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IBM 8260 manual Port 10Base-T DIP Switches

Models: 8260

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Figure 71. 20/40-Port 10Base-T DIP Switches

The DIP switches let you perform the following:

∙Use DIP switch positions 1 through 4 to assign all the ports on the module to one of the backplane segments or an isolated-1 segment. Note that when using DIP switches, all the ports will be assigned to the same segment, so you cannot do per-port switching when using DIP switches for configuring the 8260 modules.

Table 20 shows the meaning of the settings for DIP switches 1 thru 4:

Table 20. 20/40-Port 10Base-T Module DIP Switch Settings

Network Selection	Switch 1	Switch 2	Switch 3	Switch 4

Ethernet_1	OFF	ON	ON	ON

Ethernet_2	ON	OFF	ON	ON

Ethernet_3	OFF	OFF	ON	ON

Ethernet_4	ON	ON	OFF	ON

Ethernet_5	OFF	ON	OFF	ON

Ethernet_6	ON	OFF	OFF	ON

Ethernet_7	OFF	OFF	OFF	ON

Ethernet_8	ON	ON	ON	OFF

Isolated_1	ON	ON	ON	ON

By default, these modules are shipped from the factory with the DIP switches set for Ethernet_1.

∙Use DIP switch position 5 to choose if the module is going to use the

Non-Volatile RAM (ON position) or DIP switch settings (OFF position) for its configuration. Note that if there is a management module installed in the 8260, this DIP switch determines which configuration (NVRAM or DIP switch

