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PA-F/FD-SM and PA-F/FD-MM Full-Duplex FDDI Port Adapter Installation and Configuration
Product Numbers: PA-F/FD-MM(=), PA-F/FD-SM(=), and CAB-FMDD=
This configuration note describes the installation and configuration of the full-duplex Fiber Distributed Data Interface (FDDI) port adapters (PA-F/FD-SM and PA-F/FD-MM), which are used on the second-generation Versatile Interface Processor (VIP2) in all Cisco 7500 series routers, and in Cisco 7000 series routers using the 7000 Series Route Switch Processor (RSP7000) and 7000 Series Chassis Interface (RSP7000CI). (Refer to the section "Software and Hardware Requirements" on page 3.)
This configuration note is organized into the following sections.
The Cisco Internetwork Operating System (Cisco IOS) software running the router contains extensive features and functionality. The effective use of many of many of these features is easier if you have more information at hand. For additional information on configuring the Cisco 7000 series and Cisco 7500 series routers and VIP2, the following documentation resources are available:
Port Adapter Installation Prerequisites
This section provides software requirements, a list of parts and tools you will need to perform the port adapter installation, and safety and ESD-prevention guidelines to help you avoid injury and damage to the equipment during installation. Also included is information on the systems in which port adapters can be installed and overview information on interface specifications. The following sections discuss general information and information about port adapter installation requirements:
Software and Hardware Requirements
The full-duplex FDDI port adapters (PA-F/FD-SM and PA-F/FD-MM) require that the host Cisco 7000 series or Cisco 7500 series router is running Cisco IOS Release 11.1(6)CA, or later.
Verifying Full-Duplex Port Adapter Capability in Your Router
The PA-F/FD-SM and PA-F/FD-MM FDDI port adapters support full-duplex operation. (The PA-F-SM and PA-F-MM FDDI port adapters do not support full-duplex operation.) To determine which FDDI port adapters are installed in your system, use the show diagbus command and verify that the PA-F/FD-SM or PA-F/FD-MM port adapters are installed. (For an example of the show diagbus command, refer to the section "Using show Commands to Display Interface Information," which begins on page 29.)
If you discover that you do not have the appropriate Cisco IOS release and PA-F/FD-SM or PA-F/FD-MM full-duplex FDDI port adapters installed on your VIP2, you cannot configure your full-duplex operation. You require a minimum Cisco IOS release and PA-F/FD-MM or PA-F/FD-SM for full-duplex operation. For specific full-duplex configuration requirements, refer to the section "Configuring Full-Duplex Operation" on page 27.
You need the following tools and parts to install a port adapter. If you need additional equipment, contact a service representative for ordering information.
Following are safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring, or that uses a laser for data transmission.
The single-mode aperture port contains an FDDI laser warning label, as shown in Figure 1.
Figure 1 : Laser Warning Labels on PA-F/FD-SM
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
Use the following guidelines when working with any equipment that is connected to telephone wiring or to other network cabling:
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Port adapters and processor modules consists of printed circuit boards that are fixed in metal carriers. 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 antistatic strap during handling.
Following are guidelines for preventing ESD damage:
FDDI, which specifies a 100-Mbps, wire-speed, token-passing dual-ring network using fiber-optic transmission media, is defined by the ANSI X3.1 standard and by ISO 9314, the international version of the ANSI standard. An FDDI network comprises two token-passing fiber-optic rings: a primary ring and a secondary ring.
A ring consists of two or more point-to-point connections between adjacent stations. On most networks, the primary ring is used for data communication, and the secondary ring is used as a backup. Single attachment stations attach to one ring and are typically attached through a concentrator; Class A, or dual attachment stations (DASs), attach to both rings.
Figure 2 shows a typical FDDI configuration with both dual-attached and single-attached connections. Single attachment stations typically attach to the primary ring through a concentrator, which provides connections for multiple single-attached devices. The concentrator ensures that a failure or power down of any single attachment station does not interrupt the ring. Single attachment stations use one transmit port and one receive port to attach to the single ring. DASs (Class A) have two physical ports, designated PHY A and PHY B, each of which connects the station to both the primary and secondary rings. Each port is a receiver for one ring and a transmitter for the other. For example, PHY A receives traffic from the primary ring, and PHY B transmits to it.
