Table Of Contents
Maintenance
3.1 Air Filter Inspection and Replacement
3.1.1 Reusable Air Filter
3.1.2 Disposable Air Filter
3.2 Fan-Tray Assembly Replacement
3.3 Alarm Interface Panel Replacement
3.4 Replace the Alarm Interface Panel
3.5 System Reset
3.6 Database Backup and Restore
3.7 Reverting to an Earlier Software Load
3.8 Card Replacement
3.9 TCC Card to TCC+ Card Upgrade
3.10 XC Card to XCVT Card Upgrade
3.11 XC/XCVT Card to XC10G Card Upgrade
3.12 DS3/DS3N Card to DS3E/DS3EN Card Upgrade
3.13 Span Upgrades
3.13.1 Span Upgrade Wizard
3.13.2 Manual Span Upgrades
3.14 Protection Group Switching
3.15 Electrical Interface Assembly Replacement
3.15.1 EIA Types
3.15.2 EIA Replacement Procedures
3.16 Fiber Cleaning
3.17 Powering Down a Node
Maintenance
This chapter describes maintenance information and procedures for Cisco ONS 15454, including:
•
Air filter inspection and replacement
•Fan-tray assembly replacement
•Alarm interface panel replacement
•System reset
•Database backup and restore
•Reverting to an earlier software load
•Card replacement
•TCC card to TCC+ card upgrade
•XC card to XCVT card upgrade
•XC/XCVT card to XC10G card upgrade
•DS3/DS3N card to DS3E/DS3EN card upgrade
•Span upgrades
•Protection group switching
•Electrical interface assembly (EIA) replacement
•Fiber cleaning
•Powering down a node
3.1 Air Filter Inspection and Replacement
The ONS 15454 contains an air filter that you should remove and visually inspect approximately every 30 days, depending on the cleanliness of the operating environment. NEBS 3E and later versions of the ONS 15454 use a reusable air filter that is installed either beneath the fan-tray assembly or in the optional external filter brackets. Earlier versions of the ONS 15454 use a disposable air filter that is installed beneath the fan-tray assembly only. For more information about filter brackets and air filter installation, see the "Installation" chapter of the Cisco ONS 15454 Installation and Operations Guide.
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
3.1.1 Reusable Air Filter
The reusable filter is made of a gray, open-cell, polyurethane foam that is specially coated to provide fire and fungi resistance. NEBS 3E and later versions of the ONS 15454 use a reusable air filter. Figure 3-1 illustrates a reusable fan-tray air filter in an external filter bracket. When the filter is dirty, remove the filter and clean it by either vacuuming the filter or running water through it. Because the filter material is delicate, only a very low-power vacuum should be used. If you are cleaning with water, make sure the filter is completely dry (dry time is at least eight hours) before replacing it in the fan-tray assembly. Spare filters should be kept in stock.
Figure 3-1 A reusable fan-tray air filter in an external filter bracket
Procedure: Inspect and Clean the Reusable Air Filter
Step 1 If the air filter is installed in the external filter brackets, slide the filter out of the brackets while being careful not to dislodge any dust that may have collected on the filter and proceed to Step 3. If the filter is installed beneath the fan tray and not in the external filter brackets, open the ONS 15454 door and fold out the retractable handles at each outside edge of the fan tray.
Step 2 Slide the fan-tray assembly out of the shelf assembly by gently pulling the handles.
Step 3 Visually inspect the air filter material for dirt and dust.
Step 4 If the reusable air filter contains a concentration of dirt and dust, either vacuum the filter or wash the filter under a faucet with a light detergent.
Note If possible, cleaning should take place outside the operating environment to avoid releasing dirt and dust near the equipment.
Step 5 If you washed the filter, allow it to completely air dry for at least eight hours and install a spare filter (spare filters should be kept in stock) in its place:
Warning Do not put a damp filter back in the ONS 15454.
a. If the air filter is installed in the external filter brackets, slide the air filter all the way to the back of the brackets to complete the procedure.
b. If the filter is installed beneath the fan-tray assembly, slide the air filter into the recessed compartment at the bottom of the shelf assembly. Put the front edge of the air filter flush against the front edge of the recessed compartment.
Step 6 Push the fan tray back into the shelf assembly.
Caution If the fan tray does not slide all the way to the back of the shelf assembly, pull the fan tray out and readjust the position of the reusable filter until the fan tray fits correctly.
Note On a powered-up ONS 15454, the fans start immediately after the fan-tray assembly is correctly inserted.
Step 7 Rotate the retractable handles back into their compartments and close the ONS 15454 front door.
3.1.2 Disposable Air Filter
Versions prior to the NEBS 3E version of the ONS 15454 use a disposable air filter. The disposable filter is made of spun white polyester that is flame retardant. This disposable filter is not designed to be cleaned. You can order air filter replacements from Cisco (Cisco P/N 47-01-00001) or from Universal Air Filter, model PE-5 (Universal Air Filter Co., 1624 Sauget Ind. Parkway, Sauget, IL 62206).
Note The disposable air filter is installed beneath the fan-tray assembly, so you must remove the fan-tray assembly to inspect and replace the disposable air filter.
Procedure: Inspect and Replace the Disposable Air Filter
Step 1 Remove the front door of the shelf assembly.
Step 2 Open the front covers of the fiber management area.
Step 3 Lower the hinged panels in front of the cable management tray.
Step 4 Slide the fan-tray assembly out of the shelf assembly (see Figure 3-2).
Figure 3-2 Inserting or removing the fan-tray assembly
Step 5 Carefully slide the air filter out of the shelf assembly (see Figure 3-3). Be careful not to dislodge any dust that may have collected on the filter.
Step 6 Visually inspect the white filter material for dirt and dust.
Step 7 If the air filter shows a heavy concentration of dirt and dust, replace it with a new filter by sliding the new filter into the bottom of the shelf assembly. Make sure that the front of the filter is flush with the front of the shelf assembly and that the air flow indicators on the filter point upwards.
Figure 3-3 Inserting or removing a disposable fan-tray air filter
Step 8 Slide the fan-tray assembly into the shelf assembly until the electrical plug at the rear of the tray plugs into the corresponding receptacle on the backplane.
Step 9 To verify that the tray is plugged into the backplane, ensure that the LCD on the front of the fan-tray assembly is activated.
Step 10 Close the cable management tray.
Step 11 Raise the hinged panel at the front of the cable management tray.
Step 12 Close the front covers of the fiber management area.
Step 13 Replace the front door of the shelf assembly.
3.2 Fan-Tray Assembly Replacement
If one or more fans fail on the fan-tray assembly, replace the entire assembly. You cannot replace individual fans. The red Fan Fail LED on the front of the fan tray illuminates when one or more fans fail. The red Fan Fail LED clears after you install a working fan tray.
Caution The 15454-FTA3 fan-tray assembly can only be installed in ONS 15454 Release 3.1 and later shelf assemblies (15454-SA-ANSI, P/N: 800-19857). It includes a pin that does not allow it to be installed in ONS 15454 shelf assemblies released before ONS 15454 Release 3.1 (15454-SA-NEBS3E, 15454-SA-NEBS3, and 15454-SA-R1, P/N: 800-07149). Equipment damage can result from attempting to install the 15454-FTA3 in a non-compatible shelf assembly.
Note The 10-Gbps compatible shelf assembly (15454-SA-ANSI) and fan-tray assembly (15454-FTA3) are required with the ONS 15454 XC-10G, OC-192, and OC-48 any slot (AS) cards.
Procedure: Replace the Fan-Tray Assembly
To replace the fan-tray assembly, it is not necessary to move any of the cable management facilities. You can remove the fan-tray assembly using the retractable handles and replace it by pushing until it plugs into the receptacle on the back panel.
Caution Do not force a fan-tray assembly into place. Doing so can damage the connectors on the fan tray and/or the connectors on the back panel of the shelf assembly.
Step 1 Remove the front door of the shelf assembly.
