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Cabletron Systems CSX200 SQE Test, Carrier Sense, Frame Too Long, Internal MAC, Receive Errors

Models: CSX200 CSX400

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Bridging

SQE Test

Displays the number of times that the SQE Test Error message is generated by the PLS sublayer on the selected interface.

The SQE (Signal Quality Error) Test tests the collision detect circuitry after each transmission. If the SQE Test fails, a SQE Test Error is sent to the interface to indicate that the collision detect circuitry is malfunctioning.

Carrier Sense

Displays the number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame on a particular interface.

Carrier sense describes the action an interface desiring to transmit will take to listen to the communication channel to see if any other interface is transmitting. If a Òcarrier is sensed,Ó the sensing interface will wait a random length of time, and then attempt to transmit.

Frame Too Long

Displays the amount of frames received on this interface that exceed the maximum permitted frame size.

Internal MAC

The number of frames that failed to be received by the interface due to an internal MAC sublayer receive error. These errors are only counted if a Frame Too Long, Alignment, or FCS Error did not occur along with the internal MAC error.

Receive Errors

Displays the total number of receive errors of all types that were detected by the selected interface while it was receiving a transmission.

Transmission Errors

Deferred

Displays the number of frames for which the Þrst transmission attempt on this interface is delayed because the medium is busy.

Internal MAC

The number of frames for which transmission fails due to an internal MAC sublayer transmit error. This error is only counted in this window if there have not been corresponding Late Collisions, Excessive Collisions, or Carrier Sense Errors.

Transmit Errors

The total of transmission errors of all types that occurred while the selected interface was attempting to transmit frames.

Bridge Statistics

4-25

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Cabletron Systems CSX200 SQE Test, Carrier Sense, Frame Too Long, Internal MAC, Receive Errors, Transmission Errors, 4-25

