|
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Product Numbers:
CSC-C2FCIT=
APP-LMM=
APP-LMS=
APP-LSM=
APP-LSS=
MC-C2FCIT-V10.3=
This publication provides instructions for installing the Fiber Distributed Data Interface (FDDI) modules in the AGS+ router. These modules include the FDDI interface card with translational bridging (CSC-C2FCIT) and the four available fiber-optic transceiver appliques, which provide single-mode and/or multimode network interfaces. The C2FCIT card operates with the second- generation ciscoBus card (CSC-CCTL2).
This publication also includes instructions for upgrading the C2FCIT microcode when required.
The sections following are included in this publication:
If you encounter a new problem and determine that it is not the result of this installation or upgrade, refer to the AGS+ Hardware Installation and Maintenance publication for initial system startup troubleshooting procedures, or to the Troubleshooting Internetworking Systems publication for additional suggestions for resolving the problem.
The FDDI interface modules described in this document include the single-port FDDI communications interface card with translational bridging (CSC-C2FCIT) and the four available fiber-optic transceiver appliques. While incorporating all of the functions of the C2FCI card, the C2FCIT card provides higher speeds than the C2FCI card as well as the following translational bridging capabilities: FDDI to FDDI (transparent), FDDI to Ethernet, and FDDI to Token Ring.
The C2FCIT card must be installed in an AGS+ router that is running Software Release 9.1 or later and that contains a CSC/3 or CSC/4 processor card. The router must also contain a ciscoBus2 (CSC-CCTL2) card (which is indicated by C2 in the product number).
C2FCIT cards can be installed in any of the four available ciscoBus slots in the system card cage. A maximum of four C2FCIT cards is allowed in the AGS+, with one FDDI applique per C2FCIT card. The FDDI appliques are installed in the rear of the chassis in an applique card cage (Product Number MAS-CCG).
The C2FCIT card (see Figure 1) is one of the two AGS+ FDDI interfaces for both single-mode and multimode network interfaces. (The other FDDI interface card is the CSC-C2FCI.) The C2FCIT card is connected to the ciscoBus and Multibus backplanes in the AGS+ router.
The CCTL2 card is backward compatible with the FCI, HSCI/Ultra, and MEC cards, providing all have Microcode Version 10.0 or later, and the system is running Software Release 9.1 or later. An FCI, HSCI, or MEC card with Microcode Version 10.0 or later will include in its name C2 (C2FCI, C2HSCI/Ultra, and C2MEC), which indicates that the card has Microcode Version 10.0 or later and can be used with the CCTL2 ciscoBus card.
The distance limitations for single-mode and multimode FDDI stations are listed in Table 1. Both FDDI modes provide 11 decibels (dB) of optical power.
| Transceiver Type | Maximum Distance Between Stations |
|---|---|
| Single-mode | Up to 6.2 mi (10 km) |
| Multimode | Up to 1.2 mi (2 km) |
The fiber-optic transceivers reside on circuit cards called appliques that provide the interface between external network connections and the internal CSC-FCI card. The four applique configurations are shown in Figures 2 through 5; each provides a unique combination of single-mode and/or multimode FDDI interfaces.
Following are the four FDDI applique mode combinations:
Both the single-mode and multimode transceivers provide a Class A dual attachment interface that can be connected to either a Class A or Class B station. Class A is a dual attachment station (DAS) with primary and secondary rings; Class B is a single attachment station (SAS) with only a primary ring.
The single-mode transceiver provides connectivity to single-mode FDDI fiber for distances up to 6.2 miles (10 kilometers). The connector is a simplex FC-type interface that accepts standard 8.2 to 10/125 micron (±0.5) single-mode fiber-optic cable.
The multimode connectors are FDDI-standard physical (PMD) connectors. The connectors accept FDDI standard 62.5/125 micron multimode fiber-optic cable using the media interface connector (MIC). The MIC can also accept alternate cable sizes, such as 50, 85, or 100-micron multimode fiber. Use care when using alternate fiber sizes, to avoid violating optical power budget restrictions.
The multimode/multimode applique also provides a DIN port for connecting an optional optical bypass switch, which allows the light signal to pass directly from the receive port to the transmit port. When this optical bypass is used, the signal is not repeated, and significant signal loss may occur when transmitting to stations at maximum distances.
Following are the connectors typically used with single-mode and multimode FDDI applications.
Figure 6 shows the fiber-optic network interface cable FC-type connector typically used for single-mode FDDI applications with the APP-LSS, APP-LSM, and APP-LMS FDDI appliques.
 | Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode FDDI products when no fiber cable is connected. Avoid exposure and do not stare into open apertures. This product meets the Class 1 Laser Emission Requirement from CDRH FDDI. |
Figure 7 shows the fiber-optic MIC used for network and chassis connections with the APP-LMM, APP-LMS, and APP-LSM FDDI appliques.
Following are safety guidelines, system configuration and compatibility requirements, and lists of the parts and tools required for installation. Before installing any FDDI cards or appliques, review this section to ensure that you can perform the installation or upgrade without interruption.
