Procedure 12-11: Upgrade OC-48 BLSR to OC-192 BLSR
Overview
Important!
The BLSR must be equipped with Alcatel-Lucent 1665 DMX nodes only. This upgrade procedure does not support upgrading BLSRs equipped with nodes other than Alcatel-Lucent 1665 DMX.
Use this procedure to upgrade an in-service OC-48 BLSR to a OC-192 BLSR. The supported upgrades include non-VLF to non-VLF upgrades and VLF to VLF upgrades.
Important!
Systems equipped with VLF mains (LNW82, LNW59, LNW504) support extra traffic on all OC-192 BLSRs (Main and Function). Systems equipped with non-VLF OC-48 mains support extra traffic on the main OC-48 BLSRs only. Regardless of equipage combinations, extra traffic is not supported on any other BLSR.
Note:
To upgrade an in-service non-VLF OC-48 BLSR to a VLF OC-192 BLSR, refer to Procedure 12-22: Upgrade non-VLF OC-48 BLSR to VLF OC-192 BLSR.
The OC-48 OLIU circuit packs in the Main slots are upgraded at each node. Low-speed OC-48 BLSR upgrades are not supported in this release.
This procedure assumes that in the BLSR, the circuit pack in Main slot M1 is always connected to the circuit pack in Main slot M2 of the adjacent node. (Refer to the BLSR example at the end of the procedure.)
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.
Ring Upgrade Mode
During the upgrade, each node in the ring must be provisioned in the Ring Upgrade Mode. The Ring Upgrade Mode allows cross-connections and provisioning data to be mapped to the replacement circuit pack and prohibits the following operations:
While the node is in the Ring Upgrade Mode, the BLSR protection group Wait to Restore timer is automatically provisioned 0. The Wait to Restore timer returns to the original provisioned value when the node leaves the Ring Upgrade Mode.
The node remains in the Ring Upgrade Mode until it is manually provisioned back to the Normal mode. While in the Ring Upgrade Mode, the upgrade may be temporarily suspended or backed out. To prevent errors in the upgraded ring, keep all nodes in Ring Upgrade Mode until all nodes have been upgraded.
The Ring Upgrade Mode is an abnormal condition. Therefore, the ABN LED is lighted on the SYSCTL circuit pack faceplate and the WaveStar® CIT Alarm List shows the Ring Upgrade Mode as Not Alarmed.
Compatible and incompatible OC-48 OLIU circuit packs
The original OC-48 OLIU and replacement OC-192 OLIU circuit packs have compatible or incompatible VT cross-connection fabrics.
Compatible OC-48 OLIU circuit packs
Compatible OC-48 OLIU circuit packs and the replacement OC-192 OLIU circuit packs have the compatible VT cross-connection fabrics. During the upgrade when one Main slot is equipped with a compatible OC-48 OLIU circuit pack and the companion Main slot is equipped with a replacement OC-192 OLIU circuit pack, all add/drop and through traffic is supported. The system reports an unexpected circuit pack type condition, and the affected circuit pack is not failed.
The following OC-48 OLIU circuit packs are compatible with the replacement OC-192 OLIU circuit packs:
These OC-48 OLIU circuit packs have different optics and transmit wavelengths. However, these circuit packs are functionally and electrically the same. There are no differences between these circuit packs for the purposes of ring upgrades.
Refer to Required equipment for a complete list of supported replacement OC-192 OLIU circuit packs.
Incompatible OC-48 OLIU circuit packs
Incompatible OC-48 OLIU circuit packs and the replacement OC-192 OLIU circuit packs have different VT cross-connection fabrics. During the upgrade when one Main slot is equipped with an incompatible OC-48 OLIU circuit pack and the companion Main slot is equipped with a replacement OC-192 OLIU circuit pack, VT pass-through transmission is not supported. The system reports an unexpected CP type alarm, and the affected circuit pack is failed.
The FAULT LED may light on the circuit packs in the Main slots, and the opposite end of the optical spans may report inc. OCN sig. degrade (BER), section DCC channel failed, and Default K-bytes alarms.