Contents

CSX200 and CSX400 User’s Guide Page Virus Disclaimer SmartBoost is a trademark of American Power Conversion Restricted Rights Notice Page Chapter ContentsChapter Chapter 3 CSX200 and CSX400 WAN ConﬁgurationChapter ContentsBridging Changing Path Cost ContentsUsing the Interface ConÞguration Window Indexviii ContentsChapter IntroductionHSIM-W6 and HSIM-W84 Using the CSX 200 and CSX400 User’s GuideHSIM-W6 and HSIM-W84 IntroductionCabletron SystemsÕ SPECTRUM Element Manager Tools Guide UserÕs Guide Cabletron SystemsÕ Network Troubleshooting GuideRelated Manuals Cabletron SystemsÕ SPECTRUM Element Manager UserÕs GuideLocation MAC Address Software ConventionsCommon Window Fields Device Name IP AddressMAC Address Using the MouseIP Address LocationSoftware Conventions Using Window ButtonsIntroduction Getting Help Using On-line HelpLogin PasswordIntroduction CSX200 and CSX400 FirmwareCSX200 and CSX400 Firmware Chapter CSX200 and 400 Chassis ViewViewing Chassis Information Viewing Chassis InformationCSX200 and 400 Chassis View Bridging capabilities are discussed in Chapter 4 of this manualUpTime Boot PromFront Panel Information Connection StatusClicking the on the module index will bring up the Bridge Menu StructureTime DateViewing Chassis Information The Device MenuThe Port Status Menu CSX200 and 400 Chassis ViewCSX200 and 400 Chassis View The Utilities MenuThe Help Menu The Port MenusCSX200 and 400 Chassis View The CSX200/400 Port Status DisplaysSelecting a Port Status View StatusViewing Chassis Information LoadCSX200 and 400 Chassis View I/F Speed ErrorsThe Chassis Manager Window I/F MappingCSX200 and 400 Chassis View Viewing Hardware TypesDevice Type 2-102-11 Managing the DeviceViewing the Port Description Managing the DeviceCSX200 and 400 Chassis View Using the Find Source Address FeatureViewing I/F Summary Information 2-122-13 IndexType DescriptionRaw Counts Physical StatusLogical Status Interface Performance Statistics/Bar GraphsLoad Rate2-15 CSX200 and 400 Chassis ViewCSX200 and 400 Chassis View Viewing Interface DetailTIP individual port menus 2-16Non-Unicast ErrorAddress Unicast2-18 Enabling and Disabling PortsPackets Transmitted Transmit only Making Sense of Detail StatisticsManaging the Device 2-19CSX200 and 400 Chassis View 1. Click on the desired Port index. The Port menu will appearManaging the Device 2-20CSX200 and 400 Chassis View Chapter CSX200 and CSX400 WAN ConﬁgurationAbout the CSX200 Series Physical CSX device information CSX WPIMs the WAN Logical View windowAbout the CSX400 About the CSX400WAN Redundancy CSX200 and CSX400 WAN ConﬁgurationCSX200 and CSX400 WAN Conﬁguration CSX WPIMsCSX WPIMs CSX WPIMs CSX200 and CSX400 WAN ConﬁgurationMultiplexing TDM allows for the channelization of up CSX200 and CSX400 WAN Conﬁguration WAN Logical ViewWAN Logical View Compression Changing WAN Logical SettingsWAN Logical View Window Fields ProtocolWAN Logical View Figure 3-2. WAN Logical Settings WindowCSX200 and CSX400 WAN Conﬁguration WAN Logical View CSX200 and CSX400 WAN ConﬁgurationChapter BridgingBridging Basics Bridging Basics About Transparent BridgingAbout Source Route Bridging BridgingBridging Basics BridgingIf 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 Bridging Basics About Source Route-Transparent BridgesAbout Source Route-Translational Bridges BridgingBridging Basics 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 Bridging Viewing and Managing Bridging InterfacesViewing and Managing Bridging Interfaces Viewing and Managing Bridging Interfaces ¥ 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, pageBridging Bridging The Bridge Status WindowBridge Status Window Information Fields The Bridge Status WindowThe Bridge Status Window Up TimeBridge State on Interface BridgingSpeed Accessing Other Options from the Bridge Status WindowInterface Type Bridge AddressThe Bridge Status Window 4-11Bridging pageThe Bridge Status Window 4-12Bridging The Bridge Status Window 4-13Bridging 4-14 Enabling and Disabling BridgingEnabling and Disabling Individual Interfaces from the Bridge Status windowfrom the Chassis View window Enabling and Disabling All Installed InterfacesBridge Statistics Performance Graphsfrom the Chassis View window 4-16Bridging from the Bridge Status window4-17 Bridge Performance Graph Window FieldsFrames Forwarded Green Filtered MagentaThe Bridge Detail Breakdown Window Errors RedXmitted Blue Conﬁguring the Bridge Performance GraphsErrors Frames ForwardedFiltered 4-19Forwarded from XmittedThe Bridge Port Detail Breakdown Window Forwarded tofrom the Bridge Status window The Interface Statistics Window4-21 BridgingBridging Statistics Window Fields4-22 ErrorTransmit Queue Size The CSMACD Statistics WindowUnknown Protocol Packets ReceivedBridging Receive ErrorsAlignment 4-24SQE Test Receive ErrorsTransmission Errors Transmit ErrorsSingle Collision ErrorsCollision Errors The PPP Link Statistics WindowPackets Too Long ErrorsBad Addresses Bad ControlsLocal MRU Total ErrorsBad FCSs StatisticsLocal to Remote AC Compression The Dot5 Errors Statistics WindowLocal to Remote Protocol Compression Remote to Local Protocol CompressionBridging Line ErrorsBurst Errors 4-30F. C. Errors A. C. ErrorsInternal