internal Authentication Server? . . . . 287
Default 802.1X Values. . . . . . . . . . . . . . . .	287
Configuring IEEE 802.1X (Web) . . . . . . . . . . .	288
Captive Portal . . . . . . . . . . . . . . . . . . . . . .	313
Captive Portal Overview . . . . . . . . . . . . . .	313
Default Captive Portal Behavior and Settings . . .	321
Contents			13

Configuring Captive Portal (Web). . . . . . . . .	323
Configuring Captive Portal (CLI) . . . . . . . . .	341
Captive Portal Configuration Example . . . . . .	347
In Case Of Problems in Captive Portal	351
Deployment . . . . . . . . . . . . . . . . . . . .

11Monitoring and Logging System

Information . . . . . . . . . . . . . . . . . . . . . . 353

System Monitoring Overview . . . . . . . . . . . . .	353
What System Information Is Monitored? . . . . .	353
Why Is System Information Needed?. . . . . . .	354
Where Are Log Messages Sent? . . . . . . . . .	354
What Are the Severity Levels? . . . . . . . . . .	355
What Are the System Startup and Operation	355
Logs? . . . . . . . . . . . . . . . . . . . . . . .
What Is the Log Message Format? . . . . . . . .	356
What Factors Should Be Considered When
Configuring Logging? . . . . . . . . . . . . . . .	357

Default Log Settings . . . . . . . . . . . . . . . . . .	358
Monitoring System Information and Configuring	359
Logging (Web) . . . . . . . . . . . . . . . . . . . . .
Device Information . . . . . . . . . . . . . . . .	359
System Health. . . . . . . . . . . . . . . . . . .	361
System Resources . . . . . . . . . . . . . . . .	362
Unit Power Usage History . . . . . . . . . . . .	363
Integrated Cable Test for Copper Cables . . . . .	364
Optical Transceiver Diagnostics . . . . . . . . .	365
Log Global Settings . . . . . . . . . . . . . . . .	367
RAM Log . . . . . . . . . . . . . . . . . . . . .	368
Log File . . . . . . . . . . . . . . . . . . . . . .	369
Syslog Server . . . . . . . . . . . . . . . . . . .	369
Email Alert Global Configuration . . . . . . . . .	372

14 Contents

Email Alert Mail Server Configuration . . . . . . .	372
Email Alert Subject Configuration . . . . . . . . .	374
Email Alert To Address Configuration . . . . . . .	375
Email Alert Statistics . . . . . . . . . . . . . . . .	376
Monitoring System Information and Configuring	377
Logging (CLI) . . . . . . . . . . . . . . . . . . . . . . .
Viewing System Information and Enabling	377
the Locator LED . . . . . . . . . . . . . . . . . . .
Running Cable Diagnostics . . . . . . . . . . . . .	377
Configuring Local Logging . . . . . . . . . . . . .	379
Configuring Remote Logging . . . . . . . . . . . .	380
Configuring Mail Server Settings. . . . . . . . . .	381
Configuring Email Alerts for Log Messages . . . .	382
Logging Configuration Examples . . . . . . . . . . . .	384
Configuring Local and Remote Logging . . . . . .	384
Configuring Email Alerting . . . . . . . . . . . . .	386

12 Managing General System Settings . . .	389
System Settings Overview. . . . . . . . . . . . . . . .	389
Why Does System Information Need to Be	391
Configured? . . . . . . . . . . . . . . . . . . . . .
What Are SDM Templates? . . . . . . . . . . . .	391
Why is the System Time Needed? . . . . . . . . .	394
How Does SNTP Work? . . . . . . . . . . . . . .	394
What Configuration Is Required for Plug-In
Modules? . . . . . . . . . . . . . . . . . . . . . .	395
What Are the Key PoE Plus Features for the
Dell Networking N1524P/N1548P, N2024P/
N2048P, and N3024P/N3048P Switches? . . . . . .	396
Default General System Information . . . . . . . . . .	397
Power Management in Guard Band . . . . . . . .	397

