Procedure 12-25: Upgrade 1+1 network (multirate circuit packs)
Overview
Use this procedure to upgrade the OC-n bandwidth capacity of an in-service 1+1 network. The following upgrades are supported:
Important!
The optical 1+1 network must be equipped with Alcatel-Lucent 1665 DMXtend and/or Alcatel-Lucent 1665 DMX nodes only connected to the network using single multirate circuit packs in the Main/Function/Growth slots. This upgrade procedure does not support upgrading optical 1+1 networks equipped with nodes other than Alcatel-Lucent 1665 DMXtend and/or Alcatel-Lucent 1665 DMX. .
This procedure assumes that an Alcatel-Lucent 1665 DMXtend node is interconnected in an optical 1+1 network using multirate circuit packs in the Main/Function/Growth slots with one of the following nodes:
-
Another Alcatel-Lucent 1665 DMXtend node using multirate circuit packs in the Main/Function/Growth slots.
-
An Alcatel-Lucent 1665 DMX node using multirate circuit packs in the Main/Function/Growth slots.
At nodes connected to the 1+1 network using multirate OC-3/OC-12/OC-48 OLIU circuit packs in the Main/Function/Growth slots equipped with single-rate pluggable transmission modules, the original pluggable transmission modules are replaced with upgrade pluggable transmission modules.
At nodes connected to the 1+1 network using multirate OC-3/OC-12/OC-48 OLIU circuit packs in the Main/Function/Growth slots equipped with multirate pluggable transmission modules, the port Signal Type parameter of each port in the original port pair is independently reprovisioned to the upgrade port rate.
This procedure assumes that the circuit pack in Main/Function/Growth slot 1 is always connected to the circuit pack in Main/Function/Growth slot 1 at the far-end node, and the circuit pack in Main/Function/Growth slot 2 is always connected to the circuit pack in Main/Function/Growth slot 2 at the far-end node. (Refer to the 1+1 network configuration examples at the end of the procedure.)
Ring Upgrade Mode
During upgrades with multirate OC-3/OC-12/OC-48 OLIU circuit packs, the Ring Upgrade Mode allows ports in the protected port pair to be independently reprovisioned and operate at different rates.
The Ring Upgrade Mode prohibits the following operations:
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 optical 1+1 network, 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.
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.
|
If the Remote NE Status parameter is... |
Then... |
|---|---|
|
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. |
|
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. |
|
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:
-
As optical spans are upgraded in the 1+1 network, ensure that technicians are available at each end of an optical span as it is upgraded.
-
At each Alcatel-Lucent 1665 DMXtend node connected to the 1+1 network using single-rate pluggable transmission modules, 2 replacement upgrade pluggable transmission modules.
The replacement pluggable transmission modules must have compatible optics. For example, do not replace a pluggable transmission modules that has long reach optics with a pluggable transmission modules that has intermediate reach optics. Refer to Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Applications and Planning Guide, 365-372-324 for the SONET optical specifications.
Important!
Release 9.0 or later software is required to support the 1+1 network upgrade.
Important!
All nodes in the existing network must have the same software release before upgrading the network.
 |
NOTICE Service-disruption hazard |
Removing or installing pluggable transmission modules during a System Reset can cause system errors.
Do not remove or install a pluggable transmission module during a System Reset. If a System Reset occurs, wait until the System Reset is complete, then remove or install the pluggable transmission module.
Before you begin
Prior to performing this procedure:
-
Refer to Laser safety and Electrostatic discharge information in Chapter 1, Safety.
-
Review the applicable office records for each fiber span in the 1+1 network and the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Applications and Planning Guide, 365-372-324 for detailed SONET optical specifications of the pluggable transmission modules. Ensure that the upgrade pluggable transmission modules are compatible with each fiber span in the 1+1 network. If required, refer to the Alcatel-Lucent 1665 Data Multiplexer (DMX) Applications and Planning Guide, 365-372-300.