Figure 2 : Typical Configuration with DAS, Concentrator, and Single Attachment
The dual rings in an FDDI network provide fault tolerance. If a station on a dual ring shuts down or fails, such as Station 3 in Figure 3, the ring automatically wraps (doubles back on itself) to form a single contiguous ring. This removes the failed station from the ring, but allows the other stations to continue operation. In Figure 3, the ring wraps to eliminate Station 3 and forms a smaller ring that includes only Stations 1, 2, and 4. A second failure could cause the ring to wrap in both directions from the point of failure, which would segment the ring into two separate rings that could not communicate with each other.
Figure 3 : DAS Station Failure and Ring Recovery Example
For example, if Station 1 in Figure 3 fails after Station 3 fails, Stations 2 and 4 will each be isolated because no path for communication exists between them. Subsequent failures cause additional segmentation.
Optical bypass switching avoids segmentation by eliminating failed stations from the ring. An optical bypass switch allows the light signal to pass directly through it, completely bypassing the failed or shut down station.
The FDDI port adapters have an optical bypass switch feature by way of a DIN connection. Optical bypass switches avoid segmentation by eliminating failed stations from the ring. During normal operation, an optical bypass switch allows the light signal to pass uninterrupted directly through itself. When a station with a bypass switch fails, the bypass switch reroutes the signal back onto the ring before it reaches the failed station, so the ring does not have to wrap back on itself.
Figure 4 shows an optical bypass switch installed at Station 1. In the normal configuration shown, Station 1 is functioning normally, so the optical bypass switch appears transparent. The switch essentially allows the signals to pass through it without interruption. However, if Station 1 fails, the optical bypass switch enables the bypassed configuration shown on the right in Figure 4.
Figure 4 : Optical Bypass Operation on a DAS
The optical bypass switch reroutes the light signal by intercepting it before it reaches the failed Station 1 and sends it back out to the ring. This allows the signal to maintain its existing path and direction without wrapping back on itself. However, stations that are operating normally repeat the signal when sending it back out to the ring. Optical bypass switches do not repeat or drive the signal (they just allow the signal to pass through them), so significant signal loss can occur when the downstream neighbor (the next station on the ring) is far away.
Another technique for fault tolerance is dual homing, whereby critical devices are attached to two concentrators. Only the designated primary concentrator is active unless it (or its link) fails. If the primary does fail, the backup (passive) concentrator is automatically activated and sustains the ring.
FDDI full-duplex allows an FDDI ring with exactly two stations to transform the ring into a full-duplex, point-to-point topology.
In order to operate in full-duplex mode, there must be only two stations on the ring, the two stations must be capable of operating in full-duplex mode, and both stations must complete a full-duplex auto-configuration protocol. There is no FDDI token in full-duplex mode.
Full-duplex auto-configuration protocol allows a station to dynamically and automatically operate in either half-duplex (or ring) or full-duplex mode, and ensures that the stations fall back to ring mode when a configuration change occurs, such as a third station joining the ring.
After booting up, the stations begin operation in ring mode. While the station performs the full-duplex auto-configuration protocol, the station continues to provide data link services to its users. Under normal conditions, the transition between half-duplex mode and full-duplex mode is transparent to the data-link users. The data-link services provided by full-duplex mode are functionally the same as the services provided by half-duplex mode.
Typically, FDDI uses two types of fiber-optic cable:
Mode refers to the angle at which light rays (signals) are reflected and propagated through the optical fiber core, which acts as a waveguide for the light signals. Multimode fiber has a relatively thick core (62.5/125-micron) that reflects light rays at many angles. Single-mode fiber has a narrow core (8.7 to 10/125-micron) that allows the light to enter only at a single angle.
Although multimode fiber allows more light signals to enter at a greater variety of angles (modes), the different angles create multiple propagation paths that cause the signals to spread out in time and limits the rate at which data can be accurately received. This distortion does not occur on the single path of the single-mode signal; therefore, single-mode fiber is capable of higher bandwidth and greater cable run distances that multimode fiber. In addition, multimode transmitters usually use LEDs as a light source, and single-mode transmitters use a laser diode, which is capable of sustaining faster data rates. Both types use a photodiode detector at the receiver to translate the light signal into electrical signals.
