IBM Nways 8260 Bedienungsanleitung

International Technical Support Organization8260 Multiprotocol Intelligent Switching HubMay 1995GG24-4370-00

10.6.3 SHOW COUNTER Command for Ethernet Networks ... 21510.6.4 Collecting and Displaying RMON Groups Using E-MAC... 21810.6.5 SHOW COUNTER

 8260> show power budgetPower Management Information----------------------------Hub Power Budget :Voltage Type Voltage Level Watts Capacity Watts

Note: If a power supply fails and there is still enough power in the hub tooperate all the installed modules, the modules will continue their operatio

In fault-tolerant mode the 8260 does not reserve any specific power supply inreserve; instead, the reserved power is reserved across all the installed

5.4 Managing Power in the 8260The 8260 fault-tolerant Controller module provides extensive power managementfunctions for the 8260 and all its installe

 8260>8260> show inventoryHUB/ HardwareSlot Module Version Serial # Vendor Date----- ---------------- -------- ---------------- --------------

Figure 51. Installing 8260 Modules in an 8260 Managed by DMM5.4.2 Installing 8260 Module in an 8260 Not Managed by DMMWhen a new 8260 module is insert

2. The 8250 module sendsmodule typeinformation to the Controller module.The Controller module has no information about how much power isconsumed by t

5.4.4 Installing 8250 Module in a Hub Not Managed by DMMWhen a new 8250 module is inserted in a hub which is not managed by DMM,the process of applyin

•When the hub is in the fault-tolerant mode, the reserved power is reservedacross all installed power supplies. It is not an individual power supply o

 8260> show hubHub Information:Hub Type: 58G5801Power Supply Information:Power Supply Status------------ ------1 NORMAL2 NORMAL3 FAULTY4 REMOVEDT

Figures 1. IBM 8260 Model 017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Components of the 8250 Adapter Kit . . . . . . . .

system environment is changed and the power status has become non-faulttolerant due to a faulty power supply, as shown below. Message received from

DMM and a 24 PPS Ethernet module) and a number of 8250 modules. Both8260 modules have a power class of 3 assigned to them. Upon taking onepower supply

90 8260 Multiprotocol Intelligent Switching Hub

Chapter 6. 8260 Intelligent Cooling SubsystemThis chapter provides you with information about the 8260 intelligent coolingsubsystem.6.1 Intelligent Co

Each of the three fan units cools an overlapped area in the hub covering 8 slots.The slots covered by each fan unit are:•Fan 1 - slots 1-8•Fan 2 - slo

If a fan unit stops or the temperature in any of the three cooling zones risesabove 60 C, the Controller module may, depending on a user configurablep

power class and slot position within the affected cooling zone as shown ifFigure 63 on page 94.Figure 63. 8260 Cooling Zones and Power Classes•Modules

Figure 64. Flow Chart for an Overheat ConditionChapter 6. 8260 Intelligent Cooling Subsystem 95

96 8260 Multiprotocol Intelligent Switching Hub

Chapter 7. 8260 Ethernet ModulesThis chapter will describe the Ethernet modules for the 8260 multiprotocolintelligent switching hub. Each module will

52. Installing 8260 Modules in an 8260 Not Managed by DMM ... 8353. Installing 8250 Modules in an 8260 Managed by DMM... 8454. Installing

to 16 times consecutively, after which the station reports a transmission error tothe higher layer protocol. The probability of a collision occurring

7.2 8260 Ethernet 24-Port 10Base-T ModuleThe 8260 Ethernet 24-Port 10Base-T Module is a 24-port IEEE 802.3 repeatermodule that complies with the 10Bas

types of modules. For example, you can set a 10Base-T port on an 8260Ethernet 24-Port 10Base-T Module to be a redundant port for 1 10Base-FB onthe 826

Figure 65. Front View of 24-Port 10Base-T ModuleFigure 65 shows the front view of the 8260 Ethernet 24-Port 10Base-T Module.As can be seen, the 8260 E

Figure 66 shows the side view of the 8260 Ethernet 24-Port 10Base-T Module. Ascan be seen, in addition to the 8 isolated segments and the mounting for

Figure 67. 24-Port 10Base-T DIP SwitchesThe DIP switches let you perform the following:•Use DIP switch positions 1 through 4 to assign all the ports o

4.2.4.4, “ Configuring DMM Device” on page 50. By default, DIP switch 5 isset to NVRAM.7.3 10Base-T Module UsageFigure 68 provides an example of the u

Each port on the 8260 Ethernet 24-Port 10Base-T Module can beenabled/disabled independently from the other ports. You can use thefollowing management

7.5 8260 Ethernet 20/40-Port 10Base-T ModuleThe 8260 Ethernet 20-Port 10Base-T Module, a single-slot 20-port, and the 8260Ethernet 40-Port 10Base-T Mo

•Support for port redundancyYou can set up redundancy between two links on the same module or twodifferent modules. Note that port redundancy is suppo

106. Trunk Wrapping in Active Per-Port Switching Module ... 169107. Trunk Wrapping in Active Per-Port Switching Module... 169108. Front

Figure 69. Front View of 20/40-Port 10Base-T ModulesTable 19 describes the meaning of these LEDs:Table 19 (Page 1 of 2). 20/40-Port 10Base-T Module LE

Figure 70 shows the side view of the 20/40-port 10Base-T modules. As can beseen, in addition to the 8 isolated segments and the mounting for two E-MAC

Figure 71. 20/40-Port 10Base-T DIP SwitchesThe DIP switches let you perform the following:•Use DIP switch positions 1 through 4 to assign all the port

setting) will be sent to the management module. The actions taken by themanagement module, upon receipt of this information are described in4.2.4.4, “

allows the port to receive signals compliant with 10Base-T standard. Lowsquelch level allows the port to receive weaker signals, enabling you to havel

7.7 8260 Ethernet 10-Port 10Base-FB ModuleThe 8260 Ethernet 10-Port 10Base-FB Module is a 10-port module that complieswith the 10Base-FB standard and

information about the Ethernet security card, please refer to 7.11, “8260Ethernet Security Daughter Card” on page 121.•Support for port redundancyYou

