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Cabletron Systems CSX400, CSX200 manual Duplex Modes, 4-66, Bridging

Models: CSX200 CSX400

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Duplex Modes

Bridging

Figure 4-19. Device Aging Time Window

2.Type in the new Aging Time, in seconds, then click on . The allowable range is 10 to 1000000 seconds; the default is 300 seconds.

Duplex Modes

WARNING

Some of the bridge interfaces on a device will support Full Duplex Switched Ethernet (FDSE) mode. Enabling full duplex mode on an interface allows the interface to receive and transmit packets at the same time, effectively doubling the available bandwidth.

On an Ethernet connection that is not using full duplex mode, the interface can either transmit or receive packets. The interface has to wait for one activity to be completed before switching to the next activity (receive or transmit).

Using the full duplex mode allows for faster transmission of packets over Ethernet connections because the bridging interface can transmit and receive packets; the interface does not have to wait for one activity to be completed before switching to the next one.

Full Duplex should only be enabled on an interface that has a connection to a single destination address at the other end of the connection (i.e., it is not a segment with an attached repeater cascading the connection to multiple destination addresses).

Full Duplex mode disables the collision detection circuitry at the interface, so that both Transmit and Receive wires can be used simultaneously. With a single destination address at the other end of the connection (for example, if the connection was to a full duplex interface on another switching module, or if a single Þle server was connected to the full duplex switch port), this essentially doubles the available bandwidth from 10 Mbit/sec to 20 Mbit/sec. Note that the interface at the other end of the connection must also have Full Duplex enabled at the attached interface.

Full Duplex mode must be disabled if the interface is communicating with multiple destinations simultaneously (i.e., if a repeater is cascaded from the interface), since Ethernet relies on Collision Sense for proper operation.

