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Product Numbers: 4OC3/ATM-MM-SC(=), 4OC3/ATM-IR-SC(=)
This publication contains instructions for installing and configuring the Quad OC-3c/STM-1c Asynchronous Transfer Mode (ATM) line card on a Cisco 12000 series Gigabit Switch Router. The Quad OC-3 ATM line card provides an ATM over OC-3 SONET interface for the Cisco 12000 series Gigabit Switch Router.
The following sections are included in this configuration note:
This section contains important information about additional documentation, Cisco IOS software configuration, safety, and technical support. It also describes important operating considerations for your line card.
The Cisco Documentation CD-ROM package provides comprehensive documentation on the entire Cisco product line. The CD-ROM package contains documents in both Adobe portable document format (PDF), viewable with Adobe Acrobat Reader, and hypertext markup language (HTML) files, viewable with a Web browser.
The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly; therefore, it might be more up to date than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription.
For hardware installation and maintenance information on the Cisco 12000 series routers, refer to the installation and configuration guide that shipped with your Cisco 12000 series router.
Also refer to the field replacable unit (FRU) publications that describe how to install, maintain, and replace router subsystems, such as cooling fans, power supplies, chassis backplanes, and so on.
The Cisco IOS software that runs on your router contains extensive features and functionality.
For Cisco IOS software configuration information and support, refer to the configuration and command reference publications in the Cisco IOS software configuration documentation set that corresponds to the Cisco IOS software release installed on your Cisco hardware. You can also refer to the Cisco IOS software release notes for the version of Cisco IOS software you are using on your router.
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Refer to "Cisco Connection Online," at the end of this publication, for complete information on how to obtain support through CCO.
You can also contact Cisco Customer Service at 800 553-6387 or 408 526-7208 (U.S.). Customer Service hours are 5:00 a.m. to 6:00 p.m. Pacific time, Monday through Friday (excluding company holidays). You can also send e-mail to cs-rep@cisco.com.
You may also find useful information in the Cisco Information Packet that shipped with your router.
Before you begin the procedures in this publication, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.
For information on regulatory compliance and safety, refer to the Regulatory Compliance and Safety Information publication that shipped with your device. This publication contains important safety information that you must read and understand before attempting to install, remove, or modify any hardware in your Cisco 12000 series router.
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. The following paragraph is an example of a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard. The remaining paragraphs in this section are translations of the initial safety warning.
 | Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie 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 tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety 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 que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.
Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. The Quad OC-3c/STM-1c POS line card consists of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, use a preventive ESD strap whenever you are handling a line card.
Following are guidelines for preventing ESD damage:
 | Caution For safety, periodically check the resistance value of the ESD strap. The measurement should be between 1 and 10 megohms. |
The Cisco 12000 series Gigabit Switch Routers provide high-speed, high-volume routing of packets and ATM cells. The Cisco 12000 series includes the following platforms, all sharing a similar architecture:
The GSR architecture offers the following features and capabilities in providing support to IP-based local-area networks (LANs) and wide-area networks (WANs):
In addition, the system allows for redundant, field-replaceable units (FRUs).
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 efficiency for intermittent traffic).
ATM is a connection-oriented environment. All traffic to or from an ATM network is prefaced with a virtual path identifier (VPI) and virtual channel identifier (VCI). A VPI/VCI pair is considered a single virtual circuit. Each virtual circuit is a private connection to another node on the ATM network. Each virtual circuit is treated as a point-to-point mechanism to another router or host and is capable of supporting bidirectional traffic.
Each ATM node is required to establish a separate connection to every other node in the ATM network that it must communicate with. All such connections are established using a permanent virtual circuit (PVC), which is set up by operator configuration, or a switched virtual circuit (SVC), which is set up and torn down with ATM signaling mechanisms. This ATM SVC signaling is based on the ATM Forum User-Network Interface (UNI) Specification V3.0.
Each virtual circuit is considered a complete and separate link to a destination node. Users can encapsulate data as they see fit across the connection. The ATM network disregards the contents of the data. The only requirement is that data be sent to the Quad OC-3c/STM-1c ATM line card in the specific ATM adaptation layer (AAL) format.
An AAL defines the conversion of user information into cells. The AAL segments upper-layer information into cells at the transmitter and reassembles them at the receiver. AAL3/4 and AAL5 support data communications.
An ATM connection transfers raw bits of information to a destination router or host. The ATM router takes the common part convergence sublayer (CPCS) frame, carves it up into 53-byte cells, and sends these cells to the destination router or host for reassembly. Forty-eight bytes of each cell are used for the CPCS data; the remaining 5 bytes are used for cell routing. The 5-byte cell header contains the destination VPI/VCI, payload type, cell loss priority (CLP), and header error control.
ATM requires certain features to provide a LAN environment to the users. One such feature is broadcast capability. Protocols that broadcast packets to all stations in a subnet must be allowed to do so with a single call to Layer 2. In order to support broadcasting, the router allows the user to specify a particular virtual circuit as a broadcast virtual circuit. When the protocol passes a packet with a broadcast address to the ATM driver, the packet is duplicated and sent to each virtual circuit marked as a broadcast virtual circuit. This method is known as pseudobroadcasting.
The Quad OC-3c/STM-1c ATM line card interfaces with the Cisco 12000 routers' switch fabric and provides Cisco 12000 series routers with four 155-Mbps Quad OC-3c/STM-1c duplex SC single mode or multimode SONET/SDH connection. This connection is concatenated, which provides for increased efficiency by eliminating the need to partition the bandwidth. Figure 1 shows a high-level block diagram of the Quad OC-3c/STM-1c ATM line card; Figure 2 shows front and rear views of the card.
Each line card has the following main components:
The transceivers support packet reassembly (convert ATM cells to packets) and segmentation (convert packets to ATM cells). They can handle up to 4000 simultaneous reassemblies based on an average packet size of 280 bytes. In addition, the reassembly application-specific integrated circuit (ASIC) and the segmentation ASIC support up to 2,000 active virtual circuits per port.
The transmit segmentation and reassembly on the QOC-3 is shared by all four ports. The SAR has 2 M of memory for segmenting AAL5 frames. To disallow VCs of one interface using all the segmentation memory, the hardware allows up to 16 pools to be specified by means of interface configuration commands. A maximum of four pools may be assigned to a single QOC-3 port.
The single-mode transceiver provides a full-duplex, 155-Mbps, 1300-nm, laser-based SONET/SDH compliant interface. With a power rating of -15 to -8 dBm (transmission) and -28 to -8 dBm (receiving), the single-mode transceiver operates at a distance of up to 15 km. The actual distance in any given case depends on the quality of the fiber attached to the transceivers. The single-mode interface meets both IEC 825 and CDRH Class I safety standards.
The multimode transceiver provides a full-duplex, 155-Mbps, 1300-nm LED-based SONET/SDH compliant interface. With a power rating of -20 to -14 dBm (transmission) and -26 to -14 dBm (receiving), the multimode transceiver operates at distances of up to 500 meters. The actual distance in any given case depends on the quality of the fiber attached to the transceivers.