Contents 15

Dynamic/Static Power Management Mode . . .	398
Class-Based Power Management Mode . . . . .	398
Configuring General System Settings (Web) . . .	398
System Information . . . . . . . . . . . . . . . .	398
CLI Banner . . . . . . . . . . . . . . . . . . . .	402
SDM Template Preference . . . . . . . . . . . .	403
Clock . . . . . . . . . . . . . . . . . . . . . . .	404
SNTP Global Settings . . . . . . . . . . . . . . .	405
SNTP Authentication . . . . . . . . . . . . . . .	406
SNTP Server . . . . . . . . . . . . . . . . . . .	408
Summer Time Configuration . . . . . . . . . . .	411
Time Zone Configuration . . . . . . . . . . . . .	412
Card Configuration . . . . . . . . . . . . . . . .	413
Slot Summary . . . . . . . . . . . . . . . . . . .	414
Supported Cards . . . . . . . . . . . . . . . . .	415
Power Over Ethernet Global Configuration
(Dell Networking N1524P/N1548P, N2024P/	416
N2048P, and N3024P/N3048P Only) . . . . . . . .
Power Over Ethernet Interface Configuration
(Dell Networking N1524P/N1548P, N2024P/	417
N2048P, and N3024P/N3048P Only) . . . . . . . .
Configuring System Settings (CLI) . . . . . . . . . . .	419
Configuring System Information . . . . . . . . .	419
Configuring the Banner . . . . . . . . . . . . . .	420
Managing the SDM Template . . . . . . . . . .	421
Configuring SNTP Authentication and an	421
SNTP Server . . . . . . . . . . . . . . . . . . .
Setting the System Time and Date Manually . . .	423
Configuring the Expansion Slots (Dell	424
Networking N3000 Series Only). . . . . . . . . .
Viewing Slot Information (Dell Networking
N4000 Series Only) . . . . . . . . . . . . . . . .	425
Configuring PoE Settings (Dell Networking
N1524P/N1548P, N2024P/N2048P, and N3024P/
N3048P Only) . . . . . . . . . . . . . . . . . . .	425

16 Contents

General System Settings Configuration

Examples. . . . . . . . . . . . . . . . . . . . . . . . .	427
Configuring System and Banner Information . . .	427
Configuring SNTP. . . . . . . . . . . . . . . . . .	430
Configuring the Time Manually . . . . . . . . . . .	432

13 SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . .	433
SNMP Overview . . . . . . . . . . . . . . . . . . . . .	433
What Is SNMP?. . . . . . . . . . . . . . . . . . .	433
What Are SNMP Traps? . . . . . . . . . . . . . .	434
Why Is SNMP Needed? . . . . . . . . . . . . . .	435
Default SNMP Values . . . . . . . . . . . . . . . . . .	435
Configuring SNMP (Web) . . . . . . . . . . . . . . . .	437
SNMP Global Parameters . . . . . . . . . . . . .	437
SNMP View Settings . . . . . . . . . . . . . . . .	438
Access Control Group . . . . . . . . . . . . . . .	440
SNMPv3 User Security Model (USM) . . . . . . .	442
Communities . . . . . . . . . . . . . . . . . . . .	445
Notification Filter . . . . . . . . . . . . . . . . . .	447
Notification Recipients . . . . . . . . . . . . . . .	448
Trap Flags. . . . . . . . . . . . . . . . . . . . . .	450
OSPFv2 Trap Flags . . . . . . . . . . . . . . . . .	451
OSPFv3 Trap Flags . . . . . . . . . . . . . . . . .	452
Trap Log. . . . . . . . . . . . . . . . . . . . . . .	453
Configuring SNMP (CLI) . . . . . . . . . . . . . . . . .	455
Configuring the SNMPv3 Engine ID . . . . . . . .	455
Configuring SNMP Views, Groups, and Users . . . 456
Configuring Communities . . . . . . . . . . . . . .	459
Configuring SNMP Notifications (Traps
and Informs) . . . . . . . . . . . . . . . . . . . .	461

Contents 17

SNMP Configuration Examples . . . . . . . . . . . .	464
Configuring SNMPv1 and SNMPv2 . . . . . . . .	464
Configuring SNMPv3 . . . . . . . . . . . . . . .	465

