Procedure 12-11: Upgrade low-speed OLIU circuit packs (same slots)
Overview
Use this procedure to perform the following in-service, same-slot, low-speed OLIU circuit pack upgrades:
-
low-density 4-port LNW36/LNW37 OC-3 OLIU to high-density 8-port LNW45 OC-3 OLIU
-
LNW36/LNW37/LNW45 OC-3 OLIU to 12-port LNW55 OC3/OC12/OC48 OLIU
-
low-density 2-port LNW46 OC-12 OLIU to high-density 4-port LNW49 OC-12 OLIU
Important!
If upgrading to LNW55 OLIU circuit packs, the Main slots must be equipped with Very Large Fabric LNW84 or LNW141 OLIU circuit packs. If the Main slots are not equipped with Very Large Fabric OLIU circuit packs, the system reports a CP not allowed - eqpt alarm.
Important!
To perform an in-service, different-slot, low-speed OLIU circuit pack upgrade, refer to Procedure 12-10: Upgrade low-speed OLIU circuit packs (different slots).
Upgrades to multiport circuit packs
When upgrading to a circuit pack with more ports, the cross-connections on the original port are mapped to the same port number on the upgrade circuit pack. The upgrade circuit pack must also be configured with compatible pluggable transmission modules that match the port signal rates on the original circuit pack.
The additional ports on the upgrade circuit pack cannot be used until after the upgrade is completed. After the upgrade is completed, the remaining ports may be configured for any of the available port signal rates allowed for the circuit pack.
Privilege level
You must log in as a Privileged user to complete this procedure.
Required equipment
The following equipment is required to perform this procedure:
The pluggable transmission modules installed in the original OLIU circuit packs may be reused in the replacement OLIU circuit packs.
|
NOTICE Equipment damage |
Rocking circuit packs back and forth when removing or installing them can damage circuit pack and/or shelf connectors.
Do not rock circuit packs back and forth when removing or installing them. Carefully slide circuit packs into or out of the shelf slot.
 |
NOTICE Service-disruption hazard |
Since low-speed OLIU circuit packs may have unprotected 0x1 ports, any unprotected 0x1 ports will experience a service outage during this procedure.
This in-service upgrade is intended to be used with only ports carrying service protected traffic.
| |
NOTICE Service-disruption hazard |
Removing or installing circuit packs during a System Reset can cause system errors.
Do not remove or install a circuit pack during a System Reset. If a System Reset occurs, wait until the System Reset is complete, then remove or install the circuit pack.
| |
NOTICE Service-disruption hazard |
If upgrading from LNW36 OC-3 to LNW45 OC-3 OLIU circuit packs or from LNW46 OC-12 to LNW49 OC-12 OLIU circuit packs, transmission hits (up to 300 ms) may occur as traffic is switched.
If the OLIU circuit packs being upgraded carry Ethernet traffic, transmission hits (up to 6 seconds) may occur as Ethernet traffic is switched.
The length of the service hits varies based on shelf equipage and TDM/Ethernet service provisioning.
Before you begin
Prior to performing this procedure:
-
Refer to Electrostatic discharge information in Chapter 1, Safety.
-
Obtain the work instructions for this procedure, and verify that the affected circuit pack/protection group AIDs are specified.
-
Verify that the circuit packs to be upgraded are protected. Both slots/ports in the Function/Growth group must be equipped before performing this procedure. If necessary, install the companion circuit pack/pluggable transmission module. Refer to Procedure 4-3: Install OLIU circuit packs in Function slots and/or Procedure 4-16: Install pluggable transmission modules.
-
Review the applicable Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Software Release Description for any detailed procedures or cautions that may apply to this upgrade procedure.
-
Determine the local operating procedures for removing a circuit pack. Local operating procedures for removing a circuit pack may vary. One method is to disconnect the optical fibers and remove the circuit pack. Another method is to verify the circuit pack/port active/standby status, perform manual switches if the ports are active, and then disconnect the optical fibers and remove the circuit pack.
Steps
Important!
When optical fibers are disconnected during this procedure, inc. LOS, section DCC channel failed, and neighbor SYSCTL CP unavailable alarms are reported. The holdover mode active condition may also be reported depending on the provisioned system timing mode.
Complete the following steps to upgrade low-speed OLIU circuit packs using the same slots.