The SONET specification for fiber-optic transmission defines two types of fiber: single mode and multimode. Signals can travel farther through single mode fiber than through multimode fiber.
The maximum distance for single mode installations is determined by the amount of light loss in the fiber path. Good quality single-mode fiber with very few splices can carry a Quad OC-3c/STM-1c signal 9.3 miles (15 km) or more, and good quality multimode fiber can carry the signal up to 1640 feet (500 meters).
If your environment requires the signal to travel close to the typical maximum distance (as listed in Table 1), you should use an optical time domain reflectometer (OTDR) to measure the power loss.
| Transceiver | Power Budget | Transmit Power | Receive Power | Typical Maximum Distance |
|---|---|---|---|---|
Single mode | 12 dB | -15 to -8 dBm1 at 1270 to 1380 nm2 | -28 to -8 dBm | 9.3 miles (15 km) |
Multimode | 6 dB | -20 to -14 dBm at 1270 to 1380 nm | -26 to -14 dBm | 1640.4 feet (500 m) |
| 1dBm = decibels per milliwatt 2nm = nanometer |
The burst buffer (4 MB) prevents the dropping of packets when there are instantaneous increases in the number of back-to-back small packets being transmitted at Quad OC-3c/STM-1c line rates. Burst buffers are employed to achieve high throughput and smooth out the arriving packet burst for the Layer 3 switch processor.
Each line card has two silicon queuing engines: receive and transmit. The receive engine moves packets from the burst buffer to the switch fabric, and the transmit engine moves packets from the switch fabric to the transmit interface.
When an incoming IP packet is clocked into the silicon queuing engine, the packet's integrity is verified by a check of the CRC. Next, the silicon queuing engine transfers the IP packet to buffer memory and tells the Layer 3 switching accelerator the location of the IP packet. Simultaneously, the silicon queuing engine is receiving forwarding information from the forwarding processor. The forwarding processor tells the silicon queuing engine the virtual output queue where the IP packet is to be placed.
Each virtual output queue represents an output destination (destination line card). This placement of the IP packets in a virtual output queue is based on the decision made by the forwarding processor. There is one virtual output queue for each line card, plus a dedicated virtual output queue for multicast service.
The transmit silicon queuing engine moves the packet from the switch fabric to the transmit buffer and then to the transmit interface.
The silicon queuing engine controls the placement of IP packets in buffer memory as well as their removal from buffer memory. The default packet buffer memory is 32 MB, which includes 16 MB of receive (Rx) buffers and 16 MB of transmit (Tx) buffers. The buffer memory can be configured to support up to 64 MB of receive buffers and 64 MB of transmit buffers. The buffers support delays comparable to the longest round trip delays measured in the Internet at Quad OC-3c/STM-1c line rates.
The Layer 3 switching accelerator assists the forwarding processor. It is a specially designed application-specific integrated circuit (ASIC) that optimizes access to the Layer 2 and Layer 3 information within each packet. At these very high line rates, this access process must be executed as rapidly as possible, which is why an ASIC is dedicated to the process.
A forwarding processor makes forwarding decisions based on the information in the CEF table and the Layer 2 and Layer 3 information in the packet. The Gigabit Route Processor (GRP) constantly updates forwarding information in the forwarding table based on the latest information in the routing table. The forwarding processor is the same type of processor as the one used on the GRP, an R5000 RISC processor operating at 200 MHz.
Once the forwarding decision has been made, the silicon queuing engine is notified by the forwarding processor, and the silicon queuing engine places the packet in the proper queue.
This partitioning between the Layer 2 switching accelerator and the forwarding processor blends the high throughput of hardware-accelerated forwarding with the flexibility of software-based routing.
The switch fabric interface is the same 1.25-Gbps, full-duplex data path to the switching fabric that is used by the GRP. Once a packet is in the proper queue, the switch fabric interface issues a request to the master clock scheduler on the clock scheduler card. The scheduler issues a grant and transfers the packet across the switching fabric.
A maintenance bus (MBus) module on the line card responds to requests from the master MBus module on the GRP. The line card MBus module can report temperature and voltage information to the master MBus module. In addition, the MBus module on the line card contains the ID-EEPROM, which stores the serial number, hardware revision level, and other information about the card.
Each line card maintains Cisco Express Forwarding (CEF) tables. These tables, derived from routing tables maintained by the GRP, are used by the line card processor to make forwarding decisions. Large networks may require more DRAM to support large CEF tables. For information on adding memory to a line card, see the document Cisco 12000 Series Gigabit Switch Router Memory Replacement Instructions.
This section provides information to help you prepare for installing and configuring an Quad OC-3c/STM-1c ATM line card. The following sections describe prerequisites and preparation information:
We recommend that you do the following before beginning any of the procedures in this document:
You need the following tools and parts to remove and replace a Cisco 12000 series line card. If you need additional equipment, contact a customer service representative for ordering information.
The Quad OC-3c/STM-1c ATM line card is compatible with any Cisco 12000 series router that is operating with the following system software: Cisco IOS Release 11.2(14)GS1 or later, GRP microcode Version 1.13 or later, and line card microcode Version 1.14 or later.
The show version, show diag, and show hardware commands display the current hardware configuration of the router, including the system software version that is currently loaded and running. For complete descriptions of show commands, refer to the Configuration Fundamentals Configuration Guide and Configuration Fundamentals Command Reference publications, which are available on the Documentation CD-ROM or as printed copies.
In the following example of the show version command, the running system software, Release 11.2(13)GS1, is displayed in italics.
Router> show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(13)GS1, EARLY DEPLOYMENT, REL. SOFTWARE (fc1) Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Fri 22-May-98 13:32 Image text-base: 0x600108E0, data-base: 0x60576000 (remainder of displayed text omitted from example)
The show diags command displays the GRP microcode version and the line card microcode version (shown in italics in the following example):
router# show diags
SLOT 0 (RP/LC 0 ): Route Processor
MAIN: type 19, 800-2427-01 rev B0 dev 6358076
HW config: 0xFF SW key: FF-FF-FF
PCA: 73-2170-03 rev B0 ver 3
HW version 1.4 S/N CAB0151009Z
MBUS: MBUS Agent (1) 73-2146-06 rev A0 dev 0
HW version 1.1 S/N CAB01450136
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.35 (RAM) (ROM version is 01.34)
Using CAN Bus A
ROM Monitor version 175
Board is analyzed
Board State is IOS Running (IOS UP )
Insertion time: 00:00:11 (1d14h ago)
SLOT 9 (RP/LC 9 ): 4 port ATM Over SONET OC-3c/STM-1 Single Mode
MAIN: type 39, 00-0000-00 rev 71 dev 16777215
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-3033-02 rev 71 ver 2
HW version 1.0 S/N CAB02180072
MBUS: MBUS Agent (1) 73-2146-07 rev B0 dev 0
HW version 1.2 S/N CAB020800D7
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.35 (RAM) (ROM version is 01.33)
Using CAN Bus A
ROM Monitor version 00.0D
Fabric Downloader version used 00.0D (ROM version is 00.0D)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:11 (1d14h ago)
DRAM size: 33554432 bytes
FrFab SDRAM size: 33554432 bytes
ToFab SDRAM size: 33554432 bytes
If the displays indicate that the running system software is a version earlier than Release 11.2(9) or that the running GRP microcode is a version earlier than 1.13, check the contents of Flash memory to determine if the required images are available on your system. The show flash command displays a list of all files stored in Flash memory. If you do not have the correct software version, contact Cisco customer service.