110 8260 Multiprotocol Intelligent Switching Hub

Image 132

IBM 8260 manual Port 10Base-T DIP Switches

Contents

Multiprotocol Intelligent Switching Hub Page Multiprotocol Intelligent Switching Hub First Edition May Take NoteAbstract Iv 8260 Multiprotocol Intelligent Switching Hub Contents Intelligent Power Management Subsystem Chapter Intelligent Cooling Subsystem Ethernet ModulesConfiguring the Dual Fiber Repeater Module 188 Jitter Attenuator Daughter Card JadcSpeed Detection Active Modules 149 Passive Modules 185Appendix A. Power Requirements for 8250/8260 Modules Multiprotocol Interconnect ModuleOutput from Show Community Command Sample of Hierarchical Structure CommandBackplane Path Display for Ethernet Segments Forced Termination of Existing DMM UsersConfiguring Port Redundancy for 8260 Ethernet Modules Front View of 10-Port 10Base-FB Module 115116 135133 Displaying the Status of Surrogate Features 234 134 182An Example of Rmon Implementation 228LMS Ospf Default RIP Convert Table Panel LMS Ospf Default Static Convert Table PanelLMS Ospf System Parameter Panel Tables Xiv 8260 Multiprotocol Intelligent Switching Hub Special Notices AIX Preface How This Document is OrganizedHow to Order Itso Technical Bulletins Redbooks Related PublicationsInternational Technical Support Organization Publications Acknowledgments Xx 8260 Multiprotocol Intelligent Switching Hub An Overview of the IBM 8260 Hub IntroductionMultiprotocol Intelligent Switching Hub 8260 Hardware Description IBM 8260 Model1.1 8260 Backplane There are three models 8260-017 8260-010 8260-17APayload Area IBM 8260 ModelComponents of the 8250 Adapter Kit Fault-Tolerant Controller Module Slots Intelligent Power SubsystemIntelligent Cooling Subsystem 3 8260 ModelDistributed Management Architecture 8260 Modules and Daughter Cards Ethernet Modules1.1 8260 Ethernet 24-Port 10Base-T Module Token-Ring Modules Management and Controller Modules 3.2 8260 Fault-Tolerant Controller module Ethernet Media Access Daughter Card E-MAC3.4 8260 Token-Ring Media Access Daughter Card T-MAC 12 8260 Multiprotocol Intelligent Switching Hub Backplane Architecture LAN Segments on the BackplaneEnhanced TriChannel Bus Ethernet Segments on the Backplane ShuntBusShow Backplanepaths Ethernet Description Method ∙ Data enable signal Data in NRZ formatLocal collision Remote CollisionDigital Collision Detection Analog Collision DetectionStatistics Collection Token-Ring Segments on the BackplaneSET Module slot.sublsot Network tokenringn Show Backplanepaths TokenringShuntBus and Token-Ring Fddi Segments on the Backplane SET Module slot.sublsot Network FDDInAn example of the output from this command is shown in on Network Allocations on the 8260 BackplaneTriChannel Backplane Network Allocation ShuntBus Backplane Network Allocation Management Buses Management LAN MlanSerial Control Interface SCI Management Buses28 8260 Multiprotocol Intelligent Switching Hub Fault Tolerant Controller Module 8260 Fault Tolerant Controller Module OverviewController Module Front Panel Front View of the Controller ModuleHub Reset Button LED Test ButtonController Module Fault Tolerance 4 8260 Fault Tolerant Controller Module Considerations 34 8260 Multiprotocol Intelligent Switching Hub Distributed Management Architecture 8260 Distributed Management Architecture36 8260 Multiprotocol Intelligent Switching Hub − Configuration − Statistics and fault reporting− Out-of-band and in-band downloading − Snmp supportIP Addressing for DMM Unpacking and Installing the DMM Distributed Management Module DMMDMM LED Indicators On page 41 shows the meaning of the status LEDConsole and Auxiliary Ports LEDModems for Connecting Terminals to DMM Pin # Signal NameConfiguring the DMM Procedure CommandConfiguring DMM Users Three types of users can be used to access DMM∙ Administrator ∙ User8260A show login Changing Superuser Password8260A clear login index all Display of Defined DMM UsersResetting Superuser Password to Factory Default Configuring Terminal Settings for DMMSet terminal console baud ∙ Set Terminal Console8260A set terminal console mode commandline Set terminal console mode slipSet terminal console databits Set terminal console stopbitsSet ip defaultgateway 9.67.46.2 slip Set terminal console hangup enableSet ip ipaddress 9.67.46.1 slip Set ip ipaddress ff.ff.ff.f0 slipConfiguring DMM Device 8260A set terminal timeoutShow terminal Set clock 1545 95/1/19 Thursday− Device diagnostics ∙ Set Device8260A set device diagnostics disable 8260A set device macaddrorder