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IBM 8260 manual ∙ Physical Port List, Physical Port Protocol Parameters, ∙ Logical Port Parameters

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	Config *	Ports Menu	Module:
				BladeRunner
			Time:	15:30 5 Jan

Physical Port List

Physical Port Protocol Parameters

Physical Port Interface Parameters

Logical Port Parameters

Logical Port Multilink Parameters

Exit

	Return to the previous screen

Figure 145. LMS Port Menu Panel

The parameters shown in this panel are each applicable to certain environments as described below:

∙Physical Port List

∙

∙

This option is applicable to all the WAN and LAN ports. Note that at the time of writing this book, IBM was not offering any I/O card for WAN connection.

Physical Port Protocol Parameters

This option is applicable to WAN and token-ring ports. It does not apply to Ethernet ports.

Physical Port Interface Parameters

This option is applicable to WAN ports only; therefore, we will not cover it in the remainder of this book.

∙Logical Port Parameters

This option allows you to configure logical ports for the Multiprotocol Interconnect module. LAN logical ports are created automatically (one per physical port) and take the number of the physical port on which they reside. When using a Multiprotocol Interconnect module with LAN only attachments, you do not need to perform any action using this panel.

WAN logical ports can be created by entering a port number in the range

(13-253) and attaching it to a WAN physical port. As WAN I/O cards are not currently available for the Multiprotocol Interconnect module, this process will not be discussed in this book.

∙Logical Port Multilink Parameters

This option allows you to provide load sharing over a number of WAN logical ports to the same destination. Therefore, Logical Multilink Ports are not

256 8260 Multiprotocol Intelligent Switching Hub

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IBM 8260 manual ∙ Physical Port List, Physical Port Protocol Parameters, Physical Port Interface Parameters

