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42 Asynchronous Transfer Mode Interface Processor (AIP) Installation and Configuration

Configuring the AIP

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Use the show atm vc command to display statistics for all PVCs, as follows:

Router# show atm vc

Intfc. VCD VPI VCI Input Output AAL/Encaps Peak Avg. Burst

ATM0/0.1 1 1 1 305 0 AAL3/4-SMDS 0 0 0

ATM0/0 2 2 2 951 0 AAL5-SNAP 0 0 0

ATM0/0 3 3 3 0 0 AAL5-SNAP 0 0 0

ATM0/0 4 4 4 162 0 AAL5-MUX 0 0 0

ATM0/0 6 6 6 2722 0 AAL5-SNAP 0 0 0

ATM0/0 7 7 7 733 0 AAL5-SNAP 0 0 0

To display statistics for a given PVC, use the show atm vc n command, where n is the VCD, as
follows:

Router# show atm vc 4

ATM0/0: VCD: 4, VPI: 4, VCI: 4, etype:0xBAD, AAL5 - MUX, Flags: 0x34

PeakRate: 0, Average Rate: 0, Burst: 0 *32cells, Vcmode: 0xE200

InPkts: 164, OutPkts: 0, InFast: 0, OutFast: 0, Broadcasts: 0

The following sample shows the output from the show atm vc command when a vcd is specified,
AAL3/4 is enabled, an ATM Switched Multimegabit Data Service (SMDS) subinterface has been
defined, and a range of message identifier numbers (MIDs) has been assigned to the PVC:

Router# show atm vc 1

ATM0/0.1: VCD: 1, VPI: 0, VCI: 1, etype:0x1, AAL3/4 - SMDS, Flags: 0x35

PeakRate: 0, Average Rate: 0, Burst: 0 *32cells, VCmode: 0xE200

MID start: 1, MID end: 16

InPkts: 0, OutPkts: 0, InFast: 0, Broadcasts: 0

•

Use the show atm map command to display the PVC map, as follows:

Router# show atm map

Map list atm:

vines 3004B310:0001 maps to VC 4, broadcast

ip 131.108.168.110 maps to VC 1, broadcast

clns 47.0004.0001.0000.0c00.6e26.00 maps to VC 6, broadcast

appletalk 10.1 maps to VC 7, broadcast

decnet 10.1 maps to VC 2, broadcast

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Summary of Contents for CAB-ATM-DS3/E3

Page 1: ...uded are basic configuration steps and examples The following sections are included in this configuration note If You Need More Information page 2 ATM Terms and Acronyms page 3 Asynchronous Transfer Mode Overview page 4 What Is the AIP page 5 AIP Installation Prerequisites page 7 Interface Processor Replacement Procedures page 19 ATM Interface Cables page 23 Using LEDs to Check AIP Status page 30 ...

Page 2: ... modular command reference publications as appropriate for your configuration Configuration Fundamentals Configuration Guide Configuration Fundamentals Command Reference Security Configuration Guide Security Command Reference Wide Area Networking Configuration Guide Wide Area Networking Command Reference Network Protocols Configuration Guide Parts 1 2 and 3 Network Protocols Command Reference Part...

Page 3: ...m s UNI specification ILMI allows end users to retrieve a basic set of information such as status and configuration about virtual connections and addresses for a particular UNI ITU T International Telecommunications Union Telecommunication Standardization Sector formerly the Consultative Committee for International Telegraph and Telephone CCITT MIB Management Information Base MIC Media interface c...

Page 4: ...fier ATM virtual connection information A virtual path is a generic term for a bundle of virtual channels that have the same end point Asynchronous Transfer Mode Overview Asynchronous Transfer Mode ATM uses cell switching and multiplexing technology that combines the benefits of circuit switching constant transmission delay and guaranteed capacity with those of packet switching flexibility and eff...

Page 5: ...packet is duplicated and sent to each VC marked as a broadcast VC This method is known as pseudobroadcasting What Is the AIP The ATM interface processor AIP see Figure 1 provides a single ATM network interface for Cisco 7000 series and Cisco 7500 series routers Figure 1 ATM Interface Processor AIP The AIP provides a direct connection between the high speed Cisco Extended Bus CxBus and CyBus and ex...

Page 6: ...ATM network Refer to the section AIP Installation Prerequisites on page 7 for descriptions of ATM connectors The AIP provides an interface to ATM switching fabrics for transmitting and receiving data at rates of up to 155 Mbps bidirectionally the actual rate is determined by the PLIM The AIP supports PLIMs that connect to the following physical layers with product numbers included TAXI 4B 5B 100 M...

