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Product Numbers: LC-1OC12/POS-SM(=), LC-1OC12/POS-MM(=)
This publication contains instructions for installing and configuring the OC-12c/STM-4c Packet-Over-SONET (POS) line card on a Cisco 12000 series Gigabit Switch Router.
The following sections are included in this configuration note:
For additional descriptions of interface subcommands and additional configuration options, refer to the publications listed in the section "If You Need More Information."
This section contains important information about additional documentation, Cisco IOS software configuration, safety, and technical support. This section 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 Information 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.
The following are common Packet-Over-SONET terms and acronyms for your reference:
Point-to-Point Protocol (PPP) was designed as a standard method of communicating over point- to-point links. Initial deployment has been over short local lines, leased lines, and plain-old-telephone-service (POTS) (also called basic telephone service) by users of modems. As new packet services and higher speed lines are introduced, PPP can be easily deployed in these environments as well. PPP treats SONET/SDH transport as octet-oriented synchronous links. SONET/SDH links are full-duplex by definition. PPP presents an octet interface to the physical layer.
The Synchronous Optical Network (SONET) is an octet-synchronous multiplex scheme that defines a family of standard rates and formats. Electrical specifications have been defined for single-mode fiber, multimode fiber, and CATV 75-ohm coaxial cable. (The OC-12c/STM-4c POS line card allows transmission over single-mode and multimode optical fiber.) The transmission rates are integral multiples of 51.840 Mbps. The following transmission multiples are currently specified and commonly used:
The Packet-Over-SONET specification is primarily concerned with the use of PPP encapsulation over SONET/SDH links. Because SONET/SDH is by definition a point-to-point circuit, PPP is well suited for use over these links. The octet stream is mapped into the SONET/SDH Synchronous Payload Envelope (SPE), with the octet boundaries aligned with the SPE octet boundaries. The PPP frames are located by row within the SPE payload. Because frames are variable in length, the frames are allowed to cross SPE boundaries.
The basic rate for Packet-Over-SONET is OC-3/STM-1, which is 155.520 Mbps. The available information bandwidth is 149.760 Mbps, which is the OC-3c/STM-1 SPE with section, line, and path overhead removed.
The following references discuss concepts and specifications of Packet-Over-SONET and PPP:
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 8-Port Fast Ethernet 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).
The OC-12c/STM-4c POS line card provides the Cisco 12000 series router product line with a single 622-Mbps POS interface on a single card. The card interfaces with the Cisco 12000 series router's switch fabric and provides one OC-12c/STM-4cc 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.
Each line card has the following main components:
Figure 1 shows a high-level block diagram of the OC-12c/STM-4c POS line card; Figure 2 shows front and rear views of the card.
The single-mode transceiver provides a full-duplex, 622-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 transceiver. The single-mode interface meets both IEC 825 and CDRH Class I safety standards.
The multimode transceiver provides a full-duplex, 622-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 burst buffer (512 KB) prevents the dropping of packets when there are instantaneous increases in the number of back-to-back small packets being transmitted at OC-12c/STM-4c 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 can support delays comparable to the longest round trip delays measured in the Internet at OC-12c/STM-4c 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 Cisco Express Forwarding (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 located on the GRP. The line card MBus 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 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 OC-12/STM-4 POS line card. This section also contains safety and ESD-prevention guidelines to help you avoid injuring yourself or damaging the equipment.
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 line card. If you need additional equipment, contact your service representative for ordering information.
The OC-12c/STM-4c POS line card is compatible with any Cisco 12000 series router that is operating with the following system software: Cisco IOS Release 11.2(9) 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(9), is displayed in italics.
Router> show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(9)GS4, EARLY DEPLOYMENT, REL. SOFTWARE (fc1) Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Tue 25-Nov-97 15:35 Image text-base: 0x60010900, data-base: 0x60580000 (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 ): 4 Port Packet Over SONET OC-3c/STM-1 Single Mode
MAIN: type 33, 800-2389-01 rev 71 dev 16777215
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-2275-03 rev 75 ver 3
HW version 1.1 S/N 04536583
MBUS: MBUS Agent (1) 73-2146-06 rev 73 dev 0
HW version 1.1 S/N 04541364
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.27 (RAM) using CAN Bus A
ROM Monitor version 00.03
Fabric Downloader version used 00.0D (ROM version is 00.0B)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:14 (00:09:49 ago)
DRAM size: 33554432 bytes
FrFab SDRAM size: 33554432 bytes
ToFab SDRAM size: 16777216 bytes
. . .
