HP J3178A manual Spanning Tree Operation

Page 104

Spanning Tree Operation

Spanning Tree Protocol (STP)

•Active path from node A to node B: 1—> 3

•Backup (redundant) path from node A to node B: 4 —> 2 —> 3

1

path cost: 100

switch B

node

A

switch A

2

path cost: 100 switch C

4

path cost: 200

3

path cost: 100

switch D

node

B

Figure D-1. Example of Logical and Redundant Paths Between Two Nodes

Spanning Tree Operation

D-2

Image 104

Contents HP AdvanceStack Switch 208/224 Management Module Page HP AdvanceStack Switch 208/224 Management Module Installation and Reference GuidePublication Number HP Customer Support Services How to get the latest software/agent firmwareHP FTP Library Service World Wide WebLocation Phone Number HP First Fax Retrieval ServiceAdditional HP Support Services Contents Monitoring Switch Operation From the Console Spanning Tree Operation Viii Installing the Management Module Installing the Management ModuleInstallation Steps Anti-Static PrecautionsInstalling Installing the Management Module Included PartsRemove the cover plate At Power On Removing the ModuleManagement Module Description OverviewManagement Module Description Management Module DescriptionModule Features Page Switch Console T eConnecting a Console to the Switch Switch ConsoleConnecting a PC or Terminal to the Console RS-232 Port Remote Console Connection Using a Modem and a PC Modem Cable Pin-Out How To Start a Console Session Starting and Ending a Console SessionHow To End a Console Session Main MenuMain Menu Features Screen Structure and Navigation Actions lineHow To Navigate in the Console TaskActionsUsing Password Security Level Actions PermittedCapabilities, also set an Operator password To set Manager and Operator passwordsTo Delete Password Protection To Recover from a Lost Manager PasswordTo Recover from a Lost Operator Password Select Delete Password ProtectionRebooting the Switch Reboot Switch Option in the Main Menu Switch ConsoleExample of a Configuration Change Requiring a Reboot Advanced Commands How To Use the Advanced CommandsHow To Exit from the command prompt Listing of Commands Available under Advanced CommandsPage Configuring the Switch From the Console Configuring the Switch From the ConsoleConfiguring Default values are shown in bracketsConfigurable Features How To Access the Switch ConfigurationSystem Configuration Configuring Configuring the Switch From the ConsolePort Configuration Example of the Port Configuration ScreenIPX Service Configuring the Switch From the Console Internet IP Service To configure the switch for Bootp Using BootpTo manually configure the switch for IP Bootp Operation Where How To Configure the Switch for Snmp Communities Snmp CommunitiesSnmp Communities Add or Edit Screen Trap Receivers Serial Link Configuration 10. The Serial Link Configuration Screen Default ValuesConsole Configuration 11. The Console Configuration Screen Default ValuesSpanning Tree Configuration Press the Space bar to select Yes . This enables STP12. Example of the STP Configuration Screen 13. The Default Network Monitoring Configuration Screen Network Monitoring Port14. Example of Selecting a Monitoring Port Saving Configurations Page Monitoring Switch Operation From the Console Main Menu Data Type PurposeMonitoring Monitoring Switch Operation From the ConsoleStatus and Counters Menu Switch Information Example of Switch InformationPort Status Example of Port StatusPort Counters Example of Port CountersPort Counters Show Details Example of Port Counters Show DetailsAddress Table Example of the Address TablePort Address Table To use the port address tableExample of a Port Address Table for a Specific Port Spanning Tree STP Information Example of Spanning Tree Information10. Example of STP Port Information Operation and read the Ieee 802.1d standards documentEvent Log Severity Date Time System ModuleEvent Log Control Keys Key ActionSwitch Console Using Snmp To Monitor and Manage the Switch Snmp Management Features HP Proprietary MIBs includeSnmp Configuration Process Advanced Management Rmon Ease Support RmonTroubleshooting Status Description TroubleshootingChecking the Module LEDs Problem/Solution Table Problem SolutionTesting the Switch and Management Module IP Configuration ErrorsDiagnostic Tests Testing the Switch’s Ports and the Links Troubleshooting Resetting the Switch Clearing Passwords on the Switch Console T eHP BBS Page Specifications EnvironmentalSpecifications Supported MibsRegulatory Statements Vcci Class 1 For Japan OnlyPage End Modem ConfigurationAt the switch Modem Configuration At the user endFile Transfers Downloading an Operating SystemUsing Tftp To Download the OS File File TransfersWriting System Software to FLASH, Back Soon Using the SNMP-Based HP Download Manager Using the Switch-to-Switch DownloadUsing the Zmodem to Download the OS File Jumping to console codeTroubleshooting Tftp Downloads Figure C-3. Example of Message for Download FailureFile to be copied Transferring Switch Configurations Command FunctionConfiguration Zput config remotefile overwrite dos/unix Spanning Tree Operation Spanning Tree Protocol STPSpanning Tree Operation Index Clear button description …Defaultconfig IP/IPX MIB STP Tftp Page 5966-5228