1 |
Log in to the node where the low-speed OLIU circuit packs are to be replaced. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||
2 |
Using the WaveStar® CIT verify the status of the node to be upgraded. Reference: Procedure 12-11.1: Verify status of node to be upgraded | ||||
3 |
If required, verify the active/standby status of the OLIU circuit pack/ports in slot 1 of the Function/Growth group and perform manual switches to switch traffic away from the active circuit pack/ports. Reference: Procedure 12-11.2: Verify active/standby status of circuit pack/ports to be replaced | ||||
4 |
If the OLIU circuit pack in slot 1 of the Function/Growth group has unprotected 0x1 ports, a service outage will occur from the time that the OLIU circuit pack is removed until the replacement OLIU circuit pack is installed with fibers reconnected and a system update is successfully executed. This in-service upgrade is intended to be used with only ports carrying service protected traffic. Important! The OLIU circuit pack in slot 1 of the Function/Growth group must be replaced first. Disconnect the optical fibers from the OLIU circuit pack in slot 1 of the Function/Growth group. If the ports are active for transmission, disconnecting the optical fibers causes transmission switches. Open the lower faceplate latch on the OLIU circuit pack in slot 1 of the Function/Growth group. Then replace the l OLIU circuit pack in slot 1 of the Function/Growth group with the replacement OLIU circuit pack. Result: Transmission hits (less than 60 ms) may occur if traffic exists on the OLIU circuit pack in slot 1 of the Function/Growth group. If through traffic exists (USPRs only), transmission hits (less than 60 ms) may occur at the nodes where the traffic is added/dropped. If a circuit pack firmware update is required, the system reports the Waiting for Download and Install Program IP conditions when the replacement OLIU circuit pack is installed. After the circuit pack firmware update is complete, the system reports an unexpected CP type alarm for slot 1 of the Function/Growth group. If a circuit pack firmware update is not required, the system reports an unexpected CP type alarm for slot 1 of the Function/Growth group when the replacement OLIU circuit pack is installed. If upgrading to LNW55 OLIU circuit packs, the system reports a CP removed or CP failure alarm for approximately 4 minutes before reporting the unexpected CP type alarm. Alarms may also be reported at other nodes in the network. Reference: Procedure 4-3: Install OLIU circuit packs in Function slots | ||||
5 |
If required, measure the optical receive power of the receive fibers using an optical power meter. Select the appropriate LBO to attenuate the receive signal to the middle of the allowable optical receive power range. (Refer to the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Applications and Planning Guide, 365-372-324 for the SONET optical specifications of the OLIU circuit packs/pluggable transmission modules.) | ||||
6 |
Clean all fiber connectors. Connect the pluggable transmission modules, LBOs, and transmit/receive optical fibers to the replacement OLIU circuit pack in slot 1 of the Function/Growth group. Reference: | ||||
7 |
If the OLIU circuit pack in slot 2 of the Function/Growth group has unprotected 0x1 ports, a service outage will occur from the time that a system update is successfully executed until the replacement OLIU circuit pack is installed and fibers are reconnected. This in-service upgrade is intended to be used with only ports carrying service protected traffic.
If upgrading from LNW36 OC-3 to LNW45 OC-3 OLIU circuit packs or from LNW46 OC-12 to LNW49 OC-12 OLIU circuit packs, transmission hits (up to 300 ms) may occur as traffic is switched. If the OLIU circuit packs being upgraded carry Ethernet traffic, transmission hits (up to 6 seconds) may occur as Ethernet traffic is switched. The length of the service hits varies based on shelf equipage and TDM/Ethernet service provisioning. Important! The UPD/INIT button does not work during this upgrade. At the System View select Configuration → Update System → Update All. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The replacement OLIU circuit pack/pluggable transmission modules in slot 1 of the Function/Growth group is tested and autoprovisioned. The system performs automatic protection switches. Transmission hits (less than 60 ms) occur as traffic is automatically switched from the OLIU circuit pack in slot 2 to the replacement OLIU circuit pack/pluggable transmission modules in slot 1 of the Function/Growth group. All traffic is now active on the replacement OLIU circuit pack/pluggable transmission modules in slot 1 of the Function/Growth group. The unexpected CP type alarm for slot 1 clears, and the system reports an CP not allowed - eqpt alarm for slot 2. Alarms may also be reported at other nodes in the network. | ||||
8 |
Disconnect the optical fibers from the OLIU circuit pack in slot 2 of the Function/Growth group. Open the lower faceplate latch on the OLIU circuit pack in slot 2 of the Function/Growth group. Then replace the OLIU circuit pack in slot 2 with the replacement OLIU circuit pack. Result: The replacement OLIU circuit pack in slot 2 is tested and autoprovisioned. If a circuit pack firmware update is required, the system reports the Waiting for Download and Install Program IP conditions when the replacement OLIU circuit pack is installed. After the circuit pack firmware update is complete, the CP not allowed - eqpt alarm for slot 2 clears, and the system reports an inc. LOS alarm for slot 2. If a circuit pack firmware update is not required, the CP not allowed - eqpt alarm for slot 2 clears, and the system reports an inc. LOS alarm for slot 2. Reference: Procedure 4-3: Install OLIU circuit packs in Function slots | ||||
9 |
If required, measure the optical receive power of the receive fibers using an optical power meter. Select the appropriate LBO to attenuate the receive signal to the middle of the allowable optical receive power range. (Refer to the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Applications and Planning Guide, 365-372-324 for the SONET optical specifications of the OLIU circuit packs/pluggable transmission modules.) | ||||
10 |
Clean all fiber connectors. Connect the pluggable transmission modules, LBOs, and transmit/receive optical fibers to the replacement OLIU circuit pack in slot 2 of the Function/Growth group. Result: All alarms clear and service is restored. Reference: | ||||
11 |
Important! If the Main slots are equipped with VLF OLIU circuit packs, the replacement OLIU circuit packs do not support backplane optimization. If required, select Configuration → Optimize Backplane Bandwidth to access the replacement OLIU circuit packs and optimize the backplane bandwidth between the replacement OLIU circuit packs and the non-VLF OLIU circuit packs in the Main slots. Reference: Procedure 6-12: Optimize backplane bandwidth | ||||
12 |
Important! It is recommended that the network element database be backed up to a remote OS (for example, OMS) after an upgrade. This creates a current backup copy that includes the replacement circuit packs. The remote OS could use this backup copy to restore the network element database in the event of a catastrophic failure. Attempts to restore the network element database using a backup copy created prior to the upgrade may result in circuit pack failures. Back up the network element database using the Configuration → Software → Remote Backup command. Reference: | ||||
13 |
This completes the circuit pack upgrade at the local node. If required, repeat this procedure to upgrade another node. End of steps |