SLOT 5 (RP/LC 5 ): Route Processor
MAIN: type 19, 65535-16777215-255 rev V7 dev 16777215
HW config: 0x00 SW key: FF-FF-FF
PCA: 65535-16777215-255 rev 84 ver 2
HW version 1.2 S/N 04541474
MBUS: MBUS Agent (1) 73-2146-06 rev 73 dev 0
HW version 1.1 S/N 04541474
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.27 (RAM) using CAN Bus A
Board is analyzed
Board State is IOS Running (IOS UP )
Insertion time: 00:00:10 (6d22h ago)
If the displays indicate that the running system software is a version earlier than Release 11.2(9) or that the running GRPmicrocode 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 OC-12c/STM-4c POS line card should have a hardware revision level of 73-2184-03 Rev. B0 for single mode and 73-2419-03 Rev. B0 for multimode. The hardware revision number is printed on a label affixed to the face of the card.
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 an OC-12c/STM-4c signal 15 km or more, and good quality multimode fiber can carry the signal up to 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 OC-12c/STM-4c POS line card is available with the memory options described in Table 2 . Refer to the publication Cisco 12000 Series Gigabit Switch Router Memory Replacement Instructions for installation procedures if you are upgrading or replacing line card memory.
| Product Option | Description |
|---|---|
MEM-DFT-GRP/LC-64 | 64 MB (default) |
MEM-GRP/LC-128 | 128 MB (orderable upgrade) |
MEM-GRP/LC-256 | 256 MB (orderable upgrade) |
This section describes the line card slot locations in the following Cisco 12000 series routers:
The OC-12c/STM-4c POS line card can be installed in any line card slot in a Cisco 12000 series router. Before installing your line card into the router, verify that a line card slot is available.
Figure 4 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 GSR. The Cisco 12012 GSR upper card cage contains 12 slots that accommodate the following types of cards in the quantities indicated:
Figure 5 shows the location of the line card slots in the Cisco 12008 GSR. The Cisco 12008 GSR 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. Cables are available from the following cable vendors: AMP, Anixter, AT&T, Red-Hawk, and Siemens.
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 Invisible laser radiation can be emitted from the aperture of the port when no cable is connected. Avoid exposure to laser radiation and do not stare into open apertures. |
| Warning Class 1 laser product. |
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.
 | Caution Do not use the cable-management bracket as a handle to pull out or push in the line card. The cable-management bracket is designed to hold the interface cables and may break if you use the bracket to push, pull, or carry the line card after it is removed from the GSR. |
This section describes the procedures for installing or replacing a Cisco 12000 series line card. (Refer to the section "Guidelines for Line Card Removal and Installation" before removing a line card while power to the system is on.) See Figure 11.
| 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 a line card is reinstalled, 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 OC-12c/STM-4c POS line card configuration information, refer to the section "Configuring the Interfaces on the OC-12c POS 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 firmly seat the card in its slot. The ejector levers align and seat the card connectors in the backplane. Failure to use the ejector levers to insert the line card properly can disrupt the order in which the pins make contact with the backplane.
Use the ejector levers when removing a line card to ensure that the board 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.
If you are replacing a failed line card, remove the existing card first, and then install the new line card in the same slot. If a vertical cable-management bracket is attached to the card, you may want to remove it as well; for instructions, see the section "OC-12c/STM-4c POS Interface Cables and the Cable-Management System," later in this document.
Using Figure 11 as a reference, perform the following procedure to remove a line card:
Step 1 Disconnect the line card's cables from the interface ports.
Step 2 Loosen the captive installation screws at the ends of the line card faceplate.
| Caution Always use the ejector levers to remove or install a line card. Failure to do so can cause erroneous system error messages, indicating a board failure. |
Step 3 Simultaneously push the ejector levers away from each other to release a line card from the backplane connector.
Step 4 Using the ejector levers, begin pulling the line card straight out of the slot.
Step 5 Finish removing the card by pulling it out of the card cage as shown in Figure 11. Avoid touching the board or any connector pins.
Step 6 Place the removed line card on an antistatic mat or foam pad, or place it in an antistatic bag if you will return it to the factory.
A line card slides into any available line card slot and connects directly to the backplane. If you need to attach the vertical cable-management bracket to the card, see the instructions in the section "OC-12c/STM-4c POS Interface Cables and the Cable-Management System," later in this document.