Figure 72. Front View of 10-Port 10Base-FB ModuleFigure 72 shows the front view of the 8260 Ethernet 10-Port 10Base-FB Module.As can be seen, the 8260

Figure 73 shows the side view of the 8260 Ethernet 10-Port 10Base-FB Module.As can be seen, in addition to the 4 isolated segments and the mounting fo

Figure 74. 10-Port 10Base-FB DIP SwitchesThe DIP switches let you perform the following:•Use DIP switch positions 1 through 4 to assign all the ports

161. LMS IP Panel ... 279162. LMS IP Port Address Table Panel... 280163. LMS IP System Parameters Pa

By default, the module is shipped from the factory with the DIP switches setfor Ethernet_1.•Use DIP switch position 5 to choose if the module is going

Note Using DIP switches on the 8260 Ethernet 10-Port 10Base-FB Module, it isonly possible to assign all the ports to the same network. This networkca

This command may be used to allow you to monitor the status of the crucialports on your network while the alerts from the other ports are disabled.•Se

7.11 8260 Ethernet Security Daughter CardThe 8260 Ethernet Security Card (E-SEC) is a daughter card that allows you toprovide security on any Ethernet

ports may have one of these two features enabled and finally the last group ofports which may have no security at all.Details of configuring security

station attached to that port. The transmission of the jammed packet will last thesame length of time as the original data packet. Stations that recei

The entire process of eavesdropping protection takes 32 bit-times from the timethe E-SEC card receives the destination address field in the packet.7.1

•Enable auto-learning for your Ethernet segment using the followingexample:8260A> set security network ethernet_3 auto-learning enable•Although the

wish the station shown in Figure 78 for this port to be able to access ournetwork. The following command was used to delete this entry:8260A> set s

7. The following actions can be performed by the E-SEC card in case of intruderdetection:a. Report intrusions by logging information about the intrus

Tables 1. Components of the 8250 Adapter Kit for 8260 . . . . . . . . . . . . . . . . 6 2. Ethernet Pins on the 8260 Backplane . . . . . . . . . .

and port jamming is enabled. You can use the following example to enablethe failsafe feature for each port:8260A> set security port 2.15 failsafe e

Chapter 8. 8260 Token-Ring SupportThe 8260 token-ring support has been enhanced, compared to the 8250, toprovide the following features:•Active re-tim

8.1.2 Ring AdministrationThe token-passing ring protocol provides relatively greater control andmanagement at the medium access control (MAC) level th

ring purge process may be triggered after detecting the loss of a token,frame, or errors caused by adapter-insertion or adapter-removal operations.To

8.1.4 Differential Manchester CodingThe 802.5 standard specifies that Differential Manchester coding is used fortransmitting data on the ring. With th

The other important point about the Differential Manchester coding is that it usesa higher baud rate (the number of state changes on the transmission

the signal passes from one station to another and ultimately can result in loss orcorruption of data. This is a major reason for the limit on the maxi

Figure 81. Self-Shorting Relays on the ShuntBusOnce a module is inserted into a slot in the 8260, the ShuntBus connector on themodule breaks the shunt

Mbps operation is different for the two bit-rates. For 4 Mbps operation, theencoding is straightforward. One of the data-signal shunt pairs (Data_A) c

Figure 83. 8260 Backplane Signalling for 16 Mbps OperationNote that the 8260 backplane interface is completely digital, whereas the signalssent on the

xiv 8260 Multiprotocol Intelligent Switching Hub

signal as the signal is clocked at 8 MHz on both the backplane and thetransmission media (lobe cables and inter-wiring closet cables).8.3 Dual Phase L

Figure 84. Components of Dual Phase Lock LoopThe reduction in the jitter would allow you to have longer lobe distances andhigher number of station per

Figure 85. DPLL Implementation on Active Ports Note Since the jitter is removed from the signal before entering the backplane, thesignal received from

8.4 Jitter Attenuator Daughter Card (JADC)The JADC can be mounted on any 8260 token-ring module and contains a DPLLfunction. It must be installed on a

wideband/wideband configuration when the port is in trunk mode. This is doneto ensure that when the ring is reconfigured outside the module, a signal

Note Please note that it is incorrect to say that we support 250 stations at 4Mbps. That is not necessarily true since there are some adapters on the

backplane rings on the ShuntBus. This enables you to form multiple rings on asingle module using this switch fabric. This is shown in Figure 87 on pag

Note With the 18-port active per-port switching module the lobe ports can bedistributed concurrently across a total of 11 segments which can be a mix

5. Participation in neighbor notificationBy participating in the neighbor notification, the station learns the address ofits Nearest Active Upstream

SET PORT {slot.port} STATIC_SWITCH {enable|disable}If you try to switch a port with enabled static switch from one segment toanother, you will get the

Special NoticesThis publication is intended to help both IBM Customers and IBM SystemEngineers to install and configure the IBM 8260 Multiprotocol Int

Figure 90. Port Switching with Source Routing Bridges8.7 Signal Flow on the 8260 Token-Ring ModulesOn the module switching modules (active or passive)

8.8 Speed DetectionSpeed detection on the 8260 token-ring media modules is achieved in one of twoways depending on the module type.8.8.1 Speed Detecti

•If the ″A″ and ″C″ bits are not set to B′1′, the port which just inserted into thering is assumed to be operating at the wrong speed. The Recovery AS

8.9 Beacon Recovery8.9.1 IntroductionWhen a station detects a failure of token-claiming following a hard error, ittransmits Beacon MAC frames with an

To ensure that TRMM has an accurate ring map, you must issue thefollowing command for each port that has a MAC-less station (such astoken-ring tracing

2. Isolate any new modules that have logical ports on the ring (logical is a portwhich cannot be disabled such as TRMM or bridge). 3. If the source o

TRMM V3.0 allows you to enable/disable the beacon recovery function using thefollowing command:SET DEVICE BEACON_RECOVERY {enable|disable}Note that th

8.9.3 Beacon Recovery in the 8260Beacon recovery in the 8260 has been improved by distributing the beaconrecovery process to each of the 8260 token-ri

Figure 94. Recovery ASIC in Per-Port Switching ModuleYou can find out the MAC address of the Recovery ASIC on each module byusing the following DMM co

 8260> show module 6.1 verboseSlot Module Version Network General Information----- --------------- ------- ------------- -------------------06.01