The following OC-48 OLIU circuit packs are incompatible with the replacement OC-192 OLIU circuit packs:
These OC-48 OLIU circuit packs have different optics and transmit wavelengths. However, these circuit packs are functionally and electrically the same. There are no differences between these circuit packs for the purposes of ring upgrades.
Refer to Required equipment for a complete list of supported replacement OC-192 OLIU circuit packs.
Reported alarm severity levels
The alarm severity levels are reported using the Alarm List and the SYSCTL circuit pack faceplate LED indicators (CR, MJ, MN, or ABN).
Alarm List
The Alarm List is obtained by clicking the Alarm List button. The Alarm List reports detailed information about the current alarms on the local network element. This includes the assigned ASAP alarm severity levels.
For more information about provisioning and assigning ASAPs, refer to Chapter 6, System configuration procedures.
SYSCTL circuit pack faceplate LEDs
The SYSCTL circuit pack faceplate LEDs report the highest active alarm severity level at the local network element or within the alarm group based on the provisioned value of the Remote NE Status parameter.
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If the Remote NE Status parameter is... |
Then... |
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Enabled, |
the SYSCTL circuit pack faceplate LEDs at the local network element display the highest active alarm severity level (if any) within the Alarm Group and the FE LED is lighted. |
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Disabled, |
the SYSCTL circuit pack faceplate LEDs at the local network element display the highest active alarm severity level (if any) at the local network element only. |
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Enable Far End, |
the SYSCTL circuit pack faceplate FE LED is lighted to indicate an alarm within the alarm group. However, the SYSCTL circuit pack faceplate LEDs at the local network element display the highest active alarm severity level (if any) at the local network element only. |
For more information about provisioning the Remote NE Status feature, refer to Procedure 7-9: Set NE defaults — alarm gateway, alarm group, remote NE status, FTP/FTTD, security and history log thresholds.
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 following lightguide buildouts (LBOs) should be available:
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As optical spans are upgraded around the BLSR, ensure that technicians are available at each end of an optical span as it is upgraded.
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If Main slot M1 at the first node to be upgraded is equipped with an LNW27 (pre Series 1:6), LNW29 (pre Series 1:6), LNW76 (pre Series 1:6), and/or LNW221–259 (pre Series 1:6) OC-48 OLIU circuit pack, one Series 1:6 or later version of the same OC-48 OLIU circuit pack type is temporarily required. For example if the first node to be upgraded is equipped with pre Series 1:6 LNW27 OC-48 OLIU circuit packs, then 1 Series 1:6 or later LNW27 OC-48 OLIU circuit pack is temporarily required.
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If Main slot M1 at the first node to be upgraded is equipped with an LNW26B, LNW28, LNW77, and/or LNW121B–159B OC-48 OLIU circuit pack, one LNW27 (Series 1:6 and later) or LNWUPG OC-48 OLIU circuit pack is temporarily required.
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 during ring upgrades. There are no differences between the LNW27 (Series 1:6 and later) and LNWUPG circuit packs with respect to in-service upgrades.
An 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 pack may also be used as the temporary replacement circuit pack. However, the temporary replacement circuit pack must have compatible optics. For example, do not replace a circuit pack that has long reach 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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2 replacement LNW56, LNW57, LNW58, LNW60, LNW502, LNW523, LNW527, LNW554, or LNW555 OC-192 OLIU circuit packs (Series 1:1 and later) for each node.
To upgrade an in-service BLSR using the Very Large Fabric (VLF) LNW59 OC-192 OLIU circuit packs, refer to Procedure 12-22: Upgrade non-VLF OC-48 BLSR to VLF OC-192 BLSR.
The replacement circuit packs must have compatible optics. For example, do not replace a circuit pack that has long reach 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-192 OLIU circuit packs.
Important!
Release 3.0 or later software is required to support the OC-192 OLIU circuit packs.
Release 3.0 or later software is required to support LNW555 OC-192 OLIU circuit packs.
Release 4.0 or later software is required to support LNW57, LNW523, LNW527, and LNW554 OC-192 OLIU circuit packs.
