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Product Number: CHOC-12/STM-4 IR-SC STS3/STM1 (=)
This publication contains instructions for installing and configuring the CHOC-12/STS3 line card on a 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.
The Cisco 12000 series router must have at least one clock and scheduler card (CSC) installed that provides a one-quarter bandwidth to support the requirements of the 6DS3-SMB or 12DS3-SMB line cards. Refer to the appropriate Cisco 12000 series router Installation and Configuration Guide for more information about 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 line card. 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 6DS3-SMB and 12DS3-SMB line cards consist 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).
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 Quad OC-3c/STM-1c 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 CHOC-12/STM-4 IR-SC STS3/STM1 line card (shown in Figure 1) provides the Cisco 12000 series product line with 4 ports of high-density STS-3/STM1 service through a single 622-Mbps OC-12/STM4 interface. The card interfaces with the Cisco 12000 product line's switch fabric and provides one OC-12/STM4 duplex SC single-mode intermediate-reach SONET/SDH connection.
Each line card has the following main components:
Figure 2 shows a high-level block diagram of the CHOC-12/STM-4 IR-SC STS3/STM1 line card.
The single-mode transceiver in the intermediate-reach version of the line card provides a full-duplex, 622-Mbps, 1300-nm, laser-based SONET compliant interface. With a power rating of -15 to -8 dBm (transmitting) 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 burst buffer (512 KB) prevents packets from being dropped when there are instantaneous increases in the number of back-to-back small packets being transmitted at OC-12/STM4 line rates. Burst buffers provide 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 silicon queuing engine verifies the packet's integrity by checking the cyclic redundancy check (CRC) value, transfers the IP packet to buffer memory, then tells the Layer 3 switching accelerator the location of the IP packet. At the same time, the forwarding processor tells the silicon queuing engine where to place the IP packet in the virtual output queue.
Each virtual output queue represents a 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 then to the transmit interface.
The silicon queuing engine controls the placement of IP packets in buffer memory, as well as the 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 increase 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 on the Internet at 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. An ASIC is used to execute this access process as rapidly as possible.
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 information in the forwarding table based on the latest information in the routing table. The forwarding processor is an R5000 RISC processor operating at 250 MHz.
Once it makes the forwarding decision, the forwarding processor notifies the silicon queuing engine, which 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 and scheduler card (CSC). The scheduler grants the request 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 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 to install and configure the CHOC-12/STM-4 IR-SC STS3/STM1 line card and contains safety and ESD-prevention guidelines. The following sections describe prerequisites and preparation information:
We recommend that you do the following before beginning any of the procedures in this publication:
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 CHOC-12/STM-4 IR-SC STS3/STM1 line card is compatible with any Cisco 12000 series router that is operating with the following system software: Cisco IOS Release 11.2(14)GS3, or a later release of Cisco IOS Release 11.2, 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(14)GS3, is displayed in italics.
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(14)GS3, RELEASE SOFTWARE (fc1) Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Fri 20-Nov-98 15:03 Image text-base:0x60010900, data-base:0x606C6000 ROM:System Bootstrap, Version 11.2(9)GS5, RELEASE SOFTWARE (fc1) BOOTFLASH:GS Software (GSR-BOOT-M), Version 11.2(9)GS6, RELEASE SOFTWARE (fc1)
The show diag command displays the line card microcode version, as in the following example:
Router# show diag
SLOT 0 (RP/LC 0): 1 port SONET OC12 channelized to STS3 Single Mode
MAIN: type 44, 800-4189-01 rev 73 dev 0
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-3363-01 rev 81 ver 1
HW version 1.1 S/N CAB0216019M
MBUS: MBUS Agent (1) 73-2146-07 rev B0 dev 0
HW version 1.2 S/N CAB0216019M
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 00.0F
Fabric Downloader version used 00.10 (ROM version is 00.10)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:11 (00:12:46 ago)
DRAM size: 67108864 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 Cisco IOS Release 11.2(14)GS3, 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.