The following terms in this publication, are trademarks of other companies:Windows is a trademark of Microsoft Corporation.PC Direct is a trademark of

Ring monitors are associated with each port and can be switched from upstreamto downstream of that port. When the ring monitor detects a Beacon MAC fr

detect this and will issue Beacon MAC frames. These Beacon MAC frames willbe repeated by each station (station ″D″ in this case) until they arrive in

Monitor is attached. Once the Recovery ASIC is inserted into that ring, the DRAwill be placed downstream of the last port of the module on the beaconi

Now, DRA in ″TR Module 2″ starts tracking the stations that are involved in theneighbor notification process. The tracking will stop when the DRA in ″

device on that port and therefore, the Recovery ASIC will be able to build theaddress-to-port map by listening to neighbor notification process as des

 8260> show ring_map token_ring logical token_ring_1Token Ring Logical Map for Network TOKEN_RING_1MAC Address Slot Port----------------- ----- -

 8260> show ring_map token_ring logical token_ring_1Token Ring Logical Map for Network TOKEN_RING_1MAC Address Slot Port----------------- ----- -

2. An AMP/SMP MAC frame with the A/C bit set B′0′ is seen. This indicatesthat there is only one station attached to this port and the address of that

 8260> show ring_map token_ring logical token_ring_2Token Ring Logical Map for Network TOKEN_RING_2MAC Address Slot Port----------------- ----- -

As illustrated in Figure 104 on page 167, the dual-ring topology consists of twocounter-rotating rings that provide interconnection for both dual-ring

PrefaceThis document is intended to assist customers and IBM system engineers toimplement local area networks based on the IBM 8260 Multiprotocol Inte

Figure 105. Wrapback in Dual-Ring Topology8.12.1 Trunk Wrapping on the Active Per-Port Switching ModulesThe 18-port active per-port switching module a

Figure 106. Trunk Wrapping in Active Per-Port Switching Module8.12.2 Trunk Wrapping on the Active Module-Switching ModulesWhen, during the beacon reco

Note On the 18-port active module switching module, the URA cannot be switchedto the backup path. This means that the operation of this module is not

Because these modules do not have switching capabilities, the URA cannot beswitched onto the faulty segment. In order to execute the unwrapping tests,

172 8260 Multiprotocol Intelligent Switching Hub

Chapter 9. 8260 Token-Ring ModulesThis chapter will describe the token-ring modules for the 8260 multiprotocolintelligent switching hub. Each module w

Once the ring speed for the network is set, each port, trunk or moduleassigned to that network will assume the speed of the network.•Enable support fo

•When ports 17 and 18 are configured as RI/RO ports, they are fully compliantwith the IEEE 802.5C (dual-ring recovery) standard.•Support for installat

Figure 109 shows the side view of the 18-port active per-port switching module.As can be seen, in addition to the 11 isolated segments and the mountin

The DIP switches let you perform the following:•Use DIP switch positions 1 through 4 to assign all the ports on the module toone of the backplane segm

This appendix provides information about the power requirements of the8250 modules.Related PublicationsThe publications listed in this section are con

Active Per-Port Switching ModuleFigure 110. Onboard Lobe/Trunk Jumpers on 18-PortNote that setting the jumpers to the left selects RI/RO and setting t

Use the following command to assign each port on the module to one of thebackplane segments on the ShuntBus or isolated segments on the module:SET POR

required. If a trunk fault appears which disrupts phantom drive, the trunkwill wrap immediately. The module never goes to beacon recoverybecause the p

passive module refer to 8.9.4, “Beacon Recovery on the Module SwitchingModules” on page 158.•Support for address-to-port mapping using the Recovery AS

Figure 111. Front View of 20-Port Passive ModuleFigure 111 shows the front view of the 20-port passive module. As can be seen,this module provides LED

Figure 112 shows the side view of the 20-port passive module. As can be seen,in addition to the 11 isolated segments and the mounting for one T-MAC, t

The number of times that a phantom transition is allowed to cause a port tounwrap is determined by the bcn_threshold parameter which can be set foreac

9.6 8260 Dual Fiber Repeater ModuleThis is a single slot module that supports 10 active lobe ports and two sets offully repeated fiber RI/RO trunk por

Figure 113. Front View of Dual Fiber Repeater ModuleFigure 113 shows the front view of the dual fiber repeater module. As can beseen, this module prov

Figure 114 shows the side view of the dual fiber repeater module. As can beseen, in addition to the 11 isolated segments and the mounting for one T-MA

AcknowledgmentsThe advisor for this project was:Mohammad ShabaniInternational Technical Support Organization, Raleigh CenterThe authors of this docume

9.6.1 Configuring the Dual Fiber Repeater ModuleTo configure this module you must do the following: 1. Set beacon threshold for the module.When a beac

Trunk ports can be enabled/disabled using the following command:SET TRUNK {slot} RING_IN.n MODE {enable|disable} orSET TRUNK {slot} RING_OUT.n MODE {e

190 8260 Multiprotocol Intelligent Switching Hub

Chapter 10. 8260 RMON SupportThis chapter is intended to provide an understanding of the Remote NetworkMonitoring (RMON) concepts and to describe what

generation. Information provided by RMON can be used for identifying sourcesof network problems, for fine-tuning network performance, and planning for

Figure 116. An Example of RMON Implementation10.1.2 RMON ManagerThe network management station, also known as the RMON manager, works inconjunction wi

baseline network characteristics, quickly spotting potential trouble spots andresolving them before major crises occur.10.2 RMON GoalsTo ensure that R

10.2.5 Multiple ManagersThe RMON framework permits the RMON agents to be managed by multiplenetwork management stations concurrently. This is useful f

Table 32. MIB Structure for RFC 1271 - RMON MIB for EthernetGroup DescriptionStatistics The Statistics group provides an overview of the current segme

memory and disk space to the RMON application. Ifyou are running RMON subset on a bridge or router,you might want to consider offloading the task to a

xx 8260 Multiprotocol Intelligent Switching Hub

Fragments Fragments are similar to CRC Align Error packets withthe exception that each fragmented packet is less than64 octets in length. This can ind

The History Control table stores configuration entries containing the interfaceinformation, polling period, number of buckets requested, and number of

