HP PROCURVE 2520 Uživatelský manuál Strana 329
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- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)
TLV (Type-Length-Value): A data unit that includes a data type field, a data
unit length field (in bytes), and a field containing the actual data the unit is
designed to carry (as an alphanumeric string, a bitmap, or a su/jointfilesconvert/53256/bgroup of
information). Some TLVs include subelements that occur as separate data
points in displays of information maintained by the switch for LLDP
advertisements. (That is, some TLVs include multiple data points or
subelements.)
General LLDP Operation
An LLDP packet contains data about the transmitting switch and port. The
switch advertises itself to adjacent (neighbor) devices by transmitting LLDP
data packets out all ports on which outbound LLDP is enabled, and reading
LLDP advertisements from neighbor devices on ports that are inbound LLDP-
enabled. (LLDP is a one-way protocol and does not include any
acknowledgement mechanism.) An LLDP-enabled port receiving LLDP
packets inbound from neighbor devices stores the packet data in a Neighbor
database (MIB).
LLDP-MED
This capability is an extension to LLDP and is available on the switches
covered in this guide. Refer to “LLDP-MED (Media-Endpoint-Discovery)” on
page 13-53.
Packet Boundaries in a Network Topology
■ Where multiple LLDP devices are directly connected, an outbound LLDP
packet travels only to the next LLDP device. An LLDP-capable device does
not forward LLDP packets to any other devices, regardless of whether
they are LLDP-enabled.
■ An intervening hub or repeater forwards the LLDP packets it receives in
the same manner as any other multicast packets it receives. Thus, two
LLDP switches joined by a hub or repeater handle LLDP traffic in the same
way that they would if directly connected.
■ Any intervening 802.1D device or Layer-3 device that is either LLDP-
unaware or has disabled LLDP operation drops the packet.
13-37
- HP ProCurve Switch Software 1
- HP ProCurve 2520 Switches 3
- Management and Configuration 3
- 3 Using the Menu Interface 6
- 8 Configuring IP Addressing 10
- 9 Time Protocols 11
- 12 Port Trunking 13
- A File Transfers 15
- C Troubleshooting 18
- D MAC Address Management 20
- F Power-Saving Features 20
- Product Documentation 21
- Software Feature Index 22
- Getting Started 25
- Introduction 26
- Conventions 26
- Command Prompts 27
- Screen Simulations 27
- Sources for More Information 28
- Online Help 30
- Command Line Interface 31
- Web Browser Interface 31
- Need Only a Quick Start? 32
- Network 32
- Advantages of Using the CLI 36
- Interface 37
- ■ Telnet 40
- ■ serial connection 40
- ■ SSHv2 40
- ■ Web browser 40
- Using the Menu Interface 45
- Command Line (CLI) option.) 47
- Main Menu Features 51
- 1. VLAN Support 57
- Menu Features List 58
- Where To Go From Here 59
- Accessing the CLI 62
- Using the CLI 62
- Privilege Levels at Logon 63
- Privilege Level Operation 64
- Manager Privileges 65
- How To Move Between Levels 67
- ? symbol lists the 68
- Listing Command Options 70
- Displaying CLI “Help” 71
- Configuration Modes 73
- CLI Control and Editing 76
- For example: 77
- Using a Command Alias 78
- CLI Editing Shortcuts 81
- General Features 85
- Starting a Web Browser 86
- ProCurve Manager Plus (PCM+) 87
- First time install 88
- Browser Interface Session 89
- [Fault Detection] key.) 90
- Using a User Name 92
- If You Lose the Password 92
- Support/Mgmt URLs Feature 94
- Support URL 95
- Port Utilization 99
- Status Reporting Features 100
- Port Status 101
- The Alert Log 102
- Contents 107
- Overview 109
- Configuration Changes 112
- Using the CLI To Implement 112
- Changes 115
- Optional Reboot 117
- Switch Command 117
- Image Options 119
- Will boot from primary flash 120
- Switch Software Downloads 121
- No Undo! 123
- Rebooting the Switch 124
- Setting the Default Flash 126
- Using Reload 127
- Multiple Configuration Files 129
- General Operation 130
- Configuration Enabled 133
- Command Page 134
- Connected Host 142
- DHCP Option 66 143
- CLI Command 144
- Operating Notes 145
- Log Messages 145
- Web, and Inbound Telnet 149
- Interface Access 150
- Parameters 150
- and reload 154
- Remote Management Sessions 155
- System Information 157
