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Time Protocols
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
TimeP Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
SNTP Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Overview: Selecting a Time Synchronization Protocol or Turning Off
Time Protocol Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
General Steps for Running a Time Protocol on the Switch . . . . . . . . . 9-3
Disabling Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
SNTP: Viewing, Selecting, and Configuring . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Menu: Viewing and Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
CLI: Viewing and Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Viewing the Current SNTP Configuration . . . . . . . . . . . . . . . . . . . . 9-8
Configuring (Enabling or Disabling) the SNTP Mode . . . . . . . . . . 9-9
TimeP: Viewing, Selecting, and Configuring . . . . . . . . . . . . . . . . . . . . . . . . 9-14
Menu: Viewing and Configuring TimeP . . . . . . . . . . . . . . . . . . . . . . . . 9-15
CLI: Viewing and Configuring TimeP . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
Viewing the Current TimeP Configuration . . . . . . . . . . . . . . . . . . 9-17
Configuring (Enabling or Disabling) the TimeP Mode . . . . . . . . 9-18
SNTP Unicast Time Polling with Multiple SNTP Servers . . . . . . . . . . . . . 9-21
Address Prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
Adding and Deleting SNTP Server Addresses . . . . . . . . . . . . . . . . . . . 9-22
Menu Interface Operation with Multiple SNTP Server Addresses
Configured . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23
SNTP Messages in the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23
- ProCurve Switches 1
- ProCurve 3
- Switch 2610 Series 3
- Switch 2610-PWR Series 3
- Management and Configuration 3
- 8 Configuring IP Addressing 8
- 9 Time Protocols 9
- 12 Port Trunking 12
- A File Transfers 14
- C Troubleshooting 15
- D MAC Address Management 17
- Product Documentation 19
- Software Feature Index 20
- Getting Started 25
- Introduction 26
- Conventions 26
- Command Prompts 27
- Screen Simulations 27
- Sources for More Information 28
- Need Only a Quick Start? 30
- Advantages of Using the CLI 34
- Using the Menu Interface 39
- Command Line (CLI) option.) 41
- Main Menu Features 45
- [S] (for the 48
- [C] (for 48
- [B] (for the Back action) 48
- Menu Features List 52
- Where To Go From Here 53
- Accessing the CLI 56
- Using the CLI 56
- Privilege Levels at Logon 57
- Privilege Level Operation 58
- Manager Privileges 59
- How To Move Between Levels 61
- ? symbol lists the 62
- Command Option Displays 64
- Configuration Modes 67
- CLI Control and Editing 70
- General Features 73
- Session with the Switch 74
- Plus (PCM+) 75
- First-Time 76
- Install Alert 76
- Interface Session 77
- Using the Passwords 80
- Using the User Names 80
- If You Lose a Password 80
- The Help Button 81
- Support/Mgmt URLs Feature 82
- Support URL 83
- Status Reporting Features 84
- Port Utilization 85
- The Alert Log 88
- The Status Bar 90
- Management 97
- Using the CLI To Implement 100
- Configuration Changes 100
- Interfaces To Implement 103
- [Enter] key, then 104
- [S] (for Save) 104
- [C] (for Cancel) 104
- Reboot Switch option 105
- Interface 106
- Image Options 107
- The unequal code 108
- Switch Software Downloads 109
- Caution--No 111
- Rebooting the Switch 112
- Operating Notes 116
- Multiple Configuration Files 117
- General Operation 118
- Configuration Enabled 120
- Erasing a Startup-Config File 127
- Serially Connected Host 130
- Connected Host 131
- Contents 133
- Overview 134
- Web, and Telnet 135
- Interface Access 136
- Parameters 136
- ■ VT100 operation 139
- ■ 19,200 baud 139
- ■ No flow control 139
- ■ 10-minute inactivity time 139
- ■ Critical log events 139
- Denying Interface Access by 141
- Terminating Remote 141
- Management Sessions 141
- System Information 142
- System Info 147
- [?] in the web 147
- Configuring IP Addressing 149
- IP Configuration 151
- Live (TTL) 153
- [E] (for Edit) 154
- IP Configuration] 159
- DHCP/Bootp Operation 160
- ■ For Bootp operation: 163
- ■ For DHCP operation: 163
- File Downloads 164
- Time Protocols 169