10.4.1.4 Host GroupThe Host group creates and maintains a host table for the segment monitored.The Host MIB is very useful as it contains information

The Destination-Source table captures similar information but indexes it from areceiver-oriented perspective.10.4.1.7 Filter GroupThe Filter group all

Table 33. MIB Structure for RFC 1513 - Token-Ring Extensions to the RMON MIBGroup DescriptionToken-ringStatisticsToken-ringMAC-layerStatisticsThis gro

Here is a list of MAC statistics available under this group and their respectivedescriptions:Drop Event The number of events in which MAC packets were

•Recovery mode set•Streaming signal (not Claim Token MAC frame)•Streaming signal, Claim Token MAC frame orintermediate detection of hard errorBeacon T

total number of burst errors reported in the Soft ErrorReport MAC frame.ACErrors This error is flagged when a frame is copied by anadapter to which it

Frequency Error Occurs when a ring station detects a frequency error.A new station inserting into the ring can causedownstream stations to be ″off fre

or hub, you might want to consider offloading the taskto an external monitoring device.Octets The total number of octets of data in good framesreceive

Chapter 1. An Overview of the IBM 8260 HubThis chapter is an introduction to the IBM 8260 Multiprotocol Intelligent SwitchingHub. It is intended to pr

10.5.1.2 History GroupThe token-ring History groups capture historical information about networkutilization and error statistics for the token-ring ne

•Line Errors•Internal Errors•Burst Errors•Address Copied Errors•Abort Errors•Lost Frame Errors•Congestion Errors•Frame Copied Errors•Frequency Errors•

•Number of active stations on the ring•Current status of the ring with the following possible ring states:− Normal operation− Ring Purge state− Claim

10.5.1.5 Ring Station Configuration GroupThe token-ring Ring Station Config group provides the capability to activelymanage and query the configuratio

source routing bridges. Transparent bridges donot use this field.One-Hop Frames Contains the total number of frames receivedwhose route had one hop, w

following command to display the status of the DMM network interfaces viaT-MACs and E-MACs installed in your hub:8260A> show interfaceFigure 117 sh

•Host•History•Alarm•Event•Matrix•Statistics•TopN-hosts10.6.2 Monitoring Functions Supported by T-MACT-MAC V2.0 provides the following functions:•Suppo

Note The statistics that are collected using the DMM commands described in thenext sections are NOT all RMON statistics. The non-RMON statistics arei

 8260A>8260A> show counter interface ethernet_1Interface Statistics for ETHERNET_1------------------------------------------------------------

 8260A>8260A> show counter repeater ethernet_1 module 2Repeater Statistics for Module 2 on ETHERNET_1-----------------------------------------

•One power supply•One power supply bay cover•One AC power cord•Three fan units•One cable tray•One rack mount kit•One rubber feet kit•Six blank dual-sl

 8260A>8260A> show counter rmon hosts ethernet_1 allRMON Hosts Table for Host Address 00-00-c9-01-01-0b on Port 2.4---------------------------

•Statistics•TopN-hostsTo be able to collect and view the above information, you must perform thefollowing steps: 1. Use the ″SHOW INTERFACE″ command t

SET RMON ALARM ETHERNET {stat_type}.{interface} RISING {threshold}FALLING {threshold} {event} {time} {trigger} {alarm type}The following is a summary

The format of the command to display the contents of the control tablefor the statistics group is slightly different. In this case, you must use thefo

 8260A> show rmon host data 1 all by_creation_orderRMON Host display for Interface 3 :Creation Order : 1Host Address : 10-00-5A-D4-B0-8CInput Pac

 8260A>8260A> show counter token_ring token_ring_7Token Ring Statistics for TOKEN_RING_7------------------------------------------------------

 8260A> show counter interface token_ring_7Interface Statistics for TOKEN_RING_7-----------------------------------------------------------------

 8260A> show counter rmon hosts token_ring_7 allRMON Hosts Table for Host Address 40-00-00-03-33-38 on Port 6.9----------------------------------

 8260A> show counter rmon ring_station token_ring_7 ringRMON Token Ring Station Control Statistics for Network TOKEN_RING_7----------------------

 8260A>8260A> show counter rmon ring_station token_ring_7 allRMON Token Ring Station Statistics for Network TOKEN_RING_7----------------------

1.2 8260 Hardware DescriptionThere are three models of the 8260:•8260-017•8260-010•8260-17A1.2.1 IBM 8260 Model 017The 8260 Model 017 is a 17-slot mod

SHOW COUNTER RMON TR_MAC_LAYER {network}An example of the output displayed for this command is shown inFigure 129. 8260A>8260A> show counter r

 8260A>8260A> show counter rmon tr_promiscuous token_ring_7RMON Token Ring Promiscuous Statistics for Network TOKEN_RING_7--------------------

 8260A> show counter rmon tr_source_routing token_ring_7RMON Token Ring Source Routing Statistics for Network TOKEN_RING_7-----------------------

3. Enable the collection of RMON information by T-MAC, using the followingcommand:SET MODULE {slot.subslot} RMON_GROUP enableThis command enables the

 8260A>8260A> show module 8.2 verboseSlot Module Version Network General Information----- --------------- ------- ------------- --------------

parameters, and remove stations on its ring. It also collects and forwardsconfiguration reports generated by stations on its ring to the LAN manager.T

 8260A> show tr_surrogate 8.2 surr_statusSurrogate Status Data for Network TOKEN_RING_7----------------------------------------------------------

 8260A> show tr_surrogate 8.2 rem_statusRing Error Monitor Status Data for Network TOKEN_RING_7--------------------------------------------------

An example of the output from this command is shown in Figure 136 onpage 236. 8260A> show tr_surrogate 8.2 crs_station allConfiguration Report Se

SHOW TR_SURROGATE {slot.subslot} REM_SOFT_ERROR•Threshold exceeded conditionsSHOW TR_SURROGATE {slot.subslot} REM_THRESHOLD_EXCD10.8 DOT5_Group Suppor

Figure 1. IBM 8260 Model 0171.2.1.2 Payload AreaThe payload area provides the housing for 17 media and management modules.In addition to the 8260 modu