Release 5.1 or later software is required to support LNW60 OC-192 OLIU circuit packs.
Important!
All nodes in the existing network must have the same software release before upgrading the network.
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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.
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NOTICE Service-disruption hazard |
If the OLIU circuit packs being upgraded carry Ethernet traffic with LCAS enabled, 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:
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Refer to Laser safety and Electrostatic discharge information in Chapter 1, Safety.
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Review the applicable office records for each fiber span in the BLSR and the Alcatel-Lucent 1665 Data Multiplexer (DMX) Applications and Planning Guide, 365-372-300 for detailed SONET optical specifications of the OC-192 OLIU circuit packs. Ensure that the OC-192 OLIU circuit packs are compatible with each fiber span in the BLSR. Attenuation and Dispersion may be limiting factors at longer span lengths.
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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 upgrade procedure.
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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 active/standby status, perform manual switches if the circuit pack is 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.
When optical fibers are connected during this procedure, Default K-bytes alarms are reported temporarily.
Complete the following steps to upgrade an in-service OC-48 BLSR to an OC-192 BLSR.
1 |
From office records and work instructions, determine the current network configuration. | ||||||
2 |
Log in to a node in the BLSR to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
3 |
Select View → Rings → Ring Map. Click on required Ring ID and Select. Click View Graphic and observe the ring map diagram. Note how the nodes are connected in the ring and make a drawing of the ring map diagram to reference during this upgrade procedure. | ||||||
4 |
Click the Alarm List button in the top right corner of the System View to view the NE Alarm List and verify that no alarms are present. Refer to the appropriate trouble clearing procedures to clear all existing alarms before continuing with this procedure. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | ||||||
5 |
To verify that no loopbacks, protection switch lockouts, or protection switches are present, select View → Rolling Events. Under the line reading RTRV-COND-ALL determine if any loopbacks, protection switch lockouts, or protection switches are displayed. Remove all existing loopbacks, protection switch lockouts, or protection switches before continuing with this procedure. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | ||||||
6 |
Select Fault → Analysis → Test Access to access the Test Access Wizard and verify that no test access sessions exist. If required, select Fault → Analysis → Test Access to access the Test Access Wizard and delete all existing test access sessions. Reference: | ||||||
7 |
Important! During this upgrade, any OC-48 BLSR extra traffic tributaries (unprotected) are mapped to the same tributaries (protected) on the OC-192 BLSR. Therefore, traffic that is unprotected on the OC-48 BLSR will be protected on the upgraded OC-192 BLSR. Select View → Cross-Connections to access the required circuit packs and obtain a current list of cross-connections. If required, select Configuration → Cross-Connections to access the Cross-Connection Wizard and delete/change the existing OC-48 BLSR extra traffic cross-connections. | ||||||
8 |
Important! Before upgrading the BLSR, Automatic Ring Discovery must be disabled. Select View → Protection to access the 2F BLSR main-1-1 protection group and click Select. Click on the Provisionable Parameters tab and observe the Automatic Ring Discovery parameter. If required, select Configuration → Equipment to access the 2F BLSR main-1-1 protection group and Disable Automatic Ring Discovery. Important! If necessary, record the original parameter value to be reprovisioned after the upgrade is completed. | ||||||
9 |
At each of the remaining nodes in the BLSR, log in to the node and repeat Step 3 through Step 8. Then continue with the next step. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
10 |
If spanning tree is used for protection on the network being upgraded, this upgrade could cause Ethernet traffic loss when the spanning tree switches to a new topology. Ensure that the spanning tree is configured correctly. Important! Alcatel-Lucent 1665 DMX and Alcatel-Lucent 1665 DMXtend support Ethernet service with spanning tree protection. If Ethernet service is provisioned with spanning tree protection, verify that the existing spanning tree configuration is correct. Reference: Procedure 12-11.6: Verify spanning tree configuration | ||||||
