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C-38
Troubleshooting
Diagnostic Tools
Link Tests. You can issue single or multiple link tests with varying repeti-
tions and timeout periods. The defaults are:
■ Repetitions: 1 (1 - 999)
■ Timeout: 5 seconds (1 - 256 seconds)
Syntax: link < mac-address > [repetitions < 1 - 999 >] [timeout < 1 - 256 >]
[vlan < vlan-id >]
Figure C-16. Example of Link Tests
Basic Link Test
Link Test with
Repetitions
Link Test with
Repetitions and
Timeout
Link Test Over a
Specific VLAN
Link Test Over a
Specific VLAN;
Test Fail
- 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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