HP PROCURVE 6120 Bedienungsanleitung Seite 204
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9-15
Time Protocols
SNTP: Viewing, Selecting, and Configuring
Figure 9-10. Example of SNTP with Time Synchronization Disabled
Disabling the SNTP Mode. If you want to prevent SNTP from being used
even if selected by timesync (or the Menu interface’s Time Sync Method param-
eter), configure the SNTP mode as disabled.
For example, if the switch is running SNTP in Unicast mode with an SNTP
server at 10.28.227.141 and a server version of 3 (the default), no sntp changes
the SNTP configuration as shown below, and disables time synchronization
on the switch.
Figure 9-11. Example of Disabling Time Synchronization by Disabling the SNTP Mode
Syntax:
no sntp
Disables SNTP by changing the SNTP mode configuration to
Disabled.
Even though the Time Sync Mode is set to Sntp,
time synchronization is disabled because no
sntp has disabled the SNTP Mode parameter.
- August 2009 1
- 3 Using the Menu Interface 5
- 8 Configuring IP Addressing 9
- 9 Time Protocols 9
- 11 Port Trunking 11
- 12 Port Traffic Controls 12
- A File Transfers 14
- C Troubleshooting 17
- D MAC Address Management 19
- E Monitoring Resources 19
- Product Documentation 22
- Software Feature Index 23
- Intelligent Edge Software 24
- Features 24
- Getting Started 27
- Introduction 28
- Conventions 28
- Command Prompts 29
- Screen Simulations 29
- Sources for More Information 30
- Online Help 32
- Command Line Interface 33
- Web Browser Interface 33
- Need Only a Quick Start? 34
- Advantages of Using the CLI 40
- Interface 41
- Web Browser Interfaces 44
- Using the Menu Interface 49
- Command Line (CLI) option.) 51
- Main Menu Features 55
- 1. VLAN Support 61
- entry in 61
- Menu Features List 62
- Where To Go From Here 63
- Accessing the CLI 65
- Using the CLI 65
- Privilege Levels at Logon 66
- Privilege Level Operation 67
- Manager Privileges 68
- How To Move Between Levels 70
- ? symbol lists the 71
- Listing Command Options 73
- Displaying CLI “Help” 74
- Configuration Modes 76
- CLI Control and Editing 79
- For example: 80
- Using a Command Alias 81
- CLI Shortcut Keystrokes 83
- General Features 86
- Starting a Web Browser 87
- ProCurve Manager Plus (PCM+) 88
- First time install 89
- Browser Interface Session 90
- [Fault Detection] key.) 91
- Using a User Name 93
- If You Lose the Password 93
- The Help Button 94
- Support/Mgmt URLs Feature 95
- Support URL 96
- Port Utilization 100
- Status Reporting Features 101
- Port Status 102
- The Alert Log 103
- The Status Bar 105
- Contents 109
- Configuration File Management 111
- Overview 111
- Using the CLI To Implement 114
- Configuration Changes 114
- Optional Reboot 120
- Switch Command 120
- Image Options 122
- Will boot from primary flash 123
- Switch Software Downloads 124
- Caution: 126
- No Undo! 126
- Rebooting the Switch 127
- Setting the Default Flash 129
- ProCurve(config)# boot 130
- Using Reload 131
- Multiple Configuration Files 133
- General Operation 134
- Configuration Enabled 137
- Command Page 138
- Erasing a Startup-Config File 143
- Connected Host 148
- DHCP Option 66 149
- Operating Notes 150
- Log Messages 151
- Web, and Inbound Telnet 154
- Interface Access 155
- Parameters 155
- and reload 160
- Remote Management Sessions 162
- System Information 163
- (config)# time timezone -480 169
- [System Info] 170
- [Apply Changes] 170
- [?] in the web 170
- Configuring IP Addressing 171
- IP Configuration 172
- Live (TTL) 175
- [IP Configuration] 180
- DHCP/Bootp Operation 182
- ■ For Bootp operation: 184
- ■ For DHCP operation: 184
- Downloads 186
- Enabling IP Preserve 187
- Time Protocols 190
- Operation 192
- Configuring 193
- – TIMEP (the default) 206
- SNTP Servers 214
- Configured 215
- Port Status and Configuration 216
- Menu: Port Configuration 221
- Dynamically updates 225
- Error Messages 227
- Custom” Command 228
- Viewing Transceiver Status 229
- Been Inserted 244
- Configuring UDLD 247
- Enabling UDLD 248
- Viewing UDLD Information 250
- Port 4 is shown as blocked 251
- Port Trunking 253
- Trunk Configuration Methods 256
- of the Menu interface 260
- Trunk Group 261
- [Enter] 262
- “Up” Links 266
- Standby Link 266
- [Port Status] 269
- Table 11-4. LACP Trunk Types 271
- Default Port Operation 273
- LACP Notes and Restrictions 274
- “Trunk” Option 278
- Trunked Links 279
- Port Traffic Controls 282
- Jumbo Frames 283
- Operating Rules 284
- SNMP Implementation 288