noncanonical8260A set device resetmastership enable 8260A set device dipconfiguration disable8260A set device dipconfiguration enable 8260A set device trapreceiver enableConfiguring DMM IP Parameters 8260A save device8260A show device 8260A set ip ipaddress 9.67.46.235 tokenring108260A set ip defaultgateway 9.67.46.238 tokenring10 8260A set ip activedefaultgateway8260A show ip 8260A clear ip indexConfiguring DMM Snmp Parameters 8260A set community public 9.67.46.45 all8260A show community 8260A set alert authentication enable 8260A set alert change enable8260A set alert hello enable 8260A set alert consoledisplay enable8260A set alert portupdown enabledisablefilter 8260A set port 2.1 alterfilter enabledisableEC-DMM Ethernet Carrier Distributed Management Module Installing the EC-DMM EC-DMM Front PanelEC-DMM LED Description Jumpering for the EC-DMM DB-9 PortsMAC Daughter Cards Perport EC-DMM Configuration E-MAC Ethernet MAC Daughter Card E-MAC8260A set module 2.2 interface enabledisablestandby 8260A set module 2.2 network ethernet18260A show module 1.2 verbose Configuring T-MAC Token-Ring MAC Daughter Card T-MAC8260A set module 6.2 earlytokenrelease enable disable 8260A set module 6.2 monitorcontention enable disable8260A set module 6.2 interface enabledisablestandby 8260A set module 6.2 network tokenring10 8260A show module 6.2 verboseManaging 8260 Using DMM and 8250 xMM TOKENRING10Managing 8260 with DMM Managing 8260 with 8250 xMMOverview of Management and Control Commands Sample of Hierarchical Structure Command72 8260 Multiprotocol Intelligent Switching Hub Intelligent Power Management Subsystem Intelligent Power Management SubsystemPower Class SET Power Slot slot Class 1 toShow Power Slot slotall An example of the output for this command is shown in onConfiguring 8260 Power Supplies Show HUBShow Power Budget Non-Fault Tolerant Mode Output from Show Power Budget CommandFault Tolerant Mode SET Power Mode nonfaulttolerantSET Power Mode faulttolerant Load Sharing Power SuppliesManaging Power Installing 8260 Module in an 8260 Managed by DMMHUB Installing 8260 Module in an 8260 Not Managed by DMM Installing 8250 Module in a Hub Managed by DMMInstalling 8250 Modules in an 8260 Managed by DMM Installing 8250 Module in a Hub Not Managed by DMM Controlling Power to the 8260 ModulesPower Management Considerations SET Power Slot slot Mode enabledisablePower Management Scenarios ∙ a Power-Supply Failure Scenario∙ Show Hub ∙ Show Power Mode ∙ a Power Failure Scenario∙ Power Mode is Automatically Recovered Installing the 8260 Power Supply 90 8260 Multiprotocol Intelligent Switching Hub Intelligent Cooling Subsystem Fan Units92 8260 Multiprotocol Intelligent Switching Hub SET Overheatautopowerdown enabledisable Output from Show Power Mode CommandCooling Zones and Power Classes Flow Chart for an Overheat Condition 96 8260 Multiprotocol Intelligent Switching Hub Ethernet Modules Ethernet LAN OverviewCSMA/CD Ethernet Addressing Mode Frame SizeData Integrity 8260 Ethernet 24-Port 10Base-T Module Module Equivalent Distance meters LED Name Color State Description Expanded view of the DIP switches is shown in on Port 10Base-T Module Side ViewNetwork Selection Switch Configuring the 10Base-T Module 10Base-T Module UsageSET Port slot.port Network network SET Port slot.port Mode enabledisable SET Port slot.port Mode Redundant slot.portSET Port slot.port Mode NON-REDUNDANT SET Port slot.port Autopolarity enabledisable8260 Ethernet 20/40-Port 10Base-T Module Equivalent Distances for 20/40 10Base-T Modules Describes the meaning of these LEDs Front View of 20/40-Port 10Base-T Modules40-Port 10Base-T Module Side View 40-Port 10Base-T DIP Switches Configuring the 20/40-Port 10Base-T Modules SET Port slot.port Network networkSET Port slot.port Linkintegrity enabledisable SET Port slot.port Squelch normallow8260 Ethernet 10-Port 10Base-FB Module Equivalent Distances for Ethernet 10Base-FB Module LED Name Color State Description Port 10Base-FB Module Side View Port 10Base-FB DIP Switches Configuring the 10Base-FB Module 10Base-FB Module UsageConfiguring Port Redundancy for 8260 Ethernet Modules SET Port slot.port Highpower enabledisable 10 8260 Ethernet Modules Summary11 8260 Ethernet Security Daughter Card Operation of Security Card Intrusion ProtectionEavesdropping Protection Configuring the Security Module 8260A set security port 2.15 auto-learning enable8260A set module 7.2 network ethernet3 8260A show security network ethernet38260A set security network ethernet3 auto-learning