Follow these guidelines when working with any electrical equipment:
In addition, use the guidelines that follow when working with any equipment that is connected to telephone wiring or other network cabling.
| Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode appliques when no fiber cable is connected. Avoid exposure and do not stare into open apertures. This product meets the Class 1 Laser Emission Requirement from CDRH FDDI. |
Following are the physical requirements and limitations that you must consider before installing new FDDI components in your system. For example, to obtain optimum performance, you must ensure that the new components are compatible with the existing system configuration and that you place interface cards in the proper card-cage slots.
Your AGS+ must meet the following general compatibility requirements before you install a C2FCIT card and associated appliques:
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Following are guidelines for preventing ESD damage:
 | Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 mega ohms. |
The AGS+ card cage, shown in Figure 8, has nine slots, five of which are designated ciscoBus slots. The center ciscoBus slot is reserved for the ciscoBus card, leaving four ciscoBus slots available for ciscoBus interface cards.
The AGS+ uses a slot priority scheme that assigns a priority to each ciscoBus card according to the ciscoBus slot in which the card resides. The card in ciscoBus slot 0 receives the highest ciscoBus priority, while the card in ciscoBus slot 3 receives the lowest ciscoBus priority.
Slot priorities are set to accommodate the amount of traffic generated by each interface card and the amount of card buffering required. Each ciscoBus interface card is placed in a specific slot with regard to other ciscoBus interface cards, if any. The order of priority is the same for both first- and second-generation ciscoBus cards, except that the cards with the designation C2 can only be used with the CSC-CCTL2.
Following is a list of ciscoBus interface cards in order of priority, from highest to lowest:
1 ) CSC-MEC and C2MEC (10 megabits per second [Mbps])
2 ) CSC-C2CTR (16 Mbps)
3 ) CSC-HSCI and C2HSCI with an APP-LHS applique (High-Speed Serial Interface) (45 through 52 Mbps)
4 ) CSC-FCI and C2FCI (100 Mbps)
5 ) CSC-C2FCIT (100 Mbps)
6 ) CSC-HSCI and C2HSCI with an APP-ULA applique (UltraNet interface) (125 Mbps)
Install CSC-MEC or C2MEC cards in the lowest-numbered slots, beginning with slot 0 (which has the highest priority), followed by CSC-C2CTR cards. After all CSC-MEC and CSC-C2CTR cards are installed, install CSC-HSCI and C2HSCI cards with the APP-LHS applique in the lowest-numbered slots available. Follow with the CSC-FCI and C2FCI cards. Next, install CSC-C2FCIT cards. Last, install the CSC-HSCI and C2HSCI cards with the APP-ULA (UltraNet) applique. Always install cards in the lowest-numbered available slot. For example, if you are using only CSC-C2HSCI cards (with APP-ULA), place the first in slot 0, the second in slot 1, and so forth.
Table 2 lists the maximum port and card configurations for all of the ciscoBus cards currently available. Use this table as a guide when installing new ciscoBus cards and reconfiguring your AGS+.
| C2FCIT/(C2)FCI 1 Ports (Cards) | (C2)MEC Ports (Cards | (C2)HSSI Ports (Cards) | C2CTR Ports (Cards) | ||||
|---|---|---|---|---|---|---|---|
| 0 | (0) | 24 | (4) | 0 | (0) | 0 | (0) |
| 1 | (1) | 18 | (3) | 0 | (0) | 0 | (0) |
| 0 | (0) | 18 | (3) | 1 | (1) | 0 | (0) |
| 0 | (0) | 18 | (3) | 0 | (0) | 4 | (1) |
| 2 | (2) | 12 | (2) | 0 | (0) | 0 | (0) |
| 1 | (1) | 12 | (2) | 1 | (1) | 0 | (0) |
| 1 | (1) | 12 | (2) | 0 | (0) | 4 | (1) |
| 0 | (0) | 12 | (2) | 2 | (2) | 0 | (0) |
| 0 | (0) | 12 | (2) | 1 | (1) | 4 | (1) |
| 0 | (0) | 12 | (2) | 0 | (0) | 8 | (2) |
| 1 | (1) | 6 | (1) | 0 | (0) | 6 | (2) |
| 0 | (0) | 6 | (1) | 1 | (1) | 6 | (2) |
| 3 | (3) | 6 | (1) | 0 | (0) | 0 | (0) |
| 0 | (0) | 6 | (1) | 3 | (3) | 0 | (0) |
| 2 | (2) | 6 | (1) | 1 | (1) | 0 | (0) |
| 2 | (2) | 6 | (1) | 0 | (0) | 4 | (1) |
| 0 | (0) | 6 | (1) | 2 | (2) | 4 | (1) |
| 1 | (1) | 6 | (1) | 1 | (1) | 4 | (1) |
| 1 | (1) | 6 | (1) | 2 | (2) | 0 | (0) |
| 3 | (3) | 0 | (0) | 0 | (0) | 2 | (1) |
| 2 | (2) | 0 | (0) | 1 | (1) | 2 | (1) |
| 1 | (1) | 0 | (0) | 2 | (2) | 2 | (1) |
| 0 | (0) | 0 | (0) | 3 | (3) | 2 | (1) |
| 4 | (4) | 0 | (0) | 0 | (0) | 0 | (0) |
| 3 | (3) | 0 | (0) | 1 | (1) | 0 | (0) |
| 2 | (2) | 0 | (0) | 2 | (2) | 0 | (0) |
| 1 | (1) | 0 | (0) | 3 | (3) | 0 | (0) |
| 0 | (0) | 0 | (0) | 4 | (4) | 0 | (0) |
In an AGS+ chassis shipped on or after October 1, 1991, the total power drawn by all installed cards must not exceed 300 watts (W) per chassis. In chassis shipped before this date, the total power cannot exceed 260W. (The earlier chassis contained a 5-amp [A] circuit breaker, rather than the 7.5A circuit used in the later chassis configuration.) Table 3 lists the power requirements for each card available for the AGS+.
