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Cabletron Systems 2H33-37R, 2H23-50R manual Enabling/Disabling IP Fragmentation

Models: 2H23-50R 2H33-37R

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5.7.12 Enabling/Disabling IP Fragmentation

Chapter 5: Local Management

5.7.12 Enabling/Disabling IP Fragmentation

To enable or disable IP Fragmentation, proceed as follows:

If the 2H33-37R is being bridged to an FDDI ring (for example,

!via an optional HSIM-F6), enable IP Fragmentation. If it is

CAUTION	disabled, all FDDI frames that exceed the maximum Ethernet
	disabled, all FDDI frames that exceed the maximum Ethernet
	frame size are discarded.

1.Use the arrow keys to highlight the IP Fragmentation field.

2.Press the SPACE bar to choose either ENABLED or DISABLED.

3.Use the arrow keys to highlight the SAVE command.

4.Press ENTER. The message “SAVED OK” displays at the top of the screen.

5-32	2H23-50R/2H33-37R User’s Guide

Image 82

Cabletron Systems 2H33-37R, 2H23-50R manual Enabling/Disabling IP Fragmentation

Contents

CONN CONN 2H23-50R/2H33-37R SmartSwitch 2100 User’s Guide9032286-04 CONNPage FCC NOTICE Only qualiﬁed personnel should perform installation procedures2H23-50R/2H33-37R User’s Guide CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT INDUSTRY CANADA NOTICEVCCI NOTICE 2H23-50R/2H33-37R User’s GuideUNITED STATES GOVERNMENT RESTRICTED RIGHTS EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITYCABLETRON SOFTWARE PROGRAM LICENSE 2H23-50R/2H33-37R User’s GuideLASER RADIATION AND CONNECTORS SAFETY INFORMATION CLASS 1 LASER TRANSCEIVERSSAFETY INFORMATION CLASS 1 LASER TRANSCEIVERS 2H23-50R/2H33-37R User’s GuideApplication of Council Directives 89/336/EEC 73/23/EEC DECLARATION OF CONFORMITY2H23-50R/2H33-37R User’s Guide Manufacturer’s Name Cabletron Systems, Inc2H23-50R/2H33-37R User’s Guide CHAPTER CONTENTSINSTALLATION INTRODUCTIONCHAPTER ContentsTROUBLESHOOTING CHAPTER2H23-50R/2H33-37R User’s Guide ContentsSNMP Traps Screen SPECIFICATIONS ContentsSPECIFICATIONS OPTIONAL INSTALLATIONS ANDCHAPTER INTRODUCTION 1.1 USING THIS GUIDE1.2 STRUCTURE OF THIS GUIDE 1.3 OVERVIEW Chapter 1 IntroductionThe 2H23-50R is a high speed network repeater/switch device that provides four Ethernet networks and four Fast Ethernet networks RJ21 MicroLANs, CONN 1 through CONN 4 and two slots 5 and 6 for optional Fast Ethernet Interface Modules. The RJ21 connectors each consist of 12 repeater ports that are able to reside on the Ethernet 1.3.1 Connectivity 1.3.2 Full Duplex Switched Ethernet1.3.3 Auto-Negotiation 1.3.4 SmartTrunking 1.3.5 Runtime IP Address Discovery1.3.7 Switching Options 1.3.6 Management1.3.8 Standards Compatibility 1.3.10 LANVIEW Diagnostic LEDs1.4 OPTIONAL FEATURES 1.3.9 Year 2000 Compliant1.4.2 High Speed Interface Modules 1.4.1 Fast Ethernet Interface ModulesTable 1-1 Fast Ethernet Interface Modules Document Conventions 1.5 DOCUMENT CONVENTIONSThe following conventions are used throughout this document 2H23-50R/2H33-37R User’s Guide1.6 GETTING HELP 1.7 RELATED MANUALS 1-12 Chapter 1 Introduction2H23-50R/2H33-37R User’s Guide 2.1 SmartTrunk CHAPTER NETWORK REQUIREMENTS2.2 10BASE-T NETWORK Single Mode Fiber Cable Lengths 2.3 100BASE-TX NETWORK2.4 100BASE-FX FIBER OPTIC NETWORK Multimode Fiber Optic Cable LengthCHAPTER INSTALLATION 3.1 REQUIRED TOOLS3.3 INSTALLING OPTIONS 3.2 UNPACKING THE DEVICEGuidelines for Tabletop and Shelf Installations 3.4 INSTALLING THE DEVICE3.4.1 Tabletop or Shelf Installation Installation3.4.2 Rackmount Installation Guidelines for the Rackmount InstallationRack mounting the 2H23-50R or 2H33-37R involves the following Figure 3-4 Installing the Device