enable 8260A set security network ethernet3 mode enable8260A set security network ethernet3 auto-learning disable Output from this command for our network is shown in Figure8260A set security port 2.15 jamming enable 8260A set security port 2.15 intruderchecking enable8260A save security addresstable 8260A set security network ethernet3 intruderjamming enable An example of the resulting display is shown in Figure8260A set security port 2.15 failsafe enable Token-Ring Support Token-Ring LAN OverviewRing Operation Ring Administration Active MonitorRing Errors Token-Claiming ProcessDifferential Manchester Coding Differential Manchester CodingClock Recovery Phase Jitter8260 Backplane Signalling for TR Segments Self-Shorting Relays on the ShuntBus Backplane Signalling for 4 Mbps Operation Backplane Signalling for 16 Mbps Operation Dual Phase Lock Loop Components of Dual Phase Lock Loop Dpll Implementation on Active Ports Jitter Attenuator Daughter Card Jadc Components of Dpll Implemented on JadcPassive Port Technology Active Port TechnologyPer-Port Switching on the Active Modules Token-Ring Per-Port Switching Static Switch on the Per-Port Switching Modules Static Switch Display for Active Per-Port Switching Ports Show Port slot.port VerboseSET Port slot.port Staticswitch enabledisable Switching Ports with Enabled Static SwitchSignal Flow on the 8260 Token-Ring Modules Port Switching with Source Routing BridgesSpeed Detection Speed Detection on Active ModulesSpeed Detection on Passive Modules SET Port slot.port Speeddetect enable/disable SET Module slot.subslot Speedthreshold 0 toBeacon Recovery Introduction Beacon RecoverySET Port slot.port Stationtype macnotpresent SET Trunk slot RINGIN.trunk port Networkmap externalinternalToken-Ring Support SET Device Beaconrecovery enabledisable SET Device Beacontimeout number of secondRecovery Asic Recovery Asic in Module Switching ModuleRecovery Asic in Per-Port Switching Module SH Module slot.subslot VerboseRing Monitor on the Per-Port Switching Module Display Output for 18-Port Active Per-Port Switching ModuleBeacon Recovery on the Module Switching Modules Beacon Recovery on the Per-port Switching Modules Beacon Recovery on the Module Switching ModulesAddress-to-Port Mapping for Module Switching Modules Address-to-Port Map Display for a Module Switching Module Support for Fan-Out Devices162 8260 Multiprotocol Intelligent Switching Hub SET Network Tokenring tokenringn Mismatchresolution enable Support for MAC-less StationsAddress-to-Port Mapping for Per-Port Switching Modules Address-to-Port Map Display for MAC-less StationsToken-Ring Support Address-to-Port Map Display for a Per-Port Switching Module Dual-Ring Topology Trunk Wrapping on the Active Per-Port Switching Modules Wrapback in Dual-Ring TopologyTrunk Wrapping on the Active Module-Switching Modules Trunk Wrapping in Active Per-Port Switching ModuleTrunk Unwrapping on the Per-Port Switching Modules Trunk Unwrapping on the Module-Switching ModulesMerge Manager Token-Ring Support 172 8260 Multiprotocol Intelligent Switching Hub Configuring Token-Ring Network Parameters SET Network network Bcnrecovery enabledisableToken-Ring Modules SET Network network Ringspeed 4mbps16Mbps8260 18-Port Active Per-Port Switching Module SET Network network Mismatchresolution enableFront View of 18-Port Active Per-Port Switching Module Port Active Per-Port Switching Module Side View Configuring the 18-Port Active Per-Port Switching Module SET Port slot.port Staticswitch enabledisabled Active Per-Port Switching ModuleSET Module slot.port Bcnthreshold SET Port slot.port Network network 8260 18-Port Active Module Switching Module Configuring the 18-Port Active Module Switching Module8260 20-Port Passive Module Switching Module SET Module slot.subslot Network networkToken-Ring Modules Front View of 20-Port Passive Module Configuring the 20-Port Passive Module Port Passive Module Module Side ViewSET Port slot.port Speeddetect enabledisable SET Module slot.port Speedthreshold8260 Dual Fiber Repeater Module Front View of Dual Fiber Repeater Module RI/RO Configuring the Dual Fiber Repeater Module SET Port slot.port Staticswitch enableEnable/disable trunks SET Port slot.port mode enabledisable 190 8260 Multiprotocol Intelligent Switching Hub Rmon Support Rmon OverviewNetwork Probes Rmon Manager An Example of Rmon ImplementationProblem Detection and Reporting Rmon GoalsOffline Operation Preemptive MonitoringMultiple Managers StandardsManaging the Ethernet LAN Environment Managing Ethernet