14 Images and File Management . . . . . . . .	469
Image and File Management Overview . . . . . . . .	469
What Files Can Be Managed? . . . . . . . . . .	469
Why Is File Management Needed? . . . . . . . .	471
What Methods Are Supported for File
Management?. . . . . . . . . . . . . . . . . . .	474
What Factors Should Be Considered When
Managing Files?. . . . . . . . . . . . . . . . . .	474
How Is the Running Configuration Saved? . . . .	477
N3000 Dual Images. . . . . . . . . . . . . . . . . . .	477
Access Router/Switch Role. . . . . . . . . . . .	477
Aggregation Router Role . . . . . . . . . . . . .	478
Managing Images and Files (Web) . . . . . . . . . .	479
File System . . . . . . . . . . . . . . . . . . . .	479
Active Images. . . . . . . . . . . . . . . . . . .	480
USB Flash Drive . . . . . . . . . . . . . . . . . .	481
File Download . . . . . . . . . . . . . . . . . . .	482
File Upload . . . . . . . . . . . . . . . . . . . .	484
Copy Files . . . . . . . . . . . . . . . . . . . . .	486
Managing Images and Files (CLI) . . . . . . . . . . .	487
Downloading and Activating a New Image	487
(TFTP) . . . . . . . . . . . . . . . . . . . . . . .
Managing Files in Internal Flash . . . . . . . . .	489
Managing Files on a USB Flash Device . . . . .	490
Uploading a Configuration File (SCP) . . . . . . .	490
Managing Configuration Scripts (SFTP) . . . . .	491

18 Contents

File and Image Management Configuration

Examples. . . . . . . . . . . . . . . . . . . . . . . . .	492
Upgrading the Firmware . . . . . . . . . . . . . .	492
Managing Configuration Scripts . . . . . . . . . .	495
Managing Files by Using the USB Flash Drive . . .	497

15 DHCP and USB Auto-Configuration . . . . 499

Auto Configuration Overview . . . . . . . . . . . . . .	499
What Is USB Auto Configuration? . . . . . . . . .	500
What Files Does USB Auto Configuration
Use?. . . . . . . . . . . . . . . . . . . . . . . . .	500
How Does USB Auto Configuration Use the
Files on the USB Device? . . . . . . . . . . . . . .	501
What Is the Setup File Format?. . . . . . . . . . .	503
What Is the DHCP Auto Configuration
Process? . . . . . . . . . . . . . . . . . . . . . .	503
Monitoring and Completing the DHCP
Auto Configuration Process . . . . . . . . . . . .	509
What Are the Dependencies for DHCP
Auto Configuration? . . . . . . . . . . . . . . . .	510

Default Auto Configuration Values . . . . . . . . . . .	511
Managing Auto Configuration (Web) . . . . . . . . . .	512
Auto-Install Configuration . . . . . . . . . . . . .	512
Managing Auto Configuration (CLI) . . . . . . . . . . .	513
Managing Auto Configuration . . . . . . . . . . .	513
Auto Configuration Example. . . . . . . . . . . . . . .	514
Enabling USB Auto Configuration and Auto	514
Image Download . . . . . . . . . . . . . . . . . .
Enabling DHCP Auto Configuration and Auto
Image Download . . . . . . . . . . . . . . . . . .	515
Easy Firmware Upgrade via USB . . . . . . . . . .	517
Contents			19