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 ModulesSpeed Detection Active Modules 149 Passive Modules Configuring the Dual Fiber Repeater Module 188Jitter Attenuator Daughter Card Jadc 185Appendix A. Power Requirements for 8250/8260 Modules Multiprotocol Interconnect ModuleBackplane Path Display for Ethernet Segments Output from Show Community CommandSample of Hierarchical Structure Command Forced Termination of Existing DMM Users116 Configuring Port Redundancy for 8260 Ethernet ModulesFront View of 10-Port 10Base-FB Module 115 135An Example of Rmon Implementation 133 Displaying the Status of Surrogate Features 234 134182 228LMS Ospf System Parameter Panel LMS Ospf Default RIP Convert Table PanelLMS Ospf Default Static Convert Table Panel Tables Xiv 8260 Multiprotocol Intelligent Switching Hub Special Notices AIX Preface How This Document is OrganizedInternational Technical Support Organization Publications How to Order Itso Technical Bulletins RedbooksRelated Publications Acknowledgments Xx 8260 Multiprotocol Intelligent Switching Hub An Overview of the IBM 8260 Hub IntroductionMultiprotocol Intelligent Switching Hub 1.1 8260 Backplane 8260 Hardware DescriptionIBM 8260 Model 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 SubsystemDistributed Management Architecture Intelligent Cooling Subsystem3 8260 Model 1.1 8260 Ethernet 24-Port 10Base-T Module 8260 Modules and Daughter CardsEthernet Modules Token-Ring Modules Management and Controller Modules 3.4 8260 Token-Ring Media Access Daughter Card T-MAC 3.2 8260 Fault-Tolerant Controller moduleEthernet Media Access Daughter Card E-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 Local collision ∙ Data enable signalData in NRZ format Remote CollisionStatistics Collection Digital Collision DetectionAnalog Collision Detection 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 − Out-of-band and in-band downloading − Configuration− Statistics and fault reporting − 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 Command∙ Administrator Configuring DMM UsersThree types of users can be used to access DMM ∙ User8260A show login Changing Superuser Password8260A clear login index all Display of Defined DMM UsersSet terminal console baud Resetting Superuser Password to Factory DefaultConfiguring Terminal Settings for DMM ∙ Set Terminal ConsoleSet terminal console databits 8260A set terminal console mode commandlineSet terminal console mode slip Set terminal console stopbitsSet ip ipaddress 9.67.46.1 slip Set ip defaultgateway 9.67.46.2 slipSet terminal console hangup enable Set ip ipaddress ff.ff.ff.f0 slipShow terminal Configuring DMM Device8260A set terminal timeout Set clock 1545 95/1/19 Thursday− Device diagnostics ∙ Set Device8260A set device diagnostics disable 8260A set device macaddrorder noncanonical8260A set device dipconfiguration enable 8260A set device resetmastership enable8260A set device dipconfiguration disable 8260A set device trapreceiver enable8260A show device Configuring DMM IP Parameters8260A save device 8260A set ip ipaddress 9.67.46.235 tokenring108260A show ip 8260A set ip defaultgateway 9.67.46.238 tokenring108260A set ip activedefaultgateway 8260A clear ip index8260A show community Configuring DMM Snmp Parameters8260A set community public 9.67.46.45 all 8260A set alert hello enable 8260A set alert authentication enable8260A set alert change enable 8260A set alert consoledisplay enableEC-DMM Ethernet Carrier Distributed Management Module 8260A set alert portupdown enabledisablefilter8260A set port 2.1 alterfilter enabledisable 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 show module 1.2 verbose 8260A set module 2.2 interface enabledisablestandby8260A set module 2.2 network ethernet1 Configuring T-MAC Token-Ring MAC Daughter Card T-MAC8260A set module 6.2 interface enabledisablestandby 8260A set module 6.2 earlytokenrelease enable disable8260A set module 6.2 monitorcontention enable disable 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 Power Management Considerations Installing 8250 Module in a Hub Not Managed by DMMControlling Power to the 8260 Modules SET Power Slot slot Mode enabledisable∙ Show Hub Power Management Scenarios∙ a Power-Supply Failure Scenario ∙ 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 CSMA/CD Ethernet ModulesEthernet LAN Overview Data Integrity Ethernet Addressing ModeFrame Size 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 SET Port slot.port Network network Configuring the 10Base-T Module10Base-T Module Usage SET Port slot.port Mode NON-REDUNDANT SET Port slot.port Mode enabledisableSET Port slot.port Mode Redundant slot.port 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 8260A set module 7.2 network ethernet3 Configuring the Security Module8260A set security port 2.15 auto-learning enable 8260A show security network ethernet38260A set security network ethernet3 auto-learning disable 8260A set security network ethernet3 auto-learning enable8260A set security network ethernet3 mode enable Output from this command for our network is shown in Figure8260A save security addresstable 8260A set security port 2.15 jamming enable8260A set security port 2.15 intruderchecking enable 8260A set security network ethernet3 intruderjamming enable An example of the resulting display is shown in Figure8260A set security port 2.15 failsafe enable Ring Operation Token-Ring SupportToken-Ring LAN Overview 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 on Passive Modules Speed DetectionSpeed Detection on Active 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 ModuleMerge Manager Trunk Unwrapping on the Per-Port Switching ModulesTrunk Unwrapping on the Module-Switching Modules Token-Ring Support 172 8260 Multiprotocol Intelligent Switching Hub Token-Ring Modules Configuring Token-Ring Network ParametersSET Network network Bcnrecovery enabledisable 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 Module slot.port Bcnthreshold SET Port slot.port Staticswitch enabledisabledActive Per-Port Switching Module SET Port slot.port Network network 8260 20-Port Passive Module Switching Module 8260 18-Port Active Module Switching ModuleConfiguring the 18-Port Active 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 Enable/disable trunks Configuring the Dual Fiber Repeater ModuleSET Port slot.port Staticswitch enable SET Port slot.port mode enabledisable 190 8260 Multiprotocol Intelligent Switching Hub Rmon Support Rmon OverviewNetwork Probes Rmon Manager An Example of Rmon ImplementationOffline Operation Problem Detection