- Overview: Selecting a Time 171
- Time Protocol Operation 171
- Configuring 172
- Broadcast as the SNTP mode 177
- Disabled 181
- – TIMEP (the default) 183
- Time Sync Method 186
- SNTP Servers 189
- Prioritized list of SNTP 190
- Server IP Addresses 190
- Configured 191
- In this example 199
- Current Operating Mode 201
- Configuring Auto-MDIX 205
- Manual Auto-MDIX Override 206
- Per-Port MDI 208
- Configuration 208
- Operating Mode 208
- Viewing Transceiver Status 209
- Jumbo Frames 211
- Operating Rules 212
- Troubleshooting 218
- QoS Passthrough Mode 219
- Indicates QoS Pass-Through 221
- Incoming Packets 222
- Friendly Port 231
- Configuring UDLD 234
- Enabling UDLD 235
- Viewing UDLD Information 237
- Port 4 is shown as blocked 238
- Related Publications 243
- Terminology 243
- Powered Device (PD) Support 244
- Power Priority 245
- Configuring PoE Operation 247
- Cycling Power on a Port 248
- Indicates PoE support for 249
- reserved 252
- PoE Event Log Messages 255
- Port Trunking 259
- Port Status and Configuration 260
- Link Connections 261
- Trunk Configuration Methods 262
- or show ip igmp listing 265
- Port Trunk Group 268
- Default Port Operation 276
- LACP Notes and Restrictions 277
- Applications 283
- SNMP Management Features 286
- SNMP Version 3 Commands 288
- SNMPv3 Enable 289
- SNMP Version 3 Users 290
- Group Access Levels 293
- SNMP Communities 294
- Two Operator Access Levels 295
- SNMP Notification and Traps 300
- matches taglist value 301
- Trap Features 302
- Configuring Trap Receivers 303
- Advanced Management: RMON 307
- LLDP Terminology 311
- General LLDP Operation 312
- LLDP Configuration Options 312
- LLDP Standards Compatibility 315
- LLDP Operating Rules 316
- LLDP Operation and Commands 317
- Note: This value corresponds 318
- LLDP Advertisements” 319
- ■ Chassis ID (TLV) 324
- ■ Port Type (TLV subelement) 324
- ■ Port ID (TLV) 324
- ■ Port Description (TLV) 325
- ■ System Name (TLV) 325
- ■ System Description (TLV) 325
- ■ System Capabilities (TLV) 325
- Displaying Advertisement Data 326
- Advertisements 327
- Displaying LLDP Statistics 331
- LLDP Operating Notes 334
- LLDP and CDP Data Management 335
- CDP Operation and Commands 337
- Per-Port CDP Enable/Disable 338
- ■ show cdp displays 339
- File Transfers 341
- Downloading Switch Software 342
- [Enter] to begin 345
- Using Secure Copy and SFTP 347
- How It Works 348
- The SCP/SFTP Process 349
- Command Options 349
- Authentication 350
- SCP/SFTP Operating Notes 350
- PC or UNIX Workstation 351
- Switch-to-Switch Download 354
- Software 356
- [Enter] 359
- Host, PC, or Unix Workstation 361
- Status and Counters Data 368
- General System Information 370
- Menu Access 371
- CLI Access 371
- Module Information 372
- Port Status 373
- Control Status 374
- [Enter]. The address 379
- Prompt for Selecting 380
- Menu Access to STP Data 382
- CLI Access to STP Data 383
- Loop Protection 384
- Configuring Loop Protection 385
- VLAN Information 388
- Features 391
- [Y]) to select Yes 392
- [Enter], then press [S] (for 393
- Monitored Ports 394
- Troubleshooting Approaches 399
- Unusual Network Activity 403
- Prioritization Problems 404
- IGMP-Related Problems 404
- LACP-Related Problems 405
- Radius-Related Problems 409
- Problems 410
- SSH-Related Problems 411
- Stacking-Related Problems 412
- TACACS-Related Problems 412
- VLAN-Related Problems 414
- Event Log Operation 417
- Range of Events in the Log 419
- Range of Log Events Displayed 419
- Log Status Line 419
- Debug and Syslog Operation 421
- Debug Types 422
- - Reserved for system use 423
- Diagnostic Tools 428
- Ping and Link Tests 429
- CLI: Ping or Link Tests 431
- Traceroute Command 436
- Restoring a Flash Image 441
- MAC Address Management 445
- Viewing the MAC Addresses of 450
- Connected Devices 450
- ■ Alaska 453
- ■ Canada and Continental US 453
- ■ Middle Europe and Portugal 453
- ■ Southern Hemisphere 453
- ■ Western Europe 453
- Numerics 457
- 2 – Index 458
- Index – 3 459
- 4 – Index 460
- LLDP neighbor data … 13-53 461
- 6 – Index 462
- Index – 7 463
- 8 – Index 464
- Index – 9 465
- 10 – Index 466
- Index – 11 467
- Development Company, L.P 469
- November 2008 469
- Manual Part Number 469
- 5991-8640 469
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