Dell PowerConnect 7048P User manual

Dell PowerConnect
7000 Series Switch
User’s Configuration
Guide
Regulatory Models: PC7024, PC7024P,
PC7024F, PC7048, PC7048P, PC7048R, and
PC7048R-RA

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.
© 2011 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.
Trademarks used in this text: Dell™, the DELL logo, EqualLogic™, PowerConnect™, and
OpenManage™ are trademarks of Dell Inc. Microsoft®, Windows®, Windows Server®, MS-DOS®,
and Windows Vista®are either trademarks or registered trademarks of Microsoft Corporation in the
United States and/or other countries. sFlow®is a registered trademark of InMon Corporation. Cisco®
is a registered trademark of Cisco Systems. Mozilla®and Firefox®are registered trademarks of the
Mozilla Foundation.
Other trademarks and trade names may be used in this publication to refer to either the entities claiming
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.
Regulatory Models: PC7024, PC7024P, PC7024F, PC7048, PC7048P, PC7048R, and PC7048R-RA
March 2011 Rev. A01

Contents 3
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 49
About This Document . . . . . . . . . . . . . . . . . . 49
Audience . . . . . . . . . . . . . . . . . . . . . . . . . 49
Document Conventions . . . . . . . . . . . . . . . . . 50
Additional Documentation. . . . . . . . . . . . . . . . 50
2 Switch Features . . . . . . . . . . . . . . . . . . . 51
System Management Features . . . . . . . . . . . . . 52
Multiple Management Options . . . . . . . . . . . 52
System Time Management . . . . . . . . . . . . . 52
Log Messages . . . . . . . . . . . . . . . . . . . 52
Integrated DHCP Server . . . . . . . . . . . . . . 53
Management of Basic Network Information. . . . 53
IPv6 Management Features . . . . . . . . . . . . 53
Dual Software Images . . . . . . . . . . . . . . . 53
File Management . . . . . . . . . . . . . . . . . . 54
Switch Database Management Templates. . . . . 54
Automatic Installation of Firmware and
Configuration . . . . . . . . . . . . . . . . . . . . 54
sFlow . . . . . . . . . . . . . . . . . . . . . . . . 55
SNMP Alarms and Trap Logs . . . . . . . . . . . . 55
CDP Interoperability through ISDP . . . . . . . . . 55
Remote Monitoring (RMON) . . . . . . . . . . . . 55

4Contents
Stacking Features . . . . . . . . . . . . . . . . . . . . 56
High Port Count . . . . . . . . . . . . . . . . . . . 56
Single IP Management . . . . . . . . . . . . . . . 56
Automatic Firmware Upgrade for New
Stack Members . . . . . . . . . . . . . . . . . . . 56
Stacking Compatibility with the
PowerConnect M6348 . . . . . . . . . . . . . . . 56
Master Failover with Transparent Transition . . . . 57
Nonstop Forwarding on the Stack . . . . . . . . . 57
Hot Add/Delete and Firmware
Synchronization . . . . . . . . . . . . . . . . . . . 57
Security Features . . . . . . . . . . . . . . . . . . . . 57
Configurable Access and Authentication
Profiles . . . . . . . . . . . . . . . . . . . . . . . 57
Password-Protected Management Access . . . . 58
Strong Password Enforcement . . . . . . . . . . . 58
TACACS+ Client . . . . . . . . . . . . . . . . . . . 58
RADIUS Support . . . . . . . . . . . . . . . . . . 58
SSH/SSL. . . . . . . . . . . . . . . . . . . . . . . 59
Inbound Telnet Control . . . . . . . . . . . . . . . 59
Denial of Service . . . . . . . . . . . . . . . . . . 59
Captive Portal . . . . . . . . . . . . . . . . . . . . 59
Dot1x Authentication (IEEE 802.1X) . . . . . . . . . 60
MAC-Based 802.1X Authentication . . . . . . . . . 60
Dot1x Monitor Mode . . . . . . . . . . . . . . . . 60
MAC-Based Port Security . . . . . . . . . . . . . 60
Access Control Lists (ACL) . . . . . . . . . . . . . 61
Time-Based ACLs . . . . . . . . . . . . . . . . . . 61
IP Source Guard (IPSG). . . . . . . . . . . . . . . 61
DHCP Snooping . . . . . . . . . . . . . . . . . . . 62
Dynamic ARP Inspection . . . . . . . . . . . . . . 62
Protected Ports (Private VLAN Edge). . . . . . . . 62