and ReportingRmon Goals Preemptive MonitoringManaging the Ethernet LAN Environment Multiple ManagersStandards Managing Ethernet LANs with RmonStatistics Group Drop EventsPackets CRC Align ErrorOctets Broadcast PacketsCollisions History GroupFragments Packet Size StatisticsAlarm Group Matrix Group Host GroupHost Top N Group Filter Group Managing the Token-Ring LAN EnvironmentManaging Token-Ring LANs with Rmon Packet Capture Group202 8260 Multiprotocol Intelligent Switching Hub MAC Packet Drop EventMAC Octet Ring Purge EventBurst Error Line ErrorInternal Error Beacon TimeLost Frame Error ACErrorsAbort Error Congestion ErrorSoft Error Report Frequency ErrorToken Error Ring Poll EventTotal number of octets of data in good frames Normal in all networks. For example, when anTerminal is powered up, it generates some 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 Interface ethernetn isolated Show Counter Command for Ethernet NetworksShow Counter Ethernet 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 Rmon Host Interface interface index Set module slot.subslot interface enableSet module slot.subslot rmonprobe enable 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″ OptionShow Counter Rmon Trpromiscuous network SET Module slot.subslot Rmonmaclayerstats enableShow Counter Rmon Trmaclayer 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 Rmonsrcroutingstats enable SET Module slot.subslot Rmongroup enableSET Module slot.subslot Rmonpromiscuousstats 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 Remstatus∙ Status of CRS options Show Trsurrogate slot.subslot CrsstatusShow Trsurrogate slot.subslot Crsstation ALL ∙ Status of CRS Stations optionsShow Trsurrogate slot.subslot Remlastsofterror Displaying the Information Collected by Surrogate FeaturesShow Trsurrogate slot.subslot Remerrormacframe Show Trsurrogate slot.subslot RemisolatingSummary of T-MAC Monitoring Functions Using DOT5Group Functions10.8 DOT5Group Support by T-MAC 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 12VWhile in Maintenance mode, enter the following command SET Power Module slot.subslot PowerrequirementPut DMM in Maintenance mode using the following DMM command You will be prompted to enter the followingBridging Functions Do you want to enter this into module x.y′ s Eeprom Y/NIP Routing Support ∙ DECnet PhaseRouting Functions RIP ImplementationIPX Routing Support DECnet Phase IV Routing SupportConfiguring Multiprotocol Interconnect Module Local Management System LMS SET Port slot.port Network ethernetnisolated∙ Status Menu ∙ Configuration Menu∙ Enable/Disable Write Access ∙ HelpLMS Short Cut Commands Dot1dBridge Group Snmp Support∙ Close Connection Configuring the Interconnect Module Using LMS Configuring System Wide Parameters ∙ Exit ∙ Reset Unit∙ Change Password IP Address Community NameTftp Server IP Address Tftp Filename Configuring Port Parameters Physical Port Interface Parameters ∙ Physical Port ListPhysical Port Protocol 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∙ Ring Speed ∙ CommandsThis panel allows you to specify the following options ∙ Act Mon ParConfiguring Logical Port Parameters ∙ Encapsulation Port Configuration SummaryConfiguring for Bridging Support ∙ Attach Port and Detach PortConfiguring for Transparent Bridging Bridging Facility must be enabled− Time-To-Forget in seconds ∙ Security Mode− Time-To-Delete in seconds ∙ Source Address Filtering ∙ Custom Filtering∙ Source Address Learning ∙ Always Accept Multicast∙ Bridge Hello Time ∙ Bridge Forward Delay Time∙ STP Facility ∙ STP Domain Address∙ Bridge Max Age Time ∙ STP VersionManual Port Path Cost Configuring for Source-Route Transparent BridgingPath Cost Mode ∙ Port Priority∙ Largest Frame ∙ Hop Count∙ Local Segment ∙ Port STE SpanModeConfiguring for Translational Bridging ∙ Snap Conversion∙ IPX Conversion Filtering for Bridging FunctionsTransparent Bridging Filtering Database ∙ Disposition Entries in the filtering database consist∙ MAC Address ∙ Scope − Unlearned +− Management% − Permanent$− Static Operating Modes for Bridging Ports Normal ModeSecurity Mode ∙ Time-to-ForgetBroadcast/Multicast Filtering Destination Address FilteringSource Address Filtering Custom Filtering∙ Filter Start Point ID NumberTest Name ∙ Offset∙ Logical Operator ∙ Value∙ Action on Success ∙ ID Number∙ Test Name ∙ Action on FailureConfiguring for Routing Functions Configuring for IP Routing LMS IP PanelLMS IP Port Address Table Panel ∙ IP Routing ∙ ARP timeout∙ Reassembly timeout ∙ Router ID∙ Source Quench Default TTL∙ Proxy ARP ∙ RedirectLAN Encapsulation IP MtuRIP Path Cost ∙ Broadcast Form∙ Destination ∙ Security Access List n∙ Forward Broadcast Type ∙ Next HopMask ∙ Port∙ Type ∙ Network Address∙ Physical Address ∙ Boothelper ∙ Forward AddressConfiguring for Ospf LMS Ospf Menu Panel∙ AS Boundary Router ∙ Area Border Router∙ TOS Support ∙ Import RIP Routes∙ Import Static Routes ∙ Default Action on No Match for RIP Routes∙ Default Action on No Match for Static Routes ∙ IP Address − PointToPoint Point-to-Point links ∙ AdminStat∙ Trans Delay ∙ Area ID∙ RtdDeadInt TransDelayBackup Designated Router ∙ AuthKey∙ Import AS Extern LSA Area IDAuth Type ∙ SPF RunsThis is the 32-bit integer identifying the Stub Area Metric∙ Range Mask From the Ospf Menu. The resulting panel is shown in on∙ Range Net This parameter specifies the port number of this interface IP AddressPort ∙ RetransiInt Following parameters can be specified for each entryNeighbor ∙ RtrDeadInt∙ Options This parameter specifies the IP address of this neighborPort Router ID ∙ EventsIP Mask ActionThis parameter specifies hop count measured in RIP This parameter specifies the destination IP address maskHop Count 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∙ Operator ∙ IDProtocol ∙ Destination Address ∙ Source Address∙ Source Mask ∙ Option∙ Action on No Match ∙ List No∙ Transmit Check ∙ Receive CheckConfiguring for IPX Routing ∙ Icmp Generation∙ Internet Bcast Handling ∙ IPX Routing∙ IPX Security ∙ Network Number ∙ IPX Port Routing∙ Host Number ∙ Security List n ∙ Interface DelayMonitoring Multiprotocol Interconnect Module ∙ Station Statistics∙ Physical Interface Statistics ∙ Icmp Timers∙ Physical Port Protocol Statistics ∙ Logical Port Statistics Screen∙ DECnet IV Port Statistics ∙ Ospf Link State Database Table∙ DECnet IV System 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 Comments/Suggestions Itso Technical Bulletin EvaluationPlease answer the following questions USA Itso Technical Bulletin Evaluation RED000GG24-4370-00 Page GG24-4370-00