		16 Monitoring Switch Traffic . . . . . . . . . . .	519
		Traffic Monitoring Overview. . . . . . . . . . . . . .	519
		What is sFlow Technology?. . . . . . . . . . . .	519
		What is RMON? . . . . . . . . . . . . . . . . . .	522
		What is Port Mirroring? . . . . . . . . . . . . . .	523
		Port Mirroring Behaviors . . . . . . . . . . . . .	524
		Remote Capture . . . . . . . . . . . . . . . . . .	526
		Why is Traffic Monitoring Needed? . . . . . . .	526
		Default Traffic Monitoring Values . . . . . . . . . . .	526
		Monitoring Switch Traffic (Web) . . . . . . . . . . .	527
		sFlow Agent Summary . . . . . . . . . . . . . .	527
		sFlow Receiver Configuration . . . . . . . . . .	528
		sFlow Sampler Configuration . . . . . . . . . . .	529
		sFlow Poll Configuration . . . . . . . . . . . . .	530
		Interface Statistics . . . . . . . . . . . . . . . .	531
		Etherlike Statistics . . . . . . . . . . . . . . . .	532
		GVRP Statistics . . . . . . . . . . . . . . . . . .	533
		EAP Statistics . . . . . . . . . . . . . . . . . . .	534
		Utilization Summary. . . . . . . . . . . . . . . .	535
		Counter Summary . . . . . . . . . . . . . . . . .	536
		Switchport Statistics . . . . . . . . . . . . . . .	537
		RMON Statistics . . . . . . . . . . . . . . . . .	538
		RMON History Control Statistics . . . . . . . . .	539
		RMON History Table . . . . . . . . . . . . . . .	541
		RMON Event Control . . . . . . . . . . . . . . .	542
		RMON Event Log . . . . . . . . . . . . . . . . .	544
		RMON Alarms. . . . . . . . . . . . . . . . . . .	545
		Port Statistics . . . . . . . . . . . . . . . . . . .	547
		LAG Statistics . . . . . . . . . . . . . . . . . . .	548
		Port Mirroring . . . . . . . . . . . . . . . . . . .	549
		Monitoring Switch Traffic (CLI) . . . . . . . . . . . .	551
		Configuring sFlow . . . . . . . . . . . . . . . . .	551
20		Contents

Configuring RMON . . . . . . . . . . . . . . . . .	553
Viewing Statistics. . . . . . . . . . . . . . . . . .	555
Configuring Port Mirroring . . . . . . . . . . . . .	556
Configuring RSPAN . . . . . . . . . . . . . . . . .	557
Traffic Monitoring Examples . . . . . . . . . . . . . .	560
Showing Interface Traffic . . . . . . . . . . . . .	560
Configuring sFlow. . . . . . . . . . . . . . . . . .	561
Configuring RMON . . . . . . . . . . . . . . . . .	563
Configuring Remote Capture . . . . . . . . . . . .	564
Configuring RSPAN . . . . . . . . . . . . . . . . .	569

17 iSCSI Optimization . . . . . . . . . . . . . . . . . 573

iSCSI Optimization Overview . . . . . . . . . . . . . . 573

What Does iSCSI Optimization Do?. . . . . . . . . 574

What Occurs When iSCSI Optimization Is

Enabled or Disabled? . . . . . . . . . . . . . . . . 574

How Does the Switch Detect iSCSI Traffic

Flows?. . . . . . . . . . . . . . . . . . . . . . . . 574

How Is Quality of Service Applied to iSCSI

Traffic Flows? . . . . . . . . . . . . . . . . . . . . 575

How Does iSCSI Optimization Use ACLs? . . . . . 576

What Information Does the Switch Track in

iSCSI Traffic Flows? . . . . . . . . . . . . . . . . 576

How Does iSCSI Optimization Interact With

Dell EqualLogic Arrays? . . . . . . . . . . . . . . 577

How Does iSCSI Optimization Interact with

Dell Compellent Arrays? . . . . . . . . . . . . . . 577

How Does iSCSI Optimization Interact with

DCBx? . . . . . . . . . . . . . . . . . . . . . . . . 578

iSCSI CoS and Priority Flow Control/Enhanced Transmission Selection Interactions . . . . . . . . 579

Default iSCSI Optimization Values . . . . . . . . . . . 580

Contents 21

Configuring iSCSI Optimization (Web). . . . . . . . .	581
iSCSI Global Configuration . . . . . . . . . . . .	581
iSCSI Targets Table . . . . . . . . . . . . . . . .	582
iSCSI Sessions Table . . . . . . . . . . . . . . .	583
iSCSI Sessions Detailed . . . . . . . . . . . . .	584
Configuring iSCSI Optimization (CLI) . . . . . . . . .	585
iSCSI Optimization Configuration Examples . . . . .	587
Configuring iSCSI Optimization Between	587
Servers and a Disk Array . . . . . . . . . . . . .