LANs with RmonStatistics Group Drop EventsCRC Align Error OctetsPackets Broadcast PacketsHistory Group FragmentsCollisions Packet Size StatisticsAlarm Group Host Group Host Top N GroupMatrix Group Managing the Token-Ring LAN Environment Managing Token-Ring LANs with RmonFilter Group Packet Capture Group202 8260 Multiprotocol Intelligent Switching Hub Drop Event MAC OctetMAC Packet Ring Purge EventLine Error Internal ErrorBurst Error Beacon TimeACErrors Abort ErrorLost Frame Error Congestion ErrorFrequency Error Token ErrorSoft Error Report Ring Poll EventNormal in all networks. For example, when an Terminal is powered up, it generates someTotal number of octets of data in good frames Received on the network in non-MAC packets208 8260 Multiprotocol Intelligent Switching Hub Ring Station Group RingStationControlTable RingStationTableRing Station Order Group Ring Station Configuration Group Source Routing GroupMonitoring Functions Supported Monitoring Functions Supported by E-MAC 8260A show interfaceHost History Alarm Event Matrix Statistics TopN-hosts Monitoring Functions Supported by T-MACShow Counter Command for Ethernet Networks Show Counter Ethernet ethernetn isolatedShow Counter Interface ethernetn isolated Show Counter Interface for Ethernet Segment Show Counter Rmon Hosts network all macaddress Show Counter Repeater for Ethernet SegmentCollecting and Displaying Rmon Groups Using E-MAC SET Rmon Host Interface indexSet module slot.subslot interface enable Set module slot.subslot rmonprobe enableSET Rmon Host Interface interface index SET Rmon History Interface interface indexSet rmon host ethernet interface Show Rmon rmongroup Control ALLShow Rmon statistics Ethernet Control ALL Show Rmon rmon group Data controlindex dataindexShow Counter Command for Token-Ring Networks Show Counter Tokenring tokenringnSET Module slot.subalot DOT5GROUP enable Show Counter Interface token-ringn isolated8260A show counter interface tokenring7 SET Module slot.subslot Rmonhoststats enable Show Counter Rmon Ringstation network all macaddress ring8260A show counter rmon ringstation tokenring7 ring SET Module slot.subslot Rmonringstationstats enable Show Counter Rmon Ringstation Using ″all″ OptionSET Module slot.subslot Rmonmaclayerstats enable Show Counter Rmon Trmaclayer networkShow Counter Rmon Trpromiscuous network SET Module slot.subslot Promiscuousstats enable Show Counter Rmon Trsourcerouring networkCollecting and Displaying Rmon Groups Using T-MAC SET Module slot.subslot Srroutingstats enableSET Module slot.subslot Rmongroup enable SET Module slot.subslot Rmonpromiscuousstats enableSET Module slot.subslot Rmonsrcroutingstats enable Set module 8.2 rmonhoststats enableSurrogate Functions Supported by T-MAC Show Counter Rmon rmon group networkUsing T-MAC Surrogate Functions Enabling Surrogate FeaturesEnabling Individual Options within the Surrogate Groups Show Trsurrogate slot.subslot RemstatusShow Trsurrogate slot.subslot Crsstatus Show Trsurrogate slot.subslot Crsstation ALL∙ Status of CRS options ∙ Status of CRS Stations optionsDisplaying the Information Collected by Surrogate Features Show Trsurrogate slot.subslot RemerrormacframeShow Trsurrogate slot.subslot Remlastsofterror Show Trsurrogate slot.subslot RemisolatingUsing DOT5Group Functions 10.8 DOT5Group Support by T-MACSummary of T-MAC Monitoring Functions 2 of 2. Functions Performed by T-MAC Multiprotocol Interconnect Module 239240 8260 Multiprotocol Intelligent Switching Hub Front View of the Multiprotocol Interconnect Modules Power Requirements for Multiprotocol Interconnect Module 12VSET Power Module slot.subslot Powerrequirement Put DMM in Maintenance mode using the following DMM commandWhile in Maintenance mode, enter the following command You will be prompted to enter the followingBridging Functions Do you want to enter this into module x.y′ s Eeprom Y/N∙ DECnet Phase Routing FunctionsIP Routing Support RIP ImplementationDECnet Phase IV Routing Support Configuring Multiprotocol Interconnect ModuleIPX Routing Support Local Management System LMS SET Port slot.port Network ethernetnisolated∙ Configuration Menu ∙ Enable/Disable Write Access∙ Status Menu ∙ HelpLMS Short Cut Commands Snmp Support ∙ Close ConnectionDot1dBridge Group Configuring the Interconnect Module Using LMS Configuring System Wide Parameters ∙ Reset Unit ∙ Change Password∙ Exit IP Address Community NameTftp Server IP Address Tftp Filename Configuring Port Parameters ∙ Physical Port List Physical Port Protocol ParametersPhysical Port