The definitions for the terminology used within the above table are:•Analyzes = interprets the data that is collected•Provides = sends solicited infor

Chapter 11. 8260 Multiprotocol Interconnect ModuleThis chapter provides an overview of the routing and bridging functions providedby the Multiprotocol

Note: DECnet Phase IV routing is not supported on token-ring ports.The Multiprotocol Interconnect module uses a 32-bit RISC processor (80960FA)for hig

Figure 137 on page 241 shows the front view of the 1-slot and 2-slotMultiprotocol Interconnect modules.Figure 137. Front View of the Multiprotocol Int

Table 36. Interconnect Module LED DescriptionLED Name Color State DescriptionModule Status Green On Power is on, software functioningOff Power is off

It is expected that the customer will buy the Multiprotocol Interconnect modulepre-configured with I/O cards, including proper programming for EEPROM,

Do you want to enter this into module x.y′ s EEPROM (Y/N): 8. EnterYin response to the above prompt. 9. Remove the module from the 8260 and install th

11.4 Routing FunctionsThe Multiprotocol Interconnect module supports the following routing protocols:•IP•IPX•DECnet Phase IV11.4.1 IP Routing SupportW

•Supports authentication between routers.•Importation of RIP routes and static routes to an OSPF domain may beenabled or disabled.•Filters may be conf

command to assign ports 1 thru 6 to the desired Ethernet segments on theShuntBus or Enhanced TriChannel.SET PORT {slot.port} NETWORK {ethernet_n|isola

•Right Boundary Adapter: This adapter is a full length adapter and occupiesone slot. Installation of this adapter results in 16 slots remaining availa

•Configuration MenuThis option allows you to alter configuration parameters and monitorstatistics about the Multiprotocol Interconnect module.•Status

 * Help Screen Module: BladeRunnerTime: 13:07 5 Jan 95control-C: Cancel input, cancel a popup menu, or exit a screencontrol-J: Go to the screen jump

 Config * Jump Table - Config screens Module: BladeRunnerTime: 14:25 5 Jan 95System Download Trap Dest. Table Physical Port ListPhy. Port Protocol P

•Dot5 Group•Frame Relay Group•IP Forward Group•OSPF Group•PPPF Group•Retix Private MIB extensionsThe following SNMP traps will be sent by the SNMP age

 Config * Configuration Menu Module: BladeRunnerTime: 14:24 5 Jan 95System MenuPorts MenuBridge MenuProtocols MenuExitSystem parameters Menu Figur

−Warmstart: All the configuration settings are read from the FLASHmemory, resulting in the restoration of the last saved configurationinformation. Not

To add an entry to this table, you must select Add Entry from the Menu Baroptions of the panel shown in Figure 143 on page 254. You will then beprompt

Note If you select Start BOOTP Download and do not specify the TFTP serverIP address and TFTP filename in the above panel, the MultiprotocolInterconn

 Config * Ports Menu Module: BladeRunnerTime: 15:30 5 JanPhysical Port ListPhysical Port Protocol ParametersPhysical Port Interface ParametersLogica

applicable to the LAN ports and will not be discussed any further in thisbook.11.8.2.1 Configuring Physical Port ParametersThe Physical Port List pane

Table 1. Components of the 8250 Adapter Kit for 8260Adapter kit Component 4-slot Feature 9-slot Feature 16-slotFeatureLeft Boundary Adapter 1 1 1Right

 Config * Physical Port List Module: BladeRunnerSystem Page 2 Time: 15:49 5 Jan 95Port ID Name Connection Card Type Protocol7 PHYSICAL PORT FRONT PA

 Config * Physical Port Protocol Parameters Module: BladeRunnerPhy. Port: 7 PHYSICAL PORT Time: 15:56 5 Jan 95Link Protocol: tokenRingCommands: noOp

11.8.2.3 Configuring Logical Port ParametersThis panel allows you to configure parameters for Ethernet, token-ring and WANlogical ports. An example of

•EncapsulationThis is a read-only parameter and shows the type of encapsulation used onthe physical port to which this logical port is attached. In th

The following sections describe the procedures used to configure theMultiprotocol Interconnect module to perform one of the following:•Transparent bri

−Time-To-Delete (in seconds)For information on this parameter, refer to 11.8.5, “Filtering forBridging Functions” on page 270.−Time-To-Forget (in seco

If security mode is disabled, and the destination address is known, thepacket is forwarded on the appropriate port. If the address is not known,the pa

 Config * STP System Parameters Module: BladeRunnerSystem Time: 17:06 5 Jan 95STP Facility: Enabled STP Version: draftSTP Domain Address: 0180C20000

If two bridges have the same bridge priority, the one with the lowestMAC address has higher priority.•Bridge Max Age TimeSpecifies the max value for t

•Path Cost ModeThis parameter is used by the spanning tree protocol to determine howthe value of the path cost is configured. The following values can

1.2.2 The Intelligent Cooling SubsystemThe cooling subsystem consists of 3 fans, each of which cools a specific area ofthe hub. Each of the fans has a

 Config * Source Routing Port ParametersModule: BladeRunnerLog. Port: 8 LOGICAL PORT Time: 17:33 5 Jan 95Security Mode: Disabled Source Address Filt

5. Configure theSTP Port Parametersfor each token-ring port performingsource-route transparent bridging, as described in 11.8.4.1, “Configuring forTr

This parameter allows you to enable/disable SNAP conversion betweentoken-ring and Ethernet frames. When enabled, the Ethernet network istreated as an

 Config * Filtering Database Module: BladeRunnerSystem Page 1 Time: 14:27 6 Jan 95 MAC Address Disposition Scope MAC Address Disposition Scope#0000B

−Permanent($)These are manually entered addresses which are stored in the FLASHmemory.−Static (*)These are entries that have been entered manually. Th

To do this, each address in the database has an age assigned to it. When theaddress is learned, the age is set to zero. At subsequent time intervals t

11.8.6 Destination Address FilteringDestination address filtering allows you to use the contents of the filteringdatabase to forward or discard frames

Filter Test Table. Note that there is only one of these tables in eachMultiprotocol Interconnect module and it contains all the test that are to beper

This field defines the bits in the received frame, starting at the specifiedoffset, that should be tested against the contents of the value field. Onl

