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Dell Networking 7048 User's Configuration Guide - Page 575

Limitations and Recommendations, must be enabled on the primary VLAN.

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Limitations and Recommendations • Only a single isolated VLAN can be associated with a primary VLAN. Multiple community VLANs can be associated with a primary VLAN. • Trunk and general modes are not supported on private VLAN ports. • Do not configure access ports using the VLANs participating in any of the private VLANs. • Multiple primary VLANs may be configured. Each primary VLAN must be unique and each defines a separate private VLAN domain. The operator must take care to use only the secondary VLANs associated with the primary VLAN of a domain. • Private VLANs cannot be enabled on a preconfigured interface. The interface must physically exist in the switch. • Secondary (community and isolated) VLANS are associated to the same multiple spanning tree instance as the primary VLAN. • GVRP/MVRP cannot be enabled after the private VLAN is configured. The administrator will need to disable both before configuring the private VLAN. • DHCP snooping can be configured on the primary VLAN. If it is enabled for a secondary VLAN, the configuration does not take effect if a primary VLAN is already configured. • If IP source guard is enabled on private VLAN ports, then DHCP snooping must be enabled on the primary VLAN. • Do not configure private VLAN ports on interfaces configured for voice VLAN. • If static MAC addresses are added for the host port, the same static MAC address entry must be added to the associated primary VLAN. This does not need to be replicated for dynamic MAC addresses. • A private VLAN cannot be enabled on a management VLAN. • A private VLAN cannot be enabled on the default VLAN. • VLAN routing can be enabled on private VLANs. It is not very useful to enable routing on secondary VLANs, as the access to them is restricted. However, primary VLANs can be enabled for routing. Configuring VLANs 575

Section	Page
Introduction	49
About This Document	49
Audience	49
Document Conventions	50
Additional Documentation	50
Switch Features	51
System Management Features	52
Multiple Management Options	52
System Time Management	52
Log Messages	53
Integrated DHCP Server	54
Management of Basic Network Information	54
IPv6 Management Features	54
Dual Software Images	54
File Management	55
Switch Database Management Templates	55
Automatic Installation of Firmware and Configuration	55
sFlow	56
SNMP Alarms and Trap Logs	56
CDP Interoperability through ISDP	56
Remote Monitoring (RMON)	56
Stacking Features	57
High Port Count	57
Single IP Management	57
Automatic Firmware Update for New Stack Members	57
Stacking Compatibility with the PowerConnect M6348	57
Master Failover with Transparent Transition	58
Nonstop Forwarding on the Stack	58
Hot Add/Delete and Firmware Synchronization	58
Security Features	58
Configurable Access and Authentication Profiles	58
Password-Protected Management Access	59
Strong Password Enforcement	59
TACACS+ Client	59
RADIUS Support	59
SSH/SSL	60
Inbound Telnet Control	60
Denial of Service	60
Port Protection	60
Captive Portal	61
Dot1x Authentication (IEEE 802.1X)	61
MAC-Based 802.1X Authentication	61
Dot1x Monitor Mode	62
MAC-Based Port Security	62
Access Control Lists (ACL)	62
Time-Based ACLs	63
IP Source Guard (IPSG)	63
DHCP Snooping	63
Dynamic ARP Inspection	63
Protected Ports (Private VLAN Edge)	64
Green Technology Features	65
Energy Detect Mode	65
Energy Efficient Ethernet	65
Power Utilization Reporting	65
Power over Ethernet (PoE) Plus Features	66
Power Over Ethernet (PoE) Plus Configuration	66
PoE Plus Support	66
Switching Features	66
Flow Control Support (IEEE 802.3x)	66
