Cabletron Systems 7000 manual Non-Unicast, Discarded, Error, Unknown Protocol Received only

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The SmartSwitch 7000 Chassis View

Type

Displays the interface type of the selected port: ethernet-csmacd, fddi, atm, or other.

The lower portion of the window provides the following transmit and receive statistics; note that the Þrst four statistics are also graphically displayed in the pie charts.

Unicast

Displays the number of packets transmitted to or received from this interface that had a single, unique destination address. These statistics are displayed in the pie chart, color-coded green.

Non-Unicast

Displays the number of packets transmitted to or received from this interface that had a destination address that is recognized by more than one device on the network segment. The multicast Þeld includes a count of broadcast packets Ñ those that are recognized by all devices on a segment. These statistics are displayed in the pie chart, color-coded dark blue.

Discarded

Displays the number of packets which were discarded even though they contained no errors that would prevent transmission. Good packets are typically discarded to free up buffer space when the network becomes very busy; if this is occurring routinely, it usually means that network trafÞc is overwhelming the device. To solve this problem, you may need to re-conÞgure your bridging parameters, or perhaps re-conÞgure your network to add additional bridges or switches. Consult the Cabletron Systems Network Troubleshooting Guide for more information.

These statistics are displayed in the pie chart, color-coded magenta.

Error

Displays the number of packets received or transmitted that contained errors. These statistics are displayed in the pie chart, color-coded red.

Unknown Protocol (Received only)

Displays the number of packets received which were discarded because they were created under an unknown or unsupported protocol.

Packets Received (Received only)

Displays the number of packets received by the selected interface.

Transmit Queue Size (Transmit only)

Displays the number of packets currently queued for transmission from this interface. The amount of device memory devoted to buffer space, and the trafÞc level on the target network, determine how large the output packet queue can grow before the SmartSwitch 7000 module will begin to discard packets.

Viewing Chassis Information

2-19

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Contents SmartSwitch User’s Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Index Chapter Alarm ConﬁgurationChapter Fddi Management Chapter ATM ConﬁgurationIntroduction Introduction Using the SmartSwitch 7000 User’s Guide Common Window Fields Related ManualsSoftware Conventions MAC Address Device NameIP Address LocationLeft Mouse Button Right Mouse Button Using the MouseGetting Help Using Window ButtonsUsing On-line Help Getting Help from the Cabletron Systems Global Call Center SmartSwitch 7000 FirmwareSmartSwitch Chassis View Viewing Chassis Information SmartSwitch 7000 Chassis ViewSmartSwitch Chassis View Windows Port Status Front Panel InformationConnection Status UpTimeTime Boot PromMenu Structure FirmwareDevice Menu SmartSwitch 7000 Chassis View Menu StructurePort Status Menu Help Menu Fddi MenuUtilities Menu Port Menus Board MenusStatus Port Status DisplaysSelecting a Port Status View Load ErrorsPort Status Color Codes Chassis Manager WindowSpeed TypeChassis Manager Window Viewing Hardware TypesModule Type Device TypeIndex Viewing I/F Summary Information Interface Performance Statistics/Bar Graphs Description Physical Status Logical StatusRate Address Viewing Interface DetailDiscarded ErrorUnicast Non-UnicastMaking Sense of Detail Statistics Viewing Fddi StatisticsPackets Transmitted Transmit only Peak KBytes/sec Setting the Fddi Statistics Polling IntervalFrames/sec KBytes/sec11. Find Source Address Window Using the Find Source Address FeatureConﬁguring Ethernet and Fddi Ports Managing the HubConﬁguring Ports Conﬁguring Fast Ethernet Ports Standard ModeFull Duplex 13. Fast Ethernet ConÞguration Link State Current Operational ModeDesired Operational Mode Port TypeRemote Capabilities Setting the Desired Operational ModeFor 100Base-FX ports, options are COM Port Function COM Port AdminConﬁguring the COM Ports Speed Selection Slip16. Edit Date Window Setting the Device Date and TimeEnabling and Disabling Ports Statistics Accessing the Statistics WindowStatistics Rmon StatisticsPacket Type BytesPackets Drop EventsProblems Frame Size Bytes Packets Viewing Total, Delta, and Accumulated StatisticsStandard Print Window Printing StatisticsInterface Statistics Interface Statistics Packets Transmitted Transmit only Statistics About Rmon Alarms and Events Alarm ConﬁgurationAlarm Conﬁguration Basic Alarm ConﬁgurationRmon Basic Alarm ConÞguration Window Accessing the Basic Alarm Conﬁguration WindowIf Number Viewing Alarm StatusKilobits Total Errors Broadcasts/Multicasts Port NumberRising Threshold If TypeLog/Trap Polling IntervalCreating and Editing a Basic Alarm Alarm Conﬁguration Falling Thresholds Work, Disabling a Basic AlarmViewing the Basic Alarm Log Accessing the Rmon Advanced Alarm/Event List Advanced Alarm ConﬁgurationRmon Advanced Alarm/Event List Window Alarm Conﬁguration Creating and Editing an Advanced Alarm To conÞgure an alarm TIP Alarm Conﬁguration Table index.lengthin bytes.instancein decimal format Alarm Conﬁguration Creating and Editing an Event Rmon Create/Edit Events Window TIP Alarm Conﬁguration Adding Actions to an Event Alarm Conﬁguration Viewing an Advanced Alarm Event Log Deleting an Alarm, Event, or ActionHow Rising and Falling Thresholds Work Event Alarm Conﬁguration How Rising and Falling Thresholds Work Fddi Management Fddi Management ConﬁgurationMAC State Concentrator ConÞguration WindowReq. Requested Target Token Rotation Time SMT VersionNumber of MACs Neg. NegotiatedConcentrator M Ports Concentrator Non-M PortsRing Conﬁguration Connection PolicyFddi Management 15 32,768 Ñ a permanently set value for this bit Number of Nodes Address ModeStation List Upstream Neighbor Stations PanelNode Class TopologyPerformance Lost Frames Frame ErrorsTransmit Frames Receive FramesATM Conﬁguration Accessing the ATM Connections WindowConnection Data VPI SettingsAdding a New Connection Conﬁguring ConnectionsDeleting a Connection ATM Conﬁguration Conﬁguring Connections Numerics SymbolsIndex-2 Index-3 Index Index-4