To ensure compatibility with the software, your Quad OC-3c/STM-4 ATM line card should have a hardware revision level of 73-3033-02 Rev. A0 for single mode and 73-3034-02 Rev. A0 for multimode. The hardware revision number is printed on a label affixed to the component side of the card. The hardware revision number can also be displayed using the show diag and show hardware commands.
This section describes the line card slot locations in the following Cisco 12000 series routers:
Before installing your line card into the router, verify that a line card slot is available.
Figure 3 shows the location of the line card slots in the Cisco 12016 GSR. The Cisco 12016 GSR chassis has three integral card cages: the upper card cage, the lower card cage, and the switch fabric card cage. You can install line cards in the upper or lower card cage.
The upper card cage has eight user-configurable slots that support the following types of cards in the quantities indicated:
The lower card cage in the Cisco 12016 GSR has eight user-configurable slots, numbered 8 through 15, that support the following types of cards in the quantities indicated:
Figure 4 shows the location of the line card slots in the Cisco 12012. In the Cisco 12012, line cards are installed in the upper card cage, which has 12 user-configurable slots supporting a combination of line cards and a Gigabit Route Processor (GRP). The right-most slot in the upper card cage supports a non-configurable alarm card. You can insert the GRP into any line card slot; Figure 4 shows the GRP in slot 0.
Figure 5 shows the location of the line card slots in the Cisco 12008. The Cisco 12008 upper card cage contains ten slots that accommodate the following types of cards in the quantities indicated:
Use a single-mode or multimode, optical-fiber interface cable to connect your Cisco 12000 series router to another router or switch. In general, multimode cables are gray or orange, and single-mode cables are yellow.
For SONET/SDH single-mode and multimode optical-fiber connections, use one duplex SC-type connector (see Figure 6) or two simplex SC-type connectors (see Figure 7).
Attach either one duplex fiber cable or two simplex fiber cables between the line card and the device to which the line card is connected. Observe the receive (Rx) and transmit (Tx) cable relationship shown in Figure 8.
 | Warning Because invisible radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to radiation and do not stare into open apertures. |
| Warning
Class 1 laser product (single-mode). |
| Warning
Class 1 LED product (multimode). |
The cable-management system in the Cisco 12000 series router organizes the interface cables entering and exiting the system, keeping them out of the way and free of sharp bends. Excessive bending in an interface cable can degrade performance and possibly harm the cable.
The cable-management system consists of two separate components:
The Cisco 12016 has a cable-management tray for the upper card cage that is positioned above the upper line card slots, and a cable-management tray for the lower card cage that is positioned below the lower line card slots. In addition, there are vertical cable troughs on either side of the card cages that keep the cables organized and secured.
Figure 9 shows a generic cable-management tray and cable-management bracket mounted on a Cisco 12012 GSR.
The cable-management tray on the Cisco 12008 GSR is similar in form and function to the cable-management tray on the Cisco 12012 GSR.
This section describes the procedures for installing or replacing a Cisco 12000 series GSR line card. The following sections describe how to remove and replace a line card.
| Caution To avoid erroneous failure messages, remove or insert only one line card at a time. Also, after inserting or removing a line card, allow at least 15 seconds before removing or inserting another line card so that the system can reinitialize and note the current configuration of all interfaces. |
You can remove and replace line cards while the system is operating; you do not need to notify the software or reset the system power. This functionality allows you to add, remove, or replace line cards with the system online, which provides a method that is seamless to end users on the network, maintains all routing information, and ensures session preservation.
After you reinstall a line card, the system automatically downloads the necessary software from the GRP. After that, the system brings on line only those interfaces that match the current configuration and were previously configured as up. You must configure all others with the configure command. (For Quad OC-3c/STM-1c ATM line card configuration information, refer to the section "Configuring the Interface on the Quad OC-3c/STM-1c ATM Line Card" later in this document.)
| Caution The system can indicate a hardware failure if you do not follow proper procedures. Remove or insert only one line card at a time. Allow at least 15 seconds for the system to complete the preceding tasks before removing or inserting another line card. |
Each line card has two ejector levers that allow you to release the card from its backplane connector when you are removing the line card and firmly seat the line card in its backplane connector when you are installing the line card. The ejector levers align and seat the card connectors in the backplane.
When you remove a line card, always use the ejector levers to ensure that the card connector pins disconnect from the backplane in the logical sequence expected by the system. Any card that is only partially connected to the backplane can halt the system.
Similarly, when you install a line card, always use the ejector levers to ensure that the card is correctly aligned with the backplane connector, the card connector pins make contact with the backplane in the correct order, and the card is fully seated in the backplane. A card that is only partially seated in the backplane will cause the system to hang and subsequently crash.
To remove line card interface cables, use Figure 11 as a reference and perform the following steps:
Step 1 Attach an ESD wrist strap to your wrist and to the ESD connection socket on the chassis or to a bare metal surface on the chassis or frame.
Step 2 Disconnect and remove the line card interface cables and line card cable-management bracket (see Figure 11).
(a) Disconnect the interface cable connectors from the line card interface ports.
(b) Use a 3/16-inch flat-blade screwdriver to loosen the captive installation screws at the ends of the line card cable-management bracket.
(c) Detach the line card cable-management bracket from the line card and set it aside.
If you are replacing a failed line card, remove the existing card first, and then install the new line card in the same slot. Line cards support online insertion and removal, meaning you can remove and replace line cards while the system remains powered up.
To remove a line card, use Figure 11 as a reference and perform the following steps:
Step 1 Use a 3/16-inch flat-blade screwdriver to loosen the captive screw at each end of the line card faceplate. (See Figure 12a.)
| Caution When you remove a line card, always use the ejector levers to ensure that the card connector pins disconnect from the backplane in the logical sequence expected by the system. Any card that is only partially connected to the backplane can halt the system. |
Step 2 Simultaneously pivot the ejector levers away from each other to release the line card from the backplane connector. (See Figure 12b.)
Step 3 Grasp the ejector levers and pull the line card half way out of the slot.
Step 4 Grasp the line card faceplate with one hand and pull the line card straight out of the slot, keeping your other hand under the line card to guide it. (See Figure 12c.) Avoid touching the line card printed circuit board, components, or any connector pins.
Step 5 Place the removed line card on an antistatic mat or foam pad, or place it in an antistatic bag if you plan to return it to the factory.
Step 6 If the line card slot is to remain empty, install a line card blank (product number MAS-GSR-BLANK) to keep dust out of the chassis and to maintain proper airflow through the line card compartment. Secure the line card blank to the chassis by tightening its captive screws.
A line card slides into any available line card slot and connects directly to the backplane.