Your CHOC-12/STM-4 IR-SC STS3/STM1 line card should have a hardware revision level of 73-3363-03. The hardware revision number is printed on a label affixed to the component side of the card. You can also display the hardware revision number using the show diag command.
The SONET specification for fiber-optic transmission defines single-mode fiber. 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 an OC-12/STM4 signal 9.3 miles (15 km) or more. If your environment requires the signal to travel close to the typical maximum distance (as listed in ), 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) |
| 1dBm = decibels per milliwatt 2nm = nanometer |
The 6DS3-SMB and 12DS3-SMB line cards are available with the memory options described in Table 1 and Table 2. Refer to the Cisco 12000 Series Gigabit Switch Router Memory Replacement Instructions publication 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) |
Table 2 lists the available configurations and associated product numbers of SDRAM DIMMs for upgrading transmit and receive buffer memory on Cisco 12000 series GSR line cards.
| Packet Memory Size | DIMM Modules1 | Cisco Product Number |
64 MB | 2 32-MB DIMMs | MEM-LC-PKT-642 |
128 MB | 2 64-MB DIMMs | MEM-LC-PKT-1283 |
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 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:
In the Cisco 12012, line cards are installed in the upper card cage (see Figure 5). The upper card cage has 12 user-configurable slots that support a combination of line cards and a Gigabit Route Processor (GRP). The right-most slot in the upper card cage supports a nonconfigurable alarm card. You can insert the GRP into any line card slot, although Figure 5 shows the GRP in slot 0.
Figure 6 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 optical-fiber interface cable to connect your Cisco 12000 series router to another router or ADM. In general, single-mode cables are yellow.
For SONET/SDH single-mode optical-fiber connections, use one duplex SC-type connector (see Figure 7) or two simplex SC-type connectors (see Figure 8).
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 9.
 | 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 (single mode). |
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 11 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 procedure 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.)
 | 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, therefore 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 seamless maintenance method 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. Then the system brings online only those interfaces that match the current configuration and were previously configured as up. You must configure all other interfaces with the configure command. (For CHOC-12/STM-4 IR-SC STS3/STM1 line card configuration information, refer to the section "Configuring the CHOC-12/STM-4 IR-SC STS3/STM1 Line Card,".)
| Caution The system might 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 to 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. (see Figure 13)
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 12 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.
(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. The Gigabit Switch Router supports online line card insertion and removal, which means that you can remove and replace line cards while the system remains powered up. To remove a line card, use Figure 13 as a reference and perform the following procedure:
Step 1 Attach an antistatic 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 13).
(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.
Step 3 Use a 3/16-inch flat-blade screwdriver to loosen the captive screw at each end of the line card faceplate. (See Figure 13a.)
| Caution When you are removing 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. A card that is only partially connected to the backplane can halt the system. |
Step 4 Simultaneously pivot the ejector levers away from each other to release the line card from the backplane connector. (See Figure 13b.)
Step 5 Grasp each ejector lever and pull the line card halfway out of the slot.
Step 6 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 13c.) Avoid touching the line card printed circuit board, components, or any connector pins.
Step 7 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 8 If the line card slot is to remain empty, install a line card blank (Cisco part number 800-03004-01) 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 the captive screws.
A line card slides into any available line card slot and connects directly to the backplane.
| Caution The system might 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 task 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 antistatic 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 verify that the line card's interface cable is long enough for you to connect the line card to 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 line card; position the line card for insertion into the card cage slot and guide it in until it connects to the backplane. 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 14.)
| Caution When you are installing a line card, always use the ejector levers to ensure that the card is correctly aligned with the backplane connector, that the card connector pins make contact with the backplane in the correct order, and that 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. This ensures proper EMI shielding and prevents the line card from becoming partially dislodged from the backplane. (These screws must be tightened to meet EMI specifications.)
| Caution To ensure that there is 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 12):
(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:
The following procedure assumes that you 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:
(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, connect each interface cable to the intended port. (See Figure 15a)
Step 4 Carefully press the interface cable into the cable clip on the end of the cable standoff. Avoid any kinks or sharp bends in cable. Excessive bending in an interface cable can degrade performance. (See Figure 15b)
Step 5 Proceeding upward, carefully press the interface cable into the cable-routing clips along the base of the line card cable-management bracket (See Figure 15c).