The FDDI standard sets total fiber lengths of 1.2 miles (2 kilometers) for multimode fiber and 9.3 miles (15 kilometers) for single-mode fiber. (The maximum circumference of the FDDI network is only half the specified distance because of signal wrapping or loopback that occurs during fault correction.) The FDDI standard allows a maximum of 500 stations with a maximum distance between active stations of 1.2 miles.
Table 1 lists the signal descriptions for the mini-DIN optical bypass switch available on the FDDI port adapters. The mini-DIN-to-DIN adapter cable (CAB-FMDD=) allows connection to an optical bypass switch with a DIN connector (which is larger than the mini-DIN connector on the FDDI port adapters).
Table 1 : Optical Bypass Switch Pinout
The FDDI port adapter implementation complies with Version 6.1 of the X3T9.5 FDDI specification, offering a Class A dual attachment interface that supports the fault-recovery methods of DAS. The FDDI port adapter supports dual homing and optical bypass and complies with ANSI X3.1 and ISO 9314 FDDI standards.
Maximum Transmission Distances for FDDI Connections
The maximum transmission distances for single-mode and multimode FDDI stations are shown in Table 2. If the distance between two connected stations is greater than the maximum distance shown, significant signal loss can result.
Table 2 : FDDI Maximum Transmission Distances
FDDI Port Adapter Optical Power Parameters
The multimode and single-mode optical-fiber connections conform to the following optical power parameters:
What Is the FDDI Port Adapter?
The FDDI full-duplex port adapters provide an interface for both single-mode and multimode fiber-optic cable. The two physical ports (PHY A and PHY B) are available with either single-mode (SC) or multimode MIC receptacles. Each port adapter's FDDI connection allows a maximum bandwidth of 100 Mbps per the FDDI standard.
The following FDDI port adapter combinations are available:
Figure 5 : FDDI Port Adapter PA-F/FD-MM, Faceplate View
Figure 6 : FDDI Port Adapter PA-F/FD-SM, Faceplate View
The FDDI port adapters can be installed on the VIP2 in port adapter slot 0 and port adapter slot 1. Port adapters have a handle attached, but this handle is occasionally not shown in this publication to allow a full view of detail on the port adapter's faceplate.
The following sections discuss information specific to the FDDI port adapter:
Port Adapter Locations on the VIP2
Figure 7 shows a VIP2 with installed port adapters. With the VIP2 oriented as shown in Figure 7, the left port adapter is in port adapter slot 0, and the right port adapter is in port adapter slot 1. Port adapters have handles that allow for easy installation and removal; however, they are occasionally not shown in this publication to highlight port adapter faceplate detail. In the Cisco 7000, Cisco 7507, and Cisco 7513 chassis the VIP2 is installed vertically. In the Cisco 7010 and Cisco 7505 chassis the VIP2 is installed horizontally.
Figure 7 : Port Adapters on the VIP2 (Horizontal Orientation Shown)
The FDDI port adapter contains the enabled LED, standard on all port adapters, and status LEDs for each port. After system initialization, the enabled LED goes on to indicate that the FDDI port adapter has been enabled for operation. (The LEDs are shown in Figure 8.)
Figure 8 : LEDs on the FDDI Port Adapter (Partial Faceplate Shown)
The following conditions must be met before the enabled LED goes on:
If any of these conditions is not met, or if the initialization fails for other reasons, the enabled LED does not go on. In addition to the enabled LED, the FDDI port adapter has the following three LEDs:
The states of the port adapter's LED combinations, and the meanings of each are described in Table 3.
Table 3 : FDDI Port Adapter LED States (Refer to Figure 8)
FDDI Port Adapter Fiber-Optic Cables
The interface receptacles on the FDDI port adapter are MICs for multimode and SC-type connectors for simplex and duplex, single-mode applications. The multimode receptacle is an FDDI-standard physical sublayer (PHY) connector that encodes and decodes the data into a format acceptable for fiber transmission. The multimode receptacle accepts standard 62.5/125-micron, multimode fiber-optic cable using the MIC and, with proper cable terminators, can accept 50/125 micron fiber-optic cable.