Step 2 Fold out the retractable handles at the outside edges of the fan tray.
Step 3 Slide the fan tray out of the shelf assembly by gently pulling on the handles. Figure 3-4 shows the location of the fan tray.
Step 4 If you are replacing the fan-tray air filter and it is installed beneath the fan-tray assembly, slide the existing air filter out of the shelf assembly and replace it before replacing the fan-tray assembly.
If you are replacing the fan-tray air filter and it is installed in the external bottom bracket, you can slide the existing air filter out of the bracket and replace it at anytime.
Note The air filter will function with either side facing up but Cisco recommends that you install the filter with the metal bracing facing up against the fan tray.
For more information on the fan-tray air filter, see the "Air Filter Inspection and Replacement" section.
Step 5 Slide the fan tray into the shelf assembly until the electrical plug at the rear of the tray plugs into the corresponding receptacle on the backplane.
Step 6 To verify that the tray has plugged into the backplane, check that the LCD on the front of the fan tray is activated.
Figure 3-4 Removing or replacing the fan-tray assembly
3.3 Alarm Interface Panel Replacement
3.4 Replace the Alarm Interface Panel
This procedure replaces an existing AIP with a new AIP on an in-service system without affecting traffic. It requires a #2 phillips screw driver.
Caution Do not use a 2A AIP with a 5A fan-tray assembly; doing so will cause a blown fuse on the AIP.
Caution There is a risk of Ethernet traffic disruptions. Contact the Cisco Technical Assistance Center (TAC) at 877-323-7368 when prompted to do so in the procedure.
Caution Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
Note Perform this procedure in a maintenance window. Resetting the active TCC+ can cause a service disruption of less then 50 ms to OC-N or DS-N traffic. Resetting the active TCC+ will cause a service disruption of 3-5 minutes on all Ethernet traffic due to Spanning Tree Reconvergence.
Step 1 Ensure that all nodes in the affected network are running the same software version before replacing the AIP and repairing circuits:
a. Log into CTC.
b. In network view, click the Maintenance > Software tabs. The working software version for each node is listed in the Working Version column.
c. If you need to upgrade the software on a node, refer to the Cisco ONS 15454 Software Upgrade Guide for software upgrade procedures. No hardware should be changed or circuit repair performed until after the software upgrade is complete. If you do not need to upgrade software or have completed the software upgrade, proceed to Step 2.
Step 2 Record the MAC address of the old AIP:
a. Log into the node where you will replace the AIP. For login procedures, see the Cisco ONS 15454 Procedure Guide.
b. In node view, click on the Provisioning > Network tabs.
c. Record the MAC address shown in the General tab in Figure 3-5.
Figure 3-5 Find the MAC address
Step 3 Call Cisco TAC at 877-323-7368 for assistance in replacing the AIP and maintaining the original MAC address.
Step 4 Unscrew the five screws that hold the lower backplane cover in place ( Figure 3-6).
Step 5 Grip the lower backplane cover and gently pull away from the backplane.
Figure 3-6 Lower backplane cover
Step 6 Unscrew the two screws that hold the AIP cover in place.
Step 7 Grip the cover and gently pull away from the backplane.
Note On the 15454-SA-NEBS3E, 15454-SA-NEBS3, and 15454-SA-R1 (P/N: 800-07149) shelves the AIP cover is clear plastic. On the 15454-SA-ANSI shelf (P/N: 800-19857), the AIP cover is metal.
Step 8 Grip the AIP and gently pull away from the backplane.
Step 9 Disconnect the fan-tray assembly power cable from the AIP.
Step 10 Set the old AIP aside for return to Cisco.
Caution The type of shelf the AIP resides in will determine the version of AIP that will replace the failed AIP. The 15454-SA-ANSI shelf (P/N: 800-19857) currently uses the 5A AIP, (P/N: 73-7665-01). The 15454-SA-NEBS3E, 15454-SA-NEBS3, and 15454-SA-R1 (P/N: 800-07149) shelves and lower currently use the 2A AIP (P/N: 73-5262-01).
Caution Do not put a 2A AIP (P/N: 73-5262-01) into a 15454-SA-ANSI shelf (P/N: 800-19857); doing so will cause a blown fuse on the AIP.
Step 11 Attach the fan-tray assembly power cable to the new AIP.
Step 12 Place the new AIP on the backplane by plugging the panel into the backplane using the DIN connector.
Step 13 Replace the AIP cover over the AIP and secure the cover with the two screws.
Step 14 Replace the lower backplane cover and secure the cover with the five screws.
Step 15 In node view, click on the Provisioning > Network tabs.
Caution Cisco recommends TCC+ resets be performed in a maintenance window to avoid any potential service disruptions.
Step 16 Reset the standby TCC+:
a. In node view, right click on the standby TCC+ card and choose Reset Card.
b. Click Yes on the Resetting Card dialog box. As the card resets, a loading (Ldg) indication will appear on the card in CTC.
Note The reset will take approximately five minutes. Do not perform any other steps until the reset is complete.
Step 17 Reset the active TCC+:
a. In node view, right click on the active TCC+ card and choose Reset Card.
b. Click Yes on the Resetting Card dialog box. As the card resets, a Ldg indication will appear on the card in CTC.
Note The reset will take approximately five minutes and CTC will lose its session with the node.
Step 18 Click File from the menu bar and choose Exit to exit the CTC session.
Step 19 Login back into the node. At the Login dialog box, choose (None) from the Additional Nodes pull-down menu.
Step 20 Record the new MAC address:
a. In node view, click on the Provisioning > Network tabs.
b. Record the MAC address shown in the General tab.
Step 21 In node view, click on the Circuits tab. Note that all circuits listed are in an INCOMPLETE state.
Step 22 In node view, choose Tools from the menu bar and click Repair Circuits ( Figure 3-7). The Circuit Repair dialog box is displayed.
Figure 3-7 Repair Circuits in the Menu Bar
Step 23 Read the instructions in the Circuit Repair dialog box ( Figure 3-8). If all the steps in the dialog box have been completed, click Next>. Ensure you have the old and new MAC addresses.
Figure 3-8 Repairing circuits
Step 24 The Node MAC Addresses dialog box displays ( Figure 3-9):
a. From the Node pull down menu, choose the name of the node where you replaced the AIP.
b. In the Old MAC Address field, enter the old MAC address that was recorded in Step 2.
c. Click Next.
Figure 3-9 Recording the old MAC address before replacing the AIP
Step 25 The Repair Circuits dialog box displays ( Figure 3-10). Read the information in the dialog box and click Finish.
Figure 3-10 Circuit repair information
Note The CTC session will freeze until all circuits are repaired. Circuit repair can take up to five minutes or more depending on the number of circuits provisioned.
Step 26 When the circuit repair is complete, the Circuits Repaired dialog box will display.
Step 27 Click OK.
Step 28 In the new node view, click on the Circuits tab. Note that all circuits listed are in an ACTIVE state. If all circuits listed are not in an ACTIVE state, call Cisco TAC at 877-323-7368 for assistance.
Step 29 Return the defective AIP. You must follow the standard Return Material Authorizations (RMA) procedures; call (800) 553-NETS (6387) if you do not have an RMA number.
3.5 System Reset
You can reset the ONS 15454 TCC+ cards by using the Cisco Transport Controller (CTC) software, or by physically reseating a TCC+ card (card pull). A software-initiated reset reboots the TCC+ and reloads the operating system and the application software. Additionally, a card pull reset temporarily removes power from the TCC+ and clears all buffer memory.
You can apply a software-initiated reset to either an active or standby TCC+ without affecting traffic, but you should only perform a card pull on a standby TCC+. If you need to perform a card pull on an active TCC+, put the TCC+ into standby mode first by performing a software-initiated reset on the card.
Note When a software-initiated reset is performed on an active TCC card or TCC+, the AIC card goes through an initialization process and also resets. The AIC card reset is normal and will happen each time an active TCC card goes through a software-initiated reset.