Errors Congestion ErrorsSource Route Statistics RecoveriesLobe Wires Frequency ErrorsAll Paths Expl Bridge Source Routing Window FieldsReceived Frames Specif. RoutedDiscards Span. Tree ExplTransmitted Frames Span Tree Expl4-35 Bridge Spanning TreeHop Cnt. Exceeded Bridge Spanning Tree4-36 Conﬁguring the Bridge Spanning Tree WindowBridge Level Fields Bridge Priority4-37 Root BridgeRoot Cost Root PortMax Age Forwarding DelayBridge Port Level Fields Hello TimeDesignated Bridge Path CostDesignated Cost Designated Root4-40 Changing Bridge Spanning Tree ParametersChanging Bridge Priority Changing the Spanning Tree Algorithm Protocol Type4-41 Changing Forwarding Delay TimeChanging Hello Time Changing Max Age Time4-42 Filtering DatabaseChanging Port Priority Changing Path CostFiltering Database 4-43Bridging The Filtering Database consists of two separate databases the Static and the Learned Databasesfrom the Chassis View window 4-44Bridging from the Bridge Status windowCapacity Filtering Database Window FieldsList NumberReceive Port Conﬁguring the Filtering DatabaseAging Time Source PortBridging Altering the Aging TimeChanging the Type of Entry 4-474-48 Changing the Receive PortChanging the Port Filtering Action Adding or Deleting Individual Entries4-49 Ethernet and Token Ring Special Filter DatabasesClearing All Permanent, Static, or Dynamic Entries Ethernet and Token Ring Special Filter Databasesfrom the Bridge Status window Ethernet Special Filter Database Window4-50 Bridgingfrom the Bridge Status window Token Ring Special Filter Database Window4-51 BridgingDestination Address EnableSpecial Filter Database Window Fields FileData Mask Deﬁning and Editing Filters in the Special DatabaseData Type Data OffsetEthernet and Token Ring Special Filter Databases 4-54Bridging Figure 4-15. The Special Database Filter Window4-55 Setting the Port Filtering ActionChanging the Receive Ports Changing the Port Filtering Action4-56 Enabling and Disabling a FilterSaving a Set of Filters to a File Clearing the Port Filtering ActionBridging Source Route ConﬁgurationSource Route Conﬁguration 4-57Source Route Conﬁguration Information on Source Routing4-58 BridgingBridging The Source Route Conﬁguration WindowSource Route Conﬁguration Fields 4-59Hop Count Limit Subnet MaskLocal Segment Target SegmentBridging Spanning Tree ExplBridge Number 4-61Source Route Conﬁguration Spanning Tree Mode4-62 Bridging4-63 Using the Find Source Address FeatureMaking and Setting Changes Using the Find Source Address FeatureBridging The Port Source Addresses Window4-64 The Port Source Addresses WindowThe Port Source Addresses Window Setting the Aging Time4-65 BridgingBridging Duplex Modes4-66 Duplex Modes4-67 The Duplex Modes WindowDuplex Modes Window Fields InterfaceBridging Setting the Duplex ModeFull Duplex 4-68Bridging Standard ModeEthernet Port Conﬁguration Window 4-69Bridging Fast Ethernet Port Conﬁguration4-70 Fast Ethernet Port Conﬁguration4-71 Current Operational ModePort Type Link State4-72 Desired Operational ModeAdvertised Abilities Remote CapabilitiesBridging Setting the Desired Operational Mode for the FE-100TXSetting the Desired Operational Mode for the FE-100FX 4-73SONET Port Conﬁguration SONET Port ConﬁgurationSONET/SDH Conﬁguration 4-74from the Chassis View window 4-75Bridging from the Bridge Status windowSONET Port Conﬁguration SONET/SDH Statistics Window4-76 BridgingRegenerators Section Line Path Path Terminating Equipment FE100-Sx or APIM-2xLine Terminating OC-3c Equipment link Telco/SP ADM Add/Drop Multiplexerfrom the Bridge Status window 4-78Errors BridgingBridging Loss of SignalLoss of Pointer 4-79Bridging Errored SecondsLoss of Frame 4-804-81 Severely Errored SecondsSeverely Errored Framing Seconds Code ViolationsBridging Conﬁguring Broadcast Suppression4-82 Conﬁguring Broadcast SuppressionBridging Token Ring Bridge ModeToken Ring Bridge Mode 4-83Source Routing Setting The Token Ring Bridge ModeDeﬁning the Bridge Modes TransparentEthernet Port Physical Status Fields Using the Physical View WindowsUsing the Physical View Windows ETWMIM Ethernet Port Physical ViewUsing the Physical View Windows ETWMIM Token Ring Port Physical ViewEpim Type 4-864-87 Token Ring Physical Status FieldsRing Speed Ring StateUsing the Physical View Windows FNB StateActive Monitor 4-88Bridging Using the Interface Conﬁguration WindowUsing the Interface Conﬁguration Window 4-89Bridging Deﬁning the Bridge Method4-90 Using the Interface Conﬁguration WindowTCP/IP Setting the Bridge MethodNetBIOS Deﬁning the Protocol TransmissionBridging Using the Bridge and Port Conﬁguration WindowsUsing the Bridge and Port Conﬁguration Windows 4-92from the Bridge Status window 4-93Using the Bridge and Port Conﬁguration Windows BridgingUsing the Bridge and Port Conﬁguration Windows Virtual Ring NumberRing Number 4-944-95 Port ModeNovell Translation Bridge Mode/Explorer TypeBridging Conﬁguring SmartTrunking4-96 Conﬁguring SmartTrunkingBridging PortName 4-97# SmartTrunks ModeSmartTrunk State InstanceConﬁguring SmartTrunking 4-99To enable or disable Load Sharing on an individual bridge port BridgingConﬁguring SmartTrunking 4-100Bridging Index-1 IndexIndex-2 IndexIndex Index-3Index Index-4