Page 7: ...ersion command to display the current system software version and use the show controller cbus command to display the microcode version of the system processor and each interface processor In the following example of the show version command the running system software is Release 10 0 Router show version GS Software GS7 Version 10 0 Copyright c 1986 1994 by cisco Systems Inc Compiled Thu 05 Feb 93...

Page 8: ... multimode transmissions as defined by SONET are listed in Table 1 If the distance between two connected stations is greater than these maximum distances significant signal loss can result making transmission unreliable Table 1 SONET Maximum Fiber Optic Transmission Distances Evaluating the Power Budget To design an efficient optical data link you need to evaluate the power budget The power budget...

Page 9: ...he fiber and being radiated into the fiber cladding A worst case estimate of power margin PM for multimode transmissions assumes minimum transmitter power PT maximum link loss LL and minimum receiver sensitivity PR The worst case analysis provides a margin of error although not all of the parts of an actual system will operate at the worst case levels For SONET versions of the AIP module the signa...

Page 10: ...e of a multimode power margin calculation based on the following variables Length of multimode link 3 kilometers km with a loss of 1 0 dB per km 4 connectors each with a loss of 0 5 dB 3 splices each with a loss of 0 5 dB Higher order loss HOL of 0 5 dB Clock recovery module CRM with a loss of 1 0 dB Estimate the power margin as follows PM 11 5 dB 3 km 1 0 dB km 4 0 5 dB 3 0 5 dB 0 5 dB HOL 1 dB C...

Page 11: ...verloading the receiver connecting short fiber links insert a 5 to 10 dB attenuator on the link between any single mode SONET transmitter and the receiver SONET Single Mode Power Budget Example The following example of a single mode power budget describes two buildings 11 kilometers apart with a loss of 05 dB km connected through a patch panel in an intervening building with a total of 12 connecto...

Page 12: ...licatie verschijnen kunt u het document Regulatory Compliance and Safety Information Informatie over naleving van veiligheids en andere voorschriften raadplegen dat bij dit toestel is ingesloten Varoitus Tämä varoitusmerkki merkitsee vaaraa Olet tilanteessa joka voi johtaa ruumiinvammaan Ennen kuin työskentelet minkään laitteiston parissa ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavan...

Page 13: ...Information Informação de Segurança e Disposições Reguladoras que acompanha este dispositivo Advertencia Este símbolo de aviso significa peligro Existe riesgo para su integridad física Antes de manipular cualquier equipo considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes Para ver una traducción de las advertencias ...

Page 14: ...lways use an ESD preventive wrist or ankle strap and ensure that it makes good skin contact connect the equipment end of the strap to a captive installation screw on an installed power supply When installing an interface processor use the ejector levers to properly seat the bus connectors in the backplane then tighten both captive installation screws These screws prevent accidental removal provide...

Page 15: ...5 slots 0 through 3 See Figure 4 Cisco 7507 slots 0 and 1 and slots 4 through 6 See Figure 5 Cisco 7513 slots 0 through 5 and slots 8 through 12 See Figure 6 Note The interface processor slots are oriented horizontally in the Cisco 7010 and Cisco 7505 and vertically in the Cisco 7000 Cisco 7507 and Cisco 7513 Figure 2 Cisco 7000 Interface Processor Slots H5288 Interface processor slots 0 1 2 3 4 R...

Page 16: ...processor slot 2 Interface processor slot 0 AC input power supply E J E C T S L O T 0 S L O T 1 N O R M A L C P U H A L T R E S E T A U X C O N S O L E ROUTE SWITCH PROCESSOR E N A B L E E N A B L E H2761 RSP slot DC OK LED ower switch Chassis grounding receptacles Power receptacle AC input power supply E J E C T S L O T 0 S L O T 1 N O R M A L C P U H A L T R E S E T A U X C O N S O L E ROUTE SWI...

Page 17: ...507 Interface Processor Slots ENABLE ENABLE EJECT SLOT 0 SLOT 1 NORMAL CPU HALT RESET AUX CONSOLE ROUTE SWITCH PROCESSOR 2 SLAVE MASTER SLAVE M ASTER H3888 Slot 0 1 2 3 4 5 6 pper ower supply hassis rounding eceptacles ower ower supply I O DCFA IL ACPOWER I O DCFA IL ACPOWER RSP slots aptive stallation screw aptive stallation screw ...

Page 18: ...twork maintains all routing information and ensures session preservation After an interface processor is reinstalled the system brings on line only interfaces that match the current configuration and were previously configured as up all others require that you configure them with the configure command For AIP configuration information refer to the section Configuring the AIP on page 32 Caution The...