Contents 5
Green Technology Features . . . . . . . . . . . . . . . 63
Energy Detect Mode . . . . . . . . . . . . . . . . 63
Energy Efficient Ethernet . . . . . . . . . . . . . . 63
Power Utilization Reporting . . . . . . . . . . . . 63
Power over Ethernet (PoE) Plus Features . . . . . . . . 63
Power Over Ethernet (PoE) Plus
Configuration . . . . . . . . . . . . . . . . . . . . 63
PoE Plus Support . . . . . . . . . . . . . . . . . . 64
Switching Features . . . . . . . . . . . . . . . . . . . 64
Flow Control Support (IEEE 802.3x) . . . . . . . . . 64
Head of Line Blocking Prevention . . . . . . . . . 64
Jumbo Frames Support . . . . . . . . . . . . . . . 64
Auto-MDI/MDIX Support . . . . . . . . . . . . . . 64
VLAN-Aware MAC-based Switching. . . . . . . . 65
Back Pressure Support . . . . . . . . . . . . . . . 65
Auto Negotiation . . . . . . . . . . . . . . . . . . 65
Broadcast Storm Control . . . . . . . . . . . . . . 65
Port Mirroring. . . . . . . . . . . . . . . . . . . . 66
Static and Dynamic MAC Address Tables . . . . . 66
Link Layer Discovery Protocol (LLDP) . . . . . . . 66
Link Layer Discovery Protocol (LLDP) for
Media Endpoint Devices . . . . . . . . . . . . . . 66
Connectivity Fault Management
(IEEE 802.1ag) . . . . . . . . . . . . . . . . . . . . 67
Cisco Protocol Filtering. . . . . . . . . . . . . . . 67
DHCP Layer 2 Relay. . . . . . . . . . . . . . . . . 67
Virtual Local Area Network Supported Features . . . . 68
VLAN Support. . . . . . . . . . . . . . . . . . . . 68
Port-Based VLANs . . . . . . . . . . . . . . . . . 68
IP Subnet-based VLAN . . . . . . . . . . . . . . . 68
MAC-based VLAN . . . . . . . . . . . . . . . . . 68
IEEE 802.1v Protocol-Based VLANs . . . . . . . . 68

6Contents
GARP and GVRP Support . . . . . . . . . . . . . . 69
Voice VLAN . . . . . . . . . . . . . . . . . . . . . 69
Guest VLAN . . . . . . . . . . . . . . . . . . . . . 69
Double VLANs. . . . . . . . . . . . . . . . . . . . 69
Spanning Tree Protocol Features . . . . . . . . . . . . 70
Spanning Tree Protocol (STP) . . . . . . . . . . . 70
Spanning Tree Port Settings . . . . . . . . . . . . 70
Rapid Spanning Tree . . . . . . . . . . . . . . . . 70
Multiple Spanning Tree . . . . . . . . . . . . . . . 70
Bridge Protocol Data Unit (BPDU) Guard. . . . . . 71
BPDU Filtering . . . . . . . . . . . . . . . . . . . 71
Link Aggregation Features . . . . . . . . . . . . . . . . 71
Link Aggregation . . . . . . . . . . . . . . . . . . 71
Link Aggregate Control Protocol (LACP) . . . . . . 71
Routing Features . . . . . . . . . . . . . . . . . . . . . 72
Address Resolution Protocol (ARP) Table
Management . . . . . . . . . . . . . . . . . . . . 72
VLAN Routing . . . . . . . . . . . . . . . . . . . . 72
IP Configuration . . . . . . . . . . . . . . . . . . . 72
Open Shortest Path First (OSPF) . . . . . . . . . . 72
BOOTP/DHCP Relay Agent . . . . . . . . . . . . . 73
IP Helper and UDP Relay . . . . . . . . . . . . . . 73
Routing Information Protocol . . . . . . . . . . . . 73
Router Discovery . . . . . . . . . . . . . . . . . . 73
Routing Table . . . . . . . . . . . . . . . . . . . . 73
Virtual Router Redundancy Protocol (VRRP) . . . . 74
Tunnel and Loopback Interfaces . . . . . . . . . . 74
IPv6 Routing Features . . . . . . . . . . . . . . . . . . 74
IPv6 Configuration . . . . . . . . . . . . . . . . . 74
IPv6 Routes . . . . . . . . . . . . . . . . . . . . . 75