18 Port Characteristics . . . . . . . . . . . . . . .	591
Port Overview . . . . . . . . . . . . . . . . . . . . .	591
What Physical Port Characteristics Can	591
Be Configured? . . . . . . . . . . . . . . . . . .
Auto-Negotiation . . . . . . . . . . . . . . . . .	593
Maximum Transmission Unit . . . . . . . . . . .	593
What is Link Dependency? . . . . . . . . . . . .	594
What Interface Types are Supported? . . . . . .	596
What is Interface Configuration Mode? . . . . .	596
What Are the Green Ethernet Features? . . . . .	598
Switchport Modes . . . . . . . . . . . . . . . .	599
Default Port Values . . . . . . . . . . . . . . . . . .	600
Configuring Port Characteristics (Web) . . . . . . . .	601
Port Configuration. . . . . . . . . . . . . . . . .	601
Link Dependency Configuration . . . . . . . . .	604
Link Dependency Summary. . . . . . . . . . . .	606
Port Green Ethernet Configuration . . . . . . . .	607
Port Green Ethernet Statistics . . . . . . . . . .	608
Port Green Ethernet LPI History . . . . . . . . .	610

22 Contents

	Configuring Port Characteristics (CLI) . . . .	.	. . . .	611
	Configuring Port Settings . . . . . . . . .	.	. . . .	611
	Configuring Link Dependencies . . . . .	.	. . . .	613
	Configuring Green Features . . . . . . .	.	. . . .	614
	Port Configuration Examples . . . . . . . . .	.	. . . .	615
	Configuring Port Settings . . . . . . . . .	.	. . . .	615
	Configuring a Link Dependency Groups .	.	. . . .	616
	Configuring a Port in Access Mode . . .	.	. . . .	616
	Configuring a Port in Trunk Mode . . . .	.	. . . .	617
	Configuring a Port in General Mode . . .	.	. . . .	620
19	Port and System Security . . . . . . .	.	. . .	623
	Port-based Security—Port MAC Locking . . .	.	. . . .	623
	Denial of Service . . . . . . . . . . . . . . .	.	. . . .	628
20	Access Control Lists . . . . . . . . . . .	.	. . .	629
	ACL Overview . . . . . . . . . . . . . . . . .	.	. . . .	629
	ACL Counters . . . . . . . . . . . . . . .	.	. . . .	631
	What Are MAC ACLs? . . . . . . . . . .	.	. . . .	631
	What Are IP ACLs? . . . . . . . . . . . .	.	. . . .	632
	ACL Actions. . . . . . . . . . . . . . . .	.	. . . .	632
	What Is the ACL Redirect Function? . . .	.	. . . .	633
	What Is the ACL Mirror Function? . . . .	.	. . . .	634
	What Is ACL Logging . . . . . . . . . . .	.	. . . .	634
	What Are Time-Based ACLs? . . . . . .	.	. . . .	634
	ACL Limitations . . . . . . . . . . . . . .	.	. . . .	635
	ACL Configuration Details . . . . . . . . . . .	.	. . . .	639
	How Are ACLs Configured?. . . . . . . .	.	. . . .	639
	Editing Access Lists . . . . . . . . . . .	.	. . . .	639
			Contents			23

Preventing False ACL Matches . . . . . . . . . .	640
Using IP and MAC Address Masks . . . . . . . .	641
Policy-Based Routing . . . . . . . . . . . . . . . . .	643
Packet Classification . . . . . . . . . . . . . . .	643
Route-Map Processing . . . . . . . . . . . . . .	644
Route-Map Actions . . . . . . . . . . . . . . . .	645
Interface ACLs and PBR Interaction . . . . . . .	647
PBR and Implicit Deny-all. . . . . . . . . . . . .	648
Limitations. . . . . . . . . . . . . . . . . . . . .	648
Configuring ACLs (Web) . . . . . . . . . . . . . . . .	651
IP ACL Configuration . . . . . . . . . . . . . . .	651
IP ACL Rule Configuration . . . . . . . . . . . .	653
MAC ACL Configuration. . . . . . . . . . . . . .	655
MAC ACL Rule Configuration . . . . . . . . . . .	657
IPv6 ACL Configuration . . . . . . . . . . . . . .	658
IPv6 ACL Rule Configuration . . . . . . . . . . .	659
ACL Binding Configuration . . . . . . . . . . . .	661
Time Range Entry Configuration . . . . . . . . .	662
Configuring ACLs (CLI) . . . . . . . . . . . . . . . . .	664
Configuring an IPv4 ACL . . . . . . . . . . . . .	664
Configuring a MAC ACL . . . . . . . . . . . . . .	670
Configuring an IPv6 ACL . . . . . . . . . . . . .	674
Configuring a Time Range . . . . . . . . . . . .	677
ACL Configuration Examples. . . . . . . . . . . . . .	679
Basic Rules . . . . . . . . . . . . . . . . . . . .	679
Internal System ACLs . . . . . . . . . . . . . . .	680
Complete ACL Example . . . . . . . . . . . . . .	681
Advanced Examples . . . . . . . . . . . . . . .	685
Policy-Based Routing Examples . . . . . . . . .	697