Head of Line Blocking Prevention	66
Jumbo Frames Support	67
Auto-MDI/MDIX Support	67
VLAN-Aware MAC-based Switching	67
Back Pressure Support	67
Auto Negotiation	68
Broadcast Storm Control	68
Port Mirroring	68
Static and Dynamic MAC Address Tables	69
Link Layer Discovery Protocol (LLDP)	69
Link Layer Discovery Protocol (LLDP) for Media Endpoint Devices	69
Connectivity Fault Management (IEEE 802.1ag)	69
switchCisco Protocol Filtering	70
DHCP Layer 2 Relay	70
Virtual Local Area Network Supported Features	70
VLAN Support	70
Port-Based VLANs	70
IP Subnet-based VLAN	71
MAC-based VLAN	71
IEEE 802.1v Protocol-Based VLANs	71
GARP and GVRP Support	71
Voice VLAN	71
Guest VLAN	72
Double VLANs	72
Spanning Tree Protocol Features	73
Spanning Tree Protocol (STP)	73
Spanning Tree Port Settings	73
Rapid Spanning Tree	73
Multiple Spanning Tree	73
Bridge Protocol Data Unit (BPDU) Guard	74
BPDU Filtering	74
Link Aggregation Features	74
Link Aggregation	74
Link Aggregate Control Protocol (LACP)	74
Routing Features	76
Address Resolution Protocol (ARP) Table Management	76
VLAN Routing	76
IP Configuration	76
Open Shortest Path First (OSPF)	76
BOOTP/DHCP Relay Agent	77
IP Helper and UDP Relay	77
Routing Information Protocol	77
Router Discovery	77
Routing Table	77
Virtual Router Redundancy Protocol (VRRP)	78
Tunnel and Loopback Interfaces	78
IPv6 Routing Features	78
IPv6 Configuration	78
IPv6 Routes	79
OSPFv3	79
DHCPv6	79
Quality of Service (QoS) Features	80
Differentiated Services (DiffServ)	80
Class Of Service (CoS)	80
Auto Voice over IP (VoIP)	80
Internet Small Computer System Interface (iSCSI) Optimization	81
Layer 2 Multicast Features	81
MAC Multicast Support	81
IGMP Snooping	81
IGMP Snooping Querier	82
MLD Snooping	82
Multicast VLAN Registration	82
Layer 3 Multicast Features	83
Distance Vector Multicast Routing Protocol	83
Internet Group Management Protocol	83
IGMP Proxy	83
Protocol Independent Multicast—Dense Mode	83
Protocol Independent Multicast—Sparse Mode	84
Protocol Independent Multicast—Source Specific Multicast	84
Protocol Independent Multicast IPv6 Support	84
MLD/MLDv2 (RFC2710/RFC3810)	84
Hardware Overview	85
PowerConnect 7000 Series Front Panel	85
Switch Ports	88
Console Port	89
Out-of-Band Management Port	89
USB Port	89
Reset Button	90
Port and System LEDs	90
Stack Master LED and Stack Number Display	90
PowerConnect 7000 Series Back Panel	90
Expansion Slots for Plug-in Modules	92
Power Supplies	93
Ventilation System	94
Locator LED	94
LED Definitions	95
Port LEDs	95
Module LEDs	97
System LEDs	99
Switch Addresses	100
Using Dell OpenManage Switch Administrator	103
About Dell OpenManage Switch Administrator	103
Starting the Application	104
Understanding the Interface	105
Defining Fields	107
Understanding the Device View	108
Using the Device View Port Features	108
Using the Device View Switch Locator Feature	108
Using the Command-Line Interface	109
Accessing the Switch Through the CLI	109
Console Connection	109
Telnet Connection	110
Understanding Command Modes	111
Entering CLI Commands	113
Using the Question Mark to Get Help	113
Using Command Completion	114
Entering Abbreviated Commands	114
Negating Commands	114
Understanding Error Messages	115
Recalling Commands from the History Buffer	115
Default Settings	117
Setting the IP Address and Other Basic Network Information	121
IP Address and Network Information Overview	121
What Is the Basic Network Information?	121
Why Is Basic Network Information Needed?	122
How Is Basic Network Information Configured?	123
What Is Out-of-Band Management and In-Band Management?	123
Default Network Information	125
Configuring Basic Network Information (Web)	126
Out-of-Band Interface	126
IP Interface Configuration (Default VLAN IP Address)	127
Route Entry Configuration (Switch Default Gateway)	128