- New hostname, contact 160
- (config)# time timezone -480 162
- [System Info] 163
- [Apply Changes] 163
- [?] in the web 163
- Configuring IP Addressing 165
- IP Configuration 166
- Live (TTL) 169
- [IP Configuration] 174
- DHCP/Bootp Operation 176
- ■ For Bootp operation: 178
- ■ For DHCP operation: 178
- Downloads 180
- Time Protocols 185
- Operation 187
- Configuring 188
- ■ You want to: 195
- – TIMEP (the default) 201
- Parameter 208
- SNTP Servers 209
- Configured 210
- Port Type 214
- Status of Ports 215
- Flow Control 215
- Broadcast Limit 215
- Configuring Ports 217
- Error Messages 223
- Viewing Transceiver Status 224
- Been Inserted 238
- Related Publications 242
- Terminology 242
- PoE Operation 243
- Power Priority Operation 244
- Configuring PoE Operation 245
- Indicates PoE support for 246
- Controlling PoE Allocation 248
- Maximum 250
- Cycling Power on a Port 252
- Information 253
- Configuration 259
- PoE Event Log Messages 260
- Port Trunking 263
- Trunk Configuration Methods 266
- Trunk Group 271
- [Enter] 272
- “Up” Links 276
- Standby Link 276
- [Port Status] 279
- Default Port Operation 283
- LACP Notes and Restrictions 284
- “Trunk” Option 288
- Trunked Links 289
- Applications 293
- SNMP Management Features 296
- SNMP Version 3 Commands 298
- Enabling SNMPv3 299
- SNMPv3 Users 299
- Group Access Levels 303
- SNMPv3 Communities 303
- Two Operator Access Levels 304
- Communities 305
- SNMP Notifications 309
- ■ Access Security Guide: 310
- SNMPv1 and SNMPv2c Traps 311
- Enabling SNMPv2c Informs 313
- SNMPv2c Inform 314
- Enabling Link-Change Traps 320
- ■ SNMP communities 323
- SNMP Community 324
- Link-change 324
- Advanced Management: RMON 325
- General LLDP Operation 329
- Configuration Options 330
- LLDP Operating Rules 333
- Configuring LLDP Operation 334
- ■ Chassis ID (TLV) 342
- ■ Port ID (TLV) 342
- TLV-Type > 343
- Advertisements 344
- LLDP-MED Fast Start Control 350
- Telephone) Source 363
- Displaying LLDP Statistics 364
- LLDP Operating Notes 366
- LLDP and CDP Data Management 368
- CDP Operation and Commands 370
- ■ show cdp displays 373
- File Transfers 375
- Downloading Switch Software 377
- [E] (for Edit) 379
- [Enter] to begin 380
- Using Secure Copy and SFTP 383
- The SCP/SFTP Process 384
- Command Options 387
- Authentication 388
- SCP/SFTP Operating Notes 388
- Primary or Secondary Flash 392
- Switch-to-Switch Download 393
- Copying Software Images 396
- ProCurve# show tech custom 399
- No SHOW-TECH file found 399
- Host, PC or UNIX Workstation 402
- Status and Counters Data 408
- General System Information 410
- Menu Access 412
- CLI Access 413
- Control Status 415
- Group Statistics 417
- [Enter]. The address 419
- Prompt for Selecting 420
- CLI Access to MSTP Data 422
- VLAN Information 424
- [Y]) to select Yes 428
- Monitored Ports 430
- Locating a Device 432
- Troubleshooting 435
- Troubleshooting Approaches 439
- Unusual Network Activity 442
- IGMP-Related Problems 443
- LACP-Related Problems 444
- QoS-Related Problems 447
- Radius-Related Problems 448
- Problems 449
- SSH-Related Problems 450
- TACACS-Related Problems 451
- VLAN-Related Problems 453
- Fan Failure 455
- Switch Problems 456
- Event Log and SNMP Messages 464
- Log Throttle Periods 465
- Debug/Syslog Operation 466
- Caution 470
- Debug Command 472
- Debug Destinations 474
- Logging Command 475
- Diagnostic Tools 483
- Port Auto-Negotiation 484
- Ping and Link Tests 484
- CLI: Ping Test 486
- Link Tests 487
- Traceroute Command 488
- Syntax: alias 500
- Restoring a Flash Image 502
- DNS Resolver 505
- Configuring a DNS Entry 508
- First-Hop Router (“B”) 510
- Traceroute Target 510
- Event Log Messages 513
- MAC Address Management 515
- Determining MAC Addresses 517
- Viewing the MAC Addresses of 520
- Connected Devices 520
- ■ Alaska 521
- ■ Canada and Continental US 521
- ■ Southern Hemisphere 521
- ■ Western Europe 521
- Power-Saving Features 525
- Show Savepower Status 526
- Symbols 527
- Numerics 527
- 2 – Index 528
- Index – 3 529
- 4 – Index 530
- Index – 5 531
- 6 – Index 532
- Index – 7 533
- 8 – Index 534
- Index – 9 535
- 10 – Index 536
- Index – 11 537
- 12 – Index 538
- Index – 13 539
- 14 – Index 540
- Index – 15 541
- 16 – Index 542
- ProCurve 5400zl Switches 544
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