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 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.
Step 3 Hold the line card by both edges of its card carrier and guide the carrier into the slot. Avoid touching the card or any connector pins.
| Caution To prevent ESD damage, handle line cards by the card carrier edges only. |
Step 4 Carefully slide the line card into the slot until the back of the faceplate makes contact with the ejector levers, then stop. Make sure the ejector lever hooks catch the lip of the card cage. (See Figure 12.)
| Caution Always use the ejector levers when installing or removing line cards. A card that is partially seated in the backplane will cause the system to hang and subsequently crash. |
Step 5 Simultaneously push both ejector levers toward each other until they are perpendicular to the faceplate.
Step 6 Tighten the captive screw on each end of the line card faceplate to ensure proper EMI shielding and to 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. |
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 OC-12c/STM-4c POS line card provides two types of LEDs for monitoring the operating status of the line card.
Figure 2 shows the location of the LEDs.
During a typical line card boot process
To verify that the line card is working properly, perform the following operational checks:
There are two, four-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 3.
| Message Origin | LED Display | Description |
|---|---|---|
MBus module | MROM 117 | MBus version number (version 1.17 in this example) |
Line card ROM monitor | MEM TEST | Memory test |
| LROM RUN | After memory test |
| BSS INIT | Initialize main memory for ROM |
| RST SAVE | Save reset reason register |
| IO RST | Access reset I/O register |
| EXPT INIT | Initialize interrupt handlers |
| TLB INIT | Initialize TLB |
| CACH INIT | Initialize CPU data and instruction cache |
| MEM INIT | Initialize main memory |
| LROM RDY | Ready to access download |
GRP | ROMI GET | Getting ROM images |
| FABL WAIT | Wait for load of fabric downloader |
| FABL DNLD | Loading fabric downloader |
| FABL STRT | Launching fabric downloader |
| FABL RUN | Fabric downloader launch complete |
| IOS DNLD | Downloading Cisco IOS software from GRP |
| IOS STRT | Launching Cisco IOS software on line card |
| IOS UP | Cisco IOS software running on line card |
| IOS RUN | Line card enabled |
Table 4 lists other alphanumeric LED messages displayed on the line card alphanumeric LED display.
| Message Origin | LED Display | Description |
|---|---|---|
MBus module | MRAM 117 | MBus version number when RAM is launched (version 1.17 in this example) |
GRP | MAL FUNC | Card malfunction |
| PWR OFF | Card not powered |
| PWR ON | Card powered |
| IN RSET | In reset |
| RSET DONE | Reset complete |
| MBUS DNLD | MBus agent downloading |
| MBUS DONE | MBus agent download complete |
| ROMI GET | Getting ROM images |
| ROMI DONE | Getting ROM images complete |
| MSTR WAIT | Wait for mastership determination |
| CLOK WAIT | Wait for slot clock configuration |
| CLOK DONE | Slot clock configuration complete |
| FABL LOAD | Loading fabric downloader complete |
| FABI WAIT | Wait for fabric initialization complete |
| IOS LOAD | Downloading of Cisco IOS software complete |
| BMA ERR | Cisco IOS BMA error |
| FIA ERR | Cisco IOS fabric interface ASIC configuration error |
| CARV ERR | Buffer carving failure |
| DUMP REQ | Line card requesting core dump |
| DUMP RUN | Line card core dumping |
| DUMP DONE | Line card core dump complete |
| DIAG MODE | Diagnostic mode |
| FDAG LOAD | Downloading field diagnostics |
| FDAG STRT | Launching field diagnostics |
| POST STRT | Launching power-on self-test (POST) |
| UNKN STAT | Unknown |
Next to each port on the OC-12c/STM-4c POS line card are three green LEDs: Active, Carrier, and RX Pkt. These LEDs signal the status of the port, as explained in Table 5.
| LED State1 | Explanation | ||
| Active | Carrier | RX Pkt | |
|
|
| Card is off. |
X |
|
| Card is on. |
X | X |
| Line protocol is not up. |
X | X | X | Line card is functioning normally. |
| 1X indicates the LED is on. |
The RX Pkt 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 Interfaces on the OC-12c POS Line Card" later in this publication).
If the active LED on a 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 OC-12c/STM-4c POS line card. If all of the following 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 OC-12c/STM-4c POS 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 OC-12c/STM-4c POS line card fails to go on, determine whether the OC-12c/STM-4c POS line card board connector is fully seated in the backplane. Loosen the captive installation screws, and firmly push the ejector levers toward each other until both are parallel to the OC-12c/STM-4c POS line card faceplate. Tighten the captive installation screws.