Contents 7
OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . 75
DHCPv6 . . . . . . . . . . . . . . . . . . . . . . . 75
Quality of Service (QoS) Features . . . . . . . . . . . . 76
Differentiated Services (DiffServ) . . . . . . . . . 76
Class Of Service (CoS) . . . . . . . . . . . . . . . 76
Auto Voice over IP (VoIP). . . . . . . . . . . . . . 76
Internet Small Computer System Interface
(iSCSI) Optimization. . . . . . . . . . . . . . . . . 77
Layer 2 Multicast Features . . . . . . . . . . . . . . . 77
MAC Multicast Support. . . . . . . . . . . . . . . 77
IGMP Snooping . . . . . . . . . . . . . . . . . . . 77
IGMP Snooping Querier . . . . . . . . . . . . . . 78
MLD Snooping . . . . . . . . . . . . . . . . . . . 78
Multicast VLAN Registration . . . . . . . . . . . . 78
Layer 3 Multicast Features . . . . . . . . . . . . . . . 78
Distance Vector Multicast Routing Protocol . . . . 78
Internet Group Management Protocol . . . . . . . 79
IGMP Proxy . . . . . . . . . . . . . . . . . . . . . 79
Protocol Independent Multicast—Dense
Mode . . . . . . . . . . . . . . . . . . . . . . . . 79
Protocol Independent Multicast—Sparse
Mode . . . . . . . . . . . . . . . . . . . . . . . . 79
Protocol Independent Multicast—Source
Specific Multicast . . . . . . . . . . . . . . . . . 79
Protocol Independent Multicast IPv6 Support . . . 79
MLD/MLDv2 (RFC2710/RFC3810) . . . . . . . . . . 80
3 Hardware Overview. . . . . . . . . . . . . . . . . 81
PowerConnect 7000 Series Front Panel . . . . . . . . . 81
Switch Ports . . . . . . . . . . . . . . . . . . . . 84
Console Port . . . . . . . . . . . . . . . . . . . . 85

8Contents
Out-of-Band Management Port. . . . . . . . . . . 85
USB Port . . . . . . . . . . . . . . . . . . . . . . 85
Reset Button . . . . . . . . . . . . . . . . . . . . 86
Port and System LEDs . . . . . . . . . . . . . . . 86
Stack Master LED and Stack Number Display . . . 86
PowerConnect 7000 Series Back Panel . . . . . . . . . 87
Expansion Slots for Plug-in Modules . . . . . . . . 88
Power Supplies . . . . . . . . . . . . . . . . . . . 89
Ventilation System . . . . . . . . . . . . . . . . . 90
Locator LED . . . . . . . . . . . . . . . . . . . . . 90
LED Definitions . . . . . . . . . . . . . . . . . . . . . . 91
Port LEDs . . . . . . . . . . . . . . . . . . . . . . 91
Module LEDs . . . . . . . . . . . . . . . . . . . . 93
System LEDs . . . . . . . . . . . . . . . . . . . . 95
4 Using Dell OpenManage Switch
Administrator . . . . . . . . . . . . . . . . . . . . . 97
About Dell OpenManage Switch Administrator. . . . . 97
Starting the Application . . . . . . . . . . . . . . . . . 98
Understanding the Interface . . . . . . . . . . . . . . . 99
Defining Fields . . . . . . . . . . . . . . . . . . . . . 101
Understanding the Device View . . . . . . . . . . . . 102
Using the Device View Port Features. . . . . . . 102
Using the Device View Switch Locator
Feature . . . . . . . . . . . . . . . . . . . . . . 102