4-66	Duplex Modes

Image 112

Cabletron Systems CSX400, CSX200 manual Duplex Modes, 4-66, Bridging

Contents

CSX200 and CSX400 User’s Guide Page Virus Disclaimer SmartBoost is a trademark of American Power Conversion Restricted Rights Notice Page Contents ChapterChapter 3 CSX200 and CSX400 WAN Conﬁguration ChapterBridging ContentsChapter Contents Changing Path CostIndex viiiContents Using the Interface ConÞguration WindowIntroduction ChapterUsing the CSX 200 and CSX400 User’s Guide HSIM-W6 and HSIM-W84Introduction HSIM-W6 and HSIM-W84UserÕs Guide Cabletron SystemsÕ Network Troubleshooting Guide Related ManualsCabletron SystemsÕ SPECTRUM Element Manager UserÕs Guide Cabletron SystemsÕ SPECTRUM Element Manager Tools GuideSoftware Conventions Common Window FieldsDevice Name IP Address Location MAC AddressUsing the Mouse IP AddressLocation MAC AddressIntroduction Using Window ButtonsSoftware Conventions Using On-line Help LoginPassword Getting HelpCSX200 and CSX400 Firmware CSX200 and CSX400 FirmwareIntroduction CSX200 and 400 Chassis View ChapterViewing Chassis Information CSX200 and 400 Chassis ViewBridging capabilities are discussed in Chapter 4 of this manual Viewing Chassis InformationBoot Prom Front Panel InformationConnection Status UpTimeMenu Structure TimeDate Clicking the on the module index will bring up the BridgeThe Device Menu The Port Status MenuCSX200 and 400 Chassis View Viewing Chassis InformationThe Utilities Menu The Help MenuThe Port Menus CSX200 and 400 Chassis ViewThe CSX200/400 Port Status Displays Selecting a Port Status ViewStatus CSX200 and 400 Chassis ViewCSX200 and 400 Chassis View LoadViewing Chassis Information Errors The Chassis Manager WindowI/F Mapping I/F SpeedViewing Hardware Types Device Type2-10 CSX200 and 400 Chassis ViewManaging the Device Viewing the Port DescriptionManaging the Device 2-11Using the Find Source Address Feature Viewing I/F Summary Information2-12 CSX200 and 400 Chassis ViewIndex TypeDescription 2-13Physical Status Logical StatusInterface Performance Statistics/Bar Graphs Raw CountsRate 2-15CSX200 and 400 Chassis View LoadViewing Interface Detail TIP individual port menus2-16 CSX200 and 400 Chassis ViewError AddressUnicast Non-UnicastEnabling and Disabling Ports Packets Transmitted Transmit onlyMaking Sense of Detail Statistics 2-182-19 CSX200 and 400 Chassis View1. Click on the desired Port index. The Port menu will appear Managing the DeviceCSX200 and 400 Chassis View 2-20Managing the Device CSX200 and CSX400 WAN Conﬁguration About the CSX200 SeriesPhysical CSX device information CSX WPIMs the WAN Logical View window ChapterAbout the CSX400 WAN RedundancyCSX200 and CSX400 WAN Conﬁguration About the CSX400CSX WPIMs CSX WPIMsCSX200 and CSX400 WAN Conﬁguration Multiplexing TDM allows for the channelization of up CSX200 and CSX400 WAN ConﬁgurationCSX WPIMs WAN Logical View WAN Logical ViewCSX200 and CSX400 WAN Conﬁguration Changing WAN Logical Settings WAN Logical View Window FieldsProtocol CompressionCSX200 and CSX400 WAN Conﬁguration Figure 3-2. WAN Logical Settings WindowWAN Logical View CSX200 and CSX400 WAN Conﬁguration WAN Logical ViewBridging Basics BridgingChapter About Transparent Bridging About Source Route BridgingBridging Bridging BasicsIf the sending station does not receive a response to the test packet, it will send explorer packets to the destination the explorer packets will be propagated by the networkÕs bridges as either All Paths Explorer APE packets or as Spanning Tree Explorer STE packets. The task of both packet types is to get the destination station to return speciÞc route information to the sending station by including an identiÞer for each ring the explorer packet traversed and for each bridge between any rings BridgingBridging Basics About Source Route-Transparent Bridges About Source Route-Translational BridgesBridging Bridging BasicsBridging For data that is restricted to the Token Ring networks available from the SR-TB bridgeÕs front panel, the bridging method used is user-conÞgurable via local management to be Source Route-only bridged packets must include RIF information and will be source routed no transparent bridging is enabled, Source Route-Transparent bridging method will be determined by whether the RII bit is set, or Transparent only no source routed packets will be bridged. Remote management of these interfaces is based upon their current mode as set through local managementBridging Basics Viewing and Managing Bridging Interfaces Viewing and Managing Bridging InterfacesBridging Bridging ¥ The SmartTrunk option invokes the SmartTrunk ConÞguration and Status window, which enables you to group interfaces logically to achieve greater bandwidth between devices, if both devices support the SmartTrunk feature. There is no limit to the number of ports that can be included in a single Òtrunk,Ó nor is there a limit to the number of trunked ÒinstancesÓ that can be supported see ConÞguring SmartTrunking, pageViewing and Managing Bridging Interfaces The Bridge Status Window Bridge Status Window Information FieldsThe Bridge Status Window BridgingUp Time Bridge State on InterfaceBridging The Bridge Status WindowAccessing Other Options from the Bridge Status Window Interface TypeBridge Address Speed4-11 Bridgingpage The Bridge Status WindowBridging 4-12The Bridge Status Window Bridging 4-13The Bridge Status Window Enabling and Disabling Bridging Enabling and Disabling Individual Interfacesfrom the Bridge Status window 4-14Enabling and Disabling All Installed Interfaces Bridge StatisticsPerformance Graphs from the Chassis View window4-16 Bridgingfrom the Bridge Status window from the Chassis View windowBridge Performance Graph Window Fields Frames Forwarded GreenFiltered Magenta 4-17Errors Red Xmitted BlueConﬁguring the Bridge Performance Graphs The Bridge Detail Breakdown WindowFrames Forwarded Filtered4-19 ErrorsXmitted The Bridge Port