Device Statistics | Cabletron Systems EMM-E6 Ethernet guide

CHAPTER 11: DEVICE STATISTICS SCREEN

11.1DEVICE STATISTICS

This section describes Device Statistics screen data ﬁelds.

BYTES RECEIVED

Displays the number of bytes received.

FRAMES RECEIVED

Displays the number of frames received.

FRAMES FILTERED

Displays the total number of frames ﬁltered.

FRAMES TRANSMITTED

Displays the total number of frames transmitted.

ERRORS RECEIVED

Displays the total number of errors received.

COLLISIONS

Displays the number of collisions received.

OOW COLLISIONS

Displays the number of Out Of Window collisions. OOW collisions are usually caused by: The network being so long that the round trip propagation delay is greater than 51.2 ∝s (the collision domain is too large); a station somewhere on the network violating Carrier Sense and transmitting at will; or a cable somewhere on the network failing during the transmission of a packet.

CRC ERRORS

Displays the number of packets with bad Cyclic Redundancy Checks (CRC) that have been received from the network. The CRC is a 4 byte ﬁeld in the data packet that ensures that the transmitted data that is received is the same as the data that was originally sent.

ALIGNMENT ERRORS

Displays the number of errors due to misaligned packets. Misaligned packets contain a non-integral number of bytes (i.e., some bytes contain fewer than 8 bits).

11-2	EMM-E6 User’s Guide

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Cabletron Systems EMM-E6 Ethernet manual Device Statistics