Contents 9
5 Using the Command-Line Interface. . . . 103
Accessing the Switch Through the CLI . . . . . . . . . 103
Console Connection . . . . . . . . . . . . . . . . 103
Telnet Connection . . . . . . . . . . . . . . . . . 104
Understanding Command Modes . . . . . . . . . . . . 105
Entering CLI Commands . . . . . . . . . . . . . . . . . 107
Using the Question Mark to Get Help . . . . . . . 107
Using Command Completion . . . . . . . . . . . . 108
Entering Abbreviated Commands . . . . . . . . . 108
Negating Commands . . . . . . . . . . . . . . . . 108
Understanding Error Messages . . . . . . . . . . 109
Recalling Commands from the History Buffer . . . 109
6 Default Settings. . . . . . . . . . . . . . . . . . . 111
7 Setting the IP Address and Other
Basic Network Information . . . . . . . . . . 115
IP Address and Network Information Overview . . . . 115
What Is the Basic Network Information? . . . . . 115
Why Is Basic Network Information Needed? . . . 116
How Is Basic Network Information
Configured? . . . . . . . . . . . . . . . . . . . . . 117
What Is Out-of-Band Management and
In-Band Management? . . . . . . . . . . . . . . . 117
Default Network Information . . . . . . . . . . . . . . 119
Configuring Basic Network Information (Web) . . . . . 120
Out-of-Band Interface . . . . . . . . . . . . . . . 120

10 Contents
IP Interface Configuration (Default VLAN
IP Address) . . . . . . . . . . . . . . . . . . . . 121
Route Entry Configuration (Switch Default
Gateway) . . . . . . . . . . . . . . . . . . . . . 122
Domain Name Server . . . . . . . . . . . . . . . 124
Default Domain Name . . . . . . . . . . . . . . 125
Host Name Mapping . . . . . . . . . . . . . . . 126
Dynamic Host Name Mapping . . . . . . . . . . 127
Configuring Basic Network Information (CLI). . . . . 128
Enabling the DHCP Client on the OOB Port . . . . 128
Enabling the DHCP Client on the Default
VLAN . . . . . . . . . . . . . . . . . . . . . . . 128
Managing DHCP Leases . . . . . . . . . . . . . 129
Configuring Static Network Information on
the OOB Port . . . . . . . . . . . . . . . . . . . 130
Configuring Static Network Information on
the Default VLAN . . . . . . . . . . . . . . . . . 130
Configuring and Viewing Additional
Network Information . . . . . . . . . . . . . . . 131
Basic Network Information Configuration
Example . . . . . . . . . . . . . . . . . . . . . . . . 132
8 Managing a Switch Stack . . . . . . . . . . . 135
Stacking Overview . . . . . . . . . . . . . . . . . . . 135
PowerConnect 7000 Series and M6348
Stacking Compatibility . . . . . . . . . . . . . . 137
How is the Management Unit Selected? . . . . . 137
Adding a Switch to the Stack . . . . . . . . . . . 138
Removing a Switch from the Stack . . . . . . . . 139
How is the Firmware Updated on the Stack?. . . 140
What is Stacking Standby? . . . . . . . . . . . . 140
What is Nonstop Forwarding? . . . . . . . . . . 140

Contents 11
Switch Stack MAC Addressing and
Stack Design Considerations . . . . . . . . . . . . 143
NSF Network Design Considerations . . . . . . . 144
Why is Stacking Needed? . . . . . . . . . . . . . 144
Default Stacking Values . . . . . . . . . . . . . . . . . 145
Managing and Monitoring the Stack (Web). . . . . . . 146
Unit Configuration . . . . . . . . . . . . . . . . . 146
Stack Summary . . . . . . . . . . . . . . . . . . . 148
Stack Firmware Synchronization . . . . . . . . . . 149
Supported Switches . . . . . . . . . . . . . . . . 150
Stack Port Summary . . . . . . . . . . . . . . . . 151
Stack Port Counters . . . . . . . . . . . . . . . . 152
Stack Port Diagnostics . . . . . . . . . . . . . . . 152
NSF Summary. . . . . . . . . . . . . . . . . . . . 153
Checkpoint Statistics . . . . . . . . . . . . . . . . 154
Managing the Stack (CLI) . . . . . . . . . . . . . . . . 155
Configuring Stack Member and NSF
Settings . . . . . . . . . . . . . . . . . . . . . . . 155
Viewing and Clearing Stacking and
NSF Information . . . . . . . . . . . . . . . . . . 156
Stacking and NSF Usage Scenarios. . . . . . . . . . . 157
Basic Failover. . . . . . . . . . . . . . . . . . . . 158
Preconfiguring a Stack Member . . . . . . . . . . 160
NSF in the Data Center . . . . . . . . . . . . . . . 162
NSF and VoIP . . . . . . . . . . . . . . . . . . . . 163
NSF and DHCP Snooping . . . . . . . . . . . . . . 164
NSF and the Storage Access Network . . . . . . . 165
NSF and Routed Access . . . . . . . . . . . . . . 167