| Card | Power (Watts) |
|---|---|
| CSC/3 | 31 |
| CSC/4 | 35 |
| CSC-ENVM | 10 |
| CSC-MC+ | 3 |
| CSC-MCI | 281 |
| CSC-SCI | 20 |
| CSC-R16M | 34 |
| CSC-1R or CSC-2R | 30 |
| CSC-CCTL | 29 |
| CSC-CCTL2 | 34 |
| CSC-(C2)FCI | 50 |
| CSC-FCIT | 36 |
| CSC-(C2)MEC(2, 4, or 6) | 221 |
| CSC-(C2)HSCI | 48 |
| CSC-C2CTR with 1 applique (2 ports) | 30 |
| CSC-C2CTR with 2 appliques (4 ports) | 42 |
Before installing new cards, check the power requirements of the existing system and the new card(s) to avoid exceeding the power budget. Calculate the power requirements of an existing system by adding the values for each card in the chassis; the sum is the power requirement. Determine the available power budget, subtract that sum from 300W (260W for chassis shipped before 10/1/91); the result is the power budget available for new cards.
The following example shows how to determine if you can add two new CSC-C2FCIT cards to an AGS+ (with all values in watts):
| One CSC-ENVM card | 1 x 10 = 10 |
| One CSC/4 processor card | 1 x 35 = 35 |
| One CSC-CCTL2 card | 1 x 34 = 34 |
| Two CSC-C2MEC6 cards | 2 x 22 = 44 |
| One CSC-MCI 2E card | 1 x 28 = 28 |
| 14 Ethernet transceivers | 14 x 4 = 56 |
| Power requirement of present system | 207 |
| Available power budget | 300 - 207 = 93 |
| Two CSC-FCIT cards | 2 x 36 = 72 |
| New cards within power budget | 72 < 93 |
The following parts are necessary to install each new FDDI interface:
If you are upgrading the C2FCIT microcode, you also need one or more replacement components. For instructions, proceed to the section "Upgrading Microcode" on page 28.
Verify that you received all the parts for the interfaces you will install. In general, each interface card requires one applique, and every two appliques require one applique card cage. If any parts are missing, contact a customer service representative.
Following are the tools required for installing interface cards and appliques:
Whenever you install new hardware components, the system automatically invokes the setup command facility the first time the system is started. You can use setup to configure the new interfaces, or exit from the setup command facility and configuring the new interfaces with the configure EXEC command.
Before installing new interfaces, be prepared with the information you will need such as the protocols you plan to route on each interface, IP addresses if you will configure the interfaces for IP, and which interfaces, if any, will use bridging.
For detailed descriptions of setup and initial configuration procedures, refer to the Router Products Getting Started Guide and Router Products Command Reference publications. The Router Products Getting Started Guide and the Router Products Configuration and Reference publications provide detailed descriptions and sample sessions of both the setup command and the configure command.
Following are the procedures described in this section:
Before proceeding, ensure that your system and equipment meet the requirements listed in the section "Installation Prerequisites" on page 7.
Following is the procedure for accessing the chassis interior.
Step 1 If you will need to handle any electronic components (cards, and so forth), attach appropriate ESD protection and attach the AC power cord but, to prevent a shock hazard, make certain the chassis power is OFF.
Step 2 To access cards in the card cage, loosen the two thumbscrews and remove the front panel from the chassis. (See Figure 9.)
Following is the procedure for installing the C2FCIT card:
Step 1 Slip on an ESD-preventive wrist strap and connect it to the chassis as described in "Preventing Electrostatic Discharge Damage" on page 8.
| Caution To avoid possible equipment failure, follow the ESD-prevention procedures described previously. |
Step 2 Grasp the C2FCIT card ejector levers and position the card with the component side up and the bus edge away from you. Handle the card as little as possible, and when you do handle it try to make contact with only the ejector levers and card edges.
Step 3 Place the bus edge of the C2FCIT card into the predetermined ciscoBus slot in the system card cage. For slot priority guidelines, refer to the section "Slot Priority" on page 9.
