Spanning Tree | Intel 510T manual

C H A P T E R 3 Standard Configuration

Purpose

Warning when using VLANs

Why change these from their defaults?

4Click the required parameter.

5Type the percentage of errors or runts.

6Click OK.

Spanning Tree

You can change the:

•Priority given to the switch

•Maximum length of time information is retained by the switch

•Time between transmitted Configuration BPDUs

•Time the switch spends in the Listening and Learning states

It is important to be aware of problems that may arise when using Spanning Tree and VLANs. The Spanning Tree can use alternative paths (such as different ports) to get messages to their destination.

VLAN

STP

AB

Intel Express	Intel Express
510T Switch	510T Switch

Switch 1
W	X

Y	Z
Intel Express	Intel Express
510T Switch	510T Switch

Switch 2

A	B
VLAN	1738

The diagram above, shows two switches. On the left, we see the two switches connected and the ports are grouped in two VLANs: A and B. On the right, we have enabled STP; STP blocks the path between X and Z (to avoid looping) and, therefore, destroys the VLAN setup (because VLAN B needs these ports to receive messages).

The switch is delivered with Spanning Tree default values set to those recommended by the IEEE 802.1d standard. These values are conser- vative worst-case estimates for LANs consisting of a large number of switches. Therefore, changing these default values may improve the performance of your network.

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Intel 510T manual Spanning Tree