Domain Name Server	130
Default Domain Name	131
Host Name Mapping	132
Dynamic Host Name Mapping	133
Configuring Basic Network Information (CLI)	134
Enabling the DHCP Client on the OOB Port	134
Enabling the DHCP Client on the Default VLAN	134
Managing DHCP Leases	135
Configuring Static Network Information on the OOB Port	136
Configuring Static Network Information on the Default VLAN	136
Configuring and Viewing Additional Network Information	137
Basic Network Information Configuration Example	138
Managing a Switch Stack	141
Stacking Overview	141
PowerConnect 7000 Series and M6348 Stacking Compatibility	143
How is the Stack Master Selected?	143
Adding a Switch to the Stack	145
Removing a Switch from the Stack	146
How is the Firmware Updated on the Stack?	146
What is Stacking Standby?	147
What is Nonstop Forwarding?	147
Switch Stack MAC Addressing and Stack Design Considerations	150
NSF Network Design Considerations	150
Why is Stacking Needed?	151
Default Stacking Values	151
Managing and Monitoring the Stack (Web)	152
Unit Configuration	152
Stack Summary	154
Stack Firmware Synchronization	155
Supported Switches	156
Stack Port Summary	157
Stack Port Counters	158
Stack Port Diagnostics	158
NSF Summary	159
Checkpoint Statistics	160
Managing the Stack (CLI)	161
Configuring Stack Member, Stack Port, and NSF Settings	161
Viewing and Clearing Stacking and NSF Information	163
Stacking and NSF Usage Scenarios	163
Basic Failover	164
Preconfiguring a Stack Member	166
NSF in the Data Center	168
NSF and VoIP	169
NSF and DHCP Snooping	170
NSF and the Storage Access Network	171
NSF and Routed Access	173
Configuring Authentication, Authorization, and Accounting	175
AAA Overview	175
Methods	176
Access Lines	177
Authentication	177
Authorization	178
Exec Authorization Capabilities	179
Accounting	180
Authentication Examples	181
Local Authentication Example	181
TACACS+ Authentication Example	182
RADIUS Authentication Example	184
Authorization Examples	185
Local Authorization Example—Direct Login to Privileged EXEC Mode	185
TACACS+ Authorization Example—Direct Login to Privileged EXEC Mode	185
TACACS+ Authorization Example—Administrative Profiles	186
TACACS+ Authorization Example—Custom Administrative Profile	187
TACACS+ Authorization Example—Per-command Authorization	188
RADIUS Authorization Example—Direct Login to Privileged EXEC Mode	189
RADIUS Authorization Example—Administrative Profiles	189
Using RADIUS Servers to Control Management Access	190
How Does RADIUS Control Management Access?	190
Which RADIUS Attributes Does the Switch Support?	192
How Are RADIUS Attributes Processed on the Switch?	194
Using TACACS+ Servers to Control Management Access	195
Which TACACS+ Attributes Does the Switch Support?	196
Default Configurations	197
Method Lists	197
Access Lines (AAA)	197
Access Lines (Non-AAA)	198
Administrative Profiles	198
Monitoring and Logging System Information	201
System Monitoring Overview	201
What System Information Is Monitored?	201
Why Is System Information Needed?	202
Where Are Log Messages Sent?	202
What Are the Severity Levels?	203
What Are the System Startup and Operation Logs?	203
What Is the Log Message Format?	204
What Factors Should Be Considered When Configuring Logging?	205
Default Log Settings	205
Monitoring System Information and Configuring Logging (Web)	207
Device Information	207
System Health	209
System Resources	210
Unit Power Usage History	211
Integrated Cable Test for Copper Cables	212
Optical Transceiver Diagnostics	213
Log Global Settings	215
RAM Log	216
Log File	217
Remote Log Server	217
Email Alert Global Configuration	220
Email Alert Mail Server Configuration	221
Email Alert Subject Configuration	223
Email Alert To Address Configuration	224
Email Alert Statistics	225