Step 4 Place your thumbs on the ejector levers and push the card in firmly until it snaps into place and is firmly seated in the slot. The ejector levers close automatically when the card is properly seated.
Step 5 If you are going to install FDDI appliques immediately, leave the front access panel off and proceed to the following section, "Installing the FDDI Applique."
If FDDI appliques are already in place, leave the front access panel off and proceed to the section "Connecting Internal and External Cables" on page 20.
The FDDI applique is installed in an applique card cage in the rear of the chassis; access to the rear of the chassis requires removing the front panel and top cover of the chassis. (See Figure 9.) The following procedure is required only if an FDDI applique is not already installed.
| Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode applique when no fiber cable is connected. Avoid exposure and do not stare into open apertures. This product meets Class 1 Laser Emission Requirement from CDRH FDDI. |
Following is the procedure for installing the FDDI applique in the applique card cage.
Step 1 If the applique card cage is installed in the chassis, disconnect any external connections to the applique it contains.
Step 2 Remove the card cage from the chassis by removing the six screws that secure it to the rear panel. Carefully lift the card cage up and out of the chassis, using care not to strain any internal ribbon cables that still may be attached to interface cards in the system card cage.
Step 3 Remove the top cover of the applique card cage by loosening the four cover fasteners that secure it. (See Figure 10.)
Step 4 If the card cage is empty, remove both filler plates from the rear. (See Figure 10.) If an applique is currently installed, remove only the filler plate.
Step 5 If you are installing only one applique in an empty card cage, install the FDDI applique, with its attached faceplate, into the right side of the card cage. (Orient the card cage as in Figure 10 for the following steps.)
Step 6 Position the applique so the status LEDs are on the bottom. Ensure that the tab on the bottom of the applique faceplate is inserted into the slot in the bottom of the applique card cage and that the applique is seated in the card guide. (See Figure 10.)
Step 7 For one applique only--If you are installing only one FDDI applique, insert the blank faceplate in the left side of the card cage, sliding it down so that the front edge aligns with the faceplate on the right side of the card cage.
For two appliques only--If you are installing a second FDDI applique in the card cage, install the applique in the left side of the card cage by sliding it down so that the faceplate aligns with the faceplate of the applique on the right side of the card cage. Insert the applique into the card cage with the status LEDs on the bottom. Ensure that the tab on the bottom of the applique faceplate is inserted into the slot in the bottom of the applique card cage and that the applique is seated in the card guide. (See Figure 10.)
Step 8 Replace the top cover of the applique card cage. Ensure correct alignment of the cover with the two guide pins on the bottom of the cover. The guide pins should pass through the alignment holes in the tabs on the top of each applique and faceplate assembly. Secure the top cover to the card cage with the four cover fasteners. (See Figure 10.)
The applique card cage can only be installed in one of the two large plate areas on the right side of the rear panel of the chassis. (For the remainder of this procedure, orient the card cage and chassis as shown in Figure 11.)
Step 1 Remove a blank connector plate from one of the two right-side connector areas by removing the six screws that secure it. (See Figure 11.)
Step 2 Place the applique card cage inside the rear of the chassis, in the empty large plate area. (See Figure 11.) Align the screw holes in the rear panel of the chassis with those in the applique card cage.
Step 3 Secure the card cage with the connector plate screws you removed earlier, leaving appropriate holes empty for the ground straps. See Figure 12 and Figure 13 for ground strap configurations.
Step 4 Attach the appropriate label (FDDI 0, FDDI 1, and so forth) to the lower part of the applique faceplate; the label will be clearly visible in this position.
Step 5 Decide if your installation requires a short or long ground strap. Use a short ground strap when you install the applique next to a blank connector plate (see Figure 12) or next to an applique that does not contain a hole for the long ground strap screw. Use a long ground strap when you install the applique next to an applique that contains a hole for the long ground strap, for example, another FDDI applique (see Figure 13).
The ground strap, which is included with all appliques, grounds the applique to the chassis to prevent EMI noise on your network interface. The applique card cage containing the FDDI appliques should already be installed in the chassis and secured with five screws. Refer to Figure 12 while you install the short ground strap.
Step 1 Remove the Phillips screw from the top center of each applique.
Step 2 Position the ground strap so that it straddles the applique and rear panel of the chassis. Align the holes in the ground strap with those on the rear panel and the applique.
Step 3 Secure the ground strap with the two Phillips screws.
Step 4 Connect ground straps to other appliques as necessary, and proceed to the section, "Connecting Internal and External Cables" on page 20.
Ground straps, which are included with all appliques, ground the applique to the chassis to prevent EMI noise on your network interface. The applique card cage containing the FDDI appliques should already be installed in the chassis and secured with four screws. Refer to Figure 13 while you install the long ground strap.
Step 1 Remove the Phillips screw from the top center of each applique.
Step 2 Position the ground strap so that it straddles both appliques and the rear panel of the chassis. Align the holes in the ground strap with those on the back panel and the appliques.