Page 19: ...onnecting from the backplane will cause the system to interpret a board failure Using the ejector levers ensures that the board connector mates with the backplane in one continuous movement Using the handle to insert or remove an interface processor or failing to push the ejector levers to the full parallel position can leave some not all of the connector pins mated to the backplane a state that w...

Page 20: ...ure 7 shows proper handling of an interface processor during installation Figure 7 Handling Interface Processors during Installation Horizontal Orientation Shown Before you remove an interface processor that you will not replace or replace an interface processor component we recommend you shut down disable the interfaces to prevent anomalies when you reinstall the new or reconfigured interface pro...

Page 21: ...occupy empty slots to maintain consistent air flow through the interface processor compartment If you install a new interface processor you have to first remove the interface processor filler from the available interface processor slot Figure 8 shows functional details of inserting an interface processor and using ejector levers Figure 7 shows proper handling of an interface processor during insta...

Page 22: ...an interface processor immediately place it in an antistatic bag to prevent damage from electrostatic discharge Figure 8 Location of Ejector Levers and Captive Installation Screws Step 4 Hold the interface processor handle with one hand and place your other hand under the carrier to support the interface processor see Figure 7 guide the carrier into the slot Avoid touching the card or any connecto...

Page 23: ...Tighten the captive screws on the top and bottom of the interface processor faceplate to prevent the interface processor from becoming partially dislodged from the backplane and ensure proper EMI shielding These screws must be tightened to meet EMI specifications Caution To ensure adequate space for additional interface processors always tighten the captive installation screws on each newly instal...

Page 24: ...imode connections use one multimode duplex SC connector see Figure 10 or two single SC connectors see Figure 11 Figure 10 Duplex SC Connector Figure 11 Simplex SC Connector For SONET SDH single mode connections use the single mode ST2 connector bayonet style twist lock See Figure 12 Figure 12 ST2 Connector Warning Invisible laser radiation can be emitted from the aperture ports of the single mode ...

Page 25: ...Caution To ensure compliance with EMI standards the E3 PLIM connection requires an EMI filter clip CLIP E3 EMI on the receive port RCVR the DS3 PLIM connection does not require this clip For multimode connections connect the multimode interface cable to the MIC connector See Figure 14 Figure 14 MIC Connector on a TAXI 4B 5B PLIM Note To ensure correct operation of the TAXI E3 and DS3 AIPs Hardware...

Page 26: ...igure 15 SONET Multimode SC Duplex PLIM The SONET multimode SC duplex connector is shipped with a dust plug See Figure 16 Remove it by pulling on the plug as you squeeze its sides Figure 16 SONET ATM Multimode Fiber Optic Transceiver and Dust Plug For single mode SONET connections connect the single mode cable to the ST connector on the SONET PLIM See Figure 17 Figure 17 SONET Single Mode PLIM H22...

Page 27: ... DS3 and TAXI AIPs Hardware Revision 1 3 shipped from March 1995 the following minimum Cisco IOS release levels are required 10 0 9 10 2 5 10 3 1 or later Figure 18 E3 and DS3 PLIM Representative of Both PLIMs Caution To ensure compliance with EMI standards the E3 PLIM connection requires an EMI filter clip CLIP E3 EMI on the receive port RCVR the DS3 PLIM connection does not require this clip Fig...

Page 28: ...le mode products when no fiber cable is connected Avoid exposure and do not stare into open apertures The aperture port contains a warning label as shown in Figure 20 Figure 20 Warning Label on the AIP Caution To ensure compliance with EMI standards the E3 PLIM connection requires an EMI filter clip CLIP E3 EMI on the receive port RCVR the DS3 PLIM connection does not require this clip The followi...

Page 29: ...en the E3 PLIM and your ATM switch The white banded portion of the cable should attach between the receive and transmit or transmit and receive ports of the E3 PLIM and your ATM switch respectively Step 2 Hold the EMI filter clip as shown in Figure 21B Step 3 Attach the EMI filter clip to the receive cable as shown in Figure 21C Note Make certain the EMI filter clip makes mechanical contact with t...

Page 30: ...Using LEDs to Check AIP Status Each AIP model has three status LEDs on its faceplate See Figure 22 Figure 22 AIP LEDs H2900 ATM INTERFACE PROCESSOR UNI 34CX XTMR RCVR White insulator ATM INTERFACE PROCESSOR UNI 34CX XTMR RCVR To TX of switch To RX of switch ATM INTERFACE PROCESSOR UNI 34CX XTMR RCVR EMI filter clip A B D C White insulator H2417 E N A B L E D R X C a r r i e r R X C e l l s ...