 Config * Custom Filter Statement Table Module: BladeRunnerLog. Port: 1 LOGICAL PORT Page 1 Time: 14:10 9 Jan 95Statement ID Test Name Action on Suc

International Technical Support Organization8260 Multiprotocol Intelligent Switching HubMay 1995GG24-4370-00IBML

•Model 010 is shorter than the Model 017 (498 mm versus 673 mm), but hasthe same depth and width.•Power supplies in the Model 010 are housed on the le

− Fwd Prio #: Forward the frame at the specified priority (#). # can be0 to 7. Priority 0 is the highest priority.− Stmt #: Specifies another statemen

The following sections describe the procedures used to configure theMultiprotocol Interconnect module to perform one of the following:•IP routing•IPX

 Config * IP Port Address Table Module: BladeRunnerSystem Page 1 Time: 15:35 9 Jan 95 Port IP Address IP Subnet Mask 1 9.67.46.11 255.255.255.240 1

An example of the IP System Parameters panel is shown in Figure 163 onpage 281. Config * IP System Parameters Module: BladeRunnerSystem Time: 15:43

This parameter specifies the length of time that the module may wait forall the fragments of a fragmented IP message to be received forreassembly. If

 Config * IP Port Parameters Module: BladeRunnerLog. Port: 1 LOGICAL PORT Time: 15:55 9 Jan 95IP Port Routing: Enabled Disposition: discardRIP: Enab

that the Multiprotocol Interconnect module recognizes both types ofbroadcasts on the received frames regardless of the setting of thisparameter.•Forwa

•Next HopThis is the IP address of the node that is the next stop for a packet enroute to its destination address. The next hop must be directlyconnec

 Config * IP Net To Media Table Module: BladeRunnerSystem Page 1 Time: 10:50 11 Jan 95Port Network Address Media Address Type 1 9.67.46.13 400000000

Also a BOOTP client can request the code image file to be downloaded fromthe TFTP server.To configure the Multiprotocol Interconnect module as a Booth

1.3.1.2 8260 Ethernet 20-Port 10Base-T ModuleThe 8260 Ethernet 20-port 10Base-T module is single-slot module which provides20 RJ-45 connectors for sup

11.8.8.1 Configuring for OSPFTo configure the Multiprotocol Interconnect module to use OSPF, you must selectOSPF from the Protocols Menu. The resultin

 Config * OSPF System Parameters Module: BladeRunnerSystem Time: 17:39 11 Jan 95Area Border Router: falseRouter ID: 9.67.46.44 TOS Support: trueAdmi

This parameter determines if the RIP filter table will be used forimporting routes found by RIP. RIP filter table is discussed later in thissection.•I

can only be modified. There will be one entry in this table for each IPaddress assigned to the Multiprotocol Interconnect module′s ports.To modify the

This parameter specifies the number of seconds between the HelloPackets that the router sends on the interface. This interval must be thesame for all

 Config * OSPF Area Table Module: BladeRunnerSystem Page 1 Time: 17:41 11 Jan 95Area ID AuthType Import AS SPF Brdr AS Brdr Area ChksumExtern LSA Ru

This parameter is read-only and contains 32-bit unsigned sum of theLink-state-advertisement′s link-state checksum contained in this area′slink-state d

from the OSPF Menu. The resulting panel is shown in Figure 173 onpage 295. Config * OSPF Address Range Table Module: BladeRunnerSystem Page 1 Time:

 Config * OSPF Interface Metric Table Module: BladeRunnerSystem Page 1 Time: 17:44 11 Jan 95IP Address Port TOS Metric9.67.46.17 0 0 109.67.46.44 0

 Config * OSPF Virtual Interface Table Module: BladeRunnerSystem Page 1 Time: 17:44 11 Jan 95Area ID Neighbor TransDelay RetransInt HelloInt RtrDead

1.3.2.2 8260 TR 18 Port Active Module Switching ModuleThe 8260 TR 18 Port Active Module Switching module is a single-slot modulewhich provides attachm

8. Define the other OSPF routers which areneighborsto the MultiprotocolInterconnect module. To so so, select OSPF Neighbors from the OSPF Menupanel.

This field is read-only and shows the current length of the retransmissionqueue. 9. You may define the filters for importing RIP discovered routes by

 Config * OSPF Rip Convert Table Module: BladeRunnerSystem Page 1 Time: 17:46 11 Jan 95IP Address IP Mask Hop Count Metric9.67.46.0 255.255.255.240

 Config * OSPF Rip Default Convert TablModule: BladeRunnerSystem Page 1 Time: 17:47 11 Jan 95Hop Count Metric11022033044055066077088099010 100Modify

 Config * OSPF Static Filter Table Module: BladeRunnerSystem Page 1 Time: 17:47 11 Jan 95IP Address IP Mask TOS ActionAdd Entry Prev Page Next Page

 Config * OSPF Static Convert Table Module: BladeRunnerSystem Page 1 Time: 17:48 11 Jan 95IP Address IP Mask TOS Hop MetricModify Entry Prev Page Ne

 Config * OSPF Static Default Convert TablModule: BladeRunnerSystem Page 1 Time: 17:49 11 Jan 95TOS Hop Count Metric01 1002 2003 3004 4005 5006 6007

 Config * IP Security Table Module: BladeRunnerList: 1 Page 1 Time: 12:02 18 Jan 95ID Source Source Destination Destination Action ProtAddress Mask

•Source AddressThis is the source address of the IP datagram against which the sourceaddress of the IP datagram currently being processed is compared.

