3Com 2000 TR manual Clearing Screen Counters, Jam Counts

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6-4CHAPTER 6: MONITORING THE TR-IN-FE MODULE

Frames Received—The total number of frames that have been received by the port including frames with errors.

Frames Transmitted—The total number of frames transmitted by the port, including frames with errors.

Multicasts Frames—The number of frames success- fully received with a multicast destination address. This number does not include frames directed to a broadcast address or frames received with errors.

Broadcast Frames—The number of frames received that have a broadcast destination address. This number does not include frames with errors.

Octets Received—The number of octets received by the port, including the MAC header and CRC. Octet counters are accurate to the nearest 256-byte bound- ary.

Octets Transmitted—The number of octets trans- mitted by the port, including the MAC header and CRC. Octet counters are accurate to the nearest 256-byte boundary.

Jam Counts

Frames Forwarded—The total number of frames received by this port and then forwarded to their des- tination address.

Cut-thrusReceived—The total number of cut-thru packets received on the port.

Errors—Total of both line errors (CRCs) and lost frames.

Frame Size Analysis—A series of counters that rep- resent the composition of the traffic on the Switch 2000 TR. The counters display the percentage of packets categorized by received length as represented by the following octet parameters:

18 to 63 octets

64 to 127 octets

128 to 255 octets

256 to 511 octets

512 to 1023 octets

1024 to 2047 octets

2048 to 4095 octets

Packets greater than 4095 octets

Clearing Screen Counters

To make it easier to note the changes in statistic val- ues, you can reset the value of statistics shown on the screen to zero. Resetting the values shown on the screen does not reset the statistic values stored on the device.

Select the CLEAR SCREEN COUNTERS button to reset the counters on the screen to zero.

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Contents For SuperStack II Switch 2000 TR For units of the Department of Defense For civilian agenciesAbout this Guide 3COM Corporation Limited Warranty About this Guide IntroductionTerminology Finding Information in this Guide ConventionsAbout the SuperStack II Switch 2000 TR TR-in-FE Module OverviewTR-in-FE Benefits Summary of TR-in-FE Module Features HardwareSoftware 4CHAPTER 1 Overview What is Token Ring-in-Fast Ethernet TR-in-FE? TR-IN-FE ConceptsTR-in-FE Compared to Traditional Methods 3Com Token Ring-in-Fast Ethernet SystemToken Ring-in-Fast Ethernet Module How TR-in-FE Works How TR-in-FE WorksPower IIRedundant SuperStack Tunneling RequirementsToken Ring Frames 4Token Ring-in-Fast Ethernet Frame Advantages of Vlan What is a VlanVirtual LANs Vlans Port-Based Distribution8CHAPTER 2 TR-IN-FE Concepts Installing and Setting UP the Module Following Safety InformationPre-installation Procedure Installation Post-Installation Checks LED SummaryChecking the Power Supply Checking that the TR-in-FE Module is Installed Correctly Checking the Physical ConnectionsJumper Settings 2TR-in-FE Module Jumper SettingsChoice Field Accessing Management FeaturesVT100 Console Entry FieldKey Board Shortcuts ButtonList Boxes Correcting Text EntriesDefault Users Default Name Password Access LevelConsole Menu Map 1VT100 Console Menu Map with I/O Module Detail Switch 2000 TR banner LCD ConsoleUser Name Default Access Level Password Logging OnLogging Off Automatic Logout8CHAPTER 4 Accessing Management Features Configuring the TR-IN-FE Module TR-in-FE Module Configuration MapSetting Up a Module 2I/O Module Screen ConfigBridge Parameters Spanning TreeSource Routing Setting Up a Vlan TR Vlan Info Setup ScreenTR Vlan Setup Screen Scroll the Vlan list using the Up and Down keys Monitoring the TR-IN-FE Module TR-in-FE Module Statistics MapStatistics Overview 2TR Port Statistics ScreenPort Statistics Traffic 3Sample TR Port Statistics Traffic ScreenClearing Screen Counters Jam CountsImportant Safety Information ’information de Sécurité ImportanteWichtige Sicherheitsinformationen Screen Access Rights Screen Access level required2APPENDIX B Screen Access Rights TR-IN-FE Module Technical Specifications Environmental SpecificationsTR-in-FE Cable Specification Does the Cable Provide Sufficient Bandwidth? ExampleCore mm Cladding mm Numerical Aperture TR-in-FE Cable Specification 4APPENDIX C TR-IN-FE Module Technical Specifications Technical Support Online Technical Services3Com Bulletin Board Service World Wide Web Site3ComForum on CompuServe 3ComFacts Automated Fax ServiceSupport from Your Network Supplier Country Telephone NumberSupport from 3Com Returning Products for RepairCountry Telephone Number Fax Number 4APPENDIX D Technical Support Numbers Page 3Com Corporation Limited Warranty HardwareGoverning LAW