Multimode uses the integrated MIC shown in Figure 9, at both the port adapter end and the network end.
Figure 9 : Multimode FDDI Network Interface MIC
For FDDI single-mode connections, use one duplex SC connector (see Figure 10) or two single SC connectors, at both the port adapter end and the network end. (See Figure 11.) Single-mode optical fiber cable has a narrow core (8.7 to 10/125-micron), which allows the light to enter only at a single angle.
Figure 10 : Duplex SC Connector
Figure 11 : Simplex SC Connector
VIP2 and Full-Duplex FDDI Port Adapters
The full-duplex FDDI port adapters are used on the VIP2, and can be installed in either port adapter slot 0 or port adapter slot 1. There are two full-duplex FDDI port adapters: PA-F/FD-MM and PA-F/FD-SM.
PA-F/FD-MM uses multimode MIC optical-fiber interface connections, and PA-F/FD-SM uses single-mode SC-type optical-fiber interface connections. Both PA-F/FD-MM and PA-F/FD-SM have optical bypass switching capability in the form of a mini-DIN connector.
Figure 12 shows PA-F/FD-SM port adapters installed on a VIP2 in port adapter slots 0 and 1.
Figure 12 : VIP2 with PA-F/FD-SM Port Adapters in Port Adapter Slots 0 and 1
Figure 13 shows PA-F/FD-MM port adapters installed on a VIP2 in port adapter slots 0 and 1.
Figure 13 : VIP2 with Two PA-F/FD-MM Port Adapters in Port Adapter Slots 0 and 1
The following sections include information specific to the full-duplex FDDI port adapters and their use on the VIP2 in Cisco 7000 series and Cisco 7500 series routers:
Installing or Replacing a Port Adapter on a VIP2
Depending on the circumstances, you might need to install a new port adapter on a VIP2 motherboard or replace a failed port adapter in the field. In either case, you need a number 1 Phillips screwdriver, an antistatic mat onto which you can place the removed interface processor, and an antistatic container into which you can place a failed port adapter for shipment back to the factory.
When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot to allow the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements, and so that air flows through the chassis properly. If you plan to install a new port adapter, you must first remove the blank port adapter.
Following is the standard procedure for removing and replacing any type of port adapter on the VIP2:
Figure 14 : Location of Port Adapter Screw, Partial Port Adapter View
Figure 15 : Pulling a Port Adapter Out of a Slot, Partial Port Adapter View
Figure 16 : Positioning a Port Adapter for Installation
Figure 17 : Aligning the Carrier Edge with Upper and Lower Slot Edges, Partial View
This completes the procedure for installing a new port adapter or replacing a port adapter on a VIP2.
Attaching FDDI Port Adapter Cables
Both single-mode and multimode, dual attachment connections are available. Fiber-optic cable connects directly to the FDDI ports. Single-mode uses simplex or duplex SC-type transmit and receive cables.
Connect single-mode, dual attachment as shown in Figure 18 or Figure 19.
Figure 18 : Single-Mode Dual Attachment with Four Simplex SC-Simplex Cables
Figure 19 : Single-Mode Dual Attachment with Two Duplex SC-Duplex Cables
Multimode uses MIC cables. Connect multimode, dual attachment as shown in Figure 20
Figure 20 : Multimode Dual Attachment with MIC Cables
Attaching an Optical Bypass Switch
An optical bypass switch is a device installed between the ring and the station that provides additional fault tolerance to the network. If an FDDI port adapter that is connected to a bypass switch fails or shuts down, the bypass switch activates automatically and allows the light signal to pass directly through it, bypassing the port adapter completely.
Following are general instructions for connecting an optical bypass switch to the FDDI port adapter; however, your particular bypass switch may require a different connection scheme. Use these steps and the illustrations in Figure 21 and Figure 22, on page page 23, as general guidelines, but for specific connection requirements, refer to the instructions provided by the manufacturer of the optical bypass switch.