 Config * IP Security Access List Module: BladeRunnerPage 1 Time: 12:07 18 Jan 95List Transmit Action on Receive Action on ICMP No. Check No Match (

1.3.3.2 8260 Fault-Tolerant Controller moduleThe 8260 Fault-Tolerant Controller Module synchronizes the operations of allinstalled media and managemen

•ICMP GenerationThis field specifies whether an ICMP Destination Unreachable messageis forwarded to the source address on any IP datagram that is disc

4. Configure the system-wide IPX parameters by selectingIPX SystemParameters from the IPX Menu. An example of the resulting panel is shownin Figure 1

 Config * IPX Port Parameters Module: BladeRunnerLog. Port: 1 LOGICAL PORT Time: 11:00 13 Jan 95IPX Port Routing: Enabled Host Number: 08008F4001A0D

•Interface DelayThis is the estimated time taken for an IPX packet containing 576 bytes ofdata to traverse the hop between the interface and the assoc

Allows you to display information about the physical ports currently installedon your module.•Physical Port Protocol StatisticsDisplays different stat

Displays information about various link state advertisements sent andreceived by the Multiprotocol Interconnect module.•OSPF Link State Database Table

314 8260 Multiprotocol Intelligent Switching Hub

Appendix A. Power Requirements for 8250/8260 ModulesA.1 Power Requirements for 8250 Ethernet ModulesTable 41. Power Requirements for 8250 Ethernet Mod

A.2 Power Requirements for 8250 Token-Ring ModulesTable 42. Power Requirements for 8250 Token-Ring ModulesModule Feature Code Type Description #ofSlot

A.4 Power Requirements for 8250 Internetworking ModulesTable 44. Power Requirements for 8250 FDDI ModulesModule Feature Code Type Description #ofSlots

12 8260 Multiprotocol Intelligent Switching Hub

318 8260 Multiprotocol Intelligent Switching Hub

IndexNumerics18-Port Active Module Switching Module 180 Configuration 18018-Port Active Per-Port Switching Module 174 address-to-port-mapping 174 auto

Address-to-Port-Mapping(continued) support for MAC-less stations 163, 166AlarmGroup 199analog collision detection 19 Statistics Collection 19applying

Distributed Management Module (DMM) 10, 38DMM front panel 39DMM alert_filter 57DMM alerts 57authentication 57change 57hello 57DMM CommandDMM community

E-MAC Configuration (continued)Set Module Monitor_Contention 67Set Module Network 65, 68Show Module 65, 68E-MAC Monitoring Functions 213 RFC 1271 213

Ethernet 24-Port 10BASE-T Module (continued)Security Card support 99side view 102simultaneous segments 99Telco-type connector 99usage 104UTP backbone

Intelligent Power Management (continued)Vital Product Data (VPD) 29Intelligent Power Subsystem 6Intrusion protection 122 diasbling ports 121 jamming p

Multiprotocol Interconnect Module (continued)processor 240programming power requirements 243RIP implementation 245Router Engine Module (REM) 240routin

RMON Support (continued) using T-MAC 230SSecurity Address Table autolearning 121 entries 121 manual procedure 121 size 121Serial Control Interface (SC

Token-Ring Network Parameters (continued) ring speed 173 splitter support 174token-ring path 19token-ring pins on the Enhanced TriChannel 19 clock-in

Chapter 2. Backplane ArchitectureThe 8260 backplane consists of the following two buses:•Enhanced TriChannel•ShuntBusThese two buses are standard feat

ITSO Technical Bulletin Evaluation RED000International Technical Support Organization8260 Multiprotocol Intelligent Switching HubMay 1995Publication N

Cut or FoldAlong LineCut or FoldAlong LineITSO Technical Bulletin Evaluation RED000GG24-4370-00IBML Fold and Tape Please do not staple Fold and TapeN

IBML Printed in U.S.A.GG24-4370-00

Figure 3. Enhanced TriChannel BusThe number of pins available for user traffic on the ShuntBus is 72 pins. Thesepins are used to set up 2 dedicated Et

Figure 4. 8260 ShuntBus2.2 Ethernet Segments on the BackplaneThe 8260 allows you to set up a maximum of 6 Ethernet (ethernet_1 thru 6)segments on the

SET MODULE {slot.sublsot} NETWORK {ethernet_n} orSET PORT {slot.port} NETWORK {ethernet_n}Before assigning the port or module to a network you may use

segments ethernet_4, ethernet_5 and ethernet_6 on the Enhanced TriChanneland ethernet_7 and ethernet_8 on the ShuntBus.•Method 2:This method also uses

Take Note!Before using this information and the product it supports, be sure to read the general information under“Special Notices” on page xv.First E

The following is a brief description of the use of each of the pins in an Ethernetsegment on the 8260 backplanes:•Data enable signal:When this signal

This pin is used to provide a means of detecting collisions of the segmentsusing method 3. Analog collision detection is described in 2.2.2, “AnalogCo

•Data-in•Clock-in•Data-out•Clock-outWhen you assign an 8250 token-ring module to one of the token-ring networks onthe Enhanced TriChannel (tr_8250_1 t

the token-ring paths marked as ″available″ are the parts of the EnhancedTriChannel that are not currently used by any type of network.On the ShuntBus,

•Data B transmit•Clock receive•Data A receive•Data B receiveThe reasons for two signals for each of the transmit and receive signals is givenin 8.2, “

An example of the output from this command is shown in Figure 8 on page 23. 8260> show backplane_paths fddiPhysical Path Logical Network---------

•Any module can plug into any slot and all allocation of modules to networksor channels, regardless of whether they are TriChannel or Shunt Bus, isdon

Using Figure 10 on page 25 you can see that if, for example, fddi_1 network onthe ShuntBus is used, it eliminates token_ring_1, token_ring_2 and token

Figure 11. The Backplane Relationship between TriChannel and ShuntBus2.5.1 Management BusesIt was mentioned earlier that 42 of the 96 pins on the TriC

the MAC daughter card is accessed by the upper layer protocol stacks within theDMM (SNMP, Telnet) through the MLAN.The E-MAC can be installed on eithe

AbstractThis document describes the IBM 8260 Multiprotocol Intelligent Hub. It providesinformation about the 8260 architecture as well as how to insta

28 8260 Multiprotocol Intelligent Switching Hub

Chapter 3. 8260 Fault Tolerant Controller ModuleThe 8260 Fault Tolerant controller module is a critical component of the 8260.One active controller mo

3.1.1 The Controller Module Front PanelFigure 13. Front View of the Controller ModuleFigure 13 shows the front view of the controller module.Besides t

Hub Reset ButtonPressing this button, which is active on the active controller module only, resetsall installed modules including both active and stan

3.1.2 Controller Module Fault ToleranceThere are two dedicated slots, 18 and 19, provided for installing the controllermodule. Once installed, the con

3.1.4 8260 Fault Tolerant Controller Module Considerations•Up to two controller modules can be installed in the 8260 hub.•Neither controller module oc