24 Contents

21 VLANs . . . . . . . . . . . . . . . . . . . . .	.	.	. . . 701
VLAN Overview . . . . . . . . . . . . . . .	.	.	. . . .	701
VLAN Tagging . . . . . . . . . . . . .	.	.	. . . .	704
GVRP . . . . . . . . . . . . . . . . . .	.	.	. . . .	705
Double-VLAN Tagging . . . . . . . . .	.	.	. . . .	705
Voice VLAN . . . . . . . . . . . . . . .	.	.	. . . .	707
Private VLANs . . . . . . . . . . . . .	.	.	. . . .	709
Additional VLAN Features . . . . . . .	.	.	. . . .	715
Default VLAN Behavior . . . . . . . . . . .	.	.	. . . .	716
Configuring VLANs (Web) . . . . . . . . . .	.	.	. . . .	718
VLAN Membership . . . . . . . . . . .	.	.	. . . .	718
VLAN Port Settings . . . . . . . . . . .	.	.	. . . .	723
VLAN LAG Settings . . . . . . . . . . .	.	.	. . . .	724
Bind MAC to VLAN . . . . . . . . . . .	.	.	. . . .	726
Bind IP Subnet to VLAN . . . . . . . .	.	.	. . . .	727
GVRP Parameters. . . . . . . . . . . .	.	.	. . . .	728
Protocol Group . . . . . . . . . . . . .	.	.	. . . .	730
Adding a Protocol Group . . . . . . . .	.	.	. . . .	731
Double VLAN Global Configuration. . .	.	.	. . . .	733
Double VLAN Interface Configuration .	.	.	. . . .	734
Voice VLAN . . . . . . . . . . . . . . .	.	.	. . . .	736
Configuring VLANs (CLI) . . . . . . . . . . .	.	.	. . . .	737
Creating a VLAN . . . . . . . . . . . .	.	.	. . . .	737
Configuring VLAN Settings for a LAG .	.	.	. . . .	738
Configuring Double VLAN Tagging . . .	.	.	. . . .	739
Configuring MAC-Based VLANs . . . .	.	.	. . . .	742
Configuring IP-Based VLANs. . . . . .	.	.	. . . .	744
Configuring a Protocol-Based VLAN . .	.	.	. . . .	746
Configuring GVRP. . . . . . . . . . . .	.	.	. . . .	749
Configuring Voice VLANs. . . . . . . .	.	.	. . . .	751
Configuring a Voice VLAN (Extended				753
Example) . . . . . . . . . . . . . . . .	.	.	. . . .
			Contents			25

Enterprise Voice VLAN Configuration

With QoS . . . . . . . . . . . . . . . . . . . . .	754
MLAG with RPVST and Voice VLAN . . . . . . .	756
Assigning an 802.1p Priority to VLAN Traffic . . .	763
Configuring a Private VLAN. . . . . . . . . . . .	763
VLAN Configuration Examples. . . . . . . . . . . . .	766
Configuring VLANs Using The Dell	766
OpenManage Administrator . . . . . . . . . . .
Configuring VLANs Using the CLI . . . . . . . . .	774