Page 31: ...e display messages and verify that the system discovers the AIP The system should recognize the ATM interface but leave the interface configured as down Step 2 When the reinitialization is complete verify that the enabled LED on the AIP is on and remains on If the LED does stay on proceed to Step 5 If the enabled LED does not stay on proceed to the next step Step 3 If the enabled LED on the AIP fa...

Page 32: ...rocess 1 Configure the AIP To do so complete the following tasks Enable the AIP Configure the rate queue Customize the AIP configuration optional Configure PVCs Configure SVCs Monitor and maintain the ATM interface optional The first two tasks are required and then you must configure at least one PVC or SVC The VC options you configure must match in three places on the router on the ATM switch and...

Page 33: ...ation and the protocols you plan to route on the interface For additional descriptions of configuration subcommands and the configuration options available for ATM refer to the appropriate router system software configuration publications listed in the section If You Need More Information on page 2 Configuring the AIP first requires privileged level access to the EXEC command interpreter Also priv...

Page 34: ...guration mode Step 7 Write the new configuration to memory as follows Router copy running config startup config OK The system will display an OK message when the configuration has been stored After you have completed your configuration you can check it using show commands For an explanation of show commands refer to the section Using show Commands to Check the Configuration on page 41 Configuring ...

Page 35: ...r switched virtual circuits SVCs If all rate queues are unconfigured a warning message will appear as follows WARNING ATM4 0 All rate queues are disabled If the combined queue rates exceed the AIP physical layer interface bandwidth maximum a warning message will appear as follows WARNING ATM4 0 Total rate queue allocation nMbps exceeds maximum of nMbps Customizing the AIP Configuration You can cha...

Page 36: ...nfigure an ATM interface for local loopback useful for checking that the AIP is working use the following command Router config if loopback plim The no form of the command turns off loopback Router config if no loopback plim Setting the Reassembly Buffers The atm rxbuff command sets the maximum number of reassemblies that the AIP can perform simultaneously The AIP allows up 512 simultaneous reasse...

Page 37: ...Cs also require a permanent connection to the ATM switch All virtual circuit characteristics apply to PVCs When a PVC is configured all the configuration options are passed on to the AIP These PVCs are writable into the nonvolatile RAM NVRAM as part of the configuration and are used when the Cisco IOS image is reloaded Some ATM switches have point to multipoint PVCs that do the equivalent of broad...

Page 38: ...e range 1 through 2047 describing the maximum number of credits that a VC can accumulate The AIP makes use of this in multiples of 32 cells Every cell transfer consumes one cell credit One cell transfer credit is issued to a VC in the average rate speed To remove a PVC use the no form of this command as follows Router config if no atm pvc vcd Following is an example of the atm pvc command Router c...

Page 39: ... Enter mapping commands as groups multiple map entries can exist in one map list First create a map list then associate the list with an interface Enter the map list name command then enter the protocol protocol address and other variables as follows Router config map list name protocol protocol address atm vc vcd atm nsap nsap broadcast The broadcast keyword specifies that this map entry receives...

Page 40: ...ay the current state of the ATM network and the connected VCs To show current VCs and traffic information use the show atm vc command as follows Router show atm vc vcd Specifying a VCD displays specific information about that VCD To show current ATM specific information about the AIP interface use the show atm int interface command as follows Router show atm int interface To show current ATM traff...

Page 41: ...alled in interface processor slot 0 the running AIP microcode is Version 170 46 the PLIM type is 4B 5B and the available bandwidth is 100 Mbps Router show cont cbus additional displayed text omitted from this example AIP 4 hardware version 1 0 microcode version 170 46 Microcode loaded from system Interface 32 ATM0 0 PLIM is 4B5B 100Mbps 15 buffer RX queue threshold 36 buffer TX queue limit buffer ...

Page 42: ...ate 0 Burst 0 32cells Vcmode 0xE200 InPkts 164 OutPkts 0 InFast 0 OutFast 0 Broadcasts 0 The following sample shows the output from the show atm vc command when a vcd is specified AAL3 4 is enabled an ATM Switched Multimegabit Data Service SMDS subinterface has been defined and a range of message identifier numbers MIDs has been assigned to the PVC Router show atm vc 1 ATM0 0 1 VCD 1 VPI 0 VCI 1 e...

