Procedure 12-13: Suspend OC-48 BLSR to OC-192 BLSR upgrade
Overview
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NOTICE Service-disruption hazard |
If a node has been taken out of the Ring Upgrade Mode, the node cannot be returned to the original pre-upgrade state without affecting service.
All nodes in the ring must be in the provisioned Ring Upgrade Mode.
Use this procedure to temporarily suspend a OC-48 BLSR to OC-192 BLSR upgrade.
Suspending an upgrade in progress temporarily stops the upgrade.
To return all nodes in the ring to their pre-upgrade state, refer to Procedure 12-12: Back out OC-48 BLSR to OC-192 BLSR upgrade.
When the ring upgrade is temporarily suspended before completion, some spans are operating at the OC-48 line rate and some at the OC-192 line rate. This requires two nodes that are equipped with an OC-48 OLIU circuit pack in one Main slot and an OC-192 OLIU circuit pack in the other Main slot. These nodes are the starting node and the last node upgraded.
To continue to operate temporarily with different circuit packs in the Main slots, the starting node and the nodes that have been upgraded must remain in the Ring Upgrade Mode.
Important!
Transmission hits will occur during this procedure whenever an OLIU circuit pack with a different line rate is installed or removed from a Main slot. The transmission hit is a result of an internal system timing adjustment to accommodate different line rates in the two Main slots.
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:
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One original OC-48 OLIU circuit pack if the upgrade is suspended at an upgraded node originally equipped with LNW27 (Series 1:6 and later), LNW29 (Series 1:6 and later), LNW32, LNW76 (Series 1:6 and later), LNW82, LNW202, and/or LNW221–259 (Series 1:6 and later) OC-48 OLIU circuit packs
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One LNW27 (Series 1:6 and later) or LNWUPG OC-48 OLIU circuit pack (temporarily required if the upgrade is suspended at a partially upgraded node originally equipped with LNW26B, LNW27 (pre Series 1:6), LNW28, LNW29 (pre Series 1:6), LNW76 (pre Series 1:6), LNW77, LNW121B–159B, and/or LNW221–259 (pre Series 1:6) OC-48 OLIU circuit packs)
The LNWUPG OC-48 OLIU circuit pack is a special LNW27 OC-48 OLIU circuit pack that is intended for use only as the temporary transition circuit pack. There are no differences between the LNW27 (Series 1:6 and later) and LNWUPG circuit packs with respect to in-service backouts/suspends.
The LNW29 (Series 1:6 and later), LNW32, LNW76 (Series 1:6 and later), LNW202, and/or LNW221–259 (Series 1:6 and later) OC-48 OLIU circuit packs may also be used as the temporary replacement circuit packs. However, the temporary replacement circuit packs must have compatible optics. For example, do not replace a circuit pack that has long range optics with a circuit pack that has intermediate reach optics. Refer to the Alcatel-Lucent 1665 Data Multiplexer (DMX) Applications and Planning Guide, 365-372-300 for the SONET optical specifications of the OC-48 OLIU circuit packs.
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NOTICE Equipment damage hazard |
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.
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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.
Before you begin
Prior to performing this procedure:
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Refer to Laser safety and Electrostatic discharge information in Chapter 1, Safety.
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Review the applicable Alcatel-Lucent 1665 Data Multiplexer (DMX) Software Release Description for any detailed procedures or cautions that may apply to this suspend procedure.
Steps
Important!
This procedure starts at the last node upgraded.
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.
When optical fibers are connected during this procedure, Default K-bytes alarms are reported temporarily.
Complete the following steps to temporarily suspend an OC-48 BLSR to OC-192 BLSR upgrade.
1 |
Identify the last node that was upgraded.
Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
2 |
Important! Both Main slots have been upgraded and the system is reporting an inc. OC192 LOS alarm and a Line Automatic Switch condition for Main slot M2. 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 active/standby status, perform manual switches if the circuit pack is active, and then disconnect the optical fibers and remove the circuit pack. Determine the local operating procedures for removing a circuit pack before removing the OC-192 OLIU circuit pack in Main slot M2.
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3 |
Important! This step is optional. If the OC-192 OLIU circuit pack in Main slot M2 is the active circuit pack for timing and the circuit pack is removed, the system performs an automatic protection switch and subsequent transmission hits (less than 60 ms) will occur. If desired, perform this step to determine the timing state of the OC-192 OLIU circuit pack in Main slot M2. Select View → Timing/Sync. Observe the value of the Active Circuit Pack parameter to determine the active circuit pack for timing. Click Close. | ||||||||
4 |
Important! This step is optional. If the OC-192 OLIU circuit pack in Main slot M2 is the active circuit pack for timing, an optional manual timing switch can be performed before replacing the circuit pack in Main slot M2. Transmission hits (less than 60 ms) will occur for each separate protection switch. If the OC-192 OLIU circuit pack in Main slot M1 is the active circuit pack for timing, do not perform this step. To perform an optional manual timing switch, select Fault → Timing/Sync Protection Switch → Main Circuit Pack Timing Switch. Select the Manual Switch Command and click OK. Result: A dialog box appears asking you to confirm executing this command. Click Yes. | ||||||||
5 |
If required, repeat Step 3 to verify that the circuit pack in Main slot M1 is now the active circuit pack for timing. | ||||||||
6 |
Open the lower faceplate latch on the OC-192 OLIU circuit pack in Main slot M2. If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Disconnect the optical fibers from the OC-192 OLIU circuit pack in Main slot M2.