Contents

Intel Express 510T Switch Forth edition August 681886-004 Contents Advanced Configuration Technical Specifications Page Printed guide that describes these basic steps This switchSwitch and operate the switch using Intel Device View Intel Express 510T Switch This User Guide gives you instructions on how to useElectrostatic Sensitive Device Intel Device View Dynamic Host Configuration Protocol Address Resolution ProtocolRandom Access Memory ToS Type of ServicePage This chapter covers the following topics Introduction to the product Front Panel These ports are on the front panel Inserted to expand the functionality of the switchLEDs on the front panel have the following functions Buttons on the front panel have the following functions Switch’s rear panel has the following parts InstallationSwitch Rear Panel Consult your dealer before proceeding with the installation Before Installation Positioning and Installing the Switch Erating temperature for the switch To mount the switch in a standard equipment rackMounting screws are not provided because the required sizes May vary from rack to rack Installing a Module Lems Connecting Other Devices 100Base-TX network interface card installed Switch’s RJ-45 ports using UTP cable CategoryInstall and configure it correctly Types using an appropriate adapter. For example, use a UTP Connecting the Power LEDs reflect the state of each port Start-upThey are operating correctly All ports operate in auto-negotiation mode All ports are enabledSpanning Tree is disabled on all ports No access restrictions to Local Management Telnet Other LEDs on the front panel Show how the switch is operatingLEDs give information about the state of the switch 5 seconds, where they have the following meaning Intel Device View System Requirements OpenView* or Intel LANDesk Manager Installation and Removal Monitors their activities Using Intel Device ViewRemoval of Intel Device View Before a switch is contacted Help menu has the following commands for the switch Switched on and offView, see Setting the Preferences, p After a Switch or Stack is Contacted To change the polling parameters Setting the Preferences Change the values Timeout parametersChange the community Type the new community name Click OK Switches Installing and Managing Select DeviceManage The Manage dialog box appears Type in the switch’s IP Address or MAC address Device View window This window, even switches that are already configured as aAte or expand an existing stack Select DeviceManage, and the Manage dialog opens Device Tree Recognized as a switchDevice Tree displays the separate subnets on your LAN as Ured devices on the LAN Without a device selected Wizard for new switchesRight mouse button, the following functions are available You time Face side of the switch or stack is displayedDevice View Main Display Status of the Vlan links Right click a single switch and Intel Device View offersDisplays monitoring information Intel Device View offers Selected Right click a single port and Intel Device View offers Switch and ports are displayed in different colors Explorer Right click a message and Intel Device View offers Diagnostics WindowGet it working properly in case of problems Ing to the severity of the trap Traps window displays all traps generated by the switchTrap Window Tings, modules inserted in slots Errors WindowSystem Window Right click a message and Intel Device View offers Setups that affect the switch, or stack, and the ports Standard Configuration Switch or Stack Changing the Setup Click System With a switch or stack in the Device View windowSystem Click IP Internet Protocol Local Time Authentication Add a new entry to the list Only rights and access to communities. You canDelete an entry Edit existing entries Can TrapsAre sent Click Traps Connections to printers and other similar devices. You can Permanent Entries Link Aggregation Tween two switches or stacks. You can Forwarded or mirrored To add a mirrored port to a switchPort Mirroring Type the new time Click OK Changing configurationsLocal Management Switching Check the box to enable this mode Click the default forwarding mode you want Click OK Adaptive Forwarding Mode Spanning Tree As the root bridge. To change the priority value From a switch that is, or attempting to become, the rootType the required value Ceived and discarded Port General Changes Switch. The MAC address of those devices are removed from Port ModeClick the port you want to disable Able the port Select Port Setup Click Port Mode Click Speed 10 or Speed Port Specific Spanning Tree Default uses the same flow control as specified in DeviceChange the flow mechanism on a port Flow Control, click the flow control you want Select the Port status box A P T E R 3 Standard Configuration Page VLANs Virtual LANs Cies is used Devices can belong to one or more VLANsMAC address IP address and IP net Click the name of the Vlan you want to delete. Note you To delete a VlanCannot delete a Vlan if it is the Designated Manage Management you can now delete the first Vlan Information using VLANs between For switches in a stack there is an exchangeSwitches in the stack these switches are Their own domain Stdalone Igmp pruning and IP Multicast addresses You shouldBased on Igmp are discarded Ets in all other VLANs without IP links Check Enabled Pruning timeout, type the new value Click OK Managing the Switch Information about the Switch Management using Intel Device ViewName and how long the switch has been running To update the information, click Refresh Monitoring the Switch’s Performance Select Device ActivityTx Packets Spanning Tree Statistics Switch contains several Rmon functions. These function pro Ment on the switchLowing information, History, Alarm and Event Log are switch Right-click a switch and select MonitoringRMON His AlarmsConfigure. The Alarm Table window opens Right-click a switch and select MonitoringRMONWhich lists all alarms Click Add to add an alarm to the list Monitoring the Stack’s Performance Right-click the stack border and select IntraStack Traf Stack, or across the Matrix Module Monitoring the total packet activity per port A P T E R 5 Managing the Switch Specific switch and select Spanning Tree Title bar That switchMonitoring VLANs To view the VLANs on the switch To view the Vlan mode and Domain name Monitoring the Port’s Performance To view the links between switches in a distributed VlanThis provides status information about the server Play Legend for further information on LED states Select Port DetailsPerformance Select Port DetailsDistribution Monitoring the VLANs on To view the VLANs on the port Switch has various tools to help with management Tools for the SwitchLocal disk or file server To receive the response Sonnel Switch’s Telnet facility has the following main features A P T E R 5 Managing the Switch Load new software to the switch Software Update lets youReset the switch if necessary Access from the Console port IP address is displayed Simply lost control of the switchType in the DNS name Tools for the Stack Port Brown Yellow To on the Matrix ModuleEach Matrix port has a unique color A P T E R 5 Managing the Switch Page Technical Specifications Switch has the following physical specifications Physical SpecificationsSwitch has the following approvals Switch has the following number of LEDs Switch has the following environmental specificationsPort Power Status Temperature Switch has the following number of connections Power consumption 100W maximum Power SpecificationsPerformance Specifications Memory sizes are as follows This switch supports the following protocolsFlash Memory MB Buffer RAM MB Igmp version RFC Rsvp version Console Port Use and Troubleshooting Use of the Console Port Tains the Vlan policy database Doing backup of the configurationsAn external machine e.g. MS Windows*, Unix* or other, if Manual Tftp Using Maintenance Mode Recovering from Start-up FailureMaintenance Mode offers three facilities Ory. From Maintenance Mode the switch is forced to issue a 109 Loads software using the Bootp or Tftp pro Loads software using the Tftp protocolDumps memory contents Resets the switch Troubleshooting Procedure Troubleshooting ToolsIsolating the Problem Tools available for troubleshooting on the switch are Mon switch malfunctions Further Evaluation of the Problem Performance Problems Start-up Problems Communication Problems Customer Support Retrieving Information for Customer Sible, use Tftp proceduresSupport Various files suitable for Tftp transfer 117 Page Limited Hardware Warranty Limited Hardware Warranty Europe only 121 Federal Communications Commission FCC Statement Avertissement Advertencias 101 Index Vii Viii 114113 LED Vii 102 103 110 Rmon 116 102 116 Vlan 132 Customer Support Technicians Automated Support