Step 3 Secure the ground strap with the four Phillips screws.
Step 4 Connect ground straps to other appliques as necessary, and proceed to the next section, "Connecting Internal and External Cables."
The four internal ribbon cables (permanently attached to the FDDI applique) attach to the four connectors on the front edge of the C2FCIT card. The FDDI network interface cables attach to the FDDI applique and provide the external connections to your network. Before beginning these procedures, position the chassis with the open card cage facing you.
The four internal ribbon cables are fixed to the applique and must be routed and attached to ports on the C2FCIT card. The ribbon cables are labeled alphabetically depending on the number of appliques you will install. The C2FCIT card connectors are shown in Figure 14, and the ribbon cable connectors are listed in Table 4. The ribbon cable orientation and labeling for the FDDI applique is shown in Figure 15.
The ribbon cables from your FDDI applique are labeled as follows:
Connect the four applique ribbon cables to the C2FCIT card as follows.
| Caution To prevent twisting the ribbon cables and causing a possible short circuit, individually route each cable (from the FDDI applique) under the main card cage through the space provided and then up to the corresponding C2FCIT card connector. |
Step 1 Connect the applique ribbon cable P3 A, E, I or M (the second cable from the left in
Figure 15) to the 26-pin connector labeled FDDI A, E, I, or M on the left front edge of the C2FCIT card shown in Figure 14.
Step 2 Connect the applique ribbon cable P2 B, F, J, or N (the second cable from the right in
Figure 15) to the 26-pin connector labeled FDDI B, F, J, or N in Figure 14.
Step 3 Connect the applique ribbon cable P1 C, G, K, or O (the far-right cable in Figure 15) to the 26-pin connector labeled FDDI C, G, K, or O in Figure 14.
Step 4 Connect the applique ribbon cable P4 D, H, L, or P (the far-left cable in Figure 15) to the far-right (16-pin) connector labeled FDDI D, H, L, or P in Figure 14.
| FDDI Ribbon Cable | From Connector | To CSC-C2FCIT Connector |
|---|---|---|
| FDDI A, E, I, or M | P3 | FDDI A, E, I, or M |
| FDDI B, F, J, or N | P2 | FDDI B, F, J, or N |
| FDDI C, G, K, or O | P1 | FDDI C, G, K, or O |
| FDDI D, H, L, or P | P4 | FDDI D, H, L, or P |
Following is the procedure for connecting the external FDDI cables. Refer to Figure 6 for an illustration of the single-mode FDDI connector and to Figure 7 for illustrations of the single-mode and multimode FDDI connectors.
| Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode appliques when no fiber cable is connected. Avoid exposure and do not stare into open apertures. This product meets the Class 1 Laser Emission Requirement from CDRH FDDI. |
Step 1 If you are not installing an optical bypass switch, skip to step 3.
Plug the male DIN connector (from the optical bypass switch) into the female DIN connector on the APP-LMM applique, then plug the fiber-optic MIC cables from the bypass switch into the PHY-A and PHY-B connectors on the FDDI applique.
Step 2 Connect the FDDI cables from the network into the PHY-A and PHY-B connectors on the optical bypass switch. Up to 100 milliamperes of current can be supplied to the optical bypass switch. A pinout of the DIN connector on the optical bypass switch is listed in
Table 5.
| Pin No. | Description |
|---|---|
| 1 | +5V to secondary switch |
| 2 | +5V to primary switch |
| 3 | Ground to enable primary switch |
| 4 | Ground to enable secondary switch |
| 5 | Sense circuit--1 kohm to +5V |
| 6 | Ground--sense circuit return |
Step 3 Multimode connections--Attach the fiber-optic MIC cables from the FDDI network to the PHY-A and PHY-B connectors on the applique. (See Figures 2 through 5.)
Single-mode connections--Attach the single-mode cables from the network to the appropriate transmit (XMT) A or B and receive (RCV) A or B connections on the FDDI applique.
| Caution Maintain the correct A-to-B and B-to-A relationship with the FDDI connectors. Failure to maintain this relationship will prevent the FDDI interface from initializing. For the optical bypass switch, PHY-A from the network goes to PHY-B on the switch, and PHY-B from the network goes to PHY-A on the switch. Some signal degradation will occur with the optical bypass switch installed in the FDDI ring. |
Step 4 Attach all other external cables to the appropriate applique connectors on the rear panel and loosely place the top cover on the chassis. Leave the front panel off until you finish testing the installation.
After you have installed your new FDDI module, verify the installation (before replacing the front panel) by taking the following steps.
| Caution With the front panel removed and power on, the chassis is susceptible to overheating. Apply power to the chassis only long enough to go through the configuration dialog routine, check LEDs, and verify proper system operation. Replace the front panel if it is necessary to leave on the power to the chassis for some time. |
Step 1 Turn ON the system power and allow the system to boot.
Step 2 Go through the configuration dialog (or setup) routine to assign an address and subnet mask to each new FDDI interface you have installed.