Page 43: ...with 32768K bytes of memory R4700 processor Implementation 33 Revision 1 0 Last reset from power on G 703 E1 software Version 1 0 SuperLAT software copyright 1990 by Meridian Technology Corp Bridging software X 25 software Version 2 0 NET2 BFE and GOSIP compliant TN3270 Emulation software copyright 1994 by TGV Inc Chassis Interface additional displayed text omitted from this example 1 AIP controll...

Page 44: ...lly Meshed Network Example of SVCs in a Fully Meshed Network Example of Connecting Two AIPs Back to Back For additional configuration examples refer to the appropriate Cisco IOS software configuration publications listed in the section If You Need More Information on page 2 Example of PVCs with AAL5 and LLC SNAP Encapsulation The following example creates PVC 5 on ATM interface 3 0 using LLC SNAP ...

Page 45: ...6e26 00 atm vc 6 broadcast decnet 10 1 atm vc 2 broadcast Example of PVCs in a Fully Meshed Network Figure 23 illustrates an example of a fully meshed network Figure 23 Fully Meshed ATM Configuration Example The term fully meshed indicates that any workstation can communicate with any other workstation In this example the routers are configured to use PVCs note the following The two map list state...

Page 46: ... vc 1 broadcast ip 131 108 168 3 atm vc 2 broadcast Router B ip routing interface atm 2 0 ip address 131 108 168 2 255 255 255 0 atm rate queue 1 100 atm pvc 1 0 20 aal5snap atm pvc 2 0 21 aal5snap map group test b map list test b ip 131 108 168 1 atm vc 1 broadcast ip 131 108 168 3 atm vc 2 broadcast Router C ip routing interface atm 4 0 ip address 131 108 168 3 255 255 255 0 atm rate queue 1 100...

Page 47: ... 168 1 atm nsap AB CDEF 01 234567 890A BCDE F012 3456 7890 1234 12 ip 131 108 168 3 atm nsap BC CDEF 01 234567 890A BCDE F012 3456 7890 1224 12 Router C interface atm 4 0 ip address 131 108 168 3 255 255 255 0 map group atm atm nsap address BC CDEF 01 234567 890A BCDE F012 3456 7890 1224 12 atm rate queue 1 100 atm maxvc 1024 atm pvc 1 0 5 qsaal map list atm ip 131 108 168 1 atm nsap AB CDEF 01 23...

Page 48: ... 0 1 atm vc 1 broadcast Using the Debug ATM Commands You can use the following debug commands to aid in solving ATM network problems Use the debug atm packet command to display the contents of the SNAP NLPID SMDS header followed by the first 40 bytes of a packet in hexadecimal format Use the debug atm errors command to display information from all detected ATM errors This includes such errors as e...

Page 49: ...own Error Message aip_love_note ATM2 0 asr 0xaaaa Explanation System processor received a love note from the AIP Love notes are messages that the AIP passes to the system processor to indicate an action or event has taken place For example the AIP signals the system processor with a love note when the AIP completes a VC setup teardown request Another love note signals to the system processor that ...

Page 50: ...r Message aip_enable ATM2 0 restarting VCs 5 Explanation All previously configured PVCs are being reconnected on the AIP The following are the possible error messages displayed when you enter the debug atm errors command Error Message aip_love_note ATM2 0 UNKNOWN asr 0x0000 Explanation A bad love note message was passed back by the AIP Error Message aip_setup_vc ATM2 0 TIQ err VC 1 peak 1000 avg 1...

Page 51: ...TM2 0 bad OAM type 0xaaaa Explanation The system processor received an OAM cell with an invalid OAM type value Error Message aip_raw_input ATM2 0 bad OAM function 0xaaaa Explanation The function value in the OAM cell is invalid in one of the following F4 SEGMENT F4 END to END F5 SEGMENT F5 END to END Error Message atm_pakalign ATM2 0 Invalid VC 65535 received type 0xaaaa Explanation A packet was r...

Page 52: ... error VC 1 not connected Explanation A static map exists for the protocol address but the VC has not been configured Error Message ATM ATM2 0 VC 1 Bad SAP received Explanation A packet with a bad SNAP encapsulation was received Error Message ATM ATM2 0 Bad VC 1 encapsulation configured Explanation An internal error has occurred Check the VC encapsulation ...

Page 53: ...or and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract contact Cisco s Technical Assistance Center TAC at 800 553 2447 408 526 7209 or tac cisco com To obtain general information about Cisco Systems Cisco products or upgrades contact 800 553 6387 408 526 7208 or cs rep cisco com This document is to be used in conjunction with the ...

Page 54: ...54 Asynchronous Transfer Mode Interface Processor AIP Installation and Configuration Cisco Information Online ...

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