ProCurve 2510G Series Technical Information Seite 165
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9-13
Time Protocols
SNTP: Viewing, Selecting, and Configuring
If you then viewed the SNTP configuration, you would see the following:
Figure 9-7. Example of SNTP with Time Sychronization 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.
Syntax: no sntp
Disables SNTP by changing the SNTP mode
configuration to 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 9-8. Example of Disabling Time Synchronization by Disabling the SNTP Mode
Even though the Time Sync Mode is set to Sntp,
time synchronization is disabled because no
sntp has disabled the SNTP Mode parameter.
- ProCurve Switches 1
- ProCurve Series 2510 Switches 3
- 3 Using the Menu Interface 6
- 8 Configuring IP Addressing 8
- 9 Time Protocols 9
- 11 Port Trunking 11
- A File Transfers 13
- C Troubleshooting 15
- D MAC Address Management 16
- Product Documentation 17
- Feature Index 18
- Getting Started 21
- Introduction 22
- Conventions 22
- Command Syntax Statements 23
- Command Prompts 23
- Sources for More Information 24
- Need Only a Quick Start? 26
- Advantages of Using the CLI 30
- Using the Menu Interface 35
- Line (CLI) option 37
- Main Menu Features 41
- [S] (for the 44
- [C] (for 44
- [B] (for the Back action) 44
- Menu Features List 48
- Where To Go From Here 49
- Accessing the CLI 52
- Using the CLI 52
- Privilege Levels at Logon 53
- Privilege Level Operation 54
- Manager Privileges 55
- How To Move Between Levels 57
- ? symbol lists the 58
- Command Option Displays 60
- Displaying CLI “Help” 61
- Configuration Modes 63
- CLI Control and Editing 67
- General Features 71
- Session with the Switch 72
- Plus (PCM+) 73
- First-Time 74
- Install Alert 74
- Interface Session 75
- Using the Passwords 78
- Using the User Names 78
- If You Lose a Password 78
- The Help Button 79
- Support/Mgmt URLs Feature 80
- Support URL 81
- Status Reporting Features 84
- Port Utilization 85
- The Alert Log 88
- The Status Bar 91
- Management 96
- Using the CLI To Implement 99
- Interfaces To Implement 102
- Configuration Changes 102
- [Enter] key, then 103
- [S] (for Save) 103
- [C] (for Cancel) 103
- Reboot Switch option 104
- Interface 105
- Image Options 106
- The unequal code 107
- Switch Software Downloads 108
- Caution--No 110
- Rebooting the Switch 111
- Operating Notes 115
- Contents 117
- Overview 118
- Web, and Telnet 119
- Interface Access 120
- Parameters 120
- and reload 123
- Denying Interface Access by 126
- Terminating Remote Management 126
- Sessions 126
- System Information 127
- System Info 132
- [?] in the web 132
- Configuring IP Addressing 133
- IP Configuration 135
- Live (TTL) 137
- [E] (for Edit) 138
- [S] (for Save) 138
- IP Configuration] 143
- DHCP/Bootp Operation 144
- File Downloads 148
- Time Protocols 153
- Overview: Selecting a Time 155
- Synchronization Protocol or 155
- Configuring 156
- Unicast mode, then do the 158
- – TIMEP (the default) 167
- timep still lists the 169
- SNTP Servers 173
- Address Prioritization 174
- Addresses Configured 175
- Port Parameters 178
- In this example 181
- Current Operating Mode 183
- Current Configured Mode 183
- Viewing Transceiver Status 184
- Configuring HP Auto-MDIX 188
- Manual Auto-MDIX Override 189
- Per-Port MDI 190
- Configuration 190
- Operating Mode 190
- QoS Pass-Through Mode 192
- Indicates QoS Pass 194
- Through mode enabled 194
- Friendly port names 203
- Ports Without 203
- "Friendly" Name 203
- Port Trunking 207
- Port Status and Configuration 208
- Link Connections 209
- Trunk Configuration Methods 210
- or show ip igmp listing 213
- Dynamic Port Trunk Group 216
- “Up” Links 219
- Standby Link 219
- Default Port Operation 225
- LACP Notes and Restrictions 227
- Applications 233
- SNMP Management Features 235
- SNMP Version 3 Commands 238
- SNMPv3 Enable 239
- SNMP Version 3 Users 240
- Group Access Levels 243
- SNMP Communities 244
- Two Operator Access Levels 245
- SNMP Notification and Traps 250
- matches taglist value 251
- Trap Features 252
- Advanced Management: RMON 256
- Terminology 258
- General LLDP Operation 259
- Configuration Options 260
- LLDP Operating Rules 263
- LLDP Standards Compatibility 263
- Configuring LLDP Operation 264
- ■ Chassis ID (TLV) 272
- ■ Port Type (TLV subelement) 272
- ■ Port ID (TLV) 272
- TLV-Type > 273
- Advertisements 274
- Displaying Advertisement Data 275
- Displaying LLDP Statistics 280
- LLDP Operating Notes 283
- LLDP and CDP Data Management 284
- CDP Operation and Commands 286
- Per-Port CDP Enable/Disable 287
- ■ show cdp displays 288
- File Transfers 289
- Downloading Switch Software 290
- [Enter] to begin 293
- Using Secure Copy and SFTP 295
- How It Works 296
- The SCP/SFTP Process 297
- Command Options 297
- Authentication 298
- SCP/SFTP Operating Notes 298
- Switch-to-Switch Download 302
- Software 304
- [Enter] 307
- Host, PC, or Unix Workstation 309
- Status and Counters Data 316
- General System Information 318
- Menu Access 319
- CLI Access 319
- Module Information 320
- Port Status 321
- Control Status 322
- Statistics 324
- [Enter]. The address 326
- Prompt for Selecting 327
- Menu Access to STP Data 329
- CLI Access to STP Data 330
- VLAN Information 332
- Features 335
- [Y]) to select Yes 336
- [Enter], then press [S] (for 337
- Monitoring Limitations 338
- Locating a Device 341
- Troubleshooting 343
- Troubleshooting Approaches 345
- Unusual Network Activity 351
- Prioritization Problems 352
- IGMP-Related Problems 352
- LACP-Related Problems 353
- Radius-Related Problems 357
- Problems 358
- SSH-Related Problems 359
- Stacking-Related Problems 360
- TACACS-Related Problems 360
- VLAN-Related Problems 362
- Event Log Operation 365
- Range of Events in the Log 367
- Range of Log Events Displayed 367
- Log Status Line 367
- Debug and Syslog Operation 369
- Diagnostic Tools 376
- Ping and Link Tests 377
- CLI: Ping or Link Tests 379
- tech output 383
- Restoring a Flash Image 386
- MAC Address Management 389
- Viewing the MAC Addresses of 394
- Connected Devices 394
- ■ Alaska 397
- ■ Canada and Continental US 397
- ■ Middle Europe and Portugal 397
- ■ Southern Hemisphere 397
- ■ Western Europe 397
- Numerics 401
- 2 – Index 402
- Index – 3 403
- LLDP neighbor data …12-52 404
- Index – 5 405
- 6 – Index 406
- Index – 7 407
- 8 – Index 408
- Index – 9 409
- 10 – Index 410
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