34 8260 Multiprotocol Intelligent Switching Hub

Chapter 4. 8260 Distributed Management ArchitectureThis chapter will provide an in-depth look at the distributed managementarchitecture of the 8260. T

These daughter cards provide the following two functions:•Interface to the backplane segmentsTo be able to communicate with devices attached to any of

Figure 14. Management SchematicThe DMM (and daughter cards) provide management and control facilities in thefollowing areas:− ConfigurationThe DMM, ne

iv 8260 Multiprotocol Intelligent Switching Hub

In a Simple Network Management Protocol (SNMP) managedenvironment the DMM acts as the SNMP agent, responding to SNMPrequests and generating SNMP traps

4.2 The Distributed Management Module (DMM)The stand-alone DMM is a single-slot management module that has no facilityfor carrying daughter cards.The

Caution As always, great care should be taken when handling logic cards. The levelof static electricity that can build up in the human body can be th

The LCD display and display control button are used to:•Display the current operating state of the module•Determine the network assignment of ports an

The lower port is the auxiliary port and can be jumpered for RS-232 or RS-423operation. This port allows you to attach a terminal locally (or via mode

proper modem operation. See 4.2.4.3, “Configuring Terminal Settings for DMM”on page 47 for description of Set Terminal Hangup command.4.2.4 Configurin

Once the terminal has been configured press the Enter key. If the terminal hasbeen configured correctly the following message should be displayed:Tabl

 8260A> set login passwordEnter current session password for user ″system″:Enter new password:Verify - re-enter password:User password changed.82

 8260A> show loginLogin Table:Index Login Name Access Active Sessions----- --------------- -------------- ---------------1 system Super User 12 s

 Login:Login: systemPassword:A user with Super User or Administrator Access is already logged in.You are being logged in with User Access ...Welcome

ContentsAbstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiiSpecial Notices . . . . . . . . . . . . . . .

Note: The baud rate specified in this command must match the settingsof your terminal; otherwise, after issuing this command, thecommunication between

In this example, 9.67.46.3 is the address of the TCP/IP stationattached to the DMM port.To use SLIP, you must also perform the following tasks: 1. Ass

This option is very useful in identifying the DMM to which you are logged in.The default prompt is ″8260>″. It is recommended that you use the same

This command sets the clock to 3:45 p.m., Thursday, Jan 19th, 1995. Theclock is driven by an internal battery which is designed to last for 10 years.•

The factory default is for the DMM to run through a full set of diagnosticseach time it is rebooted. By using the following command you can makethe DM

You can configure DMM to force a mastership election when it isinserted into a hub. This option may be used to ensure that the DMMgets the opportunity

Note that for your DMM to receive traps from the other stations, yourDMM must be defined as a trap receiver in the community table of theother station

For example, to assign a default gateway of 9.67.46.238 to thetoken_ring_10 segment on the ShuntBus, you must use the followingcommand:8260A> set i

3. After configuring the IP address(es) for DMM, you must assign an E-MAC orT-MAC to any backplane through which the DMM is going to communicateusing

 8260A> show communityIndex Community Name IP Address Access----- -------------------- --------------- ------1 public ***.***.***.*** Read-Only2

4.4.1 Ethernet MAC Daughter Card (E-MAC) ... 644.4.2 Token-Ring MAC Daughter Card (T-MAC)... 664.5 Managing 8260 Using DMM

8260A> set alert port_up_down {enable|disable|filter}If you enable this option, all the port up and port down traps will be sent tothe local consol

Figure 31. EC-DMM Front Panel4.3.1 Installing the EC-DMMRemove the card from its shipping container and check it for damage.There are 2 jumper blocks

Figure 32. Jumpering for the EC-DMM DB-9 PortsHolding the DMM by the faceplate, slide it into the slot in the 8260. Like all 8260modules it can be hot

Ethernet media module in slot 2 will also turn on to indicate those ports havebeen assigned to Ethernet_1. If there were more media modules with ports

daughter card to an isolated segment on a media module, the MAC daughtercard must be installed on that media module. Note E-MACs installed on EC-DMM c

3. The stand-alone DMM is always considered to be on the first subslot of theslot in which the stand-alone DMM is installed. Note that a stand-aloneD

4.4.1 Ethernet MAC Daughter Card (E-MAC)E-MAC is a MAC daughter card which can be installed on an EC-DMM orEthernet media modules. Figure 36 shows how

2. Use the following command to set an appropriatemodefor the networkinterface on the E-MAC:8260A> set module 2.2 interface {enable|disable|standb

In this example, the E-MAC is installed in the first subslot of the EC-DMM whichis installed in slot 1 of the 8260. The output from this command is sh

2. If you are planning to use LAAs within your network, use the followingexample to assign a locally administered address to T-MAC:8260A> set modu

8.4 Jitter Attenuator Daughter Card (JADC) ... 1418.5 Passive Port Technology... 1428.6 Active Port Technolog

T-MACs attached to the same segment and want one of them to act as abackup for the active T-MAC. 6. Assign the T-MAC to the desired segment using the

 8260A> show module 6.2 verboseSlot Module Version Network General Information----- --------------- ------- ------------- -------------------06.0

4.5.1 Managing 8260 with DMMThe following is the summary of the capabilities of DMM when managing an 8260which is populated with both 8260 and 8250 mo

segment. If multiple 8250 networks need to be monitored simultaneouslythen each network requires its own 8250 xMM. 8. The two previous points mean tha

72 8260 Multiprotocol Intelligent Switching Hub

Chapter 5. 8260 Intelligent Power Management SubsystemThe 8260 provides extensive power management functions that allow you to takeadvantage of the mo

Figure 42. 8260 with 4 Power Supplies5.2 Power ClassPower class can be considered as a power priority which ranges from 1 to 10.10 is the highest prio

with slot 1 to 17. The Controller module will repeat this process for all otherpower classes in descending order of their priority until either all th

 8260> show power slot allPower Management Information----------------------------Slot Power Information:Slot Class Admin Status Operating Status

 Hub Information:Hub Type: 58G5801Backplane Information:Backplane Type Revision-------------- --------Load-Sharing Power Distribution Board 0Enhance