Linksys SRW224G4P manual Spanning Tree STP Port Settings STP Port Setting Detail

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Chapter 5

Configuring the Switch

The Port Information displays the current status of the ports in the Spanning Tree..

Port  Displays the port number..

State  Shows if Spanning Tree has been enabled on this interface.. To enable STP on a port click the state checkbox for that port then click Save Settings to save the changes..

Status  Displays current state of this port within the Spanning Tree:

•Discarding  Port receives STA configuration messages, but does not forward packets..

•Learning  Porthastransmittedconfigurationmessages for an interval set by the Forward Delay parameter without receiving contradictory information.. Port address table is cleared, and the port begins learning addresses..

•Forwarding  Port forwards packets, and continues learning addresses..

Role  Roles are assigned according to whether the port is part of the active topology connecting the bridge to the root bridge (i..e.., root port), connecting a LAN through the bridge to the root bridge (i..e.., designated port), or is the MSTI regional root (i..e.., master port); or is an alternate or backup port that may provide connectivity if other bridges, bridge ports, or LANs fail or are removed.. The role is set to disabled (i..e.., disabled port) if a port has no role within the spanning tree..

Forward Transitions  The number of times this port has transitioned from the Learning state to the Forwarding state..

Operational Edge Port  This parameter is initialized to the setting for Administrative Edge Port in STP Port Setting detail, but will be set to false if a BPDU is received indicating that another bridge is attached to this port..

Click on Detail to configure STP Port Settings for an interface..

Click Detail to configure Path Cost, Priority, Administrative Edge Port (Fast Forwarding), and Administrative Link Type.. Use the text fields provided to edit the values, then click Apply..

Spanning Tree > STP Port Settings > STP Port Setting Detail

Designated Cost  The cost for a packet to travel from this port to the root in the current SpanningTree configuration.. The slower the media, the higher the cost..

Designated Port  The port priority and number of the port on the designated bridging device through which the Switch must communicate with the root of the Spanning Tree..

Designated Bridge  The bridge priority and MAC address of the device through which this port must communicate to reach the root of the Spanning Tree..

Path Cost  This parameter is used by the STP to determine the best path between devices.. Therefore, lower values should be assigned to ports attached to faster media, and higher values assigned to ports with slower media.. (Path cost takes precedence over port priority..)

NOTE: When the Path Cost Method is set to “short,” the maximum path cost is 65,535..

Range –

Ethernet: 200,000-20,000,000

Fast Ethernet: 20,000-2,000,000

Gigabit Ethernet: 2,000-200,000 Default –

Ethernet – Half duplex: 2,000,000; full duplex: 1,000,000;

LAG: 500,000

Fast Ethernet – Half duplex: 200,000; full duplex: 100,000;

LAG: 50,000

Gigabit Ethernet – Full duplex: 10,000; LAG: 5,000

24-Port 10/100 + 4-Port Gigabit Switch with WebView and Power over Ethernet

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Contents User Guide Table of Contents ACL Appendix E Contact Information Appendix a About Gigabit Ethernet and Fiber Optic CablingOnline Resources About This GuideIcon Descriptions Copyright and TrademarksChapter Chapter IntroductionChapter Product Overview Front PanelBack Panel Side PanelPre-Installation Considerations Placement OptionsOverview Desktop Placement Hardware InstallationUplinking the Switch Rack-Mount PlacementChapter Configuration Using Console Interface Configuring the HyperTerminal ApplicationSystem Configuration Menu LoginSwitch Main Menu System ConfigurationManagement Settings User & Password SettingsIP Configuration IP Address SettingsRestore System Default Settings Reboot SystemFile Management Port Status Port ConfigurationPoE Configuration Back to Main MenuPort PoE Status System PoE ConfigurationPort PoE Configuration LogoutSetup Setup SummaryDevice Information PoE Information Setup Network SettingsSystem Information IdentificationSetup Time Set TimePort Management Port Settings Edit Port SettingsPort Management Port Management Link Aggregation Port Broadcast ControlPort Setting Port Management PoE Power SettingsGlobal Setting Port Management LacpVlan Management Create Vlan Vlan Management Port SettingsVlan Management Create VlanVlan Management Ports to Vlan Vlan Management Vlan to PortsStatistics Statistics Rmon StatisticsStatistics Rmon History Statistics Rmon Alarms Statistics Rmon EventsStatistics Port Utilization Statistics 802.1x StatisticsACL IP based ACL ACL MAC based ACLSecurity Security Authentication ServersRadius Server Setting Security ACL BindingSecurity 802.1x Settings Tacacs Server SettingSecurity Ports Security Security Https Settings Security Management ACLSecurity SSH Settings Security SSH Host-Key SettingsQoS CoS Settings QoSCoS to Queue Queue Settings QoS Queue SettingsQoS Dscp Settings Port to CoSQoS DiffServ Settings Class MapPolicy Map Spanning Tree QoS DiffServ Port BindingQoS Bandwidth Spanning Tree STP Status Spanning Tree Global STPSpanning Tree STP Port Settings Spanning Tree STP Port Settings STP Port Setting Detail Spanning Tree Rstp Port Settings Spanning Tree Mstp Instance Settings Spanning Tree Mstp PropertiesSpanning Tree Mstp Interface Settings Multicast Multicast Global Settings Multicast Static Member PortsMulticast Static Router Ports Multicast Member Ports QueryMulticast Router Ports Query Snmp Global Parameters Snmp Views Snmp Group ProfileSnmp Communities User AuthenticationSnmp Group Membership Data PrivacySnmp Notification Recipient AdminAdmin User Authentication SNMPv1,2Address Aging Admin Forwarding DatabaseStatic Address Setting Dynamic Address QueryAdmin Log System LoggingSyslog Admin Port Mirroring Smtp SettingAdmin Cable Test Admin PingAdmin Save Configuration Admin Jumbo Frame Admin Firmware UpgradeAdmin Http Upgrade Admin Reboot Admin Factory DefaultAppendix a About Gigabit Ethernet Fiber Optic Cabling Gigabit EthernetFiber Optic Cabling Appendix B Appendix B GlossaryGlossary Smtp Simple Mail Transfer Protocol The standard e Appendix B Appendix C Specifications Appendix CSpecifications Appendix D Warranty and Regulatory Information Limited WarrantyIndustry Canada Canada Safety NoticesFCC Statement IC StatementDansk Danish Miljøinformation for kunder i EU La Directiva 2002/96/CE de la UE exige que los equipos que Norsk Norwegian Miljøinformasjon for kunder i EU WEB For additional information, please visit Appendix E
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