12 Contents
9 Controlling Management Access . . . . . 169
Management Access Control Overview. . . . . . . . 169
What Are the Recommendations for
Management Security? . . . . . . . . . . . . . . 171
What Is an Authentication Profile? . . . . . . . . 171
How Does TACACS+ Control Management
Access? . . . . . . . . . . . . . . . . . . . . . . 172
How Does RADIUS Control Management
Access? . . . . . . . . . . . . . . . . . . . . . . 174
What are RADIUS Server Groups? . . . . . . . . 176
How Does the Switch Determine Which
RADIUS Server to Contact?. . . . . . . . . . . . 176
What Other Features Use Authentication? . . . . 178
Default Management Security Values. . . . . . . . . 178
Controlling Management Access (Web) . . . . . . . 180
Access Profile . . . . . . . . . . . . . . . . . . 180
Authentication Profiles . . . . . . . . . . . . . . 184
Select Authentication. . . . . . . . . . . . . . . 187
Password Management . . . . . . . . . . . . . 188
Last Password Set Result. . . . . . . . . . . . . 190
User Login Configuration . . . . . . . . . . . . . 191
Local User Database . . . . . . . . . . . . . . . 192
Line Password . . . . . . . . . . . . . . . . . . 194
Enable Password . . . . . . . . . . . . . . . . . 194
TACACS+ Settings . . . . . . . . . . . . . . . . 195
RADIUS Global Configuration. . . . . . . . . . . 197
RADIUS Server Configuration . . . . . . . . . . 198
RADIUS Accounting Server Configuration . . . . 200
RADIUS Accounting Server Statistics . . . . . . 202
RADIUS Server Statistics . . . . . . . . . . . . . 203
Authorization Network RADIUS . . . . . . . . . 204
Telnet Server . . . . . . . . . . . . . . . . . . . 205
Denial of Service . . . . . . . . . . . . . . . . . 206

Contents 13
Secure HTTP Configuration . . . . . . . . . . . . 207
Secure Shell Configuration . . . . . . . . . . . . . 210
Secure Public Key Configuration. . . . . . . . . . 211
Controlling Management Access (CLI) . . . . . . . . . 213
Configuring a Management Access List . . . . . . 213
Adding Users to the Local Database . . . . . . . . 215
Configuring and Applying Authentication
Profiles . . . . . . . . . . . . . . . . . . . . . . . 216
Managing Passwords . . . . . . . . . . . . . . . 217
Configuring RADIUS Server Information . . . . . . 219
Configuring TACACS+ Server Information . . . . . 221
Configuring Telnet and SSH Access . . . . . . . . 222
Configuring HTTP and HTTPS Access . . . . . . . 223
Configuring DoS Information . . . . . . . . . . . . 225
Management Access Configuration Examples . . . . . 227
Configuring a Management Access List . . . . . . 227
Configuring the Primary and Secondary
RADIUS Servers . . . . . . . . . . . . . . . . . . 228
Configuring an Authentication Profile . . . . . . . 230
Configuring Password Lockout. . . . . . . . . . . 231
10 Monitoring and Logging System
Information . . . . . . . . . . . . . . . . . . . . . . 235
System Monitoring Overview . . . . . . . . . . . . . . 235
What System Information Is Monitored?. . . . . . 235
Why Is System Information Needed? . . . . . . . 236
Where Are Log Messages Sent? . . . . . . . . . . 236
What Are the Severity Levels? . . . . . . . . . . . 237
What Are the System Startup and
Operation Logs? . . . . . . . . . . . . . . . . . . 237