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
Procedure: Perform a Software-Initiated Reset
Step 1 Log into CTC.
Step 2 Right click on the TCC+ card to reveal a pull-down menu.
Step 3 Click Reset Card (see Figure 3-11).
Step 4 Click Yes when the "Are You Sure?" dialog box appears.
Step 5 Click OK when the "Lost connection to node, changing to Network View" dialog box appears.
Step 6 Confirm that the TCC+ is in standby mode after the reset.
Figure 3-11 Performing a software-initiated reset from the TCC+ card pull-down menu
Procedure: Perform a Card Pull
Note To determine whether you have an active or standby TCC+, position the cursor over the TCC+ card graphic to display the status.
Step 1 If you need to perform a card pull on an active TCC+ card, first perform a software-initiated reset on the active TCC+ (see the "Perform a Software-Initiated Reset" procedure).
Step 2 When the TCC+ is in standby mode, unlatch both the top and bottom ejector levers on the TCC+ card.
Step 3 Physically pull the card at least partly out of the slot until the lighted LEDs turn off.
Step 4 Wait 30 seconds. Reinsert the card and close the ejector levers.
Note The TCC+ will take several minutes to reboot and will display the amber standby LED after rebooting.
3.6 Database Backup and Restore
Each TCC+ card installed in the ONS 15454 contains two copies of the database. A save to the flash memory is written to the standby database, and the standby database then becomes the active database. The previously active database then becomes available for writing the next time. With dual TCC+s, the standby TCC+ keeps both copies of the database synchronized with the active TCC+ as changes are made so that it is ready to take over control as needed. You can also store a back-up version of the database on the workstation running CTC. Backing up the database should be part of a regular ONS 15454 maintenance program at approximately weekly intervals and should also be completed when preparing an ONS 15454 for a pending natural disaster, such as a flood or fire.
Note The following parameters are not backed up and restored: node name, IP address, mask and gateway, and IIOP port. If you change the node name and then restore a backed up database with different node names, the circuits will map to the new node name. Cisco recommends keeping a record of the old and new node names.
Caution E1000-2 cards lose traffic for approximately 90 seconds when an ONS 15454 database is restored. Traffic is lost during the period of spanning tree reconvergence. The CARLOSS alarm will appear and clear during this period.
Caution If you are restoring the database on multiple nodes, wait five minutes between each database restore.
Procedure: Back up the Database
Step 1 Log into CTC.
Step 2 Click the Maintenance > Database tabs.
Figure 3-12 Backing up the TCC+ database
Step 3 Click Backup.
Step 4 Save the database on the workstation's hard drive or on network storage. Use an appropriate file name with the .db file extension, for example, database.db.
Step 5 Click Save.
Figure 3-13 Confirming a database backup
Step 6 Click OK in the confirmation dialog box.
Procedure: Restore the Database
Step 1 Log into CTC.
Step 2 Click the Maintenance > Database tabs.
Figure 3-14 Restoring the TCC+ database
Step 3 Click Restore.
Step 4 Locate the database file stored on the workstation's hard drive or on network storage.
Step 5 Click the database file to highlight it.
Step 6 Click Open.
The DB Restore dialog box appears. A restore from another node will affect traffic.
Figure 3-15 Restoring the database—traffic loss warning
Step 7 Click Yes.
The Restore Database dialog box monitors the file transfer.
Figure 3-16 Restoring the database - in-process notification
Step 8 Wait for the file to complete the transfer to the TCC+.
Step 9 Click OK when the "Lost connection to node, changing to Network View" dialog box appears. Wait for the node to reconnect.
3.7 Reverting to an Earlier Software Load
Prior to Release 2.2.1, the ONS 15454 could not revert to an earlier software database without deleting the current database and losing both cross-connect and DCC connectivity. The revert would result in a loss of traffic until the user manually restored the previous database or recreated the existing circuits and provisioning.
Reverting to a 2.2.1 or later load will switch to the older software load and its attendant database without affecting traffic or DCC connectivity. This feature requires dual TCC+ cards and CTC software Release 2.2.1 or later as the protect version.
When you click the Activate button after a software upgrade, the TCC+ copies the current working database and saves it in a reserved location in the TCC+ flash memory. If you later need to revert to the original working software load from the protect software load, the saved database installs automatically. You do not need to restore the database manually or recreate circuits.
Tip The revert feature is useful if a maintenance window closes while you are upgrading CTC software. You can revert to the standby software load without losing traffic. When the next maintenance window opens, complete the upgrade and activate the new software load.
Note A revert to a maintenance release software load does not restore the database and no provisioning is lost. All other reverts do restore the database. (A maintenance release has a three-digit release number, e.g. 2.2.2).
Note Circuits created and provisioning performed after a software load is activated will not reinstate with a revert. The database configuration at the time of activation is reinstated after a revert. This note does not apply to maintenance reverts (e.g. 2.2.2 to 2.2.1).
Procedure: Revert to an Earlier Software Load
Step 1 Log into CTC.
Step 2 Record the IP address of that node.
Step 3 Display the CTC node view.
Step 4 Right click the standby TCC+ card to reveal a pull-down menu.
Step 5 Click Reset Card.
Step 6 Click Yes when the "Are You Sure?" dialog box appears.
Step 7 Click OK when the "Lost connection to node, changing to Network View" dialog box appears.
Step 8 Confirm that the TCC+ is in standby mode after the reset.
Step 9 Click the Maintenance > Software tabs.
Step 10 Verify that the protect software is Version 2.2.0 or later.
Step 11 Click Revert.
The Revert button activates the protect software load. The ONS 15454 reboots and loses the connection to CTC.
Step 12 Wait until the software upgrade finishes.
This may take as long as 30 minutes.
Step 13 Completely close the browser.
Step 14 Restart the browser and log back into the node using the IP address recorded in Step 2.
The browser downloads the CTC applet for the standby software load.
3.8 Card Replacement
To replace an ONS 15454 card with another card of the same type, you do not need to make any changes to the database; remove the old card and replace it with a new card. To replace a card with a card of a different type, physically remove the card and replace it with the new card, then delete the original card from CTC. Follow the "Switch Traffic and Replace an In-Service Cross-Connect Card" procedure to replace an XC/XCVT card.
Caution Removing any active card from the ONS 15454 can result in traffic interruption. Use caution when replacing cards and verify that only inactive or standby cards are being replaced. If the active card needs to be replaced, switch it to standby prior to removing the card from the node.
Note An improper removal (IMPROPRMVL) alarm is raised whenever a card pull is performed, unless the card is deleted in CTC first. The alarm will clear after the card replacement is complete.
Note In a UPSR, pulling the active XC/XCVT/XC10G without a lockout will cause UPSR circuits to switch.
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
To upgrade cards, refer to the specific upgrade procedure you need:
• "TCC Card to TCC+ Card Upgrade" section
• "XC Card to XCVT Card Upgrade" section
• "XC/XCVT Card to XC10G Card Upgrade" section
• "DS3/DS3N Card to DS3E/DS3EN Card Upgrade" section
For more information on cards and card compatibility see Chapter 4, "Card Reference."
Procedure: Switch Traffic and Replace an In-Service Cross-Connect Card
Caution Removing any active card from the ONS 15454 can result in traffic interruption. Use caution when replacing cards and verify that only inactive or standby cards are being replaced. If the active card needs to be replaced, follow the steps below to switch the XC/XCVT card to standby prior to removing the card from the node.
An XC/XCVT reset can cause a linear 1+1 OC-N protection switch or a BLSR protection switch.
Step 1 Take the following precautions before performing an XC/XCVT reset to avoid causing a linear 1+1 or BLSR protection switch:
a. Ensure the working span is active on both the local and remote nodes.
b. Ensure the working span is carrying error-free traffic (no SD or SF alarms present).
c. Lockout the protection span prior to initiating an XC/XCVT reset.