Result: The OC-48 OLIU circuit pack in Main slot M2 is tested and autoprovisioned. The system still reports an inc. OC192 LOS alarm and Line Automatic Switch condition for Main slot M2. The system also reports an unexpected circuit pack type condition for Main slot M2. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots | ||||||||
7 |
At both ends of the optical span, perform the following to connect the OC-48 OLIU circuit pack in Main slot M2 and the required OC-48 circuit pack/port at the opposite end of the OC-48 optical span:
Result: The inc. OC192 LOS alarm and Line Automatic Switch condition for Main slot M2 clear, and the system still reports an unexpected circuit pack type condition for Main slot M2. Reference: Procedure 14-4: Perform connection and verification of optical facility STOP! End of Procedure. The upgrade procedure is now temporarily suspended and traffic is supported to the adjacent nodes. To resume the upgrade, replace the OC-48 OLIU circuit pack in Main slot M2 with the OC-192 OLIU circuit pack. Refer to Procedure 12-11: Upgrade OC-48 BLSR to OC-192 BLSR. To back out the upgrade, refer to Procedure 12-12: Back out OC-48 BLSR to OC-192 BLSR upgrade. | ||||||||
8 |
Important! Main slot M1 has been upgraded and the node was originally equipped with LNW26B, LNW27 (pre Series 1:6), LNW28, LNW29 (pre Series 1:6), LNW76 (pre Series 1:6), LNW77, LNW121B–159B, or LNW221–259 (pre Series 1:6) OC-48 OLIU circuit packs. If an unexpected CP type alarm is reported for Main slot M1, select Configuration → Update System → Upgrade, then select main-1 (default) as the Directed Slot Choice and click OK. Otherwise, proceed to the next step. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The OC-192 OLIU circuit pack in Main slot M1 is tested and autoprovisioned. The system performs an automatic line protection switch, and all traffic is now active on Main slot M1. Transmission hits (less than 60 ms) occur as traffic switches from the circuit pack in Main slot M2 to the circuit pack in Main slot M1. The unexpected CP type alarm and Line Automatic Switch condition for Main slot M1 clear, and the system reports an unexpected CP type alarm and Line Automatic Switch condition for Main slot M2. | ||||||||
9 |
Open the lower faceplate latch on the OC-48 OLIU circuit pack in Main slot M2. If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Disconnect the optical fibers from the OC-48 OLIU circuit pack in Main slot M2. Then replace the OC-48 OLIU circuit pack in Main slot M2 with the temporary replacement OC-48 OLIU circuit pack. Result: The temporary replacement OC-48 OLIU circuit pack in Main slot M2 is tested and autoprovisioned. The unexpected CP type alarm for Main slot M2 clears. The system reports an unexpected circuit pack type condition and an inc. OC192 LOS alarm for Main slot M2. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots | ||||||||
10 |
At both ends of the optical span, perform the following to connect the temporary replacement OC-48 OLIU circuit pack in Main slot M2 and the required OC-48 circuit pack/port at the opposite end of the OC-48 optical span:
Result: The inc. OC192 LOS alarm for Main slot M2 clears, and the system still reports an unexpected circuit pack type condition for Main slot M2. Reference: Procedure 14-4: Perform connection and verification of optical facility STOP! End of Procedure. The upgrade procedure is now temporarily suspended and traffic is supported to the adjacent nodes. To resume the upgrade, replace the temporary replacement OC-48 OLIU circuit pack in Main slot M2 with the OC-192 OLIU circuit pack. Refer to Procedure 12-11: Upgrade OC-48 BLSR to OC-192 BLSR. To back out the upgrade, refer to Procedure 12-12: Back out OC-48 BLSR to OC-192 BLSR upgrade. | ||||||||
11 |
Important! Main slot M1 has been upgraded and the node was originally equipped with LNW27 (Series 1:6 and later), LNW29 (Series 1:6 and later), LNW32, LNW76 (Series 1:6 and later), LNW82, LNW202, or LNW221–259 (Series 1:6 and later) OC-48 OLIU circuit packs. If an unexpected circuit pack type condition is reported for Main slot M1, select Configuration → Update System → Upgrade, then select main-1 (default) as the Directed Slot Choice and click OK. Otherwise, the node is already in the proper suspend configuration and no further action is required. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The unexpected circuit pack type condition for Main slot M1 clears, and the system reports an unexpected circuit pack type condition for Main slot M2. STOP! End of Procedure. The upgrade procedure is now temporarily suspended and traffic is supported to the adjacent nodes. To resume the upgrade, replace the OC-48 OLIU circuit pack in Main slot M2 with the OC-192 OLIU circuit pack. Refer to Procedure 12-11: Upgrade OC-48 BLSR to OC-192 BLSR. To back out the upgrade, refer to Procedure 12-12: Back out OC-48 BLSR to OC-192 BLSR upgrade. End of steps |
BLSR example