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 to 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 the site log, 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 16a).
Step 4 Proceeding upward, remove the interface cable from the cable clip on the end of the cable standoff (see Figure 16b).
Step 5 Remove the interface cable from the cable-routing clips along the base of the line card cable-management bracket (see Figure 16c).
Repeat Step 3 through Step 5 for any other interface cables on the line card ports.
Step 6 Loosen the captive installation screw at each end of the line card cable-management bracket.
Step 7 Remove the bracket from the line card.
After you have installed the line card and connected the interface cables, verify that the line card works properly by checking the LEDs on the faceplate of the line card. Each CHOC-12/STM-4 IR-SC STS3/STM1 line card provides the following two types of LEDs (see Figure 1 near the beginning of the document) for monitoring the operating status of the line card:
During a typical line card boot process
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 tell you the state of the line 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 to read.
As it boots, the line card displays a sequence of messages that are similar to those shown in Table 3.
| 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 You may not be able to read this display, because it occurs briefly. | 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 | 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 |
FABL | The line card is waiting for the fabric downloader to load.3 | GRP IOS |
FABL | The fabric downloader is being loaded into line card memory. | GRP IOS |
FABL | The fabric downloader is being launched. | GRP IOS |
FABL | The fabric downloader is running. | GRP IOS |
IOS | The Cisco IOS software is being downloaded into line card memory. | GRP IOS |
IOS | The Cisco IOS software is being launched. | GRP IOS |
IOS | The Cisco IOS software is running. | GRP IOS |
IOS | The line card is enabled and ready for use. | GRP IOS |
| 1The LED sequence shown in Table 3 might occur too quickly for you to view, therefore, this sequence shows 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 4 lists other messages 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. You may not be able to read this display, because it occurs briefly. | MBus controller |
MAL | Card malfunction. | GRP |
PWR | Card not powered. | GRP |
PWR | Card powered. | GRP |
IN | In reset mode. | 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 images complete. | GRP |
MSTR | Waiting for mastership determination. | GRP |
CLOK | Waiting for slot clock configuration. | GRP |
CLOK | Slot clock configuration done. | GRP |
FABL | Fabric downloader loaded. | 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 is 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 CHOC-12/STM-4 IR-SC STS3/STM1 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 State | Explanation | ||
| Active | Carrier | Rx Pkt | |
Off | Off | Off | Card is off. |
On | Off | Off | Card is on. |
On | On | Off | Packets not being received. |
On | On | On | Line card is functioning normally. |
The Rx Pkt LED flashes when receiving data. The Rx Pkt LED indicates when any of the four channelized POS interfaces receives a packet.
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 (see "Configuring the CHOC-12/STM-4 IR-SC STS3/STM1 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 registers the CHOC-12/STS3 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 CHOC-12/STM-4 IR-SC STS3/STM1 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 Step 3.
Step 3 If the Active LED on the CHOC-12/STM-4 IR-SC STS3/STM1 line card fails to go on, determine if the CHOC-12/STM-4 IR-SC STS3/STM1 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 CHOC-12/STM-4 IR-SC STS3/STM1 line card faceplate. Tighten the captive installation screws.
After the system reinitializes the interfaces, the Active LED on the CHOC-12/STM-4 IR-SC STS3/STM1 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 CHOC-12/STM-4 IR-SC STS3/STM1 line card and try installing it 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 CHOC-12/STM-4 IR-SC STS3/STM1 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.
The following sections provide information, with examples, for configuring and verifying the configuration. Examples are also included.
After you verify that the new CHOC-12/STM-4 IR-SC STS3/STM1 line card is installed correctly (the Active LED goes on), use the configure command to configure the new OC-12/STM4 controller. A Cisco 12000 series router identifies a controller by slot/port. For the CHOC-12/STM-4 IR-SC STS3/STM1 line card, port is always 0 and slot can be any one of the valid slot numbers (0 to 11, inclusive).