In a BLSR, place a lockout on the East and West cards of the nodes adjacent to the XC/XCVT switch node; for example, to switch the XC/XCVT on Node B, place the lockout on the West card of Node A and on the East card of Node C. No lockout is necessary on Node B. Before the lockout is set, verify that the BLSR is not switched. If a lockout is set while the BLSR is switched, traffic can be lost.
<------East [Node A] West------East [Node B] West------East [Node C] West------>
In a 1+1 protection scheme, place a lockout on the protect card and verify that the traffic is traveling over the working span before setting the lockout.
Step 2 Determine the active XC/XCVT card. The ACT/STBY LED of the active card is green. The ACT/STBY LED of the standby card is amber.
Note You can also place the cursor over the card graphic to display a pop-up identifying the card as active or standby.
Step 3 Switch the active XC/XCVT card to standby:
a. In the node view, click the Maintenance > XC Cards tabs.
b. Under Cross Connect Cards, choose Switch.
c. Click Yes on the Confirm Switch dialog box.
Note After the active XC/XCVT goes into standby, the original standby slot becomes active. This causes the ACT/STBY LED to become green on the former standby card.
Step 4 Physically remove the new standby XC/XCVT card from the ONS 15454.
Step 5 Insert the replacement XC/XCVT card into the empty slot.
The replacement card boots up and becomes ready for service after approximately one minute.
Step 6 Release the protection lockout(s).
3.9 TCC Card to TCC+ Card Upgrade
Caution The ONS 15454 Release 3.1 must operate with a matching pair of TCC+ cards.
The TCC card supports ONS 15454 Release 2.2.2 and earlier software versions. The TCC+ card supports ONS 15454 Release 2.2.0 and later software versions.
Verify that the ONS 15454 is running Release 2.2.0 software before you begin the upgrade procedure. The TCC to TCC+ upgrade process requires Release 2.2.0 to support the TCC/TCC+ mismatch that occurs briefly during the TCC to TCC+ upgrade process.
The ACT/STBY LED on the faceplate of the TCC/TCC+ card indicates whether the card is in active or standby mode. A green ACT/STBY LED indicates an active card and an amber light indicates a standby card. See Chapter 5 for more information about the TCC/TCC+ card.
Procedure: Upgrade the TCC Card to the TCC+ Card
Step 1 Physically replace the standby TCC card on the ONS 15454 with a TCC+ card.
a. Open the TCC card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm which will clear when the upgrade is complete.
c. Open the ejectors on the TCC+ card.
d. Slide the TCC+ card into the slot along the guide rails.
e. Close the ejectors.
Note The MEA (card mismatch) alarm appears because CTC recognizes a mismatch between TCC card types. Disregard this alarm; it clears by the end of the procedure.
Note It takes approximately 20 or 30 minutes for the active TCC to transfer the system software to the newly-installed TCC+. Software transfer occurs in instances where different software versions exist on the two cards. During this operation, the LEDs on the TCC+ flash Fail and then the active/standby LED flashes. When the transfer completes, the TCC+ reboots and goes into standby mode after approximately three minutes.
Step 2 Right click the active TCC card to reveal a pull-down menu.
Step 3 Click Reset Card ( Figure 3-17).
Figure 3-17 Initiating a software reset on the TCC card
Wait for the TCC to reboot. The ONS 15454 switches the standby TCC+ card to active mode.
Step 4 Verify that the remaining TCC card is now in standby mode (the ACT/STBY LED changes to amber).
Step 5 Physically replace the remaining TCC card with the second TCC+ card.
a. Open the TCC card ejectors.
b. Slide the card out of the slot.
c. Open the ejectors on the TCC+ card.
d. Slide the TCC+ card into the slot along the guide rails.
e. Close the ejectors.
The ONS 15454 boots up the second TCC+ card. The second TCC+ must also copy the system software, which can take up to 20 or 30 minutes. The MEA alarm clears when the ONS 15454 recognizes the matching TCC+s.
3.10 XC Card to XCVT Card Upgrade
This section explains how to replace dual XC cards with dual XCVT cards in an ONS 15454 with live traffic. The procedure is non-service affecting, that is, the upgrade will cause a switch less than 50 ms in duration.
Note The UNEQ-P alarm might be raised during a cross-connect card upgrade if you have E100/E1000 cards in the system. The alarm will appear and clear within a few seconds.
Procedure: Upgrade the XC Card to the XCVT Card
Upgrading XC cards to XCVT requires that the ONS 15454 is running CTC Release 2.0 or later. Two XC cards must be installed in the ONS 15454, and two XCVT cards must be available for installation. An XC switch can cause a linear 1+1 OC-N protection switch or a BLSR protection switch.
Step 1 Take the following precautions before performing an XC switch to avoid causing a linear 1+1 or BLSR protection switch:
a. Ensure the working span is active on both the local and remote nodes.
b. Ensure the working span is carrying error-free traffic (no SD or SF alarms present).
c. Lockout the protection span prior to initiating an XC reset.
In a BLSR, place a lockout on the East and West cards of the nodes adjacent to the XC switch node; for example, to switch the XC on Node B, place the lockout on the West card of Node A and on the East card of Node C. No lockout is necessary on Node B. Before the lockout is set, verify that the BLSR is not switched. If a lockout is set while the BLSR is switched, traffic can be lost.
<------East [Node A] West------East [Node B] West------East [Node C] West------>
In a 1+1 protection scheme, place a lockout on the protect card and verify that the traffic is traveling over the working span before setting the lockout.
Step 2 Determine the standby XC card. The ACT/STBY LED of the standby XC card is amber, while the ACT/STBY LED of the active XC card is green.
Note You can also place the cursor on the card graphic in CTC to display a dialog. This display identifies the card as XC: Active or XC: Standby.
Step 3 Physically replace the standby XC card on the ONS 15454 with an XCVT card:
a. Open the XC card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm, which will clear when the upgrade is complete.
c. Open the ejectors on the XCVT card.
d. Slide the XCVT card into the slot along the guide rails.
The fail LED above the ACT/STBY LED becomes red, blinks for several seconds, and turns off. The ACT/STBY LED turns amber and stays lit.
e. Close the ejectors.
Step 4 In node view, choose the Maintenance > XC Cards tabs.
Step 5 From the Cross Connect Cards menu, choose Switch.
Step 6 Click Yes on the Confirm Switch dialog box.
Note After the active XC disengages, the standby slot or first XCVT card becomes active. This causes the ACT/STBY LED on the first XCVT card to change from amber to green.
Step 7 Physically remove the now standby XC card from the ONS 15454 and insert the second XCVT card into the empty XC slot:
a. Open the XC card ejectors.
b. Slide the card out of the slot.
c. Open the ejectors on the XCVT.
d. Slide the XCVT card into the slot along the guide rails.
e. Close the ejectors.
The upgrade is complete when the second XCVT card boots up and becomes the standby XCVT.
Step 8 Release the protection lockout.
3.11 XC/XCVT Card to XC10G Card Upgrade
Note This procedure only applies to XC/XCVT cards that are installed in the 15454-SA-ANSI (Release 3.1 or later). You cannot perform this upgrade from shelves released prior to 3.1. The XC10G requires the 15454-SA-ANSI.
Note The UNEQ-P alarm might be raised during a cross-connect card upgrade if you have E100/E1000 cards in the system. The alarm will appear and clear within a few seconds.
This section explains how to upgrade dual XC/XCVT cards with dual XC10G cards in the ONS 15454-SA-ANSI with live traffic. The procedure is non-service affecting, that is, the upgrade will cause a switch less than 50 ms in duration.
Procedure: Upgrade the XC/XCVT Card to the XC10G Card
Upgrading XC/XCVT cards to XC10G requires that the ONS 15454 is running CTC Release 3.1 or later. Two XC/XCVT cards must be installed in the ONS 15454-SA-ANSI, and two XC10G cards must be available for installation. An XC/XCVT switch can cause a linear 1+1 OC-N protection switch or a BLSR protection switch.