Step 3 Observe the LED status indicators on the CCTL2 card and the FDDI applique, and then use the EXEC show commands to verify that your interfaces are recognized and have been assigned port (unit) addresses by the system.
Two separate sets of LEDs provide status about the installation: those on the CCTL2 card and those on the FDDI applique. The LEDs on the CCTL2 card will verify the presence (and correct installation) of the C2FCIT cards in the ciscoBus backplane, while the LEDs on the applique report the state of the FDDI interfaces.
The C2FCIT card contains no LEDs or indicators. The LEDs on the CCTL2 card indicate when a ciscoBus interface is present in a ciscoBus slot. The front edge of the CCTL2 card contains a bank of five LEDs as shown in Figure 16, one red LED for each interface slot in the ciscoBus, and a green (boot) LED to indicate a successful boot procedure.
One red LED will be on for each correctly connected ciscoBus card using the correct version of microcode. It will not be on if the card is incorrectly connected or if the microcode version is wrong.
On power up, all five LEDs are on, indicating that the CCTL2 card is active. Once the system is booted, and the ciscoBus controller card microcode has completed its discovery phase, the only red LEDs will be those on that indicate the presence of a card in a ciscoBus slot. The green LED is also on to indicate a successful boot operation. Figure 16 illustrates which LED will be on to indicate the presence of a card in the ciscoBus slot. The numbers above each LED (3, 2, 1, and0 from left to right) indicate the ciscoBus slot number assigned to that LED.
Each FDDI applique contains a bank of nine LEDs, which indicate the current line state of each of the two physical connections on the card. The applique LEDs are shown in Figure 17, and their line states are listed in Table 6.
| 0 | 1 | 2 | State |
|---|---|---|---|
| On | On | On | Line State Unknown (LSU) |
| On | On | Off | Halt Line State (HLS) |
| On | Off | On | Master Line State (MLS) |
| On | Off | Off | Active Line State (ALS) |
| Off | On | On | Noise Line State (NLS) |
| Off | On | Off | Quiet Line State (QLS) |
| Off | Off | On | Idle Line State (ILS) |
| Off | Off | Off | Elasticity Buffer Overflow/Underflow (OVUF) |
When the ring is operational (when the line protocol is up), the LEDs for each physical connection (A and B) will oscillate between ILS, ALS, and MLS. ILS will predominate, so LED 2 will glow most brightly; LED 0 will be slightly dimmer; and LED 1 will be almost completely dark. The X3T9.5 FDDI specification explains the meaning of these line states in detail.
When the LEDs show that the applique is installed correctly, use EXEC show commands to verify that the new FDDI interface is properly recognized by the system. When the system is started, the interface cards query the appliques for interface information.
The EXEC command show controller fddi displays the current internal status of the C2FCIT card(s). The first line of the display shows the FDDI interface hardware version (type) and microcode version. It also indicates that the system has identified your new interface; however, it does not indicate the state of the line or protocol.
Following is sample output of the show controller fddi command:
Router# show controller fddi
Fddi0 - hardware version 7.0, microcode version 10.3
Phy-A registers:
cr0 4, cr1 4, cr2 0, status 3, cr3 0
Phy-B registers:
cr0 2, cr1 0, cr2 0, status 5, cr3 0
FORMAC registers:
irdtlb 73DF, irdtneg F85E, irdthtt 8473, irdmir FFFF0BDC
irdtrth F85F, irdtmax FBC5, irdtvxt 8585, irdstmc 0810
irdmode 6A20, irdimsk 0000, irdstat 8060, irdtpri 0000
FDDI-T registers
ccb: 002C cmd: 0006 fr: 000F mdptr: 0000 mema: 0000
icb: 00C0 arg: 0003 app: 0004 mdpg: 0000 af: 0700
clm: E002 bcn: E016 clbn: 0168 rxoff: 0020 en: 0001
clmbc: 8011 bcnbc: 8011 robn: 0005 park: 0000 fop: 94F0
txchn: 0000 pend: 0000 act: 0000 tail: 0000 cnt: 0000
state: 0003 check: 0000 eof: 0000 tail: 0000 cnt: 0000
rxchn: 0000 buf0: 03C0 nxt0: 03A8 eof: 0000 tail: 0000
eofch: 0000 buf1: 03B4 nxt1: 039C pool: 0052 err: 005C
head: 096C cur: 0000 t0: 0030 t1: 0001 t2: 007D
tail: 096C cnt: 0001 t3: 0000 rxlft: 002E used: 0000
txq_s: 0016 txq_f: 0016 Aarm: 0000 Barm: 1388 fint: 94F0
Router#
The EXEC command show controller cbus displays the current internal status of the ciscoBus card, as well as the status of all other ciscoBus cards being used (including the C2FCIT).