If you install a new line card, you must first remove the line card blank from the available slot. Refer to the procedures in the section "Removing a Line Card," earlier in this document.
| Caution The system can indicate a hardware failure if you do not follow proper procedures. Remove or insert only one line card at a time. Allow at least 15 seconds for the system to complete the preceding tasks before removing or inserting another line card. |
Use the following procedure to install a line card:
Step 1 Ensure that a console terminal is connected to the GRP console port and that the console is turned on.
Step 2 Attach an ESD wrist strap to your wrist and to the ESD connection socket on the chassis or to a bare metal surface on the chassis or frame.
Step 3 Choose an available line card slot for the line card, and ensure that the line card's cable is long enough for you to connect the line card with any external equipment.
| Caution To prevent ESD damage, handle line cards by the card carrier edges only. |
Step 4 Grasp the faceplate of the line card with one hand and place your other hand under the card carrier to support the weight of the card; position the card for insertion into the card cage slot. Avoid touching the line card printed circuit board, components, or any connector pins.
Step 5 Carefully slide the line card into the slot until the ejector levers make contact with the edges of the card cage, then stop. Make sure the ejector lever hooks catch the lip of the card cage. (See Figure 13.)
| Caution When you install a line card, always use the ejector levers to ensure that the card is correctly aligned with the backplane connector, the card connector pins make contact with the backplane in the correct order, and the card is fully seated in the backplane. A card that is only partially seated in the backplane will cause the system to hang and subsequently crash. |
Step 6 Simultaneously pivot both ejector levers toward each other until they are perpendicular to the line card faceplate. This action firmly seats the card in the backplane.
Step 7 Use a 3/16-inch flat-blade screwdriver to tighten the captive screw on each end of the line card faceplate to ensure proper EMI shielding and prevent the line card from becoming partially dislodged from the backplane. (These screws must be tightened to meet EMI specifications.)
| Caution To ensure adequate space for additional line cards, always tighten the captive installation screws on each newly installed line card before you insert any additional line cards. These screws also prevent accidental removal and provide proper grounding and EMI shielding for the system. |
Step 8 Reinstall the line card cable-management bracket (see Figure 11):
(a) Unhook the line card cable-management bracket from the chassis cable-management tray or bracket.
(b) Position the line card cable-management bracket over the front of the line card faceplate.
(c) Insert and tighten the captive screw at each end of the line card cable-management bracket to secure the bracket to the line card.
Step 9 Plug the interface cable connectors into their original ports on the line card faceplate.
This section contains the following procedures:
In the following procedure, you are assumed to have installed a new line card in the router; you must also install a line card cable-management bracket on the line card.
To install a line card cable-management bracket on a line card, perform the following steps:
Step 1 Attach an ESD wrist strap to your wrist and to the ESD connection socket on the chassis or to a bare metal surface on the chassis or frame.
Step 2 Attach the line card cable-management bracket to the line card as follows:
(a) Position the line card cable-management bracket over the front of the line card faceplate.
(b) Insert and tighten the captive screw at each end of the line card cable-management bracket to secure the bracket to the line card.
Step 3 Starting with the bottom port on the line card (see Figure 14a), connect each interface cable to the intended port.
Step 4 Carefully press the interface cable into the cable clip on the end of the cable standoff as shown in Figure 14b. Avoid any kinks or sharp bends in cable.
Step 5 Proceeding upward, carefully press the interface cable into the cable-routing clips along the base of the vertical cable management bracket as shown in Figure 14c.
Step 6 Repeat Step 3 through Step 5 for all of the interface cables on the line card ports.
To remove the interface cables from a line card cable-management bracket and remove the cable-management bracket from a line card, perform the following steps:
Step 1 Attach an ESD wrist strap to your wrist and to the ESD connection socket on the chassis or to a bare metal surface on the chassis or frame.
Step 2 On a piece of paper, note the current interface cable connections to the ports on each line card.
Step 3 Starting with the interface cable for the bottom port on the line card (for cards with multiple ports), disconnect the cable from the line card port (see Figure 15a).
Step 4 Proceeding upward, remove the interface cable from the cable clip on the end of the cable standoff (see Figure 15b).
Step 5 Remove the interface cable from the cable-routing clips along the base of the vertical cable-management bracket (see Figure 15c).
Repeat Step 3 through Step 5 for any other interface cables on the line card ports, then proceed to Step 6.
Step 6 Loosen the captive installation screw at each end of the line card cable-management bracket and remove the bracket from the line card.
After you have installed the line card and connected the interface cables, verify that the line card is working properly by checking the LEDs on the faceplate of the line card. Each Quad OC-3c/STM-1c ATM line card provides the following two types of LEDs (see Figure 2) used for monitoring the operating status of the line card.
During a typical line card boot process, the following events occur:
To verify that the line card is working properly, perform the following operational checks:
There are two, 4-digit alphanumeric LED displays at one end of the faceplate, near the ejector lever. These LEDs display messages telling you the state of the card. In general, the LEDs do not turn on until the GRP has discovered and powered up the card. It is normal for a message displayed as part of a sequence or process to appear too briefly for it to be read.
As it boots, the line card displays a sequence of messages that is similar to that shown in Table 2.
| LED Display1 | Meaning | Source |
|---|---|---|
MROM | The MBus microcode begins to execute; nnnn is the microcode version number. For example, microcode version 1.17 would display as 0117.2 This display might not be visible because it occurs for only a brief time. | MBus controller |
LMEM | Low memory on the line card is being tested. | Line card ROM monitor |
LROM | Low memory test has been completed. | Line card ROM monitor |
BSS | Main memory is being initialized. | Line card ROM monitor |
RST | The contents of the reset reason register are being saved. | Line card ROM monitor |
IO | Reset I/O register is being accessed. | Line card ROM monitor |
EXPT | Interrupt handlers are being initialized. | Line card ROM monitor |
TLB | TLB is being initialized. | Line card ROM monitor |
CACH | CPU data and instruction cache is being initialized. | Line card ROM monitor |
MEM | The size of main memory on the line card is being discovered. | Line card ROM monitor |
LROM | The ROM is ready for the download attempt. | Line card ROM monitor |
ROMI | The ROM image is being loaded into line card memory. | GRP IOS software |
FABL | The line card is waiting for the loading of the fabric downloader.3 | GRP IOS software |
FABL | The fabric downloader is being loaded into line card memory. | GRP IOS software |
FABL | The fabric downloader is being launched. | GRP IOS software |
FABL | The fabric downloader has been launched and is running. | GRP IOS software |
IOS | The Cisco IOS software is being downloaded into line card memory. | GRP IOS software |
IOS | The Cisco IOS software is being launched. | GRP IOS software |
IOS | The Cisco IOS software is running. | GRP IOS software |
IOS | The line card is enabled and ready for use. | GRP IOS software |
| 1The LED sequence shown in Table 2 might occur too quickly for you to view; therefore, this sequence is provided in this tabular form as a baseline for how the line cards should function at startup. 2The version of MBus microcode running on your system might be different. 3The fabric downloader loads the Cisco IOS software image onto the line card. |
Table 3 lists other messages displayed on the line card alphanumeric LED display.