Step 1 Take the following precautions before performing an XC/XCVT switch to avoid causing a linear 1+1 or BLSR protection switch:
a. Ensure the working span is active on both the local and remote nodes.
b. Ensure the working span is carrying error-free traffic (no SD or SF alarms present).
c. Lockout the protection span prior to initiating an XC/XCVT reset.
In a BLSR, place a lockout on the East and West cards of the nodes adjacent to the XC/XCVT switch node; for example, to switch the XC/XCVT on Node B, place the lockout on the West card of Node A and on the East card of Node C. No lockout is necessary on Node B. Before the lockout is set, verify that the BLSR is not switched. If a lockout is set while the BLSR is switched, traffic can be lost.
<------East [Node A] West------East [Node B] West------East [Node C] West------>
In a 1+1 protection scheme, place a lockout on the protect card and verify that the traffic is traveling over the working span before setting the lockout.
Step 2 Determine the standby XC/XCVT card. The ACT/STBY LED of the standby XC/XCVT card is amber, while the ACT/STBY LED of the active XC/XCVT card is green.
Note You can also place the cursor on the card graphic in CTC to display a dialog. This display identifies the card as XC/XCVT: Active or XC/XCVT: Standby.
Step 3 Physically replace the standby XC/XCVT card on the ONS 15454 with an XC10G card:
a. Open the XC/XCVT card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm, which will clear when the upgrade is complete.
c. Open the ejectors on the XC10G card.
d. Slide the XC10G card into the slot along the guide rails.
The fail LED above the ACT/STBY LED becomes red, blinks for several seconds, and turns off. The ACT/STBY LED turns amber and stays lit.
e. Close the ejectors.
Step 4 In node view, choose the Maintenance > XC Cards tabs.
Step 5 From the Cross Connect Cards menu, choose Switch.
Step 6 Click Yes on the Confirm Switch dialog box.
Note After the active XC/XCVT disengages, the standby slot or first XC10G card becomes active. This causes the ACT/STBY LED on the first XC10G card to change from amber to green.
Step 7 Physically remove the now standby XC/XCVT card from the ONS 15454 and insert the second XC10G card into the empty XC/XCVT slot:
a. Open the XC/XCVT card ejectors.
b. Slide the card out of the slot.
c. Open the ejectors on the XC10G.
d. Slide the XC10G card into the slot along the guide rails.
e. Close the ejectors.
The upgrade is complete when the second XC10G card boots up and becomes the standby XC10G.
Step 8 Release the protection lockout.
3.12 DS3/DS3N Card to DS3E/DS3EN Card Upgrade
You can perform in-service DS3E upgrades for the following ONS 15454 cards:
•DS3 to a DS3E
•DS3N to a DS3EN
Procedure: Upgrade the DS3 Card to the DS3E Card (or the DS3N Card to the DS3EN Card)
Upgrading to DS3E or DS3EN cards requires that the ONS 15454 is running CTC Release 3.1 or later. Upgrades must be performed between two N-type cards or two non-N-type cards. You cannot upgrade between an N-type card and a non-N-type card. When physically replacing the card, the new card must be in same slot as the old card. The DS3E card upgrade supports 1:1 and 1:N protection schemes. The procedure is non-service affecting, that is, the upgrade will cause a switch less than 50 ms in duration.
Note This procedure can also be used to bring forth the capabilities of a DS3E card that was installed in a chassis prior to having the Release 3.1 software load.
Note Protect cards must be upgraded before working cards because working cards cannot have more capabilities than their protect card.
Note During the upgrade some minor alarms and conditions will be raised and will clear on their own; however, there should be no Service-Affecting (SA, Major, or Critical) alarms. If any Service-Affecting alarms occur, Cisco recommends backing out of the procedure.
Step 1 If the card you are upgrading is unprotected, skip to Step 2. If the card you are upgrading is protected, first lockout the protect card:
Note Traffic will be lost during an upgrade on an unprotected card.
a. In node view, click the Maintenance > Protection tabs.
b. Under Protection Groups, click on the 1:1 or 1:N protection group (that is, the group supporting the 1:1 or 1:N span cards).
c. Under Selected Group, click on the protect card.
d. From Inhibit Switching, click Lock Out.
e. Click Yes on the confirmation dialog box.
Step 2 Physically remove the protect DS3 or the protect DS3N card:
a. Open the DS3/DS3N card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm, which will clear when the upgrade is complete.
Step 3 Right click on the protect slot and choose Change Card from the pull-down menu.
Step 4 Choose the new card (DS3E or DS3EN) from the Change to pull-down menu.
Step 5 Click OK.
Step 6 Insert the new DS3E or DS3EN card into the protect slot:
a. Open the ejectors on the DS3E/DS3EN card.
b. Slide the DS3E/DS3EN card into the slot along the guide rails.
Step 7 Close the ejectors.
Wait for the IMPROPRMVL alarm to clear and the card to become standby.
Step 8 Remove the lockout on the protect card:
a. In node view, click the Maintenance > Protection tabs.
b. Under Protection Groups, click on the 1:1 or 1:N protection group (that is, the group supporting the 1:1 or 1:N span cards).
c. Under Selected Group, click on the protect card.
d. From Inhibit Switching, click Unlock.
e. Click Yes on the confirmation dialog box.
Step 9 Repeat the steps above for the working card.
Note After upgrading from a DS3 to DS3E card, check the DS3E line type is set to the framing type employed by your particular SONET network to take full advantage of the performance monitoring capabilities of the DS3E. At the CTC card level, click the Provisioning>Line tabs and check the Line Type column.
Procedure: Downgrade a DS3 or DS3N Card
Downgrading can be performed to back out of an upgrade. All ports must be provisioned as UNFRAMED and not have the Path Trace enabled.
Note Working cards must be downgraded before protect cards.
The procedure for downgrading is the same as upgrading except you choose DS3 or DS3N from the Change Card pull-down menu. To begin the downgrade, right click on the slot to be downgraded and choose Change Card from the pull-down menu as instructed above in Step 4 of the upgrade. Follow the remaining steps of the upgrade until the downgrade is complete.
3.13 Span Upgrades
A span is the optical fiber connection between two ONS 15454 nodes. In a span upgrade, the transmission rate of a span is upgraded from a lower to a higher OC-N signal but all other span configuration attributes remain unchanged. With multiple nodes, a span upgrade is a coordinated series of upgrades on all nodes in the ring or protection group in which traffic carried at a lower OC-N rate is transferred to a higher OC-N. You can perform in-service span upgrades for the following ONS 15454 cards:
•OC-12 to OC-48
•OC-12 to OC-192
•OC-48 to OC-192
Use the XC10G card, the TCC+ card, Software R3.1 or later, and the new 15454-SA-ANSI shelf assembly to enable the OC48 IR/STM16 SH AS 1310, OC48 LR/STM16 LH AS 1550, and the OC192 LR/STM64 LH 1550 cards. See Chapter 4, "Card Reference," for more information on card compatibility.
To perform a span upgrade, the higher-rate optical card must replace the lower-rate card in the same slot. If the upgrade is conducted on spans residing in a BLSR, all spans in the ring must be upgraded. The protection configuration of the original lower-rate optical card (two-fiber BLSR, four-fiber BLSR, UPSR, and 1+1) is retained for the higher-rate optical card.
When performing span upgrades on a large number of nodes, Cisco recommends that you upgrade all spans in a ring consecutively and in the same maintenance window. Until all spans are upgraded, mismatched card types will be present.
Cisco recommends using the Span Upgrade Wizard to perform span upgrades. Although you can also use the manual span upgrade procedures, the manual procedures are mainly provided as error recovery for the wizard. The Span Upgrade Wizard and the Manual Span Upgrade procedures require at least two technicians (one at each end of the span) who can communicate with each other during the upgrade. Upgrading a span is non-service affecting and will cause no more than three switches, each of which is less than 50 ms in duration.
Note Do not perform any other maintenance operations or add any circuits during a span upgrade.