in a Rack Figure 3-3 Installing the Rackmount BracketsRack Mounting the Device 3.4.3 Connecting Power to the Device 3.5 CONNECTING TO THE NETWORK 3.5.1 Connecting Cables to CONN 1 Through 3.5.2 Connecting a UTP Segment to the FE-100TX 100 FE-100TX Figure 3-7 FE-100TX Crossover SwitchFigure 3-8 Cable Pinouts - RJ45 Crossover Cable 2251-31Figure 3-9 FE100-TX Port Connection RX LED TX LED3.5.3 Connecting a Fiber Optic Segment to the FE-100FX and FE-100F3 RX LED SC ConnectorFigure 3-10 Fiber Optic Cable Connection TX LED3.6 COMPLETING THE INSTALLATION 3-16 Chapter 3 Installation2H23-50R/2H33-37R User’s Guide CHAPTER TROUBLESHOOTING 4.1 USING LANVIEWFlashing indicates an LED ﬂashing randomly Chapter 4 Troubleshooting2H23-50R/2H33-37R User’s Guide Table 4-1 LANVIEW LEDs Using LANVIEW2H23-50R/2H33-37R User’s Guide Color2H23-50R/2H33-37R User’s Guide Chapter 4 TroubleshootingTable 4-1 LANVIEW LEDs Continued 4.2 FE-100TX LED 100 LED Receive RX LEDTable 4-3 10/100 LED Indications When RX LED Is Off Chapter 4 TroubleshootingTable 4-2 10/100 LED Indications When RX LED Is On A link exists if the associated port 5 or 6 RX LED is onTable 4-4 Troubleshooting Checklist 4.3 TROUBLESHOOTING CHECKLISTTroubleshooting Checklist 2H23-50R/2H33-37R User’s Guide4.4 USING THE RESET BUTTON downtime of up to two minutes will result from this actionCHAPTER LOCAL MANAGEMENT 5.1 OVERVIEW2H23-50R/2H33-37R User’s Guide 5.2 LOCAL MANAGEMENT KEYBOARD CONVENTIONSChapter 5 Local Management Table 5-1 Keyboard Conventions5.3 MANAGEMENT TERMINAL SETUP 5.3.1 Console Cable Connection Management Terminal ConnectionTable 5-2 VT Terminal Setup 5.3.2 Management Terminal Setup ParametersManagement Terminal Setup 2H23-50R/2H33-37R User’s Guide5.3.3 Telnet Connections 5.3.4 Monitoring an Uninterruptible Power Supply 5.4 ACCESSING LOCAL MANAGEMENT Figure 5-3 Local Management Password Screen5.4.1 Navigating Local Management Screens Chapter 5 Local Management Figure 5-4 802.1D Switching Mode, LM Screen HierarchyFigure 5-5 802.1Q Switching Mode, LM Screen Hierarchy 5-105.4.2 Selecting Local Management Menu Screen Items 5.4.3 Exiting Local Management ScreensTo exit LM using the RETURN command, proceed as follows Device Menu Screen 5.5 DEVICE MENU SCREENDEVICE CONFIGURATION 2H23-50R/2H33-37R User’s GuideDEVICE STATISTICS DEVICE CONFIGURATIONNETWORK TOOLS SWITCH CONFIGURATION SMARTTRUNK CONFIGURATION 5.6 DEVICE CONFIGURATION MENU SCREENSection 5.7.9 provides instructions on setting the operational mode SMARTTRUNK CONFIGURATION GENERAL CONFIGURATIONSWITCH CONFIGURATION DEVICE SPECIFIC CONFIGURATION5.7 GENERAL CONFIGURATION SCREEN Subnet Mask Modiﬁable Default Gateway ModiﬁableIP Address Modiﬁable TFTP Gateway IP Addr ModiﬁableDisplays the total time that the device has been operating Clear NVRAM Toggle Com ToggleApplication Toggle IP Fragmentation Toggle5.7.1 Setting the IP Address 5.7.2 Setting the Subnet Mask Figure 5-11 Conﬁguration Warning Screen5.7.3 Setting the Default Gateway 5.7.4 Setting the TFTP Gateway IP Address5.7.5 Setting the Device Date 5.7.6 Setting the Device Time 5.7.7 Entering a New Screen Refresh Time5.7.9 Setting the Operational Mode 5.7.8 Setting the Screen Lockout Time802.1D SWITCHING, 802.1Q SWITCHING, or SECURE FAST VLAN 5-27 General Conﬁguration Screen2H23-50R/2H33-37R User’s Guide Figure 5-12 Conﬁguration Warning Screen5.7.10 Conﬁguring the COM Port General Conﬁguration Screen 6. When the message “SAVED OK” displays, the edits you made are saved4. Use the arrow keys to highlight YES. Press ENTER 2H23-50R/2H33-37R User’s Guide5.7.10.1 Changing the COM Port Application 5.7.11 Clearing NVRAMClear NVRAM as follows 5.7.12 Enabling/Disabling