HP 4108GL - 16 Spanning Tree Protocol (Stp); Chapter Contents

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16-1

Spanning Tree Protocol

(STP)

Spanning Tree Protocol (STP)

Chapter Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2

Menu: Configuring STP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-4

CLI: Configuring STP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-5

Web: Enabling or Disabling STP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-9

How STP Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-9

STP Fast Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-10

STP Operation with 802.1Q VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-12

Main Page

Table of Contents7
- Preface5
- Monitoring and Analyzing Switch Operation15
Table of Contents16
- Selecting a Management Interface18
- Overview18
- Understanding Management Interfaces18
- Advantages of Using the Menu Interface19
- Advantages of Using the CLI20
- Advantages of Using the HP Web Browser Interface21
- Advantages of Using HP Toptools for Hubs & Switches22
2 Using the Menu Interface25
- Default Chapter25
  - Contents25
- Using the Menu Interface26
- Overview26
- Starting and Ending a Menu Session27
  - How to Start a Menu Interface Session28
  - How to End a Menu Session and Exit from the Console29
- Main Menu Features31
- Screen Structure and Navigation33
- Rebooting the Switch36
- Menu Features List38
- Where to Go from here39
3 Using the Command Line Interface (Cli)41
- Chapter Contents41
- Accessing the CLI42
- Overview42
- Using the CLI42
- CLI Control and Editing56
4 Using the Hp Web Browser Interface Chapter57
- Chapter Contents57
- Using the HP Web Browser Interface57
- Overview58
- General Features59
- Web Browser Interface Requirements60
- Starting an HP Web Browser Interface Session with the Switch61
  - Using a Standalone Web Browser in a PC or UNIX Workstation61
  - Using HP Toptools for Hubs & Switches62
- Tasks for Your First HP Web Browser Interface Session64
  - Viewing the "First Time Install" Window64
- Support/Mgmt Urls Feature69
  - Support URL70
  - Help and the Management Server URL70
- Status Reporting Features72
5 Switch Memory and Configuration83
- Chapter Contents83
- Overview of Configuration File Management84
- Overview84
- Using the CLI to Implement Configuration Changes86
- Using the Menu and Web Browser Interfaces to Implement Configuration Changes89
- Using Primary and Secondary Flash Image Options93
6 Interface Access and System Information103
- Chapter Contents103
- Overview104
- Interface Access: Console/Serial Link, Web, and Inbound Telnet105
- System Information110
7 Configuring IP Addressing117
- Contents117
- Overview118
- IP Configuration119
8 Time Protocols131
- Chapter Contents131
- Overview132
  - Timep Time Synchronization132
  - SNTP Time Synchronization132
- Overview: Selecting a Time Synchronization Protocol or Turning off Time Protocol Operation133
- SNTP: Viewing, Selecting, and Configuring134
  - Menu: Viewing and Configuring SNTP135
  - CLI: Viewing and Configuring SNTP138
    - Viewing the Current SNTP Configuration138
    - Configuring (Enabling or Disabling) the SNTP Mode139
- Timep: Viewing, Selecting, and Configuring143
  - Menu: Viewing and Configuring Timep144
  - CLI: Viewing and Configuring Timep146
    - Viewing the Current Timep Configuration146
    - Configuring (Enabling or Disabling) the Timep Mode147
- SNTP Unicast Time Polling with Multiple SNTP Servers150
- SNTP Messages in the Event Log153
9 Using Passwords and Tacacs+ to Protect against Unauthorized Access155
- Contents155
- Overview156
- Configuring Username and Password Security157
- TACACS+ Authentication for Central Control of Switch Access Security162
10 Using Authorized IP Managers for Increased Management Security185
- Chapter Contents185
- Overview186
- Using Authorized IP Managers188
11 Optimizing Port Usage through Traffic Control and Port Trunking199
- Default Chapter199
  - Chapter Contents199
- Viewing Port Status and Configuring Port Parameters200
- Optimizing Port Usage through Traffic Control and Port Trunking200
- Overview200
- Port Trunking208
12 Configuring for Network Management Applications Chapter231
- Chapter Contents231
- Configuring for Network Management Applications231
- Overview232
- Cdp242
13 Hp Procurve Stack Management259
- Chapter Contents259
- Overview261
- HP Procurve Stack Management262
- Which Devices Support Stacking263
- Components of HP Procurve Stack Management264
- General Stacking Operation264
- Operating Rules for Stacking265
  - General Rules265
  - Specific Rules266
- Overview of Configuring and Bringing up a Stack268
  - General Steps for Creating a Stack270
- Using the Menu Interface to View Stack Status and Configure Stacking272
  - Using the Menu Interface to View and Configure a Commander Switch272
  - Using the Menu to Manage a Candidate Switch274
- Using the Commander to Manage the Stack276
  - Using the Commander to Access Member Switches for Configuration Changes and Monitoring Traffic283
  - Converting a Commander or Member to a Member of284
- Monitoring Stack Status285
- Using the CLI to View Stack Status and Configure Stacking289
- SNMP Community Operation in a Stack303
- Stacking Operation with Multiple Vlans Configured304
- Transmission Interval304
- Using the CLI to Disable or Re-Enable Stacking304
- Web: Viewing and Configuring Stacking305
- Status Messages306
14 Port-Based Virtual Lans (Vlans) and Gvrp307
- Default Chapter307
  - Chapter Contents307
- Overview309
- Port-Based Virtual Lans (Static Vlans)310
  - Overview of Using Vlans313
- Gvrp336
15 Multimedia Traffic Control with IP Multicast (Igmp)351
- Chapter Contents351
- Overview352
- General Operation and Features353
  - IGMP Terms354
  - IGMP Operating Features355
    - Basic Operation355
    - Enhancements355
- CLI: Configuring and Displaying IGMP356
16 Spanning Tree Protocol (Stp)371
- Chapter Contents371
- Cli372
- Overview372
- Menu: Configuring STP374
- CLI: Configuring STP375
- How STP Operates379
  - STP Fast Mode380
  - STP Operation with 802.1Q Vlans382
- Web: Enabling or Disabling STP379
17 Monitoring and Analyzing Switch Operation385
- Overview386
- Status and Counters Data387
- Port Monitoring Features407
18 Troubleshooting413
- Default Chapter413
- Restoring the Factory-Default Configuration438
  - CLI: Resetting to the Factory-Default Configuration438
    - Clear/Reset: Resetting to the Factory-Default Configuration438
- Restoring a Flash Image439
File Transfers443
- Appendix Contents443
- Troubleshooting TFTP Downloads443
- Overview444
- Downloading an Operating System (os444
- Troubleshooting TFTP Downloads455
- Transferring Switch Configurations455
- Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation458
  - Copying Command Output to a Destination Device458
- MAC Address Management462
- Determining MAC Addresses462
  - Menu: Viewing the Switch's MAC Addresses463
  - CLI: Viewing the Port and VLAN MAC Addresses464
- Daylight Savings Time on HP Procurve Switches467

HP 4108GL - 16 Spanning Tree Protocol (Stp); Chapter Contents

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