Note Span upgrades do not upgrade SONET topologies, for example, a 1+1 group to a two-fiber BLSR. See the Cisco ONS 15454 Installation and Operations Guide for topology upgrade procedures.
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
3.13.1 Span Upgrade Wizard
The Span Upgrade Wizard automates all steps in the manual span upgrade procedure (BLSR, UPSR, and 1+1). The wizard can upgrade both lines on one side of a four-fiber BLSR or both lines of a 1+1 group; the wizard upgrades UPSRs and two-fiber BLSRs one line at a time. The Span Upgrade Wizard requires that spans have DCC enabled.
The Span Upgrade Wizard provides no way to back out of an upgrade. In the case of an abnormal error, you must exit the wizard and initiate the manual procedure to either continue with the upgrade or back out of it. To continue with the manual procedure, examine the standing conditions and alarms to identify the stage in which the wizard failure occurred.
Note The Span Upgrade Wizard only supports OC-N span upgrades. It does not support DS-3 upgrades.
Note During the upgrade some minor alarms and conditions will be raised and will clear automatically. There should be no service-affecting (SA, Major, or Critical) alarms. If any service-affecting alarms occur, Cisco recommends backing out of the procedure.
BLSR Out of Sync alarms will be raised during span upgrades and will clear when the upgrade of all nodes is complete; a four-node BLSR can take up to five minutes to clear all of the Out of Sync alarms. Allow extra time for a large BLSR to clear all of the Out of Sync alarms.
Note If any of the cross connect cards reboot during the span upgrade, you must manually reset the card once the span upgrade procedure is completed on all the nodes in the ring.
Procedure: Perform a Span Upgrade Using the Span Upgrade Wizard
The following procedure shows the Span Upgrade Wizard upgrading the first line of a two-fiber BLSR from OC-48 to OC-192.
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF, SD, and FORCED-REQ-RING are present:
a. In network view, click on the Alarms tab to view a list of current alarms.
b. In network view, click on the Conditions tab and click the Retrieve Conditions button to view a list of current conditions.
An unresolved alarm or abnormal condition is the most probable reason for upgrade failure.
Step 2 In network view, right-click the span you want to upgrade.
Step 3 Choose Span Upgrade from the pull-down menu ( Figure 3-18).
Figure 3-18 Span pull-down menu
The first Span Upgrade Dialog box appears ( Figure 3-19). Follow the instructions on the dialog box and the wizard will lead you through the rest of the span upgrade. The <Back button is only enabled on Step 2 of the wizard; because you cannot back out of an upgrade via the wizard, exit the wizard and initiate the manual procedure if you need to back out of the upgrade at any point beyond Step 2.
Figure 3-19 Beginning the Span Upgrade Wizard
Note If you install OC-192 cards, an LOS alarm will be reported for each OC-192 slot because the OC-192 laser is disabled. Enable the OC-192 laser by setting the safety key lock to the ON position (1).
Note Before attaching the fiber to the newly installed OC-N cards, check that the receive signal falls within the acceptable range. The "Optical Card Transmit and Receive Levels" section on page 2-43 lists these specifications.
3.13.2 Manual Span Upgrades
Manual Span Upgrades are mainly provided as error recovery for the Span Upgrade Wizard, but they can be used to perform span upgrades. Downgrading can be performed to back out of a span upgrade. The procedure for downgrading is the same as upgrading except that you choose a lower-rate card type.You cannot downgrade if circuits exist on the STSs that will be removed (the higher STSs).
Choose from four manual span upgrade options:
• "Perform a Manual Span Upgrade on a Two-Fiber BLSR" procedure
• "Perform a Manual Span Upgrade on a Four-Fiber BLSR" procedure
• "Perform a Manual Span Upgrade on a UPSR" procedure
• "Perform a Manual Span Upgrade on a 1+1 Protection Group" procedure
Note During the upgrade some minor alarms and conditions will be raised and will clear automatically. There should be no service-affecting (SA, Major, or Critical) alarms. If any service-affecting alarms occur, Cisco recommends backing out of the procedure.
BLSR Out of Sync alarms will be raised during span upgrades and will clear when the upgrade of all nodes is complete. Allow extra time for a large BLSR to clear all of the Out of Sync alarms.
Note If any of the cross connect cards reboot during the span upgrade, you must manually reset the card once the span upgrade procedure is completed on all the nodes in the ring.
Procedure: Perform a Manual Span Upgrade on a Two-Fiber BLSR
All spans connecting the nodes in a BLSR must be upgraded before the added bandwidth is available.
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF, SD, and FORCED-REQ-RING are present on the BLSR that you will upgrade:
a. In network view, click the Alarms tab to view a list of current alarms.
b. In network view, click the Conditions tab and click the Retrieve Conditions button to view a list of current conditions.
An unresolved alarm or abnormal condition is the most probable reason for upgrade failure.
Step 2 Apply a force switch on the span that you will upgrade first:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose FORCE RING from the menu.
c. Click Apply.
Step 3 Remove the fiber from both span endpoints (nodes) and ensure that traffic is still running.
Step 4 Remove the OC-N cards from both endpoints.
Step 5 From both endpoints, in node view, right-click on each OC-N slot and choose Change Card.
Step 6 In the Change Card dialog box, choose the new OC-N type.
Step 7 Click OK.
Step 8 Install the new OC-N cards in both endpoints and attach the fiber to the cards.
Wait for the IMPROPRMVL alarm to clear and the cards to become active.
Note If you install OC-192 cards, an LOS alarm will be reported for each OC-192 slot because the OC-192 laser is disabled. Enable the OC-192 laser by setting the safety key lock to the ON position (1).
Note Before attaching the fiber to the newly installed OC-N cards, check that the receive signal falls within the acceptable range. The "Optical Card Transmit and Receive Levels" section on page 2-43 lists these specifications.
Step 9 When cards in both endpoint nodes have been successfully upgraded and all the facility alarms (LOS, SD or SF) are cleared, remove the forced switch:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose CLEAR from the menu.
c. Click Apply.
The forced switch clears and traffic is running. If you have lost traffic, perform a downgrade. The procedure for downgrading is the same as upgrading except that you choose a lower-rate card.
Note You cannot downgrade if circuits exist on the STSs that you will remove (the higher STSs).
Step 10 Repeat these steps for each span in the BLSR.
When all spans in the BLSR have been upgraded, the span upgrade is complete.
Procedure: Perform a Manual Span Upgrade on a Four-Fiber BLSR
When upgrading a four-fiber BLSR, you can upgrade both working and protect lines with a single force command. All spans in a BLSR must be upgraded before added bandwidth will be available.
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF, SD, and FORCED-REQ-RING are present on the BLSR that you will upgrade:
a. In network view, click on the Alarms tab to view a list of current alarms.
b. In network view, click on the Conditions tab and click the Retrieve Conditions button to view a list of current conditions.
An unresolved alarm or abnormal condition is the most probable reason for upgrade failure.
Step 2 Apply a force switch on the lines that you will upgrade:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose FORCE RING from the menu.
c. Click Apply.
Step 3 Remove the fiber from both working and protect cards at both span endpoints (nodes) and ensure that traffic is still running.
Step 4 Remove the OC-N cards from both end points.
Step 5 For both ends of the span endpoints, in node view, right-click on each OC-N slot and choose Change Card.
Step 6 In the Change Card dialog box, choose the new OC-N type.
Step 7 Click OK.
Step 8 When you have finished Steps 5 through 7 for both nodes, install the new OC-N cards in both endpoints and attach the fiber to the cards.
Wait for the IMPROPRMVL alarm to clear and the cards to become active.
Note If you install OC-192 cards, an LOS alarm will be reported for each OC-192 slot because the OC-192 laser is disabled. Enable the OC-192 laser by setting the safety key lock to the ON position (1).
Note Before attaching the fiber to the newly installed OC-N cards, check that the receive signal falls within the acceptable range. The "Optical Card Transmit and Receive Levels" section on page 2-43 lists these specifications.
