Enterasys Networks ENTERASYS ATX manual Making Sense of Detail Statistics

Page 42

The ATX Switch Chassis View

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 trafﬁc is overwhelming the device. To solve this problem, you may need to re-conﬁgure your bridging parameters, or perhaps re-conﬁgure your network to add additional bridges or switches. Consult the 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 trafﬁc level on the target network, determine how large the output packet queue can grow before the 9H42x-xx module will begin to discard packets.

Packets Transmitted (Transmit only)

Displays the number of packets transmitted by this interface.

Making Sense of Detail Statistics

The statistics available in this window can give you an idea of how an interface is performing; by using the statistics in a few simple calculations, it’s also possible to get a sense of an interface’s activity level:

To calculate the percentage of input errors:

Received Errors /Packets Received

To calculate the percentage of output errors:

Transmitted Errors /Packets Transmitted

To calculate the total number of inbound and outbound discards:

Received Discards + Transmitted Discards

2-28	Managing the Hub

Image 42

Contents ATX User’s Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Workgroup Conﬁguration Chapter Using ATX TrunkingChapter Using ATX Port Filtering Chapter ATX Port MirroringIntroduction Using the ATX Switch User’s Guide Related ManualsCommon ATX Switch Window Fields Software ConventionsUsing Window Buttons Using On-line Help Getting HelpGetting Help from the Global Technical Assistance Center Login ATX Switch Chassis View ATX Switch Chassis View Viewing Chassis InformationFront Panel Information Connection StatusPort Status Boot Prom Menu StructureFirmware Device Menu Port Status MenuUtilities Menu Help MenuPPE Module Menu PPE Port Menu Port Status DisplaysModule Menu Port MenuSelecting a Port Status View StatusPort Status Color Codes Chassis Manager Window Viewing Hardware TypesModule Type Text Boxes Interface DescriptionManaging the Hub IPX RoutingConﬁguring IPX Routing on a port Selecting the Frame Type for a PortIP Routing IP Conﬁg/Routing windowIP Mask Conﬁguring the IP Address TableIndex Port Conﬁguring IP Routing on a PortPort Conﬁguration Broadcast ProtectionLocal Switching Bridge Port ConﬁgurationRing Speed Setting the Bridge Mode 11. Bridge Conﬁguration windowRing Number Transmitting BPDUsSource Route Conﬁguration Bridge NumberSetting the Spanning Tree Explorer Mode Token Ring TranslationIPX Framing IPX Source RouteARP Translate Netbios Source Route ARP Source RouteTo set the Token Ring Translation Parameters Using the Find Source Address Feature Viewing I/F Summary InformationIndex Logical StatusInterface Performance Statistics/Bar Graphs Raw CountsRate Viewing Interface DetailUnicast DescriptionAddress Non-UnicastMaking Sense of Detail Statistics Administratively Enabling and Disabling Ports Enabling and Disabling PortsATX Switch Chassis View Managing the Hub Using ATX Trunking Port Trunking Window StateLast Error Rmt Bridge IdRmt IP Address Link Count Enabling and Disabling TrunkingLink Ordinal Last ChangeUsing ATX Trunking Using ATX Trunking Port Trunking Window Using ATX Port Filtering Using ATX Port Filtering Pseudo Port Filters Table InformationId Identiﬁer ProtocolEditing the Port Filters Table Adding a New Filter Using ATX Port Filtering Using ATX Port Filtering Using ATX Port Filtering Using ATX Port Filtering Last Frame Address Viewing Filter StatisticsDeleting a Port Filter PacketsWorkgroup Conﬁguration Workgroup Conﬁguration Virtual Workgroups Window Conﬁguring a Workgroup TotalDeleting a Workgroup Workgroup Conﬁguration Conﬁguring a Workgroup ATX Port Mirroring Port Mirroring Window ATX Port MirroringConﬁguring Port Mirroring From the device where the mirrored ports are located If the ports being mirrored are remoteFrom the device where the diagnostic port is located ATX Port Mirroring Port Mirroring Window IPX Routing Tables Port# IPX StatisticsIPX Interface IPX NetworkIPX Route Age Hop CountNext Hop Tick CountNodeID SocketIPX Routing Tables Index Index-2 Index-3 Index Index-4