|
|
This appendix describes the maintenance procedures for the LightStream 1010 ATM switch processor (ASP), and includes the following sections:
Your switch is configured as specified by your order and is ready for installation and startup when it leaves the factory. As your communication requirements change, however, you might want to upgrade your system, add components, or change the initial configuration.
 | Warning
Read the installation instructions before you connect the system to its power source. |
This section describes how to replace the ASP in both the LightStream 1010 and the Catalyst 5500 chassis. The process used to remove and replace the ASP in both chassis is essentially the same, but the LightStream 1010 chassis does not support hot swapping the ASP. You must power off the Lightstream 1010 chassis before removing the ASP. The Catalyst 5500 switch supports hot swapping the ASP.
You need these parts and tools:
Take these steps:
Step 1 Enter the copy running-config tftp privileged EXEC command to copy the running configuration file to a TFTP server. Failure to save the running configuration file requires a complete ASP reconfiguration.
Step 2 Power off the LightStream 1010 ATM switch, but to channel ESD voltages to ground, do not disconnect the power cable.
 | Caution The ASP is a required system component. Removing an ASP from a LightStream 1010 ATM switch while the system is operating causes the system to shut down and might damage the processor. Power off the system before removing the ASP. |
Step 3 Attach an ESD-preventive wrist strap to your wrist and an unpainted chassis surface.
Step 4 Disconnect all cables from the ASP.
Step 5 Use a flat-blade screwdriver to loosen the captive installation screws at the left and right sides of the ASP. (See Figure A-1.)
Step 6 Grasp the left and right ejector levers between your thumbs and index fingers and simultaneously pull outward on the levers to release the ASP from the backplane connector. (See Figure A-1.)
Step 7 Grasp the ASP faceplate with one hand and place your other hand under the carrier to support and guide the module out of the slot. Avoid touching the card.
Step 8 Carefully pull the ASP straight out of the slot, keeping your other hand under the carrier to guide it. Keep the module at a 90-degree orientation to the backplane.
Step 9 Place the removed ASP on an antistatic mat.
Step 10 Install the new ASP in the chassis. (For more information, refer to the section "Installing the ASP" in the chapter "Installing the ASP.")
Step 11 Use a flat-blade screwdriver to tighten the captive installation screws at the left and right sides of the ASP.
Step 12 Reconnect all cables to the ASP.
Step 13 Power on the system.
Step 14 Enter the copy tftp running-config privileged EXEC command to retrieve the running configuration file from the TFTP server where you copied it earlier.
The type of feature card, software features, and the amount of traffic on the switch determine the amount of DRAM required on the ASP. As your network changes, you might need to upgrade the DRAM. Table A-1 describes the minimum DRAM requirements.
| VC1/SVCs2 | Without ATM Accounting | With ATM Accounting |
|---|---|---|
15,000 to 26,000 VCs/ | 64 MB | |
25,000 to 43,000 VCs/ | 64 MB | 64 MB |
42,000 to 64,000 VCs/ | 64 MB | 64 MB |
| 1VC = virtual circuit. 2SVC = switched virtual channels. 3FC-PCQ = feature card per-class queueing. 4FC-PFQ = feature card per-flow queueing. |
When upgrading the DRAM SIMMs, both SIMMs must be the same size and speed, as described in Table A-2. The maximum DRAM configuration is 64 MB.
| Configuration | Number of DRAM SIMMs | Size of DRAM SIMMs |
|---|---|---|
32 MB | 2 | 16 MB |
64 MB | 2 | 32 MB |
When purchasing new DRAM SIMMs, make sure both SIMMs meet the following specifications:
You will need these parts and tools:
Take these steps:
Step 1 Power off the LightStream 1010 ATM switch, but to channel ESD voltages to ground, do not disconnect the power cable.
| Caution Do not remove the ASP while the LightStream 1010 ATM switch is powered on. Removing the ASP while the power is on might damage the processor. |
Step 2 Attach an ESD-preventive wrist strap to your wrist and an unpainted chassis surface.
Step 3 Disconnect all cables from the ASP.
Step 4 Use a flat-blade screwdriver to loosen the captive installation screws at the left and right sides of the ASP and then slide it out of the chassis. (For more information, refer to the section "Removing the ASP" earlier in this appendix.)
Step 5 Place the ASP on an antistatic mat. Position the ASP so that the edge connector is away from you, and the faceplate is toward you. (See Figure A-2.)
Step 6 Locate the two DRAM SIMMs at the front right corner of the ASP. (See Figure A-2.)