After the system reinitializes the interfaces, the Active LED on the OC-12c/STM-4c POS line card should go on. If the Active LED goes on, go to Step 5. If the Active LED does not go on, go to the next step.
Step 4 If the active LED still fails to go on, remove the OC-12c/STM-4c POS line card and try installing the OC-12c/STM-4c POS 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 Interfaces on the OC-12c POS 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 the OC-12c/STM-4c POS line card.
If you installed a new OC-12c/STM-4c POS line card or want to change the configuration of an existing interface, you must enter configuration mode. Table 6 shows the default configuration of an enabled line card. For more information, see the section "Customizing the OC-12c/STM-4c POS Line Card Configuration," later in this section.
| Parameter | Configuration Command | Default Value |
|---|---|---|
Keepalive | [no] keepalive | keepalive |
Encapsulation | encapsulation [hdlc | ppp] | hdlc |
Cisco Discovery Protocol (cdp) | [no] cdp enable | cdp enable |
Maximum transmission unit (mtu) | [no] mtu bytes | 4470 bytes |
Framing | pos framing [sdh | sonet] | SONET OC-3c |
Bandwidth | [no] bandwidth kilobits | 155000 |
SONET overhead | pos flag [c2 value] [j0 value] [s1s0 value] | c2 set to 0xcf; j0 set to 0xcc;s1s0 set to 0 |
Loop internal | [no] loop [internal | line] | No loopback |
POS SPE scrambling | [no] pos scramble-atm | no POS SPE scramble |
Cyclic Redundancy Check | crc [16 | 32] | 32 |
Clock source | clock source [internal | line] | Line |
After you verify that the new OC-12c/STM-4c POS line card is installed correctly (the Active LED goes on), use the configure command to configure the new interface. Be prepared with the information you will need, such as the interface IP address.
The following procedure is for creating a basic configuration---enabling an interface and specifying IP routing. You might also need to enter other configuration subcommands, depending on the requirements for your system configuration. For descriptions of configuration subcommands and the configuration options available, refer to the appropriate software publications listed in the section "If You Need More Information."
A Cisco 12000 series router identifies an interface address by its line card slot number and port number, in the format slot/port. For example, the slot/port address of an interface on an OC-12c/STM-4c POS line card installed in line card slot 1 is 1/0. Even though the card contains only one port, you must use the slot/port notation.
Before using the configure command, you must enter the privileged level of the EXEC command interpreter with the enable command. The system will prompt you for a password if one is set. Press the Return key after each configuration step unless otherwise noted.
Use the following procedure to configure the OC-12c/STM-4c POS line card:
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 System Status," 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 System Status," later in this document.
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 interface to configure by entering the interface command, followed by the type (pos) and slot/port (line card slot number/port number). The example that follows is for an OC-12c/STM-4c POS line card in line card slot 1:
Router(config)# interface pos 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 10.1.2.3 255.0.0.0
Step 7 Verify that HDLC encapsulation is correct for this interface. If you need to change the encapsulation, use the encapsulation command:
Router(config-if)# encapsulation encapsulation-type
where encapsulation-type is one of the keywords hdlc or ppp.
Step 8 Verify that the default value for clock source is correct. The default value is line and is used whenever clocking is derived from the network.
The command clock source internal is typically used when two Cisco 12000 series routers are connected back-to-back or are connected over dark fiber where no clocking is available. In either case, each device should have its clock source set to internal.
Router(config-if)# clock source {line | internal}
Step 9 Change the shutdown state to up and enable the interface:
Router(config-if)# no shutdown
The no shutdown command passes an enable command to the OC-12c/STM-4c POS line card. It also causes the line card to configure itself based on the previous configuration commands sent.
Step 10 Turn off keepalive messages:
Router(config-if)# no keepalive
Cisco 12000 series routers do not require keepalive messages.
Step 11 Turn off the Cisco Discovery Protocol (CDP):
Router(config-if)# no cdp enable
Cisco 12000 series routers do not require CDP.
Step 12 Turn off IP multicast fast switching:
Router(config-if)# no mroute-cache
Step 13 Set the cyclic redundancy check (CRC) value to 32 (on both devices):
Router(config-if)# crc 32
Step 14 Add any other configuration subcommands required to enable routing protocols and adjust the interface characteristics.