11 |
Identify and log in to the starting node. (Refer to the BLSR example at the end of the procedure.) Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
12 |
Determine the OC-48 OLIU circuit pack types installed in the Main slots of the starting node using Reports → Equipment Lists → Packs. Click Shelf and Select. Observe the Apparatus Code and Series Number of the main-1 and main-2 circuit packs. Click Close. | ||||||
13 |
Important! If Main slot M1 of the starting node is equipped with a pre series 1:6 LNW27, LNW29, LNW76, or LNW221–259 OC-48 OLIU circuit pack, the circuit pack must be replaced with a Series 1:6 or later version of the same OC-48 OLIU circuit pack type. The Series 1:6 or later OC-48 OLIU circuit pack maintains traffic with the last node to be upgraded while Main slot M2 and the other nodes in the ring are upgraded. As a final step, the Series 1:6 or later OC-48 OLIU circuit pack is upgraded. If required, replace the pre series 1:6 LNW27, LNW29, LNW76, or LNW221–259 OC-48 OLIU circuit pack in Main slot M1 of the starting node with a Series 1:6 or later version of the same OC-48 OLIU circuit pack type. Reference: | ||||||
14 |
Important! The Ring Upgrade Mode is required for cross-connections and provisioning data to be mapped to the replacement circuit pack. At the WaveStar® CIT System View at the starting node, select Configuration → Ring Upgrade Mode. Result: A dialog box appears asking you to confirm changing the NE Mode to Ring Upgrade Mode. Click Yes. The ABN LED is lighted on the SYSCTL circuit pack faceplate and the WaveStar® CIT Alarm List shows the Ring Upgrade Mode as Not Alarmed. For more information about the Ring Upgrade Mode, refer to Ring Upgrade Mode. | ||||||
15 |
Important! If Main slot M1 of the starting node is equipped with an LNW26B, LNW28, LNW77, or LNW121B–159B OC-48 OLIU circuit pack, the circuit pack must be replaced with a temporary replacement OC-48 OLIU circuit pack. (Refer to Required equipment for a list of acceptable temporary replacement OC-48 OLIU circuit packs.) The temporary replacement OC-48 OLIU circuit pack maintains traffic with the last node to be upgraded while Main slot M2 and the other nodes in the ring are upgraded. As a final step, this temporary replacement OC-48 OLIU circuit pack is upgraded. If required, replace the LNW26B, LNW28, LNW77, or LNW121B–159B OC-48 OLIU circuit pack in Main slot M1 of the starting node with a temporary replacement OC-48 OLIU circuit pack. Reference: Procedure 12-11.2: Replace LNW26B, 28, 77, 121B-159B OC-48 OLIU in Main slot M1 of starting node | ||||||
16 |
If required, verify the active/standby status of the OC-48 OLIU circuit pack in Main slot M2 and perform manual switches to switch traffic away from an active circuit pack. Reference: Procedure 12-11.5: Verify active/standby status of circuit pack to be replaced | ||||||
17 |
If an OC-192 OLIU circuit pack is connected to an OC-48 OLIU circuit pack equipment damage may occur. Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the OC-48 OLIU circuit pack is upgraded at each end of the optical span. Important! If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. Open the lower faceplate latch on the OC-48 OLIU circuit pack in Main slot M2. 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 replacement OC-192 OLIU circuit pack. Result: A transmission hit will occur after the OC-192 OLIU circuit pack is inserted. The transmission hit is a result of an internal system timing adjustment to accommodate different line rates in the two Main slots. The replacement OC-192 OLIU circuit pack in Main slot M2 is tested and autoprovisioned. The system reports an unexpected circuit pack type condition and an OC48 LOS alarm for Main slot M2. The system also reports a Line Automatic Switch condition for Main slot M2. Alarms may also be reported at other nodes in the ring. If the provisioned system timing mode is External, the system may also report an inc. DS1 sync. ref. OOL alarm. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots This completes the first phase of the BLSR upgrade at the starting node. The starting node upgrade will be completed after all the other nodes in the ring are upgraded. The following figure shows the state of the starting node and the adjacent optical spans.  | ||||||
18 |
Log in to the adjacent node connected to Main slot M2. (Refer to the BLSR example at the end of the procedure.) Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
19 |
Determine the OC-48 OLIU circuit pack types installed in the Main slots using Reports → Equipment Lists → Packs. Click Shelf and Select. Observe the Apparatus Code and Series Number of the main-1 and main-2 circuit packs. Click Close. | ||||||
20 |
Refer to Compatible and incompatible OC-48 OLIU circuit packs for more information about compatible and incompatible OC-48 OLIU circuit packs. | ||||||
21 |
Except for the starting node, have all nodes in the BLSR been upgraded?