| LED Display | Meaning | Source |
|---|---|---|
MRAM | The MBus microcode begins to execute; nnnn is the microcode version number. For example, microcode version 1.17 would display as 0117. This display might not be visible because it occurs for only a brief time. | MBus controller |
MAL | Card malfunction | GRP |
PWR | Card not powered | GRP |
PWR | Card powered | GRP |
IN | In reset | GRP |
RSET | Reset complete | GRP |
MBUS | MBus agent downloading | GRP |
MBUS | MBus agent download complete | GRP |
ROMI | Getting ROM images | GRP |
ROMI | Acquisition of ROM image complete | GRP |
MSTR | Waiting for mastership determination | GRP |
CLOK | Waiting for slot clock configuration | GRP |
CLOK | Slot clock configuration done | GRP |
FABL | Loading fabric downloader complete | GRP |
FABI | Waiting for fabric initialization to complete | GRP |
IOS | Downloading of Cisco IOS software is complete | GRP |
BMA | Cisco IOS software BMA error | GRP |
FIA | Cisco IOS fabric interface ASIC configuration error | GRP |
CARV | Buffer carving failure | GRP |
DUMP | Line card requesting a core dump | GRP |
DUMP | Line card dumping core | GRP |
DUMP | Line card core dump complete | GRP |
DIAG | Diagnostic mode | GRP |
FDAG | Downloading field diagnostics | GRP |
FDAG | Launching field diagnostics | GRP |
POST | Launching power-on self-test (POST) | GRP |
UNKN | Unknown state | GRP |
Next to each port on the Quad OC-3c/STM-1c ATM line card are three green LEDs: Active, Carrier, and RX Cell. These LEDs signal the status of the port, as explained in Table 4.
| LED State | Explanation | ||
| Active | Carrier | RX Cell | |
Off | Off | Off | Card is off. |
On | Off | Off | Card is on. |
On | On | Off | Line protocol is not up. |
On | On | On | Line card is functioning normally. |
The RX cell LED flashes when data is being transmitted or received.
The status LEDs on the line card might not go on until you have configured the line card interfaces (or turned them on if they were shut down). In order to verify correct operation of each interface, complete the configuration procedures for the line card (refer to "Configuring the Interface on the Quad OC-3c/STM-1c ATM Line Card" later in this publication).
If the Active LED near the port on the line card does not come on, verify the following conditions:
To verify that the line card is connected correctly, perform the following procedure:
Step 1 While the system reinitializes each interface, observe the console display messages and verify that the system discovers the Quad OC-3c/STM-1c ATM line card. If all of the following conditions are true, the system should recognize the interface, but leave the interface configured as down:
Step 2 When the reinitialization is complete, verify that the Active LED on the Quad OC-3c/STM-1c ATM line card is on and remains on. If the LED does stay on, proceed to Step 5. If the Active LED does not stay on, proceed to the next step.
Step 3 If the Active LED on the Quad OC-3c/STM-1c ATM line card fails to go on, determine if the Quad OC-3c/STM-1c ATM line card board connector is fully seated in the backplane. Loosen the captive installation screws and firmly pivot the ejector levers toward each other until both are perpendicular to the Quad OC-3c/STM-1c ATM line card faceplate. Tighten the captive installation screws.
After the system reinitializes the interfaces, the Active LED on the Quad OC-3c/STM-1c ATM line card should go on. If the Active LED goes on, proceed to Step 5. If the Active LED does not go on, proceed to the next step.
Step 4 If the Active LED still fails to go on, remove the Quad OC-3c/STM-1c ATM line card and try installing the Quad OC-3c/STM-1c ATM line card in another available line card slot.
Step 5 Use the show interfaces command to verify the status of the interface. (If the interface is not configured, you must use the procedures in the section "Configuring the Interface on the Quad OC-3c/STM-1c ATM Line Card.")
If an error message displays on the console terminal, refer to the appropriate reference publication for error message definitions. If you experience other problems that you are unable to solve, contact a service representative for assistance.
For more information on troubleshooting and diagnostics, consult the installation and configuration guide that came with your Cisco 12000 series router.
This section provides procedures for configuring a Quad OC-3c/STM-1c ATM line card. After configuring this card, you should configure the ATM switch to which the card will connect. To configure your ATM switch, refer to the user documentation for your ATM switch.
On power up, the interface on a new Quad OC-3c/STM-1c ATM line card is shut down. To enable the interface, you must enter the no shutdown command in configuration mode. When the Quad OC-3c/STM-1c ATM line card is enabled (taken out of shutdown) with no additional arguments, the default interface configuration file parameters are used. Table 5 lists these default parameters.
| Parameter | Configuration Command | Default Value |
|---|---|---|
Maximum transmission unit (mtu) | [no] mtu bytes | 4470 bytes |
Maximum numbers of virtual circuits | atm maxvc | 2048 (per interface) |
Cisco Discovery Protocol (cdp) | [no] cdp enable | cdp enable |
Loopback | [no] loopback [diagnostic | line] | no loopback line |
Number of VCs per VP | atm vc-per-vp | 1024 VCs per VP |
After you verify that the new Quad OC-3c/STM-1c ATM line card is installed correctly (all cables are correctly connected and the Active LED is on), you can use the configure command to configure the new ATM interface. Be prepared with the information you will need, such as the interface IP address.
Configuring the Quad OC-3c/STM-1c ATM line card requires that you have privileged-level access to the EXEC command interpreter. Privileged-level access usually requires a password. (Contact your system administrator, if necessary, to obtain privileged-level access.)
The Cisco 12000 series routers identify an interface address by its line card slot number and port number in the format slot/port. Because each Quad OC-3c/STM-1c ATM line card contains a single ATM interface, the port number is always 0. For example, the slot/port address of an ATM interface on an Quad OC-3c/STM-1c ATM line card installed in line card slot 2 would be 2/0.
Use the following procedure to configure the interface. Press the Return key after each configuration step unless otherwise noted.
Step 1 Confirm that the system recognizes the card by entering the show version command:
Router# show version
For an example of output from the show version command, see the section "Using show Commands to Check the Configuration" later in this document.
Step 2 Check the status of each port by entering the show interface command:
Router# show interface
For an example of output from the show interface command, see the section "Using show Commands to Check the Configuration" later in this publication.
Step 3 Enter configuration mode and specify that the console terminal will be the source of the configuration subcommands:
Router# configure terminal
Step 4 Enable IP routing by entering the ip routing command:
Router(config)# ip routing
Step 5 At the prompt, specify the new ATM interface to configure by entering the interface command, followed by the type (atm) and slot/port (interface processor slot number/port number). Even though the card contains only one port, you must use the slot/port notation. The example that follows is for an Quad OC-3c/STM-1c ATM line card in interface processor slot 1:
Router(config)# interface atm 1/0
Step 6 Assign an IP address and subnet mask to the interface with the ip address configuration subcommand, as in the following example:
Router(config-if)# ip address 1.1.1.3 255.255.255.0
Step 7 Change the shutdown state to up and enable the ATM interface:
Router(config-if)# no shutdown
The no shutdown command passes an enable command to the Quad OC-3c/STM-1c ATM line card, which then begins segmentation and reassembly (SAR) operations. It also causes the line card to configure itself based on the previous configuration commands sent.