Step 7 Place your index fingers on the sides of a SIMM socket and your thumbs on the spring clips, as shown in Figure A-3.
Step 8 Press outward on the spring clips with your thumbs to release the DRAM SIMM from the SIMM socket. (See Figure A-3.)
Step 9 Tilt the DRAM SIMM upward and remove it from the SIMM socket. Handle the edges of the DRAM SIMM card only; avoid touching the memory modules, pins, or metal traces along the socket edge.
Step 10 Place the DRAM SIMM in an antistatic bag to protect it from ESD damage.
Step 11 Repeat Steps 7 through 10 to remove the second DRAM SIMM.
This completes the procedure for removing the DRAM SIMMs. Proceed to the next section to install the new DRAM SIMMs.
Take these steps:
Step 1 Place the ASP in the same orientation as in the previous procedure (with the edge connectors facing away from you and the faceplate toward you).
Step 2 Remove a new DRAM SIMM from its antistatic bag.
Step 3 Hold the SIMM component side up with the connector edge (the edge with metal fingers) facing downward, as shown in Figure A-4.
| Caution Handle SIMMs by the card edges only. SIMMs are sensitive components that can be shorted by mishandling. |
Step 4 Make sure the polarization notch is at the right side, as shown in Figure A-5, and insert the new DRAM SIMM by sliding the end with the metal fingers into the SIMM socket at a slight angle. Fill the SIMM socket farthest from you first.
| Caution When inserting DRAM SIMMs, use firm but not excessive pressure. If you damage a SIMM socket, you must return the ASP to the factory for repair. |
Step 5 Gently rotate the SIMM down into place until the spring clips on both sides snap into place. (See Figure A-6.)
Step 6 Repeat Steps 2 through 5 for the remaining DRAM SIMM.
Step 7 Reinstall the ASP in the chassis. (For more information, refer to the section "Installing the ASP" in the chapter "Installing the ASP.")
Step 8 Use a flat-blade screwdriver to tighten the captive installation screws at the left and right sides of the ASP.
Step 9 Power on the system.
This completes the procedure for replacing the DRAM SIMMs.
If the system fails to boot properly, or if the console terminal displays a checksum or memory error, make sure that:
If after several attempts the system fails to restart properly, contact a service representative for assistance. Before you call, make note of any error messages, unusual LED states, or any other indications that might help solve the problem.
The Flash memory SIMM stores the system image (system code software). The default Flash memory configuration is 8 MB. You can increase the amount of Flash memory from 8 to 16 MB by replacing the 8-MB SIMM with a 16-MB SIMM.
The size of the system image and the cumulative size of any additional files stored in Flash memory determine the amount of Flash memory required on the ASP. If you are storing multiple system images, you might need to upgrade the Flash memory SIMM.
When purchasing a new Flash memory SIMM, make sure it meets the following specifications:
You will need these parts and tools:
Take these steps:
Step 1 If you are storing the system code on the internal Flash memory SIMM, enter the copy flash tftp EXEC command to back up the system code. The system code is lost when you replace the SIMM with another one. If you are storing the system code on a Flash memory card in PCMCIA slot 0 or 1, skip this step and proceed to the next step.
Step 2 Power off the LightStream 1010 ATM switch, but to channel ESD voltages to ground, do not disconnect the power cable.
| Caution Do not remove the ASP while the LightStream 1010 ATM switch is powered on. Removing the ASP while the power is on might damage the processor. |
Step 3 Attach an ESD-preventive wrist strap to your wrist and an unpainted chassis surface.
Step 4 Disconnect all cables from the ASP.
Step 5 Use a flat-blade screwdriver to loosen the captive installation screws at the left and right sides of the ASP and then slide it out of the chassis. (For more information, refer to the section "Removing the ASP" earlier in this appendix.)
Step 6 Place the ASP on an antistatic mat or bag. Position the ASP so that the edge connector is away from you, and the faceplate is toward you, as shown in Figure A-7.
Step 7 Locate the Flash memory SIMM at the front right corner of the ASP. (See Figure A-7.)
Step 8 Place your index fingers on the sides of the SIMM socket and your thumbs on the spring clips, as shown in Figure A-8.
Step 9 Press outward on the spring clips with your thumbs to release the Flash memory SIMM from the SIMM socket. (See Figure A-8.)
Step 10 Tilt the Flash memory SIMM upward and remove it from the SIMM socket. Handle the edges of the SIMM only; avoid touching the memory modules, pins, or metal traces along the socket edge.