-
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. If required, refer to the Alcatel-Lucent 1665 Data Multiplexer (DMX) Customer Release Notes .
-
If required, review the Alcatel-Lucent 1665 Data Multiplexer (DMX) User Operations Guide, 365-372-301 for procedures or cautions that may apply to this upgrade procedure.
-
Determine the local operating procedures for removing a pluggable transmission module. Local operating procedures for removing a pluggable transmission module may vary. One method is to disconnect the optical fibers and remove the pluggable transmission module. Another method is to verify the port active/standby status, perform manual switches if the port is active, and then disconnect the optical fibers and remove the pluggable transmission module.
-
At nodes upgraded to the OC-48 rate, select View → Equipment to access the required circuit pack and verify that the port and port grouping will support the upgrade to the OC-48 rate. Only the first port in the port grouping supports the OC-48 rate. The remaining ports in the port grouping must be unavailable. When the first port in a port group is provisioned to OC-48, the other ports become unavailable. If the OC-12 port to be upgraded is not the first port in the port grouping or other ports in the port grouping are carrying service, the service must be moved before performing this upgrade procedure. To move service to another port pair refer to Procedure 12-4.1: Upgrade low-speed OC-12 UPSR connections at node with single-rate circuit packs. For more information about port groupings, refer to Procedure 4-16: Install pluggable transmission modules.
Steps
Important!
When optical fibers are disconnected during this procedure, inc. LOS 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 an in-service 1+1 network.
1 |
From office records and work instructions, determine the current 1+1 network configuration. Note how the nodes are connected in the 1+1 network and make a drawing of the 1+1 network to reference during this upgrade procedure. Reference: Refer to the 1+1 network configuration examples at the end of the procedure. | ||||||||
2 |
Identify and log in to an Alcatel-Lucent 1665 DMXtend node in the 1+1 network to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
3 |
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:
| ||||||||
4 |
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:
| ||||||||
5 |
Important! Alcatel-Lucent 1665 DMXtend and Alcatel-Lucent 1665 DMX support test access. If required, 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: | ||||||||
6 |
Log in to the other node in the 1+1 network and repeat Step 3 through Step 5. Then continue with the next step. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
7 |
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 DMXtend and Alcatel-Lucent 1665 DMX 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 12-25.2: Verify spanning tree configuration | ||||||||
8 |
Identify and log in to the near-end Alcatel-Lucent 1665 DMXtend node (starting node) in the 1+1 network to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
9 |
Important! The Ring Upgrade Mode is required to allow ports in the protected port pair to be independently reprovisioned and operate at different rates. At the WaveStar® CIT System View, 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. | ||||||||
10 |
If required, verify the active/standby status of the original port on the multirate circuit pack in Main/Function/Growth slot 1 and perform manual switches to switch traffic away from an active port. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-25.1: Verify active/standby status of port to be upgraded | ||||||||
11 |
Important! Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the port is upgraded at each end of the optical span. If the port is active for timing and/or transmission, disconnecting fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||||
12 |
Identify and log in to the far-end Alcatel-Lucent 1665 DMXtend node in the 1+1 network to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
13 |
Important! The Ring Upgrade Mode is required to allow ports in the protected port pair to be independently reprovisioned and operate at different rates. At the WaveStar® CIT System View, 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. | ||||||||
14 |
If required, verify the active/standby status of the original port on the multirate circuit pack in Main/Function/Growth slot 1 and perform manual switches to switch traffic away from an active port. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-25.1: Verify active/standby status of port to be upgraded | ||||||||
15 |
Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 1. Click on the required original port and Select to obtain the port parameters. Provision the port Signal Type parameter to the upgrade rate and click Apply. Result:
| ||||||||
16 |
Important! If the port is active for timing and/or transmission, disconnecting the optical fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. If required, disconnect the optical fibers from the single-rate pluggable transmission module in Main/Function/Growth slot 1. Then replace the single-rate pluggable transmission module in Main/Function/Growth slot 1 with the upgrade pluggable transmission module. Result: The upgrade pluggable transmission module in Main/Function/Growth slot 1 is tested and autoprovisioned. The unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 1 clears, and the system reports an inc. LOS alarm for Main/Function/Growth slot 1. Alarms may also be reported at other nodes in the network. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||||