Step 8 Add any additional configuration subcommands required to enable routing protocols and adjust the interface characteristics.
Step 9 When you have included all of the configuration subcommands to complete the configuration, enter ^Z (hold down the Control key while you press Z) to exit configuration mode.
Step 10 Write the new configuration to memory:
Router# copy running-config startup-config
The system displays 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."
This section documents new commands. Other commands used in line card configuration are documented in the Cisco IOS Release 11.2 command reference publications.
You can change the Quad OC-3c/STM-1c ATM line card default configuration values to match your network environment. Perform the tasks in the following sections if you need to customize the Quad OC-3c/STM-1c ATM line card configuration:
For more information about these and other configuration commands and options, refer to the section "Cisco IOS Software Configuration."
The Quad OC-3c/STM-1c ATM line card's interface is referred to as atm in the configuration commands. An interface is created for each Quad OC-3c/STM-1c ATM line card found in the system at reset time.
To select a specific Quad OC-3c/STM-1c ATM line card interface, use the interface atm slot/port command:
Router(config)# interface atm slot/port
In STM-1 mode, the Quad OC-3c/STM-1c ATM line card sends idle cells for cell-rate decoupling. In OC-12c mode, the Quad OC-3c/STM-1c ATM line card sends unassigned cells for cell-rate decoupling. The default SONET setting is OC-12c. To configure for STM-4, use the following command:
Router(config-if)# atm sonet stm-4
To return to OC-12c, use the no atm sonet stm-4 command.
Improvements in the custom ASIC circuitry support configurable output buffer pools. The output buffer pool refers to the output buffer memory accessed through the ASIC and is separate from the silicon queuing engine buffer. Output buffer memory can be segmented into multiple pools. Pools can be assigned to specific physical ports. For example, all the packets for port 0 go into a pool and packets for port 1 go into a different pool. A minimum of four pools exist, one pool for each port. A maximum of 16 pools can be configured.
To configure SAR transmit buffer pools on an ATM interface, use the sar txpools interface command. To restore the default single pool per interface, use the no form of the command.
[no] sar txpools { 0 | 2 | 4 }The no form of the command also moves any VCs assigned to pools other than pool 0 to pool 0.
If you configure no transmit buffer pools, the default is one 512Kb buffer per port.
To assign PVCs to different buffer pools, use the sar vc interface command. Use the no sar txpools command to move all VCs to pool 0.
sar vc vcid txpool poolidThe VC must be configured previously and the poolid must be valid for the port.
Use the show sar txpools EXEC command to display information about the VCs and the pools.
show sar txpools interface atm [slot/port]All VCs for all ports share up to 64 M of transmit buffer memory (Frfab). Even when you configure SAR transmit pools, a slow draining VC that has a relatively high input rate can consume much, or all, of the transmit buffer memory. When one VC uses more transmit buffer memory, less remains for other VCs.
By defining transmit queue limits for a port, you can set a hard threshold of the number of packets that can be queued for transmission on the port. Once the queue reaches the threshold, any new packets switched to the port from the fabric will be dropped. If multiple SAR Tx Pools are defined for a port, the transmit queue limit is divided equally among the pools. This isolates VCs on one pool from starving other VCs assigned to different pools on the same port.
Keep in mind the following points:
To set the configuration limit for a port, use the [no] tx-queue-limit number interface command. By default the transmit limits are set to a high number (64K), which sets no limits.
To see the current limits and how many packets are queued, execute the execute slot num sh cont frfab queue command.
The following example shows the output from the execute slot command:
router#execute slot 4 show controller frfab queue
========= Line Card (Slot 4) =======
Carve information for FrFab buffers
SDRAM size: 33554432 bytes, address: 20000000, carve base: 20034000
33341440 bytes carve size, 2 carve(s)
max buffer data size 4496 bytes, min buffer data size 80 bytes
52250/52250 buffers specified/carved
33337136/33337136 bytes sum buffer sizes specified/carved
Qnum Addr Head Tail Addr #Qelem LenThresh
---- ---- ---- ---- ---- ------ ---------
4 non-IPC free queues:
26597/26597 (buffers specified/carved), 50.90%, 80 byte data size
1 10700004 17454 17453 10720004 26597 65535
16167/16167 (buffers specified/carved), 30.94%, 608 byte data size
2 10700008 35591 35590 10720008 16167 65535
7822/7822 (buffers specified/carved), 14.97%, 1568 byte data size
3 1070000C 43303 43302 1072000C 7822 65535
1564/1564 (buffers specified/carved), 2.99%, 4496 byte data size
4 10700010 51320 51308 10720010 1564 65535
IPC Queue:
100/100 (buffers specified/carved), 0.19%, 4112 byte data size
30 10700078 26 25 10720078 100 65535
Raw Queue:
31 1070007C 0 31 1072007C 0 65535
FrFab Output Queues:
32 10700080 0 0 10720080 0 7500
33 10700084 0 0 10720084 0 7500
34 10700088 0 0 10720088 0 7500
35 1070008C 0 0 1072008C 0 7500
36 10700090 0 51908 10720090 0 1000
37 10700094 0 0 10720094 0 1000
38 10700098 0 0 10720098 0 1000
39 1070009C 0 0 1072009C 0 1000
40 107000A0 0 35719 107200A0 0 1000
41 107000A4 0 0 107200A4 0 1000
42 107000A8 0 0 107200A8 0 1000
43 107000AC 0 0 107200AC 0 1000
44 107000B0 0 0 107200B0 0 2000
45 107000B4 0 50914 107200B4 0 2000
46 107000B8 0 0 107200B8 0 65535
47 107000BC 0 0 107200BC 0 65535
^^^^ ^^^^^
Packets Tx Limit
Queued
Pools on each port are as follows:
The following example configures port 1 with a limit of 4000 packets in the transmit buffer queue:
router(config)#int atm 4/1 router(config-if)#tx 4000
A virtual circuit is a point-to-point connection between a remote host and a router. A virtual circuit is established for each ATM end node with which the router communicates. The characteristics of the virtual circuit are established when the virtual circuit is created and include the following for the Quad OC-3c/STM-1c ATM line card:
By default, fast switching is enabled on all Quad OC-3c/STM-1c ATM line card interfaces. You can turn off these switching features using interface configuration commands.
Each permanent virtual circuit (PVC) configured into the router remains active until the circuit is removed from the configuration. All virtual circuit characteristics apply to PVCs. Each PVC also requires a permanent connection to the ATM switch. When a PVC is configured, all the configuration options are passed on to the Quad OC-3c/STM-1c ATM line card. These PVCs are writable into the NVRAM as part of the configuration and are used when the Cisco IOS image is reloaded.
To configure a PVC, you must complete the following tasks:
When you create a PVC, you create a virtual circuit descriptor (VCD) and attach it to the VPI and VCI. The VCD tells the card which VPI/VCI to use for a particular packet. The Quad OC-3c/STM-1c ATM line card requires this feature to manage the packets for transmission. The number chosen for the VCD is independent of the VPI/VCI used.