Interface Parameters ∙ Logical Port ParametersConfiguring Physical Port Parameters LMS Physical Port List for Ethernet ConnectionsConfiguring Physical Port Protocol Parameters LMS Physical Ports List for Token-Ring I/O Cards∙ Commands This panel allows you to specify the following options∙ Ring Speed ∙ Act Mon ParConfiguring Logical Port Parameters Port Configuration Summary Configuring for Bridging Support∙ Encapsulation ∙ Attach Port and Detach PortConfiguring for Transparent Bridging Bridging Facility must be enabled∙ Security Mode − Time-To-Delete in seconds− Time-To-Forget in seconds ∙ Custom Filtering ∙ Source Address Learning∙ Source Address Filtering ∙ Always Accept Multicast∙ Bridge Forward Delay Time ∙ STP Facility∙ Bridge Hello Time ∙ STP Domain Address∙ Bridge Max Age Time ∙ STP VersionConfiguring for Source-Route Transparent Bridging Path Cost ModeManual Port Path Cost ∙ Port Priority∙ Hop Count ∙ Local Segment∙ Largest Frame ∙ Port STE SpanModeConfiguring for Translational Bridging ∙ Snap ConversionFiltering for Bridging Functions Transparent Bridging Filtering Database∙ IPX Conversion Entries in the filtering database consist ∙ MAC Address ∙ Scope∙ Disposition − Unlearned +− Permanent$ − Static− Management% Normal Mode Security ModeOperating Modes for Bridging Ports ∙ Time-to-ForgetDestination Address Filtering Source Address FilteringBroadcast/Multicast Filtering Custom FilteringID Number Test Name∙ Filter Start Point ∙ Offset∙ Logical Operator ∙ Value∙ ID Number ∙ Test Name∙ Action on Success ∙ Action on FailureConfiguring for Routing Functions Configuring for IP Routing LMS IP PanelLMS IP Port Address Table Panel ∙ ARP timeout ∙ Reassembly timeout∙ IP Routing ∙ Router IDDefault TTL ∙ Proxy ARP∙ Source Quench ∙ RedirectIP Mtu RIP Path CostLAN Encapsulation ∙ Broadcast Form∙ Security Access List n ∙ Forward Broadcast∙ Destination ∙ Next Hop MaskType ∙ Port∙ Network Address ∙ Physical Address∙ Type ∙ Boothelper ∙ Forward AddressConfiguring for Ospf LMS Ospf Menu Panel∙ Area Border Router ∙ TOS Support∙ AS Boundary Router ∙ Import RIP Routes∙ Default Action on No Match for RIP Routes ∙ Default Action on No Match for Static Routes∙ Import Static Routes − PointToPoint Point-to-Point links ∙ AdminStat ∙ Trans Delay∙ IP Address ∙ Area IDTransDelay Backup Designated Router∙ RtdDeadInt ∙ AuthKeyArea ID Auth Type∙ Import AS Extern LSA ∙ SPF RunsThis is the 32-bit integer identifying the Stub Area MetricFrom the Ospf Menu. The resulting panel is shown in on ∙ Range Net∙ Range Mask IP Address PortThis parameter specifies the port number of this interface Following parameters can be specified for each entry Neighbor∙ RetransiInt ∙ RtrDeadIntThis parameter specifies the IP address of this neighbor Port Router ID∙ Options ∙ EventsIP Mask ActionThis parameter specifies the destination IP address mask Hop CountThis parameter specifies hop count measured in RIP Following parameters can be viewed/modified for each entry This parameter specifies the Type Of Service for this route This parameter specifies the destination IP addressThis parameter specifies the destination IP address mask This parameter specifies hop count for this static routeIP Security Following parameters can be viewed/modified for each entry∙ ID Protocol∙ Operator ∙ Source Address ∙ Source Mask∙ Destination Address ∙ Option∙ List No ∙ Transmit Check∙ Action on No Match ∙ Receive CheckConfiguring for IPX Routing ∙ Icmp Generation∙ IPX Routing ∙ IPX Security∙ Internet Bcast Handling ∙ IPX Port Routing ∙ Host Number∙ Network Number ∙ Interface Delay Monitoring Multiprotocol Interconnect Module∙ Security List n ∙ Station Statistics∙ Icmp Timers ∙ Physical Port Protocol Statistics∙ Physical Interface Statistics ∙ Logical Port Statistics Screen∙ Ospf Link State Database Table ∙ DECnet IV System Statistics∙ DECnet IV Port Statistics ∙ IPX System Statistics314 8260 Multiprotocol Intelligent Switching Hub Appendix A. Power Requirements for 8250/8260 Modules Power Requirements for 8250 Ethernet ModulesPower Requirements for 8250 Token-Ring Modules Power Requirements for 8250 Fddi ModulesPower Requirements for 8250 Internetworking Modules SR/SRT318 8260 Multiprotocol Intelligent Switching Hub Index Numerics UTPMAC DMM Ethernet Eeprom 324 8260 Multiprotocol Intelligent Switching Hub Rmon Token-ring bucket 208 Burst Error Index Page Itso Technical Bulletin Evaluation Please answer the following questionsComments/Suggestions Itso Technical Bulletin Evaluation RED000 GG24-4370-00USA Page GG24-4370-00