17 |
If required at both ends of the optical span to be upgraded, perform the following to connect the upgrade pluggable transmission module in Main/Function/Growth slot 1 and the required port at the opposite end of the upgraded optical span:
Result: The inc. LOS alarms clear. Transmission is now supported on the upgraded optical span. Reference: Procedure 14-4: Perform connection and verification of optical facility | ||||||||
18 |
If required, verify the active/standby status of the original port on the multirate circuit pack in Main/Function/Growth slot 2 and perform manual switches to switch traffic away from an active port. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-25.1: Verify active/standby status of port to be upgraded | ||||||||
19 |
Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 2. Click on the required original port and Select to obtain the port parameters. Provision the port Signal Type parameter to the upgrade rate and click Apply. Result:
| ||||||||
20 |
Important! Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the port is upgraded at each end of the optical span. If the port is active for timing and/or transmission, disconnecting the optical fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. If required, disconnect the optical fibers from the single-rate pluggable transmission module in Main/Function/Growth slot 2. Then replace the single-rate pluggable transmission module in Main/Function/Growth slot 2 with the upgrade pluggable transmission module. Result: The upgrade pluggable transmission module in Main/Function/Growth slot 2 is tested and autoprovisioned. The unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 2 clears, and the system reports an inc. LOS alarm for Main/Function/Growth slot 2. Alarms may also be reported at other nodes in the network. If the upgraded port in Main/Function/Growth slot 2 is equipped with a multirate pluggable transmission module, inc. LOF alarms are reported. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||||
21 |
Log in to the near-end Alcatel-Lucent 1665 DMXtend node (starting node) in the 1+1 network to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||||
22 |
If required, verify the active/standby status of the original port on the multirate circuit pack in Main/Function/Growth slot 2 and perform manual switches to switch traffic away from an active port. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-25.1: Verify active/standby status of port to be upgraded | ||||||||
23 |
Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 2. Click on the required original port and Select to obtain the port parameters. Provision the port Signal Type parameter to the upgrade rate and click Apply. Result:
| ||||||||
24 |
Important! If the port is active for timing and/or transmission, disconnecting the optical fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. If required, disconnect the optical fibers from the single-rate pluggable transmission module in Main/Function/Growth slot 2. Then replace the single-rate pluggable transmission module in Main/Function/Growth slot 2 with the upgrade pluggable transmission module. Result: The upgrade pluggable transmission module in Main/Function/Growth slot 2 is tested and autoprovisioned. The unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 2 clears, and the system reports an inc. LOS alarm for Main/Function/Growth slot 2. Alarms may also be reported at other nodes in the network. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||||
25 |
If required at both ends of the optical span to be upgraded, perform the following to connect the upgrade pluggable transmission module in Main/Function/Growth slot 2 and the required port at the opposite end of the upgraded optical span:
Result: The inc. LOS alarms clear. Transmission is now supported on the upgraded optical span. Reference: Procedure 14-4: Perform connection and verification of optical facility | ||||||||
26 |
Important! At nodes connected to the 1+1 network, 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 nodes connected to the 1+1 network, 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:
| ||||||||
27 |
Important! The 1+1 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 can not be returned to the pre-upgrade state using the backout procedure. At each node connected to the 1+1 network, 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. | ||||||||
28 |
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 upgrade ports. 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 1+1 network, back up the network element database using the Configuration → Software → Remote Backup command. Reference: End of steps |
1+1 network configuration examples
Nodes connected to the 1+1 network using the Main Slots
Figure 12-14: Nodes connected using Main slots
Figure 12-15: Nodes connected using Main slots and Function/Growth slots
Figure 12-16: Nodes connected using Function/Growth slots