When you create a PVC, you also specify the AAL and encapsulation. To create a PVC on the Quad OC-3c/STM-1c ATM line card interface, you use the atm pvc command:
Router(config-if)# atm pvc vcd vpi vci aal-encap [peak average burst][oamseconds]
where
vcd is a per-Quad OC-3c/STM-1c ATM line card unique index value describing this virtual circuit in the range of 1 to the value set with the atm maxvc command.
vpi is the ATM network VPI to use for this virtual circuit, in the range of 0 through 255.
vci is the ATM network VCI to use for this virtual circuit, in the range of 0 through 2,047.
aal-encap is the ATM adaptation layer encapsulation type to use on this virtual circuit. The Quad OC-3c/STM-1c ATM line card supports aal5mux ip and aal5snap.
peak is the (optional) maximum rate, in kbps, at which this virtual circuit can transmit data.
average is the (optional) average rate, in kbps, at which this virtual circuit transmits data.
burst is an (optional) value, between 1 and 256, that specifies the maximum number of ATM cells the virtual circuit can transmit to a network at the peak rate of the PVC. To determine the number of burst cells, multiply the burst value by 32.
oam seconds (optional) specifies how often to generate an OAM F5 loopback cell from this virtual circuit. The default value is 10 seconds.
To remove a PVC, use the no form of this command:
Router(config-if)# no atm pvc vcd
The following is an example of the atm pvc command used with UBR:
Router(config)# interface atm 2/0 Router(config-if)# atm pvc 2047 1 128 aal5snap
The following is an example of the atm pvc command used with VBR:
Router(config)# interface atm 3/0 Router(config-if)# atm pvc 2047 1 128 aal5snap 155000 155000 94
The atm pvc command creates PVC n and attaches the PVC to VPI and VCI.
The Cisco IOS software supports a mapping scheme that identifies the ATM address of remote hosts or routers. Each address can be specified either as a VCD for a PVC or a network service access point (NSAP) address for SVC operation.
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:
Router(config)# map-list name IP protocol_address atm-vc vcd [broadcast]
The broadcast keyword indicates that this map entry is to be used when the corresponding protocol sends broadcast packets, such as network routing protocol updates, to the interface. If you do not specify broadcast, the ATM software is prevented from sending routing protocol updates to the remote hosts.
After you create the map list, specify the ATM interface to which it applies with the interface command:
Router(config)# interface atm slot/port
Associate the map list to an interface with the following command:
Router(config-if)# map-group name
where name is the name of the map list identified in the map-list command, in this case, ATM.
You can create multiple map lists, but only one map list can be associated with an interface. Different map lists can be associated with different interfaces.
Following is an example of mapping a list to an interface:
interface atm4/0 ip address 131.108.168.110 255.255.255.0 map-group atm atm pvc 1 0 38 aal5snap atm pvc 2 0 39 aal5mux ip ! map-list atm ip 131.108.168.112 atm-vc 1 broadcast
The Quad OC-3c/STM-1c ATM line card maintains a count of certain errors. In addition to keeping a count of these errors, the Quad OC-3c/STM-1c ATM line card also takes a snapshot of the last VCI/VPI that caused an error. Each Quad OC-3c/STM-1c ATM line card error counter is 32 bits. Errors include the following:
Two types of show commands are available for checking system status:
You can use the following ATM show commands to display the current state of the ATM network and the connected virtual circuits:
Router# show atm vc [vcd]
Router# show atm interface atm
Router# show atm traffic
Router# show atm map
Following are descriptions and examples of the show commands that display Quad OC-3c/STM-1c ATM line card configuration information:
Router# show interfaces atm 9/0
ATM9/0 is up, line protocol is up
Hardware is CM155 OC-3c ATM
Internet address is 90.1.1.1/8
MTU 4470 bytes, sub MTU 4470, BW 155000 Kbit, DLY 80 usec, rely 255/255, load 1/255
Encapsulation ATM, loopback not set, keepalive not supported
Encapsulation(s): AAL5, PVC mode
2048 maximum active VCs, 1024 VCs per VP, 1 current VCCs
VC idle disconnect time: 300 seconds
Last input 1d14h, output 1d14h, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3970 packets input, 444640 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
3970 packets output, 444640 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
Router# show atm vc
AAL / Peak Avg. Burst
Interface VCD VPI VCI Type Encapsulation Kbps Kbps Cells Status
9/0 90 0 90 PVC AAL5-SNAP 155000 155000 94 ACTIVE
9/1 91 0 91 PVC AAL5-SNAP 155000 155000 94 ACTIVE
9/2 92 0 92 PVC AAL5-SNAP 155000 155000 94 INACTIVE
9/3 93 0 93 PVC AAL5-SNAP 155000 155000 94 ACTIVE
Router# show atm vc 1 ATM9/0: VCD: 1, VPI: 0, VCI: 64, etype:0x0, AAL5 - LLC/SNAP, Flags: 0xC30 PeakRate: 622000, Average Rate: 622000, Burst Cells: 94, VCmode: 0x0 OAM DISABLED, InARP DISABLED InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0 InPRoc: 0, OutPRoc: 0, Broadcasts: 0 InFast: 0, OutFast: 0, InAS: 0, OutAS: 0 OAM F5 cells sent: 0, OAM cells received: 0
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(13)GS1 EARLY DEPLOYMENT, REL. SOFTWARE (fc1) Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Fri 22-May-98 13:32 Image text-base: 0x600108E0, data-base: 0x60576000 ROM: System Bootstrap, Version 11.2(9)GS5, [tamb 176] EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) BOOTFLASH: GS Software (GSR-BOOT-M), Version 11.3(2.1)CI, MAINTENANCE INTERIM SOFTWARE wombat uptime is 1 day, 15 hours, 29 minutes System restarted by reload System image file is "annex1/amsingh/qoc3/gsr-p-mz.0522", booted via tftp from 223.255.254.254 cisco 12012/GRP (R5000) processor (revision 0x01) with 131072K bytes of memory. R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache) Last reset from power-on 1 Clock Scheduler Card(s) 1 Quad-port OC3c ATM controller (4 ATM). 1 Ethernet/IEEE 802.3 interface(s) 4 ATM network interface(s) 507K bytes of non-volatile configuration memory. 20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0
router# show diag 9
SLOT 9 (RP/LC 9 ): 4 port ATM Over SONET OC-3c/STM-1 Single Mode
MAIN: type 39, 00-0000-00 rev 71 dev 16777215
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-3033-02 rev 71 ver 2