The following steps summarize a basic controller configuration for the CHOC-12/STM-4 IR-SC STS3/STM1 line card on a Cisco 12000 series router. Before using the configure command, you must enter the privileged level of the EXEC command interpreter with the enable command. The system prompts you for a password if one is set. Press Return 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 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 Router(config)#
Step 4 In global configuration mode, enter the controller configuration mode by entering the controller command and specifying an OC-12/STM-4 interface, as follows:
Router(config)# controller SONET 1/0 Router(config-controller)#
Step 5 Set the clock source to line or internal:
Router(config-controller)# [no] clock source {line | internal}
Use the no form of this command to restore the default value, which is line.
Step 6 Change the OC-12/STM4 controller loopback mode:
Router(config-controller)# [no] loopback {line | internal}
Use the no form of this command to clear the loop setting.
Step 7 Change the S1S0 bit definition:
Router(config-controller)# [no] POS flag S1S0 <0-3> Use the no form of this command to clear the loop setting.
The no shutdown command passes an enable command to the CHOC-12/STM-4 IR-SC STS3/STM1 line card. It also causes the line card to configure itself, based on the current configuration parameter values.
Step 8 Change the shutdown state to up and enable the controller:
Router(config-controller)# [no] shutdown
The no shutdown command passes an enable command to the CHOC-12/STM-4 IR-SC STS3/STM1 line card. It also causes the line card to configure itself based on the current configuration parameter values.
Table 6 shows default values for an OC-12/STM4 controller configuration of a CHOC-12/STM-4 IR-SC STS3/STM1 line card in a Cisco 12000 series router.
| Parameter | Configuration Command | Default Value |
|---|---|---|
Alarm reporting | [no] POS report [b3-tca | pais | plop | prdi] | b3-tca, plop |
C2 byte | [no] POS flag C2 <0-255> | 0x00 |
clock source | [no] clock source [internal | line] | line |
Cyclic redundancy check | [no] crc [16 | 32] | crc 16 |
keepalive | [no] keepalive <n> | 10 sec |
loopback | [no] loopback [internal | line] | no loopback |
Maximum transmission unit (MTU) | [no] mtu bytes | 4470 bytes |
Payload scrambling | [no] POS scramble-atm | no scrambling |
POS framing | [no] POS framing [SDH | SONET] | SONET |
S1S0 bits | [no] POS flag S1S0 <0-3> | 0 |
J0 byte | [no] POS flag J0 <0-255> | 0xCC |
Alarm reporting | [no] POS report [b1-tca | b2-tca| lais | lrdi | sd-ber | sf-ber | slof | slos]
| sf-ber, slos, slof , b1-tca, b2-tca |
shutdown | [no] shutdown | no shutdown |
thresholds | [no] POS threshold b1-tca <3-9> [no] POS threshold b2-tca <3-9> [no] POS threshold sd-ber <3-9> [no] POS threshold sf-ber <3-9> | b1-tca=6 b2-tca=6 sd-ber=6 sf-ber=3 |
The following example shows a typical OC-12/STM4 controller configuration for the CHOC-12/STM-4 IR-SC STS3/STM1 line card:
Router> Router> enable Password: Router# Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller sonet 1/0 Router(config-controller)# clock source line Router(config-controller)# no loopback Router(config-controller)# no shutdown ***** The next two lines are log messages on the console ***** %CONTROLLER-3-UPDOWN: controller sonet 1/0, changed state to up Router(config-controller)#exit Router(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console
To verify the above controller configuration, use show controllers EXEC command, as in the following example:
Router# show controllers . <snip> . sonet Show sonet controller state . Router# show controllers sonet 4/0 SONET4/0 SECTION LOF = 0 LOS = 0 BIP(B1) = 0 LINE AIS = 0 RDI = 0 FEBE = 0 BIP(B2) = 0 Active Defects:None Active Alarms: None Alarm reporting enabled for:SF SLOS SLOF B1-TCA B2-TCA APS COAPS = 0 PSBF = 0 State:PSBF_state = False ais_shut = FALSE Rx(K1/K2):00/00 S1S0 = 00, C2 = 00 BER thresholds: SF = 10e-3 SD = 10e-6 TCA thresholds: B1 = 10e-6 B2 = 10e-6
After you verify the OC-12/STM4 controller configuration, you can configure the associated STS-3/STM1 POS interfaces. Be prepared with the information you will need, such as the interface IP addresses.