Following is sample output of the show controller cbus command:
Router# show controller cbus
ciscoBus 0, controller type 6.0, microcode version 11.0
512 Kbytes of main memory, 128 Kbytes cache memory
88 1520 byte buffers, 32 4480 byte buffers, 50 4484 byte buffers
1044 byte system buffer
Restarts: 0 line down, 0 hung output, 0 controller error
FDDI-T 0, controller type 7.0, microcode version 10.3
Interface 0 is Fddi0, station address 0000.0c01.72c0 (bia 0000.0c01.72c0)
50 buffer RX queue threshold, 51 buffer TX queue limit, buffer size 4484 ift 0006, rql 46, tq 0000 0000, tql 50
To obtain more information about the interfaces, such as the state of the lines and protocol types, use the EXEC command show interface fddi unit (where unit is the unit address of the desired interface) to display statistics about a particular FDDI interface in the router.
The first line of the show interface fddi unit command display names the interface (FDDI) and its unit number (0) and indicates whether the hardware and line protocol are up or down.
Following is sample output of the show interface fddi unit command:
Router# show interface fddi 0
Fddi 0 is up, line protocol is up
Hardware type is cBus Fddi, hardware address is aa00.0400.0134
Internet address is 111.111.1.1, subnet mask is 255.255.255.0
MTU 4532 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255
Encapsulation is SNAP, loopback is not set, keepalive is not set
ARP type: SNAP
Phy-A state is active, neighbor is B, cmt signal bits 08/20C, status ILS
Brk 1, Con 1, Tra 0, Nxt 11, Sig 10, Join 1, Vfy 1, Act 1
Phy-B state is active, neighbor is A, cmt signal bits 20C/08, status ALS
Brk 1, Con 1, Tra 0, Nxt 11, Sig 10, Join 1, Vfy 1, Act 1
CFM is through A, token rotation 5000 usec, ring operational 0:01:42
Upstream neighbor aa00.0400.6608, downstream neighbor 0000.0000.0000
Last input 0:00:00, output 0:00:00, output hang never
Last clearing of "show interface" counters never
Output queue 0/40, 0 drops; input queue 0/75, 31 drops
Five minute input rate 9000 bits/sec, 9 packets/sec
Five minute output rate 3000 bits/sec, 6 packets/sec
6813620 packets input, 1756956503 bytes, 31 no buffer
Received 1794204 broadcasts, 0 runts, 0 giants
691 input errors, 0 CRC, 691 frame, 0 overrun, 0 ignored, 0 abort
6047443 packets output, 551753389 bytes, 190 underruns
0 output errors, 0 collisions, 5 interface resets, 0 restarts
8 transitions
Router#
Some aspect of the hardware is not functioning properly if the line protocol is down (in the first line of the above sample output). Ensure that the network interface is properly connected and terminated.
In addition to the show commands already described, two new commands are available with the Software Release 9.1 or later C2FCIT card: [no] fddi encapsulate and [no] fddi if-cmt. The command fddi encapsulate is used to put the C2FCIT interface into encapsulation mode when bridging. In this mode, the C2FCIT card will interoperate with earlier C2FCI or C2FCIT encapsulating interfaces on the same ring when bridging.
The command no fddi encapsulate will turn off the encapsulation mode and return the C2FCIT interface back to its native "pure" transparent (nonencapsulating) mode.
The fddi encapsulate command can only be used with C2FCIT interfaces because the C2FCI card is always in encapsulating bridge mode.
The command fddi if-cmt is used to enable the new configuration management (CMT) feature that is now in the microcode on the C2FCIT card. This feature is on by default, but may be turned off with the no fddi if-cmt command. This command would typically be used when you are working with a new piece of FDDI equipment and bringing the ring up presents a problem. The "cmt-plus" microcode will be disabled using the no fddi if-cmt command, and the debug fddi-cmt-events feature will be turned on. This enables the main system code rather than the CMT microcode to perform the CMT function while debugging output is generated.
After the FDDI module installation (or microcode upgrade) tests successfully, take the following steps:
Step 1 Turn OFF the system power and unplug the power cable.
Step 2 Replace and secure top cover and front panel of the router.
Step 3 Install the system in the network.
This completes the installation of the FDDI card and FDDI applique.
This procedure is required only if you need to change or upgrade the microcode EPROM device on your CSC-C2FCIT card from Microcode Versions 10.0 (the initial release), 10.1, or 10.2 to Version 10.3. Microcode Version 10.3 requires Software Release 9.1(1) or later.
Before proceeding, use the show version command to ensure that the current system software is Software Release 9.1(1) or later. As shown in the following partial display, the first line of the show version output indicates the current software version, which is 9.1(8) in this example:
router# show version
GS Software (GS3-BFX), Version 9.1(8)
Copyright (c) 1986-1993 by cisco Systems, Inc.
Compiled Wed 03-Feb-93 02:24
Following are the tools and parts you need to upgrade the C2FCIT card:
| Caution To prevent ESD damage to the EPROM, be sure to follow the procedures described in the section "Preventing Electrostatic Discharge Damage" on page 8. |
Following is the procedure for removing the C2FCIT card from the chassis.
| Warning To avoid possible shock hazard or damage to the system cards, turn OFF power to the chassis before accessing and removing any cards. |
Step 1 Remove the front panel according to the procedure in the section "Chassis Access Procedure" on page 14.