HW version 1.0 S/N CAB02180072
MBUS: MBUS Agent (1) 73-2146-07 rev B0 dev 0
HW version 1.2 S/N CAB020800D7
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.35 (RAM) (ROM version is 01.33)
Using CAN Bus A
ROM Monitor version 00.0D
Fabric Downloader version used 00.0D (ROM version is 00.0D)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:11 (1d15h ago)
DRAM size: 33554432 bytes
FrFab SDRAM size: 33554432 bytes
ToFab SDRAM size: 33554432 bytes
Router# show atm traffic 3983 Input packets 3985 Output packets 0 Broadcast packets 0 Packets received on non-existent VC 0 Packets attempted to send on non-existent VC 0 OAM cells received 0 OAM cells sent
Router# show running-config Building configuration... Current configuration: ! version 11.2 no service pad no service password-encryption no service udp-small-servers no service tcp-small-servers service download-fl ! hostname wombat ! enable password mad ! ip host kau-hp 171.71.45.44 255.255.255.255 ip host maypo 171.69.30.28 255.255.255.255 ! interface Ethernet0 ip address 20.5.7.0 255.255.0.0 ! interface ATM9/0 ip address 90.1.1.1 255.0.0.0 atm clock INTERNAL atm pvc 90 0 90 aal5snap map-group atm ! interface ATM9/1 ip address 91.1.1.1 255.0.0.0 atm clock INTERNAL atm pvc 91 0 91 aal5snap map-group atm ! interface ATM9/2 ip address 92.1.1.1 255.0.0.0 atm clock INTERNAL atm pvc 92 0 92 aal5snap map-group atm ! interface ATM9/3 ip address 93.1.1.1 255.0.0.0 atm clock INTERNAL atm pvc 93 0 93 aal5snap map-group atm ! map-list atm ip 90.1.1.2 atm-vc 90 broadcast ip 91.1.1.2 atm-vc 91 broadcast ip 92.1.1.2 atm-vc 92 broadcast ip 93.1.1.2 atm-vc 93 broadcast ! end
Router# show sar txpools interface atm
ATM 2/0: SAR TxPool 0: TxPool Size 128kb
No VCs assigned
ATM 2/0: SAR TxPool 1: TxPool Size 128kb
No VCs assigned
ATM 2/0: SAR TxPool 2: TxPool Size 128kb
No VCs assigned
ATM 2/0: SAR TxPool 3: TxPool Size 128kb
AAL / Peak Avg. Burst Out Out
VCD VPI VCI Type Encap Kbps Kbps Cells Pkts Bytes
20 0 20 PVC AAL5-SNAP 155000 155000 94 206811 724990861
ATM 2/1: SAR TxPool 0: TxPool Size 128kb
No VCs assigned
ATM 2/1: SAR TxPool 1: TxPool Size 128kb
No VCs assigned
ATM 2/1: SAR TxPool 2: TxPool Size 128kb
AAL / Peak Avg. Burst Out Out
VCD VPI VCI Type Encap Kbps Kbps Cells Pkts Bytes
21 0 21 PVC AAL5-SNAP 155000 155000 94 78240 274691027
ATM 2/1: SAR TxPool 3: TxPool Size 128kb
No VCs assigned
ATM 2/2: SAR TxPool 0: TxPool Size 128kb
No VCs assigned
ATM 2/2: SAR TxPool 1: TxPool Size 128kb
AAL / Peak Avg. Burst Out Out
VCD VPI VCI Type Encap Kbps Kbps Cells Pkts Bytes
22 0 22 PVC AAL5-SNAP 155000 155000 94 69412 241183985
ATM 2/2: SAR TxPool 2: TxPool Size 128kb
No VCs assigned
ATM 2/2: SAR TxPool 3: TxPool Size 128kb
No VCs assigned
ATM 2/3: SAR TxPool 0: TxPool Size 128kb
No VCs assigned
ATM 2/3: SAR TxPool 1: TxPool Size 128kb
No VCs assigned
ATM 2/3: SAR TxPool 2: TxPool Size 128kb
No VCs assigned
ATM 2/3: SAR TxPool 3: TxPool Size 128kb
AAL / Peak Avg. Burst Out Out
VCD VPI VCI Type Encap Kbps Kbps Cells Pkts Bytes
23 0 23 PVC AAL5-SNAP 155000 155000 94 64404 221697639
This section provides examples of Quad OC-3c/STM-1c ATM line card configurations.
In the following example, PVC 5 is created on ATM interface 3/0 by means of LLC/SNAP encapsulation over AAL5. ATM interface 3/0 (IP address 1.1.1.1) connects with the ATM interface (IP address 1.1.1.5) at the other end of the connection.
interface atm 3/0 ip address 1.1.1.1 255.255.255.0 atm pvc 5 0 10 aal5snap map-group atm map-list atm ip 1.1.1.5 atm-vc 5 broadcast
The following is an example of a typical ATM configuration for a PVC:
interface atm4/0 ip address 1.1.1.112 255.255.255.0 map-group atm atm maxvc 512 atm pvc 1 1 1 aal5snap atm pvc 2 2 2 aal5snap atm pvc 6 6 6 aal5snap atm pvc 7 7 7 aal5snap clns router iso-igrp comet ! router igrp 109 network 1.1.0.0 ! ip domain-name CISCO.COM ! map-list atm ip 131.108.168.110 atm-vc 1 broadcast clns 47.0004.0001.0000.0c00.6e26.00 atm-vc 6 broadcast
For additional configuration examples, refer to the appropriate Cisco IOS software configuration publications in the section "Important Information."
The following example shows two routers, each containing an Quad OC-3c/STM-1c ATM line card, connected directly back to back with a standard cable. This arrangement allows you to verify the operation of the ATM port and to directly link the routers in order to build a larger node. To connect two routers, attach the cable to the ATM port on the line card in each router.
First router:
interface ATM3/0 ip address 1.0.0.1 255.0.0.0 map-group atm-in atm clock internal atm pvc 1 1 5 aal5snap ! map-list atm-in ip 1.0.0.2 atm-vc 1 broadcast
Second router:
interface ATM3/0 ip address 1.0.0.2 255.0.0.0 map-group atm-in atm pvc 1 1 5 aal5snap ! map-list atm-in ip 1.0.0.1 atm-vc 1 broadcast
By default, the Quad OC-3c/STM-1c ATM line card expects a connected ATM switch to provide transmit clocking. To specify that the Quad OC-3c/STM-1c ATM line card generate the transmit clock internally for SONET operation, add the atm clock internal command to your configuration.
The following example configures transmit buffer pools on various ports on a Quad OC-3c/STM-1c ATM line card and assigns VCs to specific buffer pools:
router(config)#interface atm 2/0 router(config-if)#sar txpool 4 router(config-if)#sar vc 20 txpool 3 router(config-if)#interface atm 2/1 router(config-if)#sar txpool 4 router(config-if)#sar vc 21 txpool 2 router(config-if)#interface atm 2/2 router(config-if)#sar txpool 4 router(config-if)#sar vc 22 txpool 1 router(config-if)#interface atm 2/3 router(config-if)#sar txpool 4 router(config-if)#sar vc 23 txpool 0 router(config-if)#sar vc 23 txpool 1 router(config-if)#sar vc 23 txpool 2 router(config-if)#sar vc 23 txpool 3
The following example configures transmit queue limits on a Quad OC-3c/STM-1c ATM line card interface:
router(config)#interface atm 4/1 router(config-if)#tx-queue-limit 400
You can use the following debug commands to aid in solving ATM network problems:
After you use a debug command, turn off debugging with the no debug command.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
This class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
This is a class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual.
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Posted: Mon Jan 3 17:41:54 PST 2000
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