14 Contents
What Is the Log Message Format? . . . . . . . . 238
What Factors Should Be Considered
When Configuring Logging? . . . . . . . . . . . 239
Default Log Settings . . . . . . . . . . . . . . . . . . 239
Monitoring System Information and
Configuring Logging (Web) . . . . . . . . . . . . . . 240
Device Information . . . . . . . . . . . . . . . . 240
System Health. . . . . . . . . . . . . . . . . . . 242
System Resources . . . . . . . . . . . . . . . . 243
Unit Power Usage History . . . . . . . . . . . . 244
Integrated Cable Test for Copper Cables . . . . . 245
Optical Transceiver Diagnostics . . . . . . . . . 246
Log Global Settings . . . . . . . . . . . . . . . . 248
RAM Log . . . . . . . . . . . . . . . . . . . . . 249
Log File . . . . . . . . . . . . . . . . . . . . . . 250
Remote Log Server . . . . . . . . . . . . . . . . 250
Email Alert Global Configuration . . . . . . . . . 253
Email Alert Mail Server Configuration . . . . . . 254
Email Alert Subject Configuration . . . . . . . . 256
Email Alert To Address Configuration. . . . . . . 257
Email Alert Statistics . . . . . . . . . . . . . . . 258
Monitoring System Information and
Configuring Logging (CLI) . . . . . . . . . . . . . . . 259
Viewing System Information and
Enabling the Locator LED . . . . . . . . . . . . . 259
Running Cable Diagnostics . . . . . . . . . . . . 259
Configuring Local Logging . . . . . . . . . . . . 260
Configuring Remote Logging . . . . . . . . . . . 262
Configuring Mail Server Settings . . . . . . . . . 263
Configuring Email Alerts for Log Messages . . . 264

Contents 15
Logging Configuration Examples . . . . . . . . . . . . 266
Configuring Local and Remote Logging . . . . . . 266
Configuring Email Alerting . . . . . . . . . . . . . 268
11 Managing General System Settings . . . 271
System Settings Overview. . . . . . . . . . . . . . . . 271
Why Does System Information Need to
Be Configured? . . . . . . . . . . . . . . . . . . . 272
What Are SDM Templates?. . . . . . . . . . . . . 273
Why is the System Time Needed? . . . . . . . . . 274
How Does SNTP Work? . . . . . . . . . . . . . . 274
What Configuration Is Required for
Plug-In Modules? . . . . . . . . . . . . . . . . . . 275
What Are the Key PoE Plus Features
for the PC7024P and PC7048P? . . . . . . . . . . . 275
Default General System Information . . . . . . . . . . 277
Configuring General System Settings (Web) . . . . . . 278
System Information . . . . . . . . . . . . . . . . . 278
CLI Banner . . . . . . . . . . . . . . . . . . . . . 281
SDM Template Preference . . . . . . . . . . . . . 282
Clock . . . . . . . . . . . . . . . . . . . . . . . . 283
SNTP Global Settings . . . . . . . . . . . . . . . . 284
SNTP Authentication . . . . . . . . . . . . . . . . 285
SNTP Server . . . . . . . . . . . . . . . . . . . . 287
Summer Time Configuration . . . . . . . . . . . . 291
Time Zone Configuration . . . . . . . . . . . . . . 292
Card Configuration . . . . . . . . . . . . . . . . . 293
Slot Summary . . . . . . . . . . . . . . . . . . . . 294
Supported Cards . . . . . . . . . . . . . . . . . . 295

16 Contents
Power Over Ethernet Global Configuration
(7024P/7048P Only) . . . . . . . . . . . . . . . . 296
Power Over Ethernet Interface
Configuration (7024P/7048P Only). . . . . . . . . 297
Configuring System Settings (CLI) . . . . . . . . . . . 299
Configuring System Information . . . . . . . . . 299
Configuring the Banner . . . . . . . . . . . . . . 300
Managing the SDM Template. . . . . . . . . . . 301
Configuring SNTP Authentication and
an SNTP Server . . . . . . . . . . . . . . . . . . 301
Setting the System Time and Date Manually . . . 303
Configuring the Expansion Slots . . . . . . . . . 304
Configuring PoE Settings
(7024P/7048P Only) . . . . . . . . . . . . . . . . 305
General System Settings Configuration
Examples . . . . . . . . . . . . . . . . . . . . . . . . 308
Configuring System and Banner
Information . . . . . . . . . . . . . . . . . . . . 308
Configuring SNTP . . . . . . . . . . . . . . . . . 310
Configuring the Time Manually . . . . . . . . . . 312
12 Configuring SNMP . . . . . . . . . . . . . . . . . 313
SNMP Overview . . . . . . . . . . . . . . . . . . . . 313
What Is SNMP? . . . . . . . . . . . . . . . . . . 313
What Are SNMP Traps? . . . . . . . . . . . . . 314
Why Is SNMP Needed?. . . . . . . . . . . . . . 315
Default SNMP Values . . . . . . . . . . . . . . . . . 315
Configuring SNMP (Web) . . . . . . . . . . . . . . . 317
SNMP Global Parameters . . . . . . . . . . . . 317
SNMP View Settings . . . . . . . . . . . . . . . 318
Access Control Group . . . . . . . . . . . . . . 320