Step 11 Place the Flash memory SIMM in an antistatic bag to protect it from ESD damage.
This completes the procedure for removing the Flash memory SIMM. Proceed to the next section to install the new Flash memory SIMM.
Take these steps:
Step 1 Place the ASP in the same orientation as in the previous procedure (with the edge connectors facing away from you and the faceplate toward you).
Step 2 Remove the new Flash memory SIMM from its antistatic bag.
Step 3 Hold the SIMM component side up with the connector edge (the edge with metal fingers) facing downward, as shown in Figure A-9.
| Caution Handle SIMMs by the card edges only. SIMMs are sensitive components that can be shorted by mishandling. |
Step 4 Make sure the polarization notch is at the right side, as shown in Figure A-10, and insert the new Flash memory SIMM by sliding the end with the metal fingers into the SIMM socket at a slight angle.
| Caution When inserting the Flash memory SIMM, use firm but not excessive pressure. If you damage the SIMM socket, you must return the ASP to the factory for repair. |
Step 5 Gently rotate the SIMM down into place until the spring clips on both sides snap into place. (See Figure A-11.)
Step 6 Reinstall the ASP in the chassis. (For more information, refer to the section "Installing the ASP" in the chapter "Installing the ASP.")
Step 7 Use a flat-blade screwdriver to tighten the captive installation screws at the left and right sides of the ASP.
Step 8 Power on the system.
Step 9 Restore any files you copied to a TFTP server earlier by entering the copy tftp flash privileged EXEC command.
This completes the procedure for replacing the Flash memory SIMM.
If the system fails to boot properly, or if the console terminal displays a checksum or memory error, make sure that:
If after several attempts the system fails to restart properly, contact a service representative for assistance. Before you call, make note of any error messages, unusual LED states, or any other indications that might help solve the problem.
The feature card is a daughter card on the ASP that provides a number of value-added features in addition to basic switch functionality. As new standards evolve and more advanced features are developed, you might need to upgrade the feature card.
You will need the following parts and tools:
Take these steps:
Step 1 Power off the LightStream 1010 ATM switch, but to channel ESD voltages to ground, do not disconnect the power cable.
| Caution Do not remove the ASP while the LightStream 1010 ATM switch is powered on. Removing the ASP while the power is on might damage the processor. |
Step 2 Attach an ESD-preventive wrist strap to your wrist and an unpainted chassis surface.
Step 3 Disconnect all cables from the ASP.
Step 4 Use a flat-blade screwdriver to loosen the captive installation screws at the left and right sides of the ASP and then slide it out of the chassis. (For more information, refer to the section "Removing the ASP" earlier in this appendix.)
Step 5 Place the removed ASP on an antistatic mat.
Step 6 Position the ASP so that the edge connector is away from you, and the faceplate is toward you. (See Figure A-12.)
Step 7 Locate the feature card installed on the ASP. The feature card is a large daughter card, almost half the size of the ASP. (See Figure A-12.)
Step 8 Remove the six Phillips screws that secure the feature card to the ASP. (See Figure A-12.)
| Caution To avoid breaking the feature card when removing it, do not grasp the feature card from the sides farthest away from the connectors. (See Figure A-13.) |
Step 9 Grasp the sides of the feature card nearest the connectors, and pull upward to disconnect the feature card from the two female connectors on the ASP. (See Figure A-13.)
Step 10 Store the feature card in an antistatic bag to protect it from ESD damage.
Take these steps:
Step 1 Remove the new feature card from the ESD-preventive bag.
Step 2 Carefully align the new feature card with the two female connectors on the ASP. (See Figure A-14.)
Step 3 Make sure that the mounting holes are aligned with the standoffs on the ASP.
| Caution To prevent breaking the feature card during installation, press gently but firmly on the feature card connectors. (See Figure A-15.) |
Step 4 Carefully press the feature card male connectors into the female connectors on the ASP. (See Figure A-15.)
| Caution To prevent damaging the feature card, do not overtighten the mounting screws when reinstalling them. |
Step 5 Reinstall the six Phillips mounting screws removed earlier. (See Figure A-12.)
Step 6 Reinstall the ASP in the chassis. (For more information, refer to the section "Installing the ASP" in the chapter "Installing the ASP.")
Step 7 Use a flat-blade screwdriver to tighten the captive installation screws at the left and right sides of the ASP.
Step 8 Power on the system. It takes about 30 seconds to initialize the feature card.
This completes the procedure for replacing the feature card.
|
|