A port for connecting an optical bypass switch is provided on the multimode/multimode port adapter (PA-F/FD-MM shown in Figure 21), and the single-mode/single-mode port adapter (PA-F/FD-SM, shown in Figure 22).
Figure 21 : Optical Bypass Switch Connection (PA-F/FD-MM)
Figure 22 : Optical Bypass Switch Connection (PA-F/FD-SM)
Configuring the FDDI Port Adapter Interfaces
If you installed a new FDDI port adapter or if you want to change the configuration of an existing interface, you must enter Configuration mode using the configure command. If you replaced an FDDI port adapter that was previously configured, the system will recognize the new FDDI interfaces and bring them up in their existing configuration. After you verify that the new FDDI port adapter is installed correctly (the enabled LED goes on), use the privileged-level configure command to configure the new interfaces. Be prepared with the information you will need, such as the following:
The configure command requires privileged-level access to the EXEC command interpreter, which usually requires a password. Contact your system administrator if necessary to obtain EXEC-level access. For a summary of the configuration options available and instructions for configuring the FDDI interfaces on the VIP2, refer to the appropriate configuration publications listed in the section "If You Need More Information" on page 2.
Following are the topics included in this section:
Selecting Chassis Slot, Port Adapter, and FDDI Port Numbers
The following section describes how to identify chassis slot, port adapter, and FDDI port numbers.
In the router, physical port addresses specify the actual physical location of each interface port on the router interface processor end. (See Figure 23.) This address is composed of a three-part number in the format chassis slot number/port adapter number/interface port number, as follows:
The first number identifies the chassis slot in which the VIP2 is installed (as shown in the example system in Figure 23).
The second number identifies the physical port adapter slot number on the VIP2, and is either 0 or 1.
The third number identifies the interface port on each FDDI port adapter, which is always numbered as interface 0.
Interface ports on the VIP2 maintain the same address regardless of whether other interface processors are installed or removed. However, when you move a VIP2 to a different slot, the first number in the address changes to reflect the new chassis slot number.
Figure 23 shows some of the slot port adapter and interface ports of a sample Cisco 7505 system. For example, on a VIP2 equipped with two FDDI port adapters in slot 3, the address of the first FDDI port adapter is 3/0/0 (chassis slot 3, port adapter slot 0, and interface port 0), and the address of the second FDDI port adapter is 3/1/0.
The first port adapter slot number is always 0. The second port adapter slot number is always 1. The individual interface port numbers always begin with 0. The number of additional ports depends on the number of ports on a port adapter.
Figure 23 : Interface Port Number Example (Cisco 7505 Shown)
You can identify interface ports by physically checking the slot/port adapter/interface port location on the back of the router or by using software commands to display information about a specific interface or all interfaces in the router.
The following steps describe a basic configuration. Press the Return key after each step unless otherwise noted. At any time you can exit the privileged level and return to the user level by entering disable at the prompt as follows:
Following is a basic configuration procedure:
To check the interface configuration using the show and ping commands, proceed to the section "Checking the Configuration."
Configuring Full-Duplex Operation
Full-duplex operation requires FDDI port adapters PA-F/FD-SM or PA-F/FD-MM, and requires that the host router has a specific, minimum Cisco IOS software release. (Refer to the section "Software and Hardware Requirements" on page 3.)
Full-duplex operation is not the default configuration and must be turned on using the fddi full-duplex command. To turn off full-duplex operation and reset the interface, use the no fddi full-duplex command.
Following is an example of configuring an FDDI interface for full-duplex operation using the fddi full-duplex command:
The output of the show interfaces fddi slot/port-adapter/port command displays the state of the FDDI port adapter interface and the state of full-duplex operation. Following is a partial sample output of this command from an FDDI interface with full-duplex operation enabled:
where *, in the last line, could be After configuring the new interface, use the show commands to display the status of the new interface or all interfaces and the ping command to check and verify connectivity.
Following are the topics included in this section:
Using show Commands to Verify the VIP2 Status The following steps use show commands to verify that the new interfaces are configured and operating correctly.