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 "Important Information,".
A Cisco 12000 series router identifies an interface on the CHOC-12/STS3 line card by its chassis slot number, line card port number, and STS-3/STM1 channel number. The format is slot/port:channel. For example, the slot/port:channel# address of the first STS-3/STM1 serial interface on an CHOC-12/STS3 line card installed in line card slot 1 is 1/0:1. The port number is always 0.
The current STS-3/STM1 channel configurable parameter settings are displayed in response to the show int pos n/0:x command.
Before using the configure command, you must enter the privileged level of the EXEC command interpreter with the enable command. The system prompts you for a password if one is set. Press Return after each configuration step unless otherwise noted.
Use the following procedure to configure the CHOC-12/STS3 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,".
Step 2 Check the status of each port or channel 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,".
Step 3 Enter configuration mode and specify that the console terminal will be the source of the configuration subcommands:
Router# configure terminal Router(config)#
Step 4 In configuration mode, select an interface for configuration by entering the interface pos command:
Router(config)# interface pos slot/port:channel Router(config)#
Step 5 In interface configuration mode, enable STS-3/STM1 payload scrambling by entering the POS scramble-atm configuration subcommand:
Router(config-if)# POS scramble-atm Router(config)#
Step 6 Assign an IP address and subnet mask to the interface with the ip address configuration subcommand:
Router(config-if)# ip address 10.1.2.3 255.0.0.0 Router(config-if)#
Step 7 Enable keepalive messages every <n> seconds:
Router(config-if)# keepalive <n> Router(config-if)#
Keepalive messages should be enabled on CHOC-12/STM-4 IR-SC STS3/STM1 interfaces.
Step 8 Change the shutdown state to UP and enable the interface:
Router(config-if)# no shutdown Router(config-if)#
The no shutdown command passes a channel enable command to the CHOC-12/STS3 line card. It also causes the channel to configure itself based on the current configuration parameter values.
Step 9 Add any other configuration subcommands required to enable routing protocols and adjust the interface characteristics.
Step 10 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 11 Write the new configuration to memory:
Router# copy running-config startup-config
The system displays an OK message when the configuration is stored.
After you have completed your configuration, you can check it by using show commands. For an explanation of show commands, see the section "Using Show Commands to Check System Status".
The following example shows a typical STS-3/STM1 serial interface on the OC-12/STM-4 controller configuration for the CHOC-12/STM-4 IR-SC STS3/STM1 line card.
Router# Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config-if)# interface pos 1/0:1 Use the config-if mode to configure IP address and [no]shutdown. Router(config-if)# ip addr 1.1.1.11 255.255.255.0 Router(config-if) Router(config-if)# no scramble Router(config-if)# keepalive 10 Router(config-if)# no shutdown Router(config-if)# exit Router(config)# exit Router#
To verify the above interface configuration, use the show interfaces and show controllers commands, as in the following examples:
Router# show interfaces POS6/0:1
POS6/0:1 is up, line protocol is up
Hardware is Packet over SONET
Internet address is 12.1.1.2/24
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec, rely 255/255, load 1/255
Encapsulation HDLC, crc 32, loopback not set
Keepalive not set
Scramble disabled
Last input 21:39:58, output 21:39:58, output hang never
Last clearing of "show interface" counters 00:00:04
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 controller pos 6/0:1 details
POS6/0:1
PATH
AIS = 0 RDI = 1 FEBE = 14 BIP(B3) = 42
LOP = 0 NEWPTR = 2 PSE = 0 NSE = 0
Active Defects:None
Active Alarms: None
Alarm reporting enabled for:PLOP B3-TCA
PATH TRACE BUFFER :UNSTABLE
Remote hostname :
Remote interface:
Remote IP addr :
Remote Rx(K1/K2): / Tx(K1/K2): /
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
TCA thresholds: B3 = 10e-6
This section describes configuration examples that use the CHOC-12/STM-4 IR-SC STS3/STM1 line cards. Figure 17 shows a possible deployment of the CHOC-12/STM-4 IR-SC STS3/STM1 line card in a network with four Cisco routers connected on an SDH STM-16 ring with Add-Drop Multiplexers (ADMs). The ADM provides the clock source in this configuration. If you do not see the local router set to clock source internal, then the remote side is set to the default clock source line.