Contents 17
SNMPv3 User Security Model (USM) . . . . . . . 321
Communities . . . . . . . . . . . . . . . . . . . . 324
Notification Filter . . . . . . . . . . . . . . . . . . 327
Notification Recipients . . . . . . . . . . . . . . . 328
Trap Flags . . . . . . . . . . . . . . . . . . . . . . 331
OSPFv2 Trap Flags . . . . . . . . . . . . . . . . . 332
OSPFv3 Trap Flags . . . . . . . . . . . . . . . . . 333
Trap Log . . . . . . . . . . . . . . . . . . . . . . . 334
Configuring SNMP (CLI) . . . . . . . . . . . . . . . . . 335
Configuring the SNMPv3 Engine ID . . . . . . . . 335
Configuring SNMP Views, Groups, and Users . . . 336
Configuring Communities. . . . . . . . . . . . . . 339
Configuring SNMP Notifications (Traps
and Informs) . . . . . . . . . . . . . . . . . . . . 341
SNMP Configuration Examples . . . . . . . . . . . . . 344
Configuring SNMPv1 and SNMPv2. . . . . . . . . 344
Configuring SNMPv3 . . . . . . . . . . . . . . . . 345
13 Managing Images and Files . . . . . . . . . 349
Image and File Management Overview . . . . . . . . . 349
What Files Can Be Managed? . . . . . . . . . . . 349
Why Is File Management Needed?. . . . . . . . . 351
What Methods Are Supported for File
Management? . . . . . . . . . . . . . . . . . . . 353
What Factors Should Be Considered When
Managing Files? . . . . . . . . . . . . . . . . . . 353
How Is the Running Configuration Saved? . . . . . 355
Managing Images and Files (Web) . . . . . . . . . . . 356
File System . . . . . . . . . . . . . . . . . . . . . 356
Active Images . . . . . . . . . . . . . . . . . . . 357
USB Flash Drive. . . . . . . . . . . . . . . . . . . 358

18 Contents
File Download . . . . . . . . . . . . . . . . . . . 359
File Upload . . . . . . . . . . . . . . . . . . . . 361
Copy Files . . . . . . . . . . . . . . . . . . . . . 363
Managing Images and Files (CLI) . . . . . . . . . . . 364
Downloading and Activating a New
Image (TFTP) . . . . . . . . . . . . . . . . . . . 364
Managing Files in Internal Flash . . . . . . . . . 365
Managing Files on a USB Flash Device . . . . . 366
Uploading a Configuration File (SCP) . . . . . . . 366
Managing Configuration Scripts (SFTP) . . . . . 367
File and Image Management Configuration
Examples . . . . . . . . . . . . . . . . . . . . . . . . 368
Upgrading the Firmware . . . . . . . . . . . . . 368
Managing Configuration Scripts . . . . . . . . . 371
Managing Files by Using the USB Flash
Drive. . . . . . . . . . . . . . . . . . . . . . . . 373
14 Automatically Updating the
Image and Configuration . . . . . . . . . . . . 375
Auto Configuration Overview . . . . . . . . . . . . . 375
What Is USB Auto Configuration? . . . . . . . . 376
What Files Does USB Auto Configuration
Use? . . . . . . . . . . . . . . . . . . . . . . . . 376
How Does USB Auto Configuration Use
the Files on the USB Device? . . . . . . . . . . 377
What Is the Setup File Format? . . . . . . . . . . 378
What Is the DHCP Auto Configuration
Process? . . . . . . . . . . . . . . . . . . . . . 379
Monitoring and Completing the DHCP
Auto Configuration Process . . . . . . . . . . . 383
What Are the Dependencies for DHCP
Auto Configuration?. . . . . . . . . . . . . . . . 384