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22 |
Log in to the starting node. (Refer to the BLSR example at the end of the procedure.) Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
23 |
Important! The UPD/INIT button does not work during this upgrade. At the System View, select Configuration → Update System → Upgrade. Select main-2 as the Directed Slot Choice and click OK. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The unexpected circuit pack type condition for Main slot M2 clears, and the system reports an unexpected circuit pack type condition for Main slot M1. | ||||||
24 |
If required, verify the active/standby status of the OC-48 OLIU circuit pack in Main slot M1 and perform manual switches to switch traffic away from an active circuit pack. Reference: Procedure 12-11.5: Verify active/standby status of circuit pack to be replaced | ||||||
25 |
Important! If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. Open the lower faceplate latch on the OC-48 OLIU circuit pack in Main slot M1. Disconnect the optical fibers from the OC-48 OLIU circuit pack in Main slot M1. Then replace the OC-48 OLIU circuit pack in Main slot M1 with the replacement OC-192 OLIU circuit pack. Result: A transmission hit will occur after the OC-192 OLIU circuit pack is inserted. The transmission hit is a result of an internal system timing adjustment to accommodate different line rates in the two Main slots. The replacement OC-192 OLIU circuit pack in Main slot M1 is tested and autoprovisioned. The unexpected circuit pack type condition for Main slot M1 clears. The system reports an inc. OC192 LOS alarm and Line Automatic Switch condition for Main slot M1. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots | ||||||
26 |
At both ends of the optical span to be upgraded, perform the following to connect the replacement OC-192 OLIU circuit pack in Main slot M1 and the required OC-192 circuit pack/port at the opposite end of the upgraded OC-192 optical span:
Result: The inc. OC192 LOS alarms and Line Automatic Switch conditions clear. Transmission is now supported on the upgraded optical span. Reference: Procedure 14-4: Perform connection and verification of optical facility | ||||||
27 |
Important! At each node in the BLSR, the system reports the ring upgrade mode standing condition (not alarmed) in the NE Alarm List until the node is manually provisioned back to the Normal mode. At each node in the BLSR, click the Alarm List button in the top right corner of the System View to view the NE Alarm List and verify that no alarms or standing conditions are present (except ring upgrade mode and ABN condition). Refer to the appropriate trouble clearing procedures to clear all existing alarms and standing conditions (except ring upgrade mode and ABN condition) before continuing with this procedure. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | ||||||
28 |
Important! The network must be alarm free with normal transmission before manually provisioning the nodes back to the Normal mode. After a node is manually provisioned back to the Normal mode, the node cannot be returned to the pre-upgrade state using the backout procedure. At each node in the BLSR, select Configuration → Normal Mode. Result: A dialog box appears asking you to confirm changing the NE Mode to Normal mode. Click Yes. The ABN LED is turned off on the SYSCTL circuit pack faceplate and the Ring Upgrade Mode will be removed from the WaveStar® CIT alarm list. | ||||||
29 |
At each node in the BLSR, select View → Protection to access the 2F BLSR main-1-1 protection group and click Select. Click on the Provisionable Parameters tab and observe the Automatic Ring Discovery parameter. If required, select Configuration → Equipment to access the 2F BLSR main-1-1 protection group and Enable Automatic Ring Discovery. | ||||||
30 |
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. At each node in the BLSR, back up the network element database using the Configuration → Software → Remote Backup command. Reference: End of steps |
BLSR example
Starting Node: Alcatel-Lucent 1665 DMX Node N
Starting Circuit Pack: Main-2 at the Starting Node
Direction of Upgrade: Clockwise around BLSR from Main-2 at the Starting Node to Main-1 at the adjacent node.