The Cisco 12000 series router "A" contains a CHOC-12/STM-4 IR-SC STS3/STM1 line card in slot 1. Channel 1 of this card is unused. Channels 2 and 3 are connected to channels 2 and 3 of a CHOC-12/STM-4 IR-SC STS3/STM1 line card in Cisco 12000 series router "B". Channel 4 of the CHOC-12/STM-4 IR-SC STS3/STM1 line card in router "A" is connected to an STM1 POS-PA in a 7200 series router. Channels 2 and 3 share a common IP address through the use of an IP un-numbered interface specification and load share on a per-packet basis.
The following configuration is for channels 2 and 3 on the CHOC-12/STM-4 IR-SC STS3/STM1 line card on the Cisco 12000 series router "A" shown in Figure 17:
Router# configure terminal Router(config)# interface pos 1/0:2 Router(config-if)# ip address 1.1.1.1 255.255.255.0 Router(config-if)# keepalive 10 Router(config-if)# crc 16 Router(config-if)# ip load-sharing per-packet Router(config-if)# pos scramble-atm Router(config-if)# no shutdown Router(config-if)# exit Router(config)# interface pos 1/0:3 Router(config-if)# ip unnumbered pos 1/0:2 Router(config-if)# keepalive 10 Router(config-if)# crc 16 Router(config-if)# ip load-sharing per-packet Router(config-if)# pos scramble-atm Router(config-if)# no shutdown Router(config-if)# end
For evaluation purposes, you can configure the CHOC-12/STM-4 IR-SC STS3/STM1 line card back-to-back as depicted in Figure 18. In this configuration, CHOC-12/STM-4 IR-SC STS3/STM1 line card functionality and features can be validated without ADM in between. Set the local clock source to internal and set the remote clock source to line, (or reversed), as shown in Figure 18. If you can pass packets properly in a back-to-back configuration, then you can expect them to operate properly with the ADM.
Router# configure terminal Router(config)# interface pos 1/0:2 Router(config-if)# ip address 1.1.1.1 255.255.255.0 Router(config-if)# keepalive 10 Router(config-if)# crc 16 Router(config-if)# pos scramble-atm Router(config-if)# no shutdown Router(config-if)# exit Router(config)# interface pos 1/0:3 Router(config-if)# ip unnumbered pos 1/0:2 Router(config-if)# ip load-sharing per-packet Router(config-if)# keepalive 10 Router(config-if)# crc 16 Router(config-if)# pos scramble-atm Router(config-if)# no shutdown Router(config-if)# end
Each Cisco 12000 series line card maintains information about its configuration, traffic, errors, and so on. You can access this information by using the show commands. Following are descriptions and examples of the show commands.