If the interface is down and you configured it as up, or if the displays indicate that the hardware is not functioning properly, ensure that the network interface is properly connected and terminated. If you still have problems bringing the interface up, contact a service representative for assistance.
Using show Commands to Display Interface Information To display information about a specific interface, use the show interfaces command with the interface type and port address in the format show interfaces type slot/port-adapter/port.
Following is an example of how the show interfaces type slot/port-adapter/port command displays status information (including the physical slot and port address) for the interfaces you specify. In these examples, most of the status information for each interface is omitted. The following example shows all of the information specific to the first FDDI port (interface port 0) in chassis slot 3, port adapter slot 0:
Interfaces are administratively shut down until you enable them. With the show interfaces command, use just the argument type to display information about a specific type of interface only. For example, show interfaces fddi will display information about just the FDDI ports in the system.
The show version (or show hardware) command displays the configuration of the system hardware (the number of each interface processor type installed), the software version, the names and sources of configuration files, and the boot images. Following is an example of the show version command used with a Cisco 7500 series system in which an FDDI-equipped VIP2 is installed:
To determine which type of port adapter is installed on a VIP2 in your system, use the show diagbus slot command. Specific port adapter information is displayed, as shown in the following examples of PA-F/FD-SM and PA-F/FD-MM port adapters in chassis slots 3 and 5:
Serial number: 03524551 Part number: 73-2139-01
(Where Part number: in the last line refers to a PA-F/FD-SM port adapter.)
(Where Part number: in the last line refers to a PA-F/FD-MM.)
Using the ping Command to Verify Connectivity The packet internet groper (ping) command allows you to verify that an interface port is functioning properly and to check the path between a specific port and connected devices at various locations on the network. This section provides brief descriptions of the ping command. After you verify that the system and VIP2 have booted successfully and are operational, you can use this command to verify the status of interface ports.
The ping command sends an echo request out to a remote device at an IP address that you specify. After sending a series of signals, the command waits a specified time for the remote device to echo the signals. Each returned signal is displayed as an exclamation point (!) on the console terminal; each signal that is not returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the messages [timed out] or [failed] indicate that the connection failed.
Following is an example of a successful ping command to a remote server with the address 1.1.1.10:
If the connection fails, verify that you have the correct IP address for the server and that the server is active (powered on), and repeat the ping command.
For complete descriptions of interface subcommands and the configuration options available for VIP2-related interfaces, and which support VIP2 functionality, refer to the publications listed in the section "If You Need More Information" on page 2.
Following is an example of the laser warning labels that appears on the product:
Waarschuwing Wanneer geen kabel aangesloten is, kan er onzichtbare laserstraling geëmitteerd worden uit de apertuurpoorten van de enkelvoudige-modus FDDI-kaart ("Fiber Distributed Data Interface" = "Interface van door glasvezels gedistribueerde gegevens"). Vermijd blootstelling en staar niet in de open aperturen.
Varoitus Yksitoimintoisen FDDI-kortin avoimista porteista saattaa vapautua näkymättömiä lasersäteitä kaapelin ollessa irrotettuna. Vältä säteilyä ja avoimiin aukkoihin katsomista.
Attention Des rayons laser invisibles peuvent s'échapper des ouvertures prévues pour la carte d'interface des données distribuées par fibres optiques monomode (Fiber Distributed Data Interface ou FDDI) quand un câble n'est pas connecté. Eviter toute exposition et ne pas approcher les yeux des ouvertures.
Warnung Wenn kein Kabel angeschlossen ist, wird möglicherweise unsichtbare Laserstrahlung von den Steckanschlüssen der Monomode-FDDI-Karte (Glasfaserdatenübertragungs-Schnittstelle; Fiber Distributed Data Interface) ausgestrahlt. Schützen Sie sich vor Strahlung, und blicken Sie nicht direkt in offene Steckanschlüsse.
Avvertenza Radiazioni laser invisibili potrebbero essere emesse dalle porte di apertura della scheda FDDI (Fiber Distributed Data Interface - Interfaccia di dati distribuiti a fibre) a modo singolo quando il cavo non è stato collegato. Evitare l'esposizione a tali radiazioni e non fissare alcuna porta aperta.