IP Fragmentation 5.8 SNMP COMMUNITY NAMES SCREEN Figure 5-15 SNMP Community Names ScreenAccess Policy Read-Only Community Name Modiﬁable5.8.1 Establishing Community Names 5.9 SNMP TRAPS SCREEN 5.9.1 Conﬁguring the Trap Table Enable Traps Toggle5.10 SWITCH CONFIGURATION SCREEN Figure 5-17 Switch Conﬁguration Screen Switch Conﬁguration ScreenSwitch Address Read-Only Number of Ports Read-OnlyAge Time Modiﬁable Type of STA SelectablePort # Read-Only Displays the hardware address assigned to each listed port 5.10.2 Setting the Age Time Field 5.10.1 Setting the STA5.10.3 Setting Enabling or Disabling the Port Status 5.11 DEVICE SPECIFIC CONFIGURATION MENU SCREEN Figure 5-18 Device Speciﬁc Conﬁguration Menu ScreenPort Based VLAN User’s Guide HIGH SPEED INTERFACE CONFIGURATION802.1Q VLAN CONFIGURATION SYSTEM RESOURCES5.12 SYSTEM RESOURCES SCREEN REPEATER CONFIGURATION MENUDRAM Installed Read-only 5.12.1 Setting the Reset Peak Switch UtilizationFlash Memory Installed Read-only NVRAM Installed Read-only5.13 HIGH SPEED INTERFACE CONFIGURATION SCREEN 2H23-50R ONLY Port Type Read-only Link Status Read-onlyCurrent Oper. Mode Read-only Desired Oper. Mode Selectable5.13.1.1 Setting the FE-100FX or FE-100F3 Operational Mode 5.13.1 Conﬁguring an FE-100FX or FE-100F35.13.2.2 Setting the FE-100TX Advertised Ability 5.13.2.1 Setting the FE-100TX Operational Mode5.13.2 Conﬁguring an FE-100TX 5.14 FLASH DOWNLOAD SCREEN The following brieﬂy deﬁnes each ﬁeld of the Flash Download screen Download Method SelectableLast Image Server IP Read-only Reboot After Download Modiﬁable only when the user chooses RUNTIMETFTP Gateway IP Addr Selectable Last Image File Name Read-only5.14.1 Image File Download Using BootP 5.14.2 Image File Download Using TFTP5.14.3 Image File Download Using Runtime 5.15 PORT REDIRECT FUNCTION SCREEN Table 5-6 CONN/Port OrganizationShows which ports are currently set as destination ports 5.15.1 Displaying the Source and Destination Entries 5.15.2 Changing Source and Destination Ports 5.16 BROADCAST SUPPRESSION SCREEN Broadcast frames received above the threshold setting are droppedThe following explains each ﬁeld of the Broadcast Suppression screen 5.16.1 Setting the Threshold 5.16.2 Setting the Reset Peak5.17 THE VLAN MAIN MENU 802.1Q SCREEN Figure 5-24 VLAN Main Menu Screen5.18 REPEATER CONFIGURATION MENU SCREEN Figure 5-25 Repeater Conﬁguration Menu ScreenDEVICE LEVEL SECURITY CONFIGURATION 5.19 REPEATER PORT CONFIGURATION SCREENREPEATER PORT CONFIGURATION PORT LEVEL SECURITY CONFIGURATIONFigure 5-26 Repeater Port Conﬁguration Screen PORT# Read-onlyTable 5-8 CONN/Repeater Port Relationship Displays the Link status Link or No Link of the port 5.19.1 Setting the Port Operating Mode 5.19.3 Setting All Ports 5.19.2 Enabling /Disabling Ports5.20 DEVICE LEVEL SECURITY CONFIGURATION 5.19.4 Enabling/Disabling Network PortsConnector Read-Only Figure 5-27 Device Level Security Conﬁguration ScreenSecurity State Selectable Table 5-10 CONN/Repeater Port Relationship5.20.1 Setting the Device Level Security 2H23-50R/2H33-37R User’s Guide 5.21 PORT LEVEL SECURITY CONFIGURATION SCREENPort Level Security Conﬁguration Screen 5-75Table 5-11 CONN/Repeater Port Relationship Port Read-onlyNetwork Read-only Table 5-12 CONN/Network OrganizationAction On Intruder Toggle Port Level Security Conﬁguration ScreenSecurity State Selectable 2H23-50R/2H33-37R User’s Guide5.21.1 Setting the Port Level Security Address Modiﬁable5.22 DEVICE STATISTICS MENU SCREEN The Device Statistics Menu screen displays the following menu items 5.23 SWITCH STATISTICS SCREEN REPEATER STATISTICSThe Switch Statistics screen displays the following ﬁelds 5.24 INTERFACE