Cabletron Systems 9A128-01 manual Conﬁguring Duplex Modes

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Bridging

•A Module Type window that contains a description of the 9A128-01 module, see Viewing Hardware Types in Chapter 2 for more information.

•A Bridge Performance Graph that displays statistics for trafﬁc across the entire bridge (see Bridge Statistics, page 5-6).

A Performance Graph window is also available for each individual interface, by clicking on a port index button to display the port level management options (see Bridge Statistics, page 5-6).

•The Spanning Tree window, which allows you to set the Spanning Tree Algorithm parameters (see Bridge Spanning Tree, page 5-14).

•The Filtering Database window, which lets you conﬁgure the bridge’s acquired and permanent ﬁltering databases to ﬁlter or forward trafﬁc across the selected module (see Filtering Database, page 5-21).

•The Duplex Modes window, which allows you to conﬁgure duplex mode (on or off) for standard Ethernet and FDDI interfaces; see Conﬁguring Duplex Modes, below, for details.

Conﬁguring Duplex Modes

Enabling Full Duplex mode on an interface allows the interface to receive and transmit packets at the same time, effectively doubling the available bandwidth (and, therefore, the wire speed) on the selected interface. Interfaces which are not set to Full Duplex mode must receive and transmit separately, waiting for one activity to be completed before the other is begun.

NOTE

Although this option appears on the menu accessed from the Bridge Status window, the Duplex Mode functionality is not supported by the 9A128-01 module. Attempting to set options in these windows will generate Set Failed errors, but will not affect the device’s bridging functions.

To access the Duplex Modes window:

1.Click on to display the main Bridge menu;

2.Drag down to Duplex Mode(s)..., and release. The Duplex Modes Window, Figure 5-2, will appear.

5-4	Conﬁguring Duplex Modes

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Contents Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Fddi Management Chapter BridgingIndex Introduction Using This GuideRelated Reading Common Window Fields Software ConventionsDevice Name IP AddressUsing On-line Help Using ButtonsGetting Help LocationFTP Getting Help from the Cabletron Systems Global Call CenterFirmware Versions Supported 9A128-01 Module View Front Panel Information Viewing Module InformationConnection Status Boot PromUpTime Port StatusMenu Structure TimeDate Device Menu A128-01 Module View Menu StructurePort Status Menu Utilities Menu Fddi MenuHelp Menu Board MenusPort Menus Port Status DisplaysBridge Port Status Displays Selecting a Port Status ViewBridge Mapping Bridge Port StateBridge Port Status Color Codes Fddi Port Status DisplaysLER Estimate Connection StateFddi Port Status Color Codes Chassis Manager WindowViewing Hardware Types Device TypeModule Type Module Type Window Viewing I/F Summary InformationDescription IndexSta Interface Performance Statistics/Bar GraphsLoad Raw CountsInterface Statistics Window RateAddress ErrorUnicast Non-UnicastPackets Received Received only Using the Find Source Address FeatureTransmit Queue Size Transmit only Packets Transmitted Transmit onlyManaging the Hub Setting the Device Date and TimeBridge Ports Enabling and Disabling PortsModule Ports ATM Conﬁguration Accessing the ATM Connections WindowConnection Data ATM ConﬁgurationVPI SettingsAdding a New Connection Conﬁguring ConnectionsDeleting a Connection ATM Conﬁguration Conﬁguring Connections Fddi Management Fddi Management ConﬁgurationMAC State SMT Version Req. Requested Target Token Rotation TimeNeg. Negotiated Concentrator Non-M Ports Concentrator M PortsNumber of MACs MAC PathConnection Policy 15 32,768 a permanently set value for this bit Address Mode Station ListNumber of Nodes Node Class Stations PanelTopology Upstream NeighborPerformance Transmit Frames Frame ErrorsReceive Frames Lost FramesFddi Management Performance Bridging Bridging Bridge Status WindowBridge State on Interface Up TimeInterface Type Bridge AddressConﬁguring Duplex Modes Enabling and Disabling Bridging Performance Graphs Bridge StatisticsForwarded Green Filtered Magenta Total Errors RedXmitted Blue Conﬁguring the Bridge Performance GraphsForwarded ErrorsFiltered XmittedInterface Statistics Window Forwarded toForwarded from Description Using Source Addressing Port Source Addresses Window Setting the Ageing TimeBridge Spanning Tree Bridge Priority Conﬁguring the Bridge Spanning Tree WindowRoot Cost Root BridgeRoot Port ProtocolHello Time Forwarding DelayMax Age Hold TimeChanging Bridge Spanning Tree Parameters Changing Bridge Priority Changing the Spanning Tree Algorithm Protocol TypeChanging Hello Time Changing Forwarding Delay Time Changing Max Age TimeChanging Port Priority Changing Path Cost Filtering DatabaseBridging Bridging Number ListCapacity Ageing TimeConﬁguring the Filtering Database Receive PortPort Filtering Changing the Type of Entry Altering the Ageing TimeChanging the Receive Port Changing the Port Filtering ActionClearing All Permanent, Static, or Dynamic Entries Bridging Filtering Database Index Index-2 Index-3 Index Index-4