Monitoring System Information and Configuring Logging (CLI)	226
Viewing System Information and Enabling the Locator LED	226
Running Cable Diagnostics	226
Configuring Local Logging	227
Configuring Remote Logging	229
Configuring Mail Server Settings	230
Configuring Email Alerts for Log Messages	231
Logging Configuration Examples	233
Configuring Local and Remote Logging	233
Configuring Email Alerting	234
Managing General System Settings	239
System Settings Overview	239
Why Does System Information Need to Be Configured?	240
What Are SDM Templates?	241
Why is the System Time Needed?	242
How Does SNTP Work?	242
What Configuration Is Required for Plug-In Modules?	243
What Are the Key PoE Plus Features for the PC7024P and PC7048P?	243
Default General System Information	245
Configuring General System Settings (Web)	246
System Information	246
CLI Banner	249
SDM Template Preference	250
Clock	251
SNTP Global Settings	252
SNTP Authentication	253
SNTP Server	255
Summer Time Configuration	259
Time Zone Configuration	260
Card Configuration	261
Slot Summary	262
Supported Cards	263
Power Over Ethernet Global Configuration (7024P/7048P Only)	264
Power Over Ethernet Interface Configuration (7024P/7048P Only)	265
Configuring System Settings (CLI)	267
Configuring System Information	267
Configuring the Banner	268
Managing the SDM Template	269
Configuring SNTP Authentication and an SNTP Server	269
Setting the System Time and Date Manually	271
Configuring the Expansion Slots	272
Configuring PoE Settings (7024P/7048P Only)	273
General System Settings Configuration Examples	276
Configuring System and Banner Information	276
Configuring SNTP	279
Configuring the Time Manually	281
Configuring SNMP	283
SNMP Overview	283
What Is SNMP?	283
What Are SNMP Traps?	284
Why Is SNMP Needed?	285
Default SNMP Values	285
Configuring SNMP (Web)	287
SNMP Global Parameters	287
SNMP View Settings	288
Access Control Group	290
SNMPv3 User Security Model (USM)	292
Communities	295
Notification Filter	297
Notification Recipients	298
Trap Flags	301
OSPFv2 Trap Flags	302
OSPFv3 Trap Flags	303
Trap Log	304
Configuring SNMP (CLI)	305
Configuring the SNMPv3 Engine ID	305
Configuring SNMP Views, Groups, and Users	306
Configuring Communities	309
Configuring SNMP Notifications (Traps and Informs)	311
SNMP Configuration Examples	314
Configuring SNMPv1 and SNMPv2	314
Configuring SNMPv3	315
Managing Images and Files	319
Image and File Management Overview	319
What Files Can Be Managed?	319
Why Is File Management Needed?	321
What Methods Are Supported for File Management?	323
What Factors Should Be Considered When Managing Files?	323
How Is the Running Configuration Saved?	325
Managing Images and Files (Web)	326
File System	326
Active Images	327
USB Flash Drive	328
File Download	329
File Upload	331
Copy Files	333
Managing Images and Files (CLI)	334
Downloading and Activating a New Image (TFTP)	334
Managing Files in Internal Flash	335
Managing Files on a USB Flash Device	336
Uploading a Configuration File (SCP)	336
Managing Configuration Scripts (SFTP)	337
File and Image Management Configuration Examples	338
Upgrading the Firmware	338
Managing Configuration Scripts	341
Managing Files by Using the USB Flash Drive	343
Automatically Updating the Image and Configuration	345
Auto Configuration Overview	345
What Is USB Auto Configuration?	346
What Files Does USB Auto Configuration Use?	346
How Does USB Auto Configuration Use the Files on the USB Device?	348
What Is the Setup File Format?	349
What Is the DHCP Auto Configuration Process?	350
Monitoring and Completing the DHCP Auto Configuration Process	355
What Are the Dependencies for DHCP Auto Configuration?	356
Default Auto Configuration Values	357
Managing Auto Configuration (Web)	358
Auto-Install Configuration	358
Managing Auto Configuration (CLI)	359