Contents

EMM-E6 USER’S Guide EMM-E6 Windows is a registered trademark of Microsoft Corp FCC Notice DOC Notice Vcci Notice Cabletron SYSTEMS, INC Program License Agreement Bellcore Testing Information Cabletron Software Program License Exclusion of Warranty Disclaimer of Liability United States Government Restricted Rights Table of Contents Table of Contents Accessing Local Management Community Names Configuration ScreenAttaching a Console Trap Table Screen Router Setup Screen Device Statistics Screen Command Line Interface Screen MIB NavigatorTroubleshooting Image File Download Appendix a EMM-E6 Specifications Appendix B EMM-E6 OIDs Using this Manual Chapter Introduction Introduction Using this Manual EMM-E6 Features Lanviewsecure Support Available Routing Services I960 Processor DesignIeee 802.1d Compliant Special Filtering Database EMM-E6 User’s Guide User Configurable EPIMs Expandable Flash Eeprom Memory Lanview Diagnostic LEDs Expandable LdramExpandable Sdram Snmp and Rmon support DLM Support Local Communication PortsIn-Band Telnet with MIB Navigator Port Locking and Lanviewsecure Support Mmac with Flexible Network BUS Mmac Chassis Ethernet Channels A, B, C, D, E, and F Ethernet Channel a Ethernet Channels B and C Other FNB Modules Ethernet Channel D Snacmim TRMIM-32A TRMIM-34A TRRMIM-F2T TRRMIM-F3T Channels E and F Bridges OSI Model Filtering and Forwarding Spanning Tree Algorithm Local Management Features Community Names Snmp MIBs Review of AddressingMAC Addresses 00-00-1D-00-26-FB IP Addresses Class a Identifying IP Address Classes Subnet Addresses Subnet Masks S H Examples of Class C Subnet Masks Examples of Class B Subnet Masks Default Gateway Operation of the Subnet Mask Addressing Example EMM-E6 User’s Guide Lanview LEDs and Reset Switch Lanviewsecure EMM-E6 User’s Guide Getting Help Related Manuals Chapter Requirements / Configurations Network Requirements 1 10BASE-T Twisted Pair Network Network Requirements Multimode Fiber Optic Network Single Mode Fiber Optic Network Thin-net Network Transceiver Requirements Repeater Media Interface Modules Port Assignment Modules Sample Repeater MIMs Sample Network Configurations Three Networks With a Single MMAC-FNB EMM-E6 as a Multiport Router Adding Users to a Separate Segment Ing le Channe l Fault Tolerant Wiring Hierarchy Sample Network Configurations EMM-E6 and BRIMs Chapter Installation Unpacking the EMM-E6 Quantity Setting Mode Switches EMM-E6 Mode Switches Do not change the state of Switch 6 unless you Setting Mode Switches Simm Upgrades Locating SIMMs Simm Slot Locations Installing SIMMs Installing a Simm To install a Simm To install an Epim ADDING/REPLACING EPIMs Brim Connector Locations Locating BRIMs PRE-INSTALLATION Test Pre-Installation Test Installing the EMM-E6 Mmac M8FNB EMM-E6 EMM-E6 Installation CHECK-OUT Installation Checkout Connecting to the Network Connecting a Twisted Pair Segment to an EPIM-T EPIM-T Connecting an AUI Cable to an EPIM-X 12. The EPIM-X Connecting to an EPIM-F1/F2, or EPIM-F3 Connecting to the Network EMM-E6 User’s Guide Connecting a Thin-Net Segment to an EPIM-C 14. The EPIM-C Connecting an AUI Cable to an EPIM-A 15. The EPIM-A EMM-E6 User’s Guide Configuring Your Terminal Chapter Attaching a Console Communications Setup Menu Display Setup MenuKeyboard Set-up Menu Configuring a Console Cable Connecting to a VT Series Terminal VT S i T i l Connecting to an IBM PC or Compatible Configuring a UPS Cable Pinout DescriptionsRJ45 DB9 Chapter Accessing Local Management EMM-E6-960 Local Management Feature Selection Screen EMM-E6 User’s Guide Accessing the Community Name Table Chapter Community Names Community Name Table Screen Fields AccessCommunity Name Establishing Community Names Chapter Configuration Screen Accessing the Configuration Screen Channel Configuration Screen FieldsIP Address Default Interface Default GatewayPort Enable Override SubNET Mask Setting the Host IP Address Host IP applies to each interface Modifying a Subnet Mask Setting Default Gateway and Interface Setting Default Gateway and Interface CONNECTING/DISCONNECTING a UPS Unlocking Ports Enabling Ports Accessing the Trap Table Screen Chapter Trap Table Screen Configuring the Trap Table Trap Table Screen FieldsSnmp Community Name Traps If you exit without saving, you lose all edits Accessing the Snmp Tools Screen Chapter Snmp Tools Screen Snmp Tools Screen Fields Cycles Security Access LevelRepeat Getting and Setting Oids Community Name Getting and Setting Oids Scrolling Through MIB Oids Scrolling Through MIB Oids EMM-E6 User’s Guide Chapter Router Setup Screen Router Setup Screen Chapter Device Statistics Screen Device Statistics Screen Device Statistics Device Statistics Screen Commands Selecting an Update Frequency NetworkSlot Port Selecting a Network/Slot/Port Enabling Ports Disabling Ports Exiting the Device Statistics Screen Chapter Command Line Interface Screen EMM-E6 CLI Information Screen Chapter MIB Navigator Managing Device MIBs Accessing the MIB Navigator MIB Navigator Command SET Overview Conventions For MIB Navigator Commands Navigation Commands Branch Navigation Commands cont’d Format cd Path Example MIBNav cd iso/org/dod/internet/mgmt 13-6 EMM-E6 User’s Guide EMM-E6 User’s Guide 13-7 13-8 EMM-E6 User’s Guide EMM-E6 User’s Guide 13-9 13-10 EMM-E6 User’s Guide Built-In Commands Example MIBNav arp -a Built-In Commands cont’d Netstat EMM-E6 User’s Guide 13-13 Example EMM-E6 User’s Guide 13-15 Special Commands Format Done Chapter Troubleshooting Using Lanview Color Description Error Condition Recommended Action LED EMM-E6 User’s Guide 14-3 Troubleshooting Checklist Troubleshooting Checklist Problem Possible Causes Recommended Action 14-6 EMM-E6 User’s Guide Using the Reset Switch Chapter Image File Download Getting Started Decompress the image ﬁle Forced Download with Unix 15-4 EMM-E6 Users Guide EMM-E6 Users Guide 15-5 15-6 EMM-E6 Users Guide Standard Download Procedure Standard Local Download Remote Runtime Download Runtime Download Procedure 15-10 EMM-E6 Users Guide Appendix a EMM-E6 Specifications Bridging Functionality Repeater Functionality COM 2 Port COM 1 PortEnvironmental Requirements Safety Physical Properties EPIM-T 10BASE-T Twisted Pair Port 10BASE-T EPIM-F1/F2 Multimode Fiber Optic Port EPIM-F2 EPIM-F3 Single Mode Fiber Optic Port Figure A-4. EPIM-F3 Parameter Typical Minimum EPIM-C BNC Port Thin-net cable Figure A-5 EPIM-A and EPIM-X AUI Port Type Position D type receptacle Appendix B CtBridgeStpProtocolSpecificationSpanning Tree Protocol Configuring ARP Request Packets RptrScrAddrMgmtHashType RptrSrcAddrMgmtPortLock Port Group SecurityRptrPortGrpSrcAddrLock RptrPortSecurityLockStatus RptrPortSecurityLockAddAddressRptrPortSecurityLockDelAddress Object Identiﬁer RptrPortSecurityDisableOnViolation RptrPortSecurityFullSecEnabled Enabling & Disabling Snmp Traps Enabling Network Level Snmp TrapsRptrHwTrapsSetLink RptrHwTrapsSetSeg RptrSaTrapSetScraddr Enabling Module Level Snmp TrapsRptrPortGrpHwTrapSetLink RptrPortGrpHwTrapSetSeg Enabling Port Level Snmp TrapsRptrPortGrpSaTrapSetSrcaddr RptrPortHwTrapSetLink RptrPortHwTrapSetSeg Activating Rmon Groups ChCompAdminStatusChCompName Dot1dstpPortEnable BridgingTrunk Port Security RptrPortSrcAddrForceTrunk Fnbconnect Channel SelectionFnbPortConnectPortAssignment Remote Downloading OID Hashing on Source AddresesRptrSrcAddrMgmtHashType Glossary 10BASE-FL10BASE-T ATM AUI BootpBrim Broadcast BusesCard Chassis CSMA/CD DLM DNIEeprom Epim Fddi FNB Ieee IanaIetf ISO LANLanview Ldram MIB MIM Nvram OID PVC RmimRmon Sdram Simm SMASnmp SQE STP TCP UTP Index Numerics Lanview Eeprom Tprmim EMM-E6 LED Description Installation