Step 2 Slip on an ESD-preventive wrist strap and connect it to the chassis as described in the section "Preventing Electrostatic Damage" on page 8. To channel ESD voltages to ground, make certain the power cord is connected, but that power is OFF.
Step 3 Position the chassis so that the open card cage is facing you for the remainder of this procedure.
Step 4 Note the positions of each of the four ribbon cables attached to the connectors on the front edge of the C2FCIT card (see Figure 18); they should be labeled as shown in Table 4. If not, label them so that you reconnect them to the correct ports when you replace the card.
Step 5 Disconnect the four ribbon cables from the front of the C2FCIT card. It may be necessary to disconnect cables from other cards in order to pull the C2FCIT out of the card cage. If so, label the cables and their corresponding ports before disconnecting them.
Step 6 Use your thumbs to pull the ejector levers out and away from the card edge to loosen it and pull the card out of its slot.
Step 7 Remove the C2FCIT card from the card cage slot and place it on an antistatic mat or antistatic foam in the orientation shown in Figure 18.
Following is the procedure for replacing components on the C2FCIT card:
Step 1 Referring to Figure 18, locate the microcode EPROM (socket position U32) in the lower right corner of the C2FCIT card. (With the card in this position, the EPROM label might appear upside down.) Note the position of the notch (see Figure 18) in the end of the EPROM and socket so that you can place the new EPROM correctly.
Step 2 Use a chip extractor to remove the EPROM component from socket U32. If you do not have a chip extractor available, carefully use the tip of the screwdriver blade to gently pry the component out of its socket.
Step 3 Align the notch on the new EPROM (Part Number 17-0876-05) with the notch in the U32 socket. Ensure that the pins are aligned with the socket, then insert the new component. Do not rely on the orientation of the label to correctly position the new EPROM.
| Caution When inserting a new component, be very careful not to break or bend any of the pins. To straighten a bent pin, use needlenose pliers. If a pin breaks or if the device is installed backwards when power is turned ON, contact a customer service representative to obtain a replacement because, in both cases, the device is rendered unusable. |
Step 4 Referring to Figure 18, locate the serial PROM component (socket position U34) toward the rear of the card near the bus connector. Note the position of the notch.
Step 5 Use a chip extractor or small flat-blade screwdriver to remove the serial PROM component from the U34 socket.
Step 6 Align the notch on the new serial PROM (Part Number 17-0878-04) with the notch in the U34 socket. Ensure that the pins are aligned with the socket, then insert the new component.
| Caution To prevent damaging the new EPROM and PROM components, ensure that you replace each component with the notched end in the correct orientation. Align the notch on the new component with the notch on the socket. Do not use the label on the component as an indicator for correct orientation. |
Step 7 Replace the card in the card cage. Place your thumbs on the ejector levers, and push the card in firmly until it snaps into place and is firmly seated in the slot.
Step 8 Looking at the four connectors on the front edge of the C2FCIT card, attach the ribbon cables from left to right. Refer to the section "Connecting Internal and External Cables" on page 20.
Step 9 Attach any cables that you removed from other cards.
Step 10 Turn ON power to the system for an installation check, which is described in the section "Testing the Installation" on page 23.
To verify the microcode version for the C2FCIT card after the system boots successfully, use the show controller fddi command as follows:
router# show controller fddi
Fddi0 - hardware version 7.3, microcode version 10.3
Phy-A registers:
cr0 4, cr1 0, cr2 0, status 6, cr3 0
Phy-B registers:
cr0 4, cr1 4, cr2 0, status 6, cr3 0
FORMAC registers:
irdtlb 73A4, irdtneg F85E, irdthtt 5D49, irdmir FFFF0BDC
irdtrth F85F, irdtmax FBC5, irdtvxt 8585, irdstmc 0810
irdmode 6A20, irdimsk 0000, irdstat 8060, irdtpri 0000
FDDI-T registers
ccb: 0026 cmd: 0006 fr: 000F mdptr: 0000 mema: 0000
icb: 0090 arg: 0003 app: 0004 mdpg: 0000 af: 0700
clm: E002 bcn: E016 clbn: 0150 rxoff: 002A en: 0001
clmbc: 8011 bcnbc: 8011 robn: 0000 park: 0000 fop: 9078
txchn: 0000 pend: 0000 act: 0000 tail: 0000 cnt: 0000
state: 0003 check: 0000 eof: 0000 tail: 0000 cnt: 0000
rxchn: 0000 buf0: 048C nxt0: 0468 eof: 0000 tail: 0000
eofch: 0000 buf1: 0450 nxt1: 0498 pool: 0050 err: 005C
head: 0A44 cur: 0498 t0: 0030 t1: 0025 t2: 0028
tail: 0A44 cnt: 0001 t3: 0000 rxlft: 0041 used: 0000
txq_s: 001C txq_f: 001C Aarm: 0000 Barm: 1388 fint: 9078
For descriptions of additional commands and examples, refer to the Router Products Configuration Guide publication. If you have any problems, contact a customer service representative.
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