Contents 19
Default Auto Configuration Values . . . . . . . . . . . 385
Managing Auto Configuration (Web) . . . . . . . . . . 386
Auto-Install Configuration . . . . . . . . . . . . . 386
Managing Auto Configuration (CLI) . . . . . . . . . . . 387
Managing Auto Configuration . . . . . . . . . . . 387
Auto Configuration Example. . . . . . . . . . . . . . . 388
Enabling USB Auto Configuration and
Auto Image Download . . . . . . . . . . . . . . . 388
Enabling DHCP Auto Configuration and
Auto Image Download . . . . . . . . . . . . . . . 390
15 Monitoring Switch Traffic . . . . . . . . . . . 391
Traffic Monitoring Overview . . . . . . . . . . . . . . 391
What is sFlow Technology?. . . . . . . . . . . . . 391
What is RMON?. . . . . . . . . . . . . . . . . . . 394
What is Port Mirroring?. . . . . . . . . . . . . . . 395
Why is Traffic Monitoring Needed? . . . . . . . . 396
Default Traffic Monitoring Values . . . . . . . . . . . . 396
Monitoring Switch Traffic (Web) . . . . . . . . . . . . 397
sFlow Agent Summary . . . . . . . . . . . . . . . 397
sFlow Receiver Configuration . . . . . . . . . . . 398
sFlow Sampler Configuration. . . . . . . . . . . . 399
sFlow Poll Configuration . . . . . . . . . . . . . . 400
Interface Statistics . . . . . . . . . . . . . . . . . 401
Etherlike Statistics . . . . . . . . . . . . . . . . . 402
GVRP Statistics . . . . . . . . . . . . . . . . . . . 403
EAP Statistics. . . . . . . . . . . . . . . . . . . . 404
Utilization Summary . . . . . . . . . . . . . . . . 405
Counter Summary. . . . . . . . . . . . . . . . . . 406
Switchport Statistics . . . . . . . . . . . . . . . . 407

20 Contents
RMON Statistics . . . . . . . . . . . . . . . . . 408
RMON History Control Statistics . . . . . . . . . 409
RMON History Table . . . . . . . . . . . . . . . 411
RMON Event Control . . . . . . . . . . . . . . . 412
RMON Event Log . . . . . . . . . . . . . . . . . 414
RMON Alarms. . . . . . . . . . . . . . . . . . . 415
Port Statistics . . . . . . . . . . . . . . . . . . . 417
LAG Statistics . . . . . . . . . . . . . . . . . . . 418
Port Mirroring . . . . . . . . . . . . . . . . . . . 419
Monitoring Switch Traffic (CLI) . . . . . . . . . . . . 421
Configuring sFlow . . . . . . . . . . . . . . . . . 421
Configuring RMON . . . . . . . . . . . . . . . . 423
Viewing Statistics . . . . . . . . . . . . . . . . . 425
Configuring Port Mirroring . . . . . . . . . . . . 426
Traffic Monitoring Configuration Examples . . . . . . 427
Configuring sFlow . . . . . . . . . . . . . . . . . 427
Configuring RMON . . . . . . . . . . . . . . . . 429
16 Configuring iSCSI Optimization . . . . . . . 431
iSCSI Optimization Overview . . . . . . . . . . . . . 431
When Should iSCSI Optimization Be
Enabled? . . . . . . . . . . . . . . . . . . . . . 432
How Does the Switch Detect iSCSI
Traffic Flows? . . . . . . . . . . . . . . . . . . . 432
How Is Quality of Service Applied to iSCSI
Traffic Flows? . . . . . . . . . . . . . . . . . . . 432
What Information Does the Switch Track in
iSCSI Traffic Flows?. . . . . . . . . . . . . . . . 433
How Does iSCSI Optimization Interact
With Dell EqualLogic Arrays?. . . . . . . . . . . 433
What Occurs When iSCSI is Enabled
or Disabled?. . . . . . . . . . . . . . . . . . . . 434