Detail Breakdown WindowForwarded to Forwarded fromThe Interface Statistics Window 4-21Bridging from the Bridge Status windowStatistics Window Fields 4-22Error BridgingThe CSMACD Statistics Window Unknown ProtocolPackets Received Transmit Queue SizeReceive Errors Alignment4-24 BridgingReceive Errors Transmission ErrorsTransmit Errors SQE TestCollision Errors Collision ErrorsThe PPP Link Statistics Window SingleErrors Bad AddressesBad Controls Packets Too LongTotal Errors Bad FCSsStatistics Local MRUThe Dot5 Errors Statistics Window Local to Remote Protocol CompressionRemote to Local Protocol Compression Local to Remote AC CompressionLine Errors Burst Errors4-30 BridgingA. C. Errors Internal ErrorsCongestion Errors F. C. ErrorsRecoveries Lobe WiresFrequency Errors Source Route StatisticsBridge Source Routing Window Fields Received FramesSpecif. Routed All Paths ExplSpan. Tree Expl Transmitted FramesSpan Tree Expl DiscardsBridge Spanning Tree Hop Cnt. ExceededBridge Spanning Tree 4-35Conﬁguring the Bridge Spanning Tree Window Bridge Level FieldsBridge Priority 4-36Root Bridge Root CostRoot Port 4-37Forwarding Delay Bridge Port Level FieldsHello Time Max AgePath Cost Designated CostDesignated Root Designated BridgeChanging Bridge Spanning Tree Parameters Changing Bridge PriorityChanging the Spanning Tree Algorithm Protocol Type 4-40Changing Forwarding Delay Time Changing Hello TimeChanging Max Age Time 4-41Filtering Database Changing Port PriorityChanging Path Cost 4-424-43 BridgingThe Filtering Database consists of two separate databases the Static and the Learned Databases Filtering Database4-44 Bridgingfrom the Bridge Status window from the Chassis View windowFiltering Database Window Fields ListNumber CapacityConﬁguring the Filtering Database Aging TimeSource Port Receive PortAltering the Aging Time Changing the Type of Entry4-47 BridgingChanging the Receive Port Changing the Port Filtering ActionAdding or Deleting Individual Entries 4-48Ethernet and Token Ring Special Filter Databases Clearing All Permanent, Static, or Dynamic EntriesEthernet and Token Ring Special Filter Databases 4-49Ethernet Special Filter Database Window 4-50Bridging from the Bridge Status windowToken Ring Special Filter Database Window 4-51Bridging from the Bridge Status windowEnable Special Filter Database Window FieldsFile Destination AddressDeﬁning and Editing Filters in the Special Database Data TypeData Offset Data Mask4-54 BridgingFigure 4-15. The Special Database Filter Window Ethernet and Token Ring Special Filter DatabasesSetting the Port Filtering Action Changing the Receive PortsChanging the Port Filtering Action 4-55Enabling and Disabling a Filter Saving a Set of Filters to a FileClearing the Port Filtering Action 4-56Source Route Conﬁguration Source Route Conﬁguration4-57 BridgingInformation on Source Routing 4-58Bridging Source Route ConﬁgurationThe Source Route Conﬁguration Window Source Route Conﬁguration Fields4-59 BridgingSubnet Mask Local SegmentTarget Segment Hop Count LimitSpanning Tree Expl Bridge Number4-61 BridgingSpanning Tree Mode 4-62Bridging Source Route ConﬁgurationUsing the Find Source Address Feature Making and Setting ChangesUsing the Find Source Address Feature 4-63The Port Source Addresses Window 4-64The Port Source Addresses Window BridgingSetting the Aging Time 4-65Bridging The Port Source Addresses WindowDuplex Modes 4-66Duplex Modes BridgingThe Duplex Modes Window Duplex Modes Window FieldsInterface 4-67Setting the Duplex Mode Full Duplex4-68 BridgingStandard Mode Ethernet Port Conﬁguration Window4-69 BridgingFast Ethernet Port Conﬁguration 4-70Fast Ethernet Port Conﬁguration BridgingCurrent Operational Mode Port TypeLink State 4-71Desired Operational Mode Advertised AbilitiesRemote Capabilities 4-72Setting the Desired Operational Mode for the FE-100TX Setting the Desired Operational Mode for the FE-100FX4-73 BridgingSONET Port Conﬁguration SONET/SDH Conﬁguration4-74 SONET Port Conﬁguration4-75 Bridgingfrom the Bridge Status window from the Chassis View windowSONET/SDH Statistics Window 4-76Bridging SONET Port ConﬁgurationPath Terminating Equipment FE100-Sx or APIM-2x Line Terminating OC-3c Equipmentlink Telco/SP ADM Add/Drop Multiplexer Regenerators Section Line Path4-78 ErrorsBridging from the Bridge Status windowLoss of Signal Loss of Pointer4-79 BridgingErrored Seconds Loss of Frame4-80 BridgingSeverely Errored Seconds Severely Errored Framing SecondsCode Violations 4-81Conﬁguring Broadcast Suppression 4-82Conﬁguring Broadcast Suppression BridgingToken Ring Bridge Mode Token Ring Bridge Mode4-83 BridgingSetting The Token Ring Bridge Mode Deﬁning the Bridge ModesTransparent Source RoutingUsing the Physical View Windows Using the Physical View WindowsETWMIM Ethernet Port Physical View Ethernet Port Physical Status FieldsETWMIM Token Ring Port Physical View Epim Type4-86 Using the Physical View WindowsToken Ring Physical Status Fields Ring SpeedRing State 4-87FNB State Active Monitor4-88 Using the Physical View WindowsUsing the Interface Conﬁguration Window Using the Interface Conﬁguration Window4-89 BridgingDeﬁning the Bridge Method 4-90Using the Interface Conﬁguration Window BridgingSetting the Bridge Method NetBIOSDeﬁning the Protocol Transmission TCP/IPUsing the Bridge and Port Conﬁguration Windows Using the Bridge and Port Conﬁguration Windows4-92 Bridging4-93 Using the Bridge and Port Conﬁguration WindowsBridging from the Bridge Status windowVirtual Ring Number Ring Number4-94 Using the Bridge and Port Conﬁguration WindowsPort Mode Novell TranslationBridge Mode/Explorer Type 4-95Conﬁguring SmartTrunking 4-96Conﬁguring SmartTrunking BridgingPort Name4-97 BridgingMode SmartTrunk StateInstance # SmartTrunks4-99 To enable or disable Load Sharing on an individual bridge portBridging Conﬁguring SmartTrunkingBridging 4-100Conﬁguring SmartTrunking Index Index-1Index Index-2Index-3 IndexIndex-4 Index