- Troubleshooting 292
- Applications 293
- SNMP Management Features 297
- SNMP Version 3 Commands 299
- Enabling SNMPv3 300
- SNMPv3 Users 300
- Group Access Levels 304
- SNMPv3 Communities 304
- Two Operator Access Levels 305
- Communities 306
- SNMP Notifications 310
- ■ Access Security Guide: 311
- SNMPv1 and SNMPv2c Traps 312
- Enabling SNMPv2c Informs 314
- SNMPv2c Inform 315
- Enabling Link-Change Traps 321
- ■ SNMP communities 324
- Configuring Listening Mode 326
- Advanced Management: RMON 327
- Terminology 329
- General LLDP Operation 331
- Configuration Options 332
- ■ IEEE P802.1AB 334
- LLDP Operating Rules 335
- Configuring LLDP Operation 336
- ■ Chassis ID (TLV) 344
- ■ Port Type (TLV subelement) 344
- ■ Port ID (TLV) 344
- TLV-Type > 345
- Advertisements 346
- LLDP-MED Fast Start Control 352
- ■ Voice VLAN ID (VID) 353
- Displaying Advertisement Data 360
- Telephone) Source 364
- Displaying LLDP Statistics 365
- LLDP Operating Notes 367
- LLDP and CDP Data Management 369
- CDP Operation and Commands 371
- ■ show cdp displays 374
- File Transfers 375
- Downloading Switch Software 377
- [E] (for Edit) 379
- [Enter] to begin 380
- Enabling TFTP 383
- Using Auto-TFTP 385
- Using Secure Copy and SFTP 386
- The SCP/SFTP Process 387
- Command Options 389
- Authentication 390
- SCP/SFTP Operating Notes 390
- 392
- \---oper_keys 392
- authorized_keys 392
- PC or UNIX Workstation 393
- Primary or Secondary Flash 395
- Switch-to-Switch Download 396
- Copying Software Images 399
- ProCurve# show tech custom 402
- No SHOW-TECH file found 402
- Host, USB Device, PC or UNIX 404
- Workstation 404
- Status and Counters Data 411
- General System Information 413
- Menu Access 415
- CLI Access 416
- Control Status 418
- CLI Access to MSTP Data 425
- VLAN Information 427
- Traffic Mirroring 430
- Mirroring Terminology 431
- Mirrored Traffic Destinations 433
- Monitored Traffic Sources 433
- Mirroring Sessions 433
- Mirroring Configuration 434
- Configuration 435
- Mirroring 436
- Configuration Steps 437
- Local Mirroring Overview 440
- Traffic Selection Options 443
- Mirroring-Source Restrictions 443
- Local Mirroring Source: 445
- Syntax: show monitor 446
- Maximum Supported Frame Size 449
- Untagged, Mirrored Traffic 451
- Troubleshooting Mirroring 454
- Troubleshooting Approaches 459
- Unusual Network Activity 463
- IGMP-Related Problems 464
- LACP-Related Problems 465
- QoS-Related Problems 468
- Radius-Related Problems 469
- Problems 470
- SSH-Related Problems 471
- TACACS-Related Problems 473
- VLAN-Related Problems 475
- Problem: This switch detects 477
- Switch Problems 478
- CLI: Displaying the Event Log 486
- Event Log and SNMP Messages 487
- Log Throttle Periods 488
- Example of Log Throttling 488
- Debug/Syslog Operation 491
- ■ Up to six Syslog servers 492
- Destinations 498
- Debug Command 499
- New LSAs added to database 500
- enables only the 500
- Debug Destinations 501
- Logging Command 502
- Configuring a Syslog Server 503
- Adding a Priority Description 506
- Sent to a Syslog Server 507
- Diagnostic Tools 510
- Port Auto-Negotiation 511
- Ping and Link Tests 511
- CLI: Ping Test 513
- Link Tests 514
- Traceroute Command 515
- [Ctrl][C] keys 516
- Restoring a Flash Image 531
- [Enter]: 532
- DNS Resolver 533
- Basic Operation 534
- DNS-Compatible Commands 535
- Configuring a DNS Entry 536
- Traceroute Target 538
- First-Hop Router (“B”) 538
- Event Log Messages 541
- MAC Address Management 542
- Determining MAC Addresses 544
- Switch MAC Address Allocation 546
- 6120G/XG 546
- Viewing the MAC Addresses of 548
- Connected Devices 548
- Monitoring Resources 549
- Policy Enforcement Engine 550
- Available 551
- ■ Alaska 552
- ■ Canada and Continental US 552
- ■ Middle Europe and Portugal 552
- ■ Southern Hemisphere 552
- ■ Western Europe 552
- Concepts 556
- OOBM and Switch Applications 560
- OOBM Configuration 561
- OOBM enable/disable 562
- OOBM port enable/disable 563
- OOBM Show Commands 565
- Show OOBM IP configuration 566
- Show OOBM ARP information 566
- Application Server Commands 567
- Application Client Commands 569
- Numerics 572
- 2 – Index 573
- Index – 3 574
- 4 – Index 575
- Index – 5 576
- 6 – Index 577
- Index – 7 578
- 8 – Index 579
- Index – 9 580
- 10 – Index 581
- Index – 11 582
- 12 – Index 583
- Index – 13 584
- 14 – Index 585
- Index – 15 586
- 16 – Index 587
- Index – 17 588
- *5992-5523* 589
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