STATISTICS SCREEN CLEAR COUNTERS CommandName Read-Only InErrors Read-OnlyInterface Read-Only InOctets Read-OnlyOutOctets Read-Only OutErrors Read-OnlyAdmin Status Read-Only OutUnicast Read-Only5.24.1 Displaying Interface Statistics 5.24.2 Using the Clear Counters Command 5.25 RMON STATISTICS SCREENThe following brieﬂy deﬁnes each ﬁeld of the RMON Statistics screen Collisions Read-only CRC Align Errors Read-onlyDrop Events Read-only Broadcast Pkts Read-onlyTotal Packets Read-only Fragments Read-onlyJabbers Read-only Total Octets Read-only5.25.2 Using the Clear Counters Command 5.25.1 Displaying RMON StatisticsOperating statistics for each repeater port 1 through 48 for the 5.26 REPEATER STATISTICS SCREENThe following describes each ﬁeld of the Repeater Statistics screen For details on how to use this ﬁeld, refer to Section Displays the total number of errors 5.26.2 Displaying Network Port Statistics 5.26.1 Displaying Network StatisticsPORT # Command 5.26.3 Using the Clear Counters Command 5.27 NETWORK TOOLSOptions SyntaxDescription ExampleSyntax 5.27.1 Built-in Commandsarp options OptionsDescription ExampleSyntax OptionsOptions SyntaxDescription ExampleDescription ExampleSyntax OptionsOptions SyntaxresetNot Applicable ExampleSyntax not reached, the command displays all next-hopExample DescriptionExample OptionsNot Applicable SyntaxSyntax Examplelinktrap DescriptionSyntax The atmstpstate command allows the user tooption as enable, disable, or status. The STATE DescriptionDescription 5.27.2 Special CommandsSyntax Options5-108 Chapter 5 Local Management2H23-50R/2H33-37R User’s Guide A.1 DEVICE SPECIFICATIONS APPENDIX A SPECIFICATIONSA.2 PHYSICAL PROPERTIES A.4 ENVIRONMENTAL REQUIREMENTS A.3 ELECTRICAL SPECIFICATIONSA.5 INPUT/OUTPUT PORTS A.6 COM PORT PINOUT ASSIGNMENTS A.7 REGULATORY COMPLIANCEAppendix A Speciﬁcations 2H23-50R/2H33-37R User’s GuideAPPENDIX B FE-100TX, FE-100FX, AND FE-100F3 SPECIFICATIONS B.1 FE-100TXAppendix B FE-100TX, FE-100FX, and FE-100F3 Speciﬁcations B.2 FE-100FX2H23-50R/2H33-37R User’s Guide 2H23-50R/2H33-37R User’s Guide B.3 FE-100F3FE-100F3 FE-100f3Appendix B FE-100TX, FE-100FX, and FE-100F3 Speciﬁcations 2H23-50R/2H33-37R User’s GuideAPPENDIX C OPTIONAL INSTALLATIONS AND MODE SWITCH BANK SETTINGS C.1 REQUIRED TOOLSAppendix C Optional Installations and Mode Switch Bank Settings C.2 REMOVING THE CHASSIS COVER2H23-50R/2H33-37R User’s Guide To remove the chassis cover, proceed as follows C.2.1 Setting the Mode Switches Figure C-1 Removing the Chassis CoverSwitches 1 through 4 - For Cabletron Systems use only Switch deﬁnitions and positions are as followsFigure C-2 Mode Switch Location/Component Layout Switch 7 - Clear NVRAM. Changing the position of this switch resets NVRAM on the next power-up. All user-entered parameters, such as the IP address, device names, etc., are reset to the factory default settings. Once the device resets, you can either use the factory default settings or reenter your own parameters Figure C-3 Fast Ethernet Interface Module Connector Location C.3 INSTALLING OPTIONAL FAST ETHERNET INTERFACE MODULESInstalling Optional Fast Ethernet Interface Modules Primary Power SupplyTo install a Fast Ethernet Interface Module in port slot 5 or 6 of the 2. Remove the screw from the rear standoff. Save the screw Installing Optional Fast Ethernet Interface Modules2H23-50R/2H33-37R User’s Guide 7. Reinstall the cover 2H23-50R/2H33-37R User’s Guide INDEXNumerics Index-1Index-2 Index2H23-50R/2H33-37R User’s Guide 2H23-50R/2H33-37R User’s Guide IndexIndex-3 Index-4 Index2H23-50R/2H33-37R User’s Guide 2H23-50R/2H33-37R User’s Guide IndexIndex-5 Index-6 Index2H23-50R/2H33-37R User’s Guide