Step 9 When cards on each side of the span have been successfully upgraded and all the facility alarms (LOS, SD, or SF) are cleared, remove the forced switch:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose CLEAR from the menu.
c. Click Apply.
The forced switch clears and traffic is running. If you have lost traffic, perform a downgrade. The procedure for downgrading is the same as upgrading except that you choose a lower-rate card.
Note You cannot downgrade if circuits exist on the STSs that you will remove (the higher STSs).
Step 10 Repeat these steps for each span in the BLSR.
When all spans in the BLSR have been upgraded, the span upgrade is complete.
Procedure: Perform a Manual Span Upgrade on a UPSR
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF, SD, and FORCED-REQ-RING are present on the span that you will upgrade:
a. In node view, click on the Alarms tab to view a list of current alarms.
b. In node view, click on the Conditions tab and click the Retrieve Conditions button to view a list of current conditions.
An unresolved alarm or abnormal condition is the most probable reason for upgrade failure.
Step 2 Apply a force switch on the span that you will upgrade:
a. In network view, right-click the span and choose Circuits.
b. From the Circuits on Span dialog box in the Switch All UPSR Circuits Away field, choose FORCE.
c. Click Apply.
Step 3 Remove the fiber from both endpoint nodes in the span and ensure that traffic is still running.
Step 4 Remove the OC-N cards from both span endpoints.
Step 5 For both ends of the span, in node view, right-click on each OC-N slot and choose Change Card.
Step 6 In the Change Card dialog box, choose the new OC-N type.
Step 7 Click OK.
Step 8 When you have finished Steps 5 through 7 for both nodes, install the new OC-N cards in both endpoints and attach the fiber to the cards.
Wait for the IMPROPRMVL alarm to clear and the cards to become active.
Note If you install OC-192 cards, an LOS alarm will be reported for each OC-192 slot because the OC-192 laser is disabled. Enable the OC-192 laser by setting the safety key lock to the ON position (1).
Note Before attaching the fiber to the newly installed OC-N cards, check that the receive signal falls within the acceptable range. The "Optical Card Transmit and Receive Levels" section on page 2-43 lists these specifications.
Step 9 When cards on each side of the span have been successfully upgraded and all the facility alarms (LOS, SD or SF) are cleared, remove the forced switch:
a. In network view, right-click the span and choose Circuits.
b. From the Circuits on Span dialog box in the Switch All UPSR Circuits Away field choose CLEAR.
c. Click Apply.
The forced switch clears and traffic is running. If you have lost traffic, perform a downgrade. The procedure for downgrading is the same as upgrading except that you choose a lower-rate card.
Note You cannot downgrade if circuits exist on the STSs that you will remove (the higher STSs).
Step 10 The span upgrade is complete.
Procedure: Perform a Manual Span Upgrade on a 1+1 Protection Group
When upgrading a 1+1 group, upgrade the protect line first regardless of which line is active. Both lines in a 1+1 group must be upgraded before the added bandwidth will be available.
Note If the switching mode is bidirectional in the 1+1 protection group, apply the Force command to only one end of the span, not both. The Clear command will apply to the end the Force was applied to. If the Force command is applied to both ends when the switching mode is bidirectional, it will cause a switch of more than 50 ms in duration.
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF, SD, and FORCED-REQ-RING are present on the span that you will upgrade:
a. In node view, click on the Alarms tab to view a list of current alarms.
b. In node view, click on the Conditions tab and click the Retrieve Conditions button to view a list of current conditions.
An unresolved alarm or abnormal condition is the most probable reason for upgrade failure.
Step 2 Apply a force switch on the ports that you will upgrade, beginning with the protect port:
a. In node view, click the Maintenance > Protection tabs.
b. Under Protection Groups, choose the 1+1 protection group.
c. Under Selected Group, choose the protect port (regardless if it is active or standby).
d. From Switch Commands, click Force.
e. Click Yes on the confirmation dialog box.
Step 3 Repeat Step 2 for each port.
Step 4 Remove the fiber from both ends of the span and ensure that traffic is still running.
Step 5 Remove the OC-N cards from both span endpoints.
Step 6 At both ends of the span, in node view, right-click the OC-N slot and choose Change Card.
Step 7 In the Change Card dialog box, choose the new OC-N type.
Step 8 Click OK.
Step 9 Install the new OC-N cards in both endpoints and attach the fiber to the cards.
Wait for the IMPROPRMVL alarm to clear and the cards to become standby.
Note If you install OC-192 cards, an LOS alarm will be reported for each OC-192 slot because the OC-192 laser is disabled. Enable the OC-192 laser by setting the safety key lock to the ON position (1).
Note Before attaching the fiber to the newly installed OC-N cards, check that the receive signal falls within the acceptable range. The "Optical Card Transmit and Receive Levels" section on page 2-43 lists these specifications.
Step 10 When cards on each end of the line have been successfully upgraded and all the facility alarms (LOS, SD or SF) are cleared, remove the forced switch:
a. In node view for either endpoint, click the Maintenance > Protection tabs.
b. Under Protection Groups, choose the 1+1 protection group.
c. Under Selected Group, choose the port with the force on it.
d. From Switch Commands, click Clear.
e. Click Yes on the confirmation dialog box.
The forced switch clears and traffic is running. If you have lost traffic, perform a downgrade. The procedure for downgrading is the same as upgrading except that you choose a lower-rate card.
Note You cannot downgrade if circuits exist on the STSs that you will remove (the higher STSs).
Step 11 Repeat these steps for the other line in the 1+1.
When the other line in the 1+1 has been upgraded, the span upgrade is complete.
3.14 Protection Group Switching
Protection group switching allows you to prohibit traffic from switching to a specified card using the Maintenance > Protection tabs. Protection group switching can be accomplished by applying a Lock On or a Lock Out to a specified card. When the Lock On state is applied to a specified working or protect card, any traffic which is currently on that card will remain on that card and will be unable to switch to the opposite card. When the Lock Out state is applied to a specified working or protect card, any traffic which is currently on that card will be switched to the opposite card. A combination of Lock On and Lock Out is allowed in 1:1 and 1:N protection; for example, a Lock On on the working card and a Lock Out on the protect card.
Note A non-alarmed event (INHSW) is raised when a card is placed in a Lock On or Lock Out state.
Procedure: Apply a Lock On
Note To apply a Lock On to a protect card in a 1:1 or 1:N protection group, the protect card must be active. If the protect card is not active, the Lock On button is disabled. To make the protect card active, you must switch traffic from the working card to the protect card. When the protect card is active, you can apply the Lock On.
To inhibit traffic from being switched from one card to another, apply a Lock On. Identify which protection group you have to determine which card can be placed in a Lock On state:
•For a 1:1 electrical protection group, both the working and protect cards can be placed in the Lock On state.
•For a 1:N electrical protection group, both the working and protect cards can be placed in the Lock On state.
•For a 1+1 optical protection group, only the working card can be placed in the Lock On state.
Step 1 In Node view, click the Maintenance > Protection tabs.
Step 2 Under Protection Groups, click on the protection group you want to switch.
Step 3 Under Selected Group, click on the card you want to lock traffic onto.
Step 4 From Inhibit Switching, click on Lock On.
Step 5 Click Yes on the confirmation dialog box.
The Lock On has been applied and traffic cannot be switched to the opposite card. To clear the Lock On, see the "Clear a Lock On or Lock Out" procedure.
Procedure: Apply a Lock Out
Note Multiple Lock Outs in the same protection group is not allowed.
To switch traffic from one card to another, apply a Lock Out. Identify which protection group you have to determine which card can be placed in a Lock Out state:
•For a 1:1 electrical protection group, both the working and protect cards can be placed in the Lock Out state.
•For a 1:N electrical protection group, both the working and protect cards can be placed in the Lock Out state.
•For a 1+1 optical protection group, only the protect card can be placed in the Lock Out state.
Step 1 In Node view, click the Maintenance > Protection tabs.
Step 2 Under Protection Groups, click on the protection group you want to switch.