Managing Auto Configuration	359
Auto Configuration Example	360
Enabling USB Auto Configuration and Auto Image Download	360
Enabling DHCP Auto Configuration and Auto Image Download	362
Monitoring Switch Traffic	363
Traffic Monitoring Overview	363
What is sFlow Technology?	363
What is RMON?	366
What is Port Mirroring?	367
Why is Traffic Monitoring Needed?	368
Default Traffic Monitoring Values	368
Monitoring Switch Traffic (Web)	369
sFlow Agent Summary	369
sFlow Receiver Configuration	370
sFlow Sampler Configuration	371
sFlow Poll Configuration	372
Interface Statistics	373
Etherlike Statistics	374
GVRP Statistics	375
EAP Statistics	376
Utilization Summary	377
Counter Summary	378
Switchport Statistics	379
RMON Statistics	380
RMON History Control Statistics	381
RMON History Table	383
RMON Event Control	384
RMON Event Log	386
RMON Alarms	387
Port Statistics	389
LAG Statistics	390
Port Mirroring	391
Monitoring Switch Traffic (CLI)	393
Configuring sFlow	393
Configuring RMON	395
Viewing Statistics	397
Configuring Port Mirroring	398
Traffic Monitoring Configuration Examples	399
Configuring sFlow	399
Configuring RMON	401
Configuring iSCSI Optimization	403
iSCSI Optimization Overview	403
What Does iSCSI Optimization Do?	404
How Does the Switch Detect iSCSI Traffic Flows?	404
How Is Quality of Service Applied to iSCSI Traffic Flows?	404
How Does iSCSI Optimization Use ACLs?	405
What Information Does the Switch Track in iSCSI Traffic Flows?	405
How Does iSCSI Optimization Interact With Dell EqualLogic Arrays?	407
What Occurs When iSCSI Optimization Is Enabled or Disabled?	407
How Does iSCSI Optimization Interact with Dell Compellent Arrays?	408
Default iSCSI Optimization Values	409
Configuring iSCSI Optimization (Web)	410
iSCSI Global Configuration	410
iSCSI Targets Table	411
iSCSI Sessions Table	412
iSCSI Sessions Detailed	413
Configuring iSCSI Optimization (CLI)	414
iSCSI Optimization Configuration Examples	416
Configuring iSCSI Optimization Between Servers and a Disk Array	416
Configuring Captive Portal	419
Captive Portal Overview	419
What Does Captive Portal Do?	419
Is the Captive Portal Feature Dependent on Any Other Feature?	420
What Factors Should Be Considered When Designing and Configuring a Captive Portal?	421
How Does Captive Portal Work?	422
What Captive Portal Pages Can Be Customized?	423
Default Captive Portal Behavior and Settings	424
Configuring the Captive Portal (Web)	426
Captive Portal Global Configuration	426
Captive Portal Configuration	427
Local User	432
User Group	436
Interface Association	438
Captive Portal Global Status	439
Captive Portal Activation and Activity Status	440
Interface Activation Status	441
Interface Capability Status	442
Client Summary	443
Client Detail	444
Captive Portal Interface Client Status	445
Captive Portal Client Status	446
Configuring Captive Portal (CLI)	447
Configuring Global Captive Portal Settings	447
Creating and Configuring a Captive Portal	448
Configuring Captive Portal Groups and Users	451
Managing Captive Portal Clients	452
Captive Portal Configuration Example	453
Configuration Overview	454
Detailed Configuration Procedures	455
Configuring Port Characteristics	457
Port Overview	457
What Physical Port Characteristics Can Be Configured?	457
What is Link Dependency?	458
What Interface Types are Supported?	460
What is Interface Configuration Mode?	460
What Are the Green Ethernet Features?	462
Default Port Values	463
Configuring Port Characteristics (Web)	464
Port Configuration	464
Link Dependency Configuration	467
Link Dependency Summary	469
Port Green Ethernet Configuration	470
Port Green Ethernet Statistics	471
Port Green Ethernet LPI History	474
Configuring Port Characteristics (CLI)	475
Configuring Port Settings	475
Configuring Link Dependencies	476