		22 Spanning Tree Protocol . . . . . . . . . . . . .	779
		STP Overview . . . . . . . . . . . . . . . . . . . . .	779
		What Are Classic STP, Multiple STP, and	779
		Rapid STP? . . . . . . . . . . . . . . . . . . . .
		How Does STP Work? . . . . . . . . . . . . . .	780
		How Does MSTP Operate in the Network?. . . .	781
		MSTP with Multiple Forwarding Paths . . . . . .	785
		MSTP and VLAN IDs . . . . . . . . . . . . . . .	786
		What are the Optional STP Features? . . . . . .	786
		RSTP-PV . . . . . . . . . . . . . . . . . . . . . . . .	788
		DirectLink Rapid Convergence . . . . . . . . . .	789
		IndirectLink Rapid Convergence Feature. . . . .	791
		Interoperability Between STP-PV and	793
		RSTP-PV Modes . . . . . . . . . . . . . . . . .
		Interoperability With IEEE Spanning Tree
		Protocols . . . . . . . . . . . . . . . . . . . . .	793
		Configuration Examples. . . . . . . . . . . . . .	798
		Default STP Values. . . . . . . . . . . . . . . . . . .	799
		Configuring Spanning Tree (Web) . . . . . . . . . . .	800
		STP Global Settings . . . . . . . . . . . . . . . .	800
		STP Port Settings . . . . . . . . . . . . . . . . .	802
26		Contents

STP LAG Settings . . . . . . . . . . . . . . . . . .	804
Rapid Spanning Tree . . . . . . . . . . . . . . . .	805
MSTP Settings . . . . . . . . . . . . . . . . . . .	807
MSTP Interface Settings . . . . . . . . . . . . . .	809
Configuring Spanning Tree (CLI) . . . . . . . . . . . .	810
Configuring Global STP Bridge Settings . . . . . .	810
Configuring Optional STP Features. . . . . . . . .	811
Configuring STP Interface Settings . . . . . . . .	812
Configuring MSTP Switch Settings. . . . . . . . .	813
Configuring MSTP Interface Settings . . . . . . .	814
STP Configuration Examples . . . . . . . . . . . . . .	815
STP Configuration Example. . . . . . . . . . . . .	815
MSTP Configuration Example . . . . . . . . . . .	817
RSTP-PV Access Switch Configuration
Example . . . . . . . . . . . . . . . . . . . . . . .	820

23 Discovering Network Devices . . . . . . . . 825

Device Discovery Overview . . . . . . . . . . . . . . .	825
What Is ISDP? . . . . . . . . . . . . . . . . . . .	825
What is LLDP? . . . . . . . . . . . . . . . . . . .	825
What is LLDP-MED? . . . . . . . . . . . . . . . .	826
Why are Device Discovery Protocols
Needed? . . . . . . . . . . . . . . . . . . . . . .	826
Default IDSP and LLDP Values . . . . . . . . . . . . .	827
Configuring ISDP and LLDP (Web) . . . . . . . . . . .	829
ISDP Global Configuration . . . . . . . . . . . . .	829
ISDP Cache Table . . . . . . . . . . . . . . . . .	830
ISDP Interface Configuration. . . . . . . . . . . .	831
ISDP Statistics . . . . . . . . . . . . . . . . . . .	832
LLDP Configuration . . . . . . . . . . . . . . . . .	833

Contents 27

LLDP Statistics . . . . . . . . . . . . . . . . . .	835
LLDP Connections. . . . . . . . . . . . . . . . .	836
LLDP-MED Global Configuration . . . . . . . . .	838
LLDP-MED Interface Configuration. . . . . . . .	839
LLDP-MED Local Device Information. . . . . . .	840
LLDP-MED Remote Device Information . . . . .	840
Configuring ISDP and LLDP (CLI) . . . . . . . . . . .	841
Configuring Global ISDP Settings. . . . . . . . .	841
Enabling ISDP on a Port . . . . . . . . . . . . .	842
Viewing and Clearing ISDP Information . . . . .	842
Configuring Global LLDP Settings. . . . . . . . .	843
Configuring Port-based LLDP Settings . . . . . .	843
Viewing and Clearing LLDP Information . . . . .	844
Configuring LLDP-MED Settings . . . . . . . . .	845
Viewing LLDP-MED Information . . . . . . . . .	846
Device Discovery Configuration Examples . . . . . .	846
Configuring ISDP . . . . . . . . . . . . . . . . .	846
Configuring LLDP . . . . . . . . . . . . . . . . .	847