Step 15 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 16 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, see the section "Using Show Commands to Check System Status."
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 default values of all OC-12c/STM-4c POS line card configuration parameters to match your network environment. Perform the tasks in the following sections if you need to customize the OC-12c/STM-4c POS line card configuration:
The OC-12c/STM-4c POS interface is referred to as pos in the configuration commands. An interface is created for each OC-12c/STM-4c POS line card found in the system at reset time. To select a specific OC-12c/STM-4c interface, use the interface pos slot/port command:
Router(config)# interface pos slot/port
where slot is the number of the slot in which the OC-12c/STM-4c POS line card is installed, and port is the port number.
The pos framing command allows you to set framing to SONET OC or SDH STM. The default is SONET.
Router(config-if)# pos framing [sdh | sonet]
The pos flag command allows you to specify values for the specific elements of the frame header.
Router(config-if)# pos flag [c2 value] [j0 value] [s1s0 value]
Where
The POS scrambling command allows you to scramble the POS SPE payload. The default is no POS SPE scramble.
Router(config-if)# [no] pos scramble-atm
Each Cisco 12000 series line card maintains information about its configuration, traffic, errors, and so on. You access this information by using the show commands.
Following are descriptions and examples of the show commands that display line card information and system status:
Router# show interfaces pos 0/0
POS0/0 is administratively down, line protocol is down
Hardware is Packet over SONET
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec, rely 255/255, load 1/255
Encapsulation HDLC, crc 32, loopback not set, keepalive set (10 sec)
Scramble disabled
Last input never, output never, 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
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
router# show diag 1
SLOT 1 (RP/LC 1 ): 1 Port Packet Over SONET OC-12c/STM-4c Single Mode
MAIN: type 34, 800-2529-01 rev B0 dev 16777215
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-2184-03 rev B0 ver 3
HW version 1.1 S/N CAB014701PU
MBUS: MBUS Agent (1) 73-2146-06 rev A0 dev 0
HW version 1.1 S/N CAB01450129
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF
MBUS Agent Software version 01.27 (RAM) using CAN Bus A
ROM Monitor version 00.0C
Fabric Downloader version used 00.0D (ROM version is 00.0B)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:14 (00:09:57 ago)
DRAM size: 33554432 bytes
FrFab SDRAM size: 16777216 bytes
ToFab SDRAM size: 16777216 bytes
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(9)GS4, EARLY DEPLOYMENT, REL. SOFTWARE (fc1) Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Tue 25-Nov-97 15:35 Image text-base: 0x60010900, data-base: 0x60580000 ROM: System Bootstrap, Version 11.2(19971010:190024) [mukund-bfr_112.a 172], DEVELOPMENT SOFTWARE Maxwell uptime is 9 minutes System restarted by reload System image file is "slot0:gsr-p-mz.112-9.GS4", booted via slot0: cisco 12008/GRP (R5000) processor (revision 0x01) with 65536K bytes of memory. Processor board ID 00000000 R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache) Last reset from power-on X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. 2 four-port OC3 POS controllers (8 POS). 5 OC12 POS controllers (5 POS). 1 Ethernet/IEEE 802.3 interface(s) 13 Packet over SONET 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 0x100
Router# show running-config Building configuration... Current configuration: ! version 11.2 no service udp-small-servers no service tcp-small-servers ! hostname Maxwell ! enable secret 5 $1$ZBC0$tJO8EeP3VI769LAw.3edJ1 enable password lab ! ip host ray 172.27.136.253 ip host crusty 171.69.209.28 ip domain-name cisco.com ip name-server 171.69.209.10 clock timezone EST -5 clock summer-time EDT recurring ! interface POS0/0 no ip address shutdown crc 32 ! interface POS0/1 no ip address shutdown crc 32 ! (remainder of displayed text omitted from example)
The following is an example of configuration file commands for a Cisco 12000 series router (first router) with an OC-12c/STM-4c POS line card in slot 3 connected back-to-back with a Cisco 7500 series router (second router) with a POSIP card in slot 3:
First router:
interface pos 3/0 ip address 10.1.2.3 255.0.0.0 clock source internal no shutdown no keepalive no cdp enable no ip mroute-cache crc 32
Second router:
interface pos 3/0 ip address 10.1.2.4 255.0.0.0 clock source internal no shutdown no keepalive no cdp enable crc 32
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.
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Posted: Tue Dec 14 10:25:46 PST 1999
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