Step 3 Under Selected Group, click on the card you want to lock traffic out of.
Step 4 From Inhibit Switching, click on Lock Out.
Step 5 Click Yes on the confirmation dialog box.
The lock out has been applied and traffic is switched to the opposite card. To clear the Lock Out, see the "Clear a Lock On or Lock Out" procedure.
Procedure: Clear a Lock On or Lock Out
Step 1 In Node view, click the Maintenance > Protection tabs.
Step 2 Under Selected Group, click on the card you want to clear.
Step 3 From Inhibit Switching, click on Unlock.
Step 4 Click Yes on the confirmation dialog box.
The Lock On or Lock Out is cleared.
3.15 Electrical Interface Assembly Replacement
Electrical interface assemblies (EIAs) provide cable connection points on the back of the ONS 15454 and come in several configurations that work with different cards and connections (see Table 3-1). For more information about EIAs, see the "Installation" chapter of the Cisco ONS 15454 Installation and Operations Guide.
EIAs have two sides. As you face the rear of the ONS 15454 shelf assembly, the right-hand side is the A side and the left-hand side is the B side. You can install EIAs on one or both sides of the ONS 15454 backplane in any combination. For example, you can use an AMP Champ EIA on side A and a BNC EIA on side B. The top of the EIA connector columns are labelled with the corresponding slot number, and EIA connector pairs are marked Tx and Rx to correspond to transmit and receive cables. EIAs come pre-installed on the ONS 15454 when ordered with the node.
3.15.1 EIA Types
Table 3-1 gives the product numbers and common names for EIAs.
Table 3-1 EIA Configurations
EIA Type
|
Cards Supported
|
A Side Hosts
|
A Side Columns Map to
|
A Side Product Number
|
B Side Hosts
|
B Side Columns Map to
|
B Side Product Number
|
BNC
|
DS-3 DS3XM-6 EC-1
|
24 pairs of BNC connectors
|
Slot 2
Slot 4
|
15454-EIA-BNC-A24
|
24 pairs of
BNC connectors
|
Slot 14
Slot 16
|
15454-EIA-BNC-B24
|
High- Density BNC
|
DS-3 DS3XM-6 EC-1
|
48 pairs of BNC connectors
|
Slot 1
Slot 2
Slot 4
Slot 5
|
15454-EIA-BNC-A48
|
48 pairs of
BNC connectors
|
Slot 13
Slot 14
Slot 16
Slot 17
|
15454-EIA-BNC-B48
|
SMB
|
DS-1
DS-3
EC-1
DS3XM-6
|
84 pairs of SMB connectors
|
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
|
15454-EIA-SMB-A84
|
84 pairs of SMB connectors
|
Slot 12
Slot 13
Slot 14
Slot 15
Slot 16
Slot 17
|
15454-EIA-SMB-B84
|
AMP Champ
|
DS-1
|
6 AMP Champ
connectors
|
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
|
15454-EIA-AMP-A84
|
6 AMP Champ
connectors
|
Slot 12
Slot 13
Slot 14
Slot 15
Slot 16
Slot 17
|
15454-EIA-AMP-B84
|
Note SMB EIAs support 14 ports per slot when used with a DS-1 card, 12 ports per slot when used with a DS-3 or EC-1 card, and 6 ports per slot when used with a DS3XM-6 card.
3.15.2 EIA Replacement Procedures
The replacement procedure is the same for all the EIA types. However, installing the AMP Champ EIA requires the additional step of attaching the fastening plate to the bottom of the connector row. Before you attach a new EIA, you must remove the backplane cover or EIA already attached to the ONS 15454.
Procedure: Remove the Backplane Cover or EIA
Step 1 To remove the lower backplane cover, loosen the five screws that secure it to the ONS 15454 and pull the backplane away from the shelf assembly.
Step 2 Loosen the nine perimeter screws that hold the backplane sheet metal cover in place. Do not remove the interior screws.
Note If you are removing an AMP Champ EIA, remove the fastening plate before proceeding. To remove the fastening plate, loosen the two thumbscrews.
Step 3 If a backplane cover is attached to the ONS 15454, lift the panel by the bottom to remove it from the shelf assembly and store the panel for later use.
Step 4 If an EIA is attached to the ONS 15454, lift the EIA handles and gently pull the EIA panel away from the backplane.
Note Attach backplane sheet metal covers whenever EIAs are not installed.
Procedure: Install the EIAs
Step 1 Line up the connectors on the EIA with the mating connectors on the backplane.
Step 2 Gently push the EIA until both sets of connectors fit together snugly.
Step 3 Replace the nine perimeter screws that you removed while removing the backplane cover.
Step 4 If you are installing an AMP Champ EIA, attach the fastening plate with the two thumbscrews.
Step 5 Reattach the lower backplane cover.
Due to the large number of BNC connectors on the High-Density BNC EIA, you might require a special tool for inserting and removing BNC EIAs ( Figure 3-20). This tool also helps with ONS 15454 patch panel connections.
Figure 3-20 BNC insertion and removal tool
This tool can be obtained with P/N 227-T1000 from:
Amphenol USA (www.amphenol.com)
One Kennedy Drive
Danbury, CT 06810
Phone: 203-743-9272 Fax: 203-796-2032
This tool can be obtained with P/N RT-1L from:
Trompeter Electronics Inc. (www.trompeter.com)
31186 La Baya Drive
Westlake Village, CA 91362-4047
Phone: (800) 982-2629 Fax: (818) 706-1040
3.16 Fiber Cleaning
No special instructions apply to cleaning fibers connected to ONS 15454s. Clean the fiber according to local site practice. If no local practice exists, use a CLETOP Real-Type or equivalent fiber-optic cleaner and follow the instructions accompanying the product. An optical fiber maintenance kit can be ordered from Speer Fiber Optics (www.speerfiberoptics.com), part number SFO-1400 NN-A.
3.17 Powering Down a Node
Note Always use the supplied ESD wristband when working with the Cisco ONS 15454. Plug the wristband into the ESD jack located on the fan-tray assembly or on the lower right outside edge of the shelf on the NEBS 3 shelf assembly. To access the ESD plug on the NEBS 3 shelf assembly, open the front door of the Cisco ONS 15454. The front door is grounded to prevent electrical shock.
Caution The following procedure is designed to minimize traffic outages when powering down nodes, but traffic will be lost if you delete and recreate circuits that passed through a working node.
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
Procedure: Power Down a Node
Step 1 Identify the node that you want to power down. If no cards are installed, go to Step 12. If cards are installed, log into the node.
Step 2 From the network view, verify that the node is not connected to a working network.
a. If the node is part of a working network, log out of the node and follow the procedures to remove a BLSR node or UPSR node in the Cisco ONS 15454 Installation and Operations Guide, Release 3.2. Then continue with Step 3.
b. If the node is not connected to a working network and the current configurations are no longer required, go to Step 3.
Note Current configurations will be saved if Steps 3- 8 are skipped.
Step 3 From the node view, choose the Circuits tab and verify that no circuits are displayed. If circuits are displayed, delete all the circuits that originate or terminate in the node, as follows:
a. Click the circuits that need to be deleted and click Delete.
b. Click Yes.
If no circuits are displayed, skip to Step 4.
Step 4 From the node view, choose the Provisioning > Protection tabs and delete all protection groups.
Step 5 From node view, choose the Provisioning > SONET DCC tabs and delete all SDCC terminations.
Step 6 For each installed card, from card view, click the Provisioning > Line tabs and place all ports in "Out of Service" mode.
Step 7 Remove all fiber connections to the cards.
Step 8 Right-click on the installed card and click Delete.
Step 9 Click Yes.
Step 10 After you have deleted the card, open the card ejectors and remove it from the node. Repeat Steps 6- 10 for each installed card.
Step 11 Shut off the power from the power supply that feeds the node.
Step 12 Disconnect the node from its external fuse source.
Step 13 Store all cards removed and update inventory records according to local site practice.