		24 Port-Based Traffic Control . . . . . . . . . .	849
		Port-Based Traffic Control Overview . . . . . . . . .	849
		What is Flow Control?. . . . . . . . . . . . . . .	850
		What is Storm Control? . . . . . . . . . . . . . .	850
		What are Protected Ports? . . . . . . . . . . . .	851
		What is Error Recovery? . . . . . . . . . . . . .	851
		What is Link Local Protocol Filtering? . . . . . .	851
		What is Loop Protection? . . . . . . . . . . . . .	853
		Default Port-Based Traffic Control Values . . . . . .	854
		Configuring Port-Based Traffic Control (Web) . . . .	855
		Flow Control (Global Port Parameters) . . . . . .	855
28		Contents

Storm Control . . . . . . . . . . . . . . . . . . . .	856
Protected Port Configuration . . . . . . . . . . . .	858
LLPF Configuration . . . . . . . . . . . . . . . . .	860
Configuring Port-Based Traffic Control (CLI) . . . . . .	862
Configuring Flow Control and Storm Control . . . . 862
Configuring Protected Ports . . . . . . . . . . . .	863
Configuring LLPF . . . . . . . . . . . . . . . . . .	864
Port-Based Traffic Control Configuration
Example . . . . . . . . . . . . . . . . . . . . . . . . .	865

25 Layer-2 Multicast Features . . . . . . . .	. .	867
L2 Multicast Overview. . . . . . . . . . . . . . .	. . .	867
Multicast Flooding and Forwarding . . . . .	. . .	867
What Are the Multicast Bridging Features? .	. . .	868
What Is L2 Multicast Traffic?. . . . . . . . .	. . .	869
What Is IGMP Snooping?. . . . . . . . . . .	. . .	869
What Is MLD Snooping? . . . . . . . . . . .	. . .	871
What Is Multicast VLAN Registration? . . . .	. . .	873
When Are Layer-3 Multicast Features
Required? . . . . . . . . . . . . . . . . . . .	. . .	874
What Are GARP and GMRP? . . . . . . . . .	. . .	874
Snooping Switch Restrictions. . . . . . . . . . .	. . .	876
MAC Address-Based Multicast Group . . . .	. . .	876

Topologies Where the Multicast Source

Is Not Directly Connected to the Querier. . . . . . 876

Using Static Multicast MAC Configuration. . . . .	876
IGMP Snooping and GMRP. . . . . . . . . . . . .	876
Default L2 Multicast Values . . . . . . . . . . . . . . .	877
Configuring L2 Multicast Features (Web) . . . . . . . .	879
Multicast Global Parameters . . . . . . . . . . . .	879
Contents			29

Bridge Multicast Group . . . . . . . . . . . . . .	880
MRouter Status . . . . . . . . . . . . . . . . . .	883
General IGMP Snooping . . . . . . . . . . . . .	884
Global Querier Configuration . . . . . . . . . . .	887
VLAN Querier . . . . . . . . . . . . . . . . . . .	888
VLAN Querier Status . . . . . . . . . . . . . . .	890
MFDB IGMP Snooping Table . . . . . . . . . . .	891
MLD Snooping General . . . . . . . . . . . . . .	892
MLD Snooping Global Querier Configuration. . .	894
MLD Snooping VLAN Querier. . . . . . . . . . .	895
MLD Snooping VLAN Querier Status . . . . . . .	897
MFDB MLD Snooping Table . . . . . . . . . . .	898
MVR Global Configuration . . . . . . . . . . . .	899
MVR Members . . . . . . . . . . . . . . . . . .	900
MVR Interface Configuration . . . . . . . . . . .	901
MVR Statistics . . . . . . . . . . . . . . . . . .	903
GARP Timers . . . . . . . . . . . . . . . . . . .	904
GMRP Parameters . . . . . . . . . . . . . . . .	906
MFDB GMRP Table . . . . . . . . . . . . . . . .	908
Configuring L2 Multicast Features (CLI) . . . . . . . .	909
Configuring Layer-2 Multicasting . . . . . . . . .	909
Configuring IGMP Snooping on VLANs. . . . . .	910
Configuring IGMP Snooping Querier . . . . . . .	911
Configuring MLD Snooping on VLANs . . . . . .	912
Configuring MLD Snooping Querier . . . . . . .	913
Configuring MVR . . . . . . . . . . . . . . . . .	914
Configuring GARP Timers and GMRP. . . . . . .	916
Case Study on a Real-World Network Topology . . .	917
Multicast Snooping Case Study . . . . . . . . .	917

30 Contents