Router# show interface pos 4/0:1
POS4/0:1 is up, line protocol is up
Hardware is Packet over SONET
Internet address is 1.4.1.1/24
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec, rely 255/255, load 1/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive not set
Scramble enabled
Last input 1d04h, output 00:00:08, output hang never
Last clearing of "show interface" counters 1d01h
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
3255 packets output, 768580 bytes, 0 underruns
0 output errors, 0 applique, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Router# show controllers SONET SONET6/0 SECTION LOF = 0 LOS = 0 BIP(B1) = 0 LINE AIS = 0 RDI = 0 FEBE = 0 BIP(B2) = 0 Active Defects:SD SLOF SLOS Active Alarms: SLOS Alarm reporting enabled for:SF SLOS SLOF B1-TCA B2-TCA APS COAPS = 0 PSBF = 0 State:PSBF_state = False ais_shut = FALSE Rx(K1/K2):00/00 S1S0 = 00, C2 = 00 BER thresholds: SF = 10e-3 SD = 10e-6 TCA thresholds: B1 = 10e-6 B2 = 10e-6
Router# show diags 6
SLOT 6 (RP/LC 6 ): 1 port SONET OC12 channelized to STS3 Single Mode
MAIN: type 44, 800-4189-01 rev 72 dev 0
HW config: 0x00 SW key: FF-FF-FF
PCA: 73-3363-01 rev 80 ver 1
HW version 1.1 S/N CAB021601SX
MBUS: MBUS Agent (1) 73-2146-07 rev B0 dev 0
HW version 1.2 S/N CAB021601SX
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 00.0F
Fabric Downloader version used 00.10 (ROM version is 00.10)
Board is analyzed
Board State is Line Card Enabled (IOS RUN )
Insertion time: 00:00:11 (15:34:03 ago)
DRAM size: 67108864 bytes
FrFab SDRAM size: 33554432 bytes
ToFab SDRAM size: 33554432 bytes
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (GSR-P-M), Version 11.2(14)GS3, RELEASE SOFTWARE (fc1) Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Fri 20-Nov-98 15:03 Image text-base:0x60010900, data-base:0x606C6000 ROM:System Bootstrap, Version 11.2(9)GS5, RELEASE SOFTWARE (fc1) BOOTFLASH:GS Software (GSR-BOOT-M), Version 11.2(9)GS6, RELEASE SOFTWARE (fc1) Router uptime is 1 day, 4 hours, 56 minutes System returned to ROM by reload System restarted at 11:50:58 EST Wed Nov 25 1998 System image file is "gsr-p-mz", booted via tftp from 172.32.8.14 cisco 12012/GRP (R5000) processor (revision 0x00) with 32768K bytes of memory. R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache) Last reset from power-on 2 Clock Scheduler Card(s) 2 OC12 Channelized STS-3 POS controllers (8 POS). 1 Ethernet/IEEE 802.3 interface(s) 8 Packet over SONET network interface(s) 507K bytes of non-volatile configuration memory. 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0
Router# show running-config Building configuration... Current configuration: ! ! No configuration change since last restart ! version 11.2 no service pad service timestamps log uptime no service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname Router ! enable secret 0 010100000011111100000/ enable password 1693482 ! ip host-routing ip domain-name cisco.com ip name-server 171.69.204.11 ip name-server 171.69.209.10 ! controller sonet 7/0 ! interface Serial7/0:1 ip address 41.1.1.1 255.255.255.0 ! interface Serial7/0:2 ip address 42.1.1.2 255.255.255.0 ! interface Serial7/0:3 ip address 43.1.1.3 255.255.255.0 (Remainder of displayed text omitted from example)
The CHOC-12/STM-4 IR-SC STS3/STM1 line card supports loopback mode for the OC-12/STM-4 controller and for each of the associated STS-3/STM1 channels. Figure 19 shows data flows for the various loopback modes.
The SONET controller supports two loopback modes as shown in Figure 19:
Router(config-controller)# loopback internal
Router(config-controller)# loopback line Router(config-controller)#
The POS interface supports an internal loopback mode for diagnostic purposes. In this loopback mode, data loops from the transmit path to the receive path for the affected POS interface, at the SONET/SDH "Path" level. This loopback occurs before the four STS-3/STM-1 streams are multiplexed/demultiplexed in the STTX block. See Figure 19. This mode allows a single POS interface to be taken out of service for internal loopback testing.
In the POS interface configuration mode, set the internal loopback mode using the [no] loopback internal configuration subcommand, as in the following example :
Router(config)# interface pos 4/0:1 Router(config-if)# loopback internal
Use the no form of this command to restore the default value, which is no loopback.
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.
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current 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. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
Posted: Thu May 18 09:12:08 PDT 2000
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