Advarsel Usynlig laserstråling kan emitteres fra åpningsutgangene på FDDI-kort med kabel av monomodusfiber når de ikke er tilkoblet en ledning. Unngå utsettelse for stråling, og stirr ikke inn i åpne åpninger.
Aviso Radiação laser invisível poderá ser emitida através das portas de abertura da placa FDDI (Interface de Dados Distribuídos por Fibra Óptica) de modo simples, mesmo quando não houver nenhum cabo ligado. Evite exposição e não espreite por estas aberturas.
¡Atención! La tarjeta FDDI modo sencillo puede emitir radiaciones láser invisibles por los orificios de los puertos cuando no se haya conectado ningún cable. Evitar la exposición y no mirar fijamente los orificios abiertos.
Varning! Osynlig laserstrålning kan avges från portöppningarna för FDDI-kortet för enkelmodsfiber när ingen kabel är ansluten (FDDI: Fiber Distributed Data Interface = gränssnitt för dataöverföring med fiberoptik). Utsätt dig inte för denna strålning och titta inte in i öppningarna.
Waarschuwing Klasse-1 laser produkt.
Varoitus Luokan 1 lasertuote.
Attention Produit laser de classe 1.
Warnung Laserprodukt der Klasse 1.
Avvertenza Prodotto laser di Classe 1.
Advarsel Laserprodukt av klasse 1.
Aviso Produto laser de classe 1.
¡Atención! Producto láser Clase I.
Varning! Laserprodukt av klass 1.
Cisco Connection Online (CCO), formerly Cisco Information Online (CIO), is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional content 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, 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 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 ccohelp@cisco.com. For additional information, contact ccoteam@cisco.com.
Copyright 1988-1996 © Cisco Systems Inc.
Pin
Direction
Description
1
Out
+5V to secondary switch
2
Out
+5V to primary switch
3
Out
Enable optical bypass switch primary
4
Out
Enable optical bypass switch secondary
5
In
Sense optical bypass switch---1 kohm to +5 V
6
Out
Ground---Sense optical bypass switch return
Transceiver Type
Maximum Distance Between Stations
Single-mode
Up to 9.3 miles (up to 15 km)
Multimode
Up to 1.2 miles (up to 2 km)
FDDI PA LEDs1
Indication
PHY A
PHY B
Dual-Homed
---
---
---
Not connected
---
---
O
Not possible
---
O
---
Wrap B
---
O
O
Dual homed (B connected to M port)
O
---
---
Wrap A
O
---
O
Dual homing back-up (A connected to M port; B port is not connected
O
O
---
Thru A
O
O
O
Not possible
1 For the LED patterns "" means off, "O" means on. Refer also to Figure8.
Router# disable
Router>
Router#
configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Router(config)#
interface fddi 1/0/0
Router(config-int)#
ip address 1.1.1.10 255.255.255.0
Router(config-int)#
no shutdown
Router#
copy running-config startup-config
[OK]
Router#
Router# conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# int f 0/1/0
Router(config-if)# fddi full-duplex
Ctrl-z
Router#
Router# show int f 3/0/0
Fddi3/0/0 is up, line protocol is up
Hardware is cxBus FDDI, address is 0000.0c0c.4444 (bia 0060.3e47.4360)
Internet address is 14.0.0.2/8
MTU 4470 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 10/255
Encapsulation SNAP, loopback not set, keepalive not set
ARP type: SNAP, ARP Timeout 04:00:00
FDX supported, FDX enabled, FDX state is *
idle
,
request
,
confirm
, or
operation
, depending on the state the FDDI interface was in when the show interfaces command is entered.
FDX supported, FDX disabled
.
If the port adapter does not support full-duplex,
FDX NOT supported
is displayed. Full-duplex operation requires Cisco IOS Release 11.1(6)CA, or later, and port adapters PA-F/FD-SM or PA-F/FD-MM.
Router# show int f 3/0/0
Fddi3/0/0 is up, line protocol is up
Hardware is cxBus FDDI, address is 0000.0c0c.4444 (bia 0060.3e47.4360)
Internet address is 14.0.0.2/8
MTU 4470 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 10/255
Encapsulation SNAP, loopback not set, keepalive not set
ARP type: SNAP, ARP Timeout 04:00:00
FDX supported, FDX disabled, FDX state is operation
Phy-A state is connect, neighbor is Unknown, status QLS
Phy-B state is active, neighbor is A, status SILS
ECM is in, CFM is c_wrap_b, RMT is ring_op,
Requested token rotation 5000 usec, negotiated 0 usec
Configured tvx is 2500 usec
LER for PortA = 09, LER for PortB = 0C ring operational 11:36:23
Upstream neighbor 0000.0c0c.8888, downstream neighbor 0000.0c0c.8888
Last input 00:02:22, output 00:00:06, output hang never
Last clearing of "show interface" counters 14:57:58
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 3922000 bits/sec, 147 packets/sec
5 minute output rate 3962000 bits/sec, 148 packets/sec
7523044 packets input, 631964210 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
7523554 packets output, 625092443 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 transitions, 0 traces, 0 claims, 0 beacon
Router# show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software (RSP-JV-M), Released Version 11.1(6)CA [biff 101]
Copyright (c) 1986-1996 by cisco Systems, Inc.
Compiled Fri 10-May-96 16:20 by biff
Image text-base: 0x600108A0, data-base: 0x608DC000
ROM: System Bootstrap, Version 5.3(18168) [biff 61], INTERIM SOFTWARE
ROM: GS Software (RSP-BOOT-M), Experimental Version 11.1(6)CA [biff 103]
Router uptime is 20 hours, 34 minutes
System restarted by power-on
System image file is "slot0:zippy/biff/rsp-jv-mz.111.6ca", booted via slot0
cisco RSP2 (R4600) processor with 16384K bytes of memory.
R4600 processor, Implementation 32, Revision 2.0
Last reset from power-on
G.703/E1 software, Version 1.0.
SuperLAT software copyright 1990 by Meridian Technology Corp).
Bridging software.
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
Primary Rate ISDN software, Version 1.0.
Chassis Interface.
2 VIP2 controllers (8 Ethernet)(2 Fddi).
8 Ethernet/IEEE 802.3 interfaces.
2 FDDI network interfaces.
125K bytes of non-volatile configuration memory.
8192K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
8192K bytes of Flash internal SIMM (Sector size 256K).
No slave installed in slot 6.
Configuration register is 0x0
Router# show diag 3
Slot 3:
Physical slot 3, ~physical slot 0xC, logical slot 3, CBus 0
Microcode Status 0xC
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: Console I/O
EEPROM format version 1
VIP2 controller, HW rev 2.2, board revision UNKNOWN
Serial number: 03507946 Part number: 73-1684-02
Test history: 0x00 RMA number: 00-00-00
Flags: cisco 7000 board; 7500 compatible
EEPROM contents (hex):
0x20: 01 15 02 02 00 35 86 EA 49 06 94 02 00 00 00 00
0x30: 12 2B 00 2A 1A 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4 Insertion time: 0x1988 (20:32:53 ago)
Controller Memory Size: 8 MBytes
PA Bay 0 Information:
FDDI PA, 1 ports, PA-F/FD-SM
EEPROM format version 1
HW rev 1.0, Board revision 21
Router# show diag 5
Slot 5:
Physical slot 5, ~physical slot 0xA, logical slot 5, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.2, board revision UNKNOWN
Serial number: 03507948 Part number: 73-1684-02
Test history: 0x00 RMA number: 00-00-00
Flags: cisco 7000 board; 7500 compatible
EEPROM contents (hex):
0x20: 01 15 02 02 00 35 86 EC 49 06 94 02 00 00 00 00
0x30: 12 2B 00 2A 1A 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4 Insertion time: 0x3C3C (20:32:59 ago)
Controller Memory Size: 8 MBytes
PA Bay 0 Information:
FDDI PA, 1 ports, PA-F/FD-MM
EEPROM format version 1
HW rev 1.0, Board revision 21
Serial number: 02825768 Part number: 73-2138-01
Router# ping 1.1.1.10 <Return>
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 1.1.1.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms
Router#
