Procedure 12-27: Suspend UPSR/1+1 upgrade at node (multirate circuit packs)
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 connected to the UPSR/1+1 network using single-rate circuit packs in the Main slots and multirate circuit packs in the Main/Function/Growth slots must be in the provisioned Ring Upgrade Mode.
Important!
This procedure starts at the last node upgraded. The last node upgraded must be connected to the UPSR/1+1 network using single-rate circuit packs in the Main slots or multirate circuit packs in the Main/Function/Growth slots. Suspending an upgrade at a node connected to the UPSR/1+1 network using port pairs on a single-rate circuit pack in the Function/Growth slots is not supported.
This procedure assumes that the last node upgraded is a Alcatel-Lucent 1665 DMXtend node connected to the UPSR/1+1 network using multirate circuit packs in the Main/Function/Growth slots. If the upgrade is suspended at a node connected to the UPSR/1+1 network using single-rate circuit packs, refer to the appropriate suspend procedure for the upgrade being performed.
Use this procedure to temporarily suspend a UPSR/1+1 network upgrade at a Alcatel-Lucent 1665 DMXtend node with multirate circuit packs in the Main/Function/Growth slots.
Suspending an upgrade in progress temporarily stops the upgrade.
To return all nodes in the ring to their pre-upgrade state, refer to the appropriate backout procedure for the upgrade being performed.
When a USPR/1+1 network upgrade is temporarily suspended before completion, some spans are operating at the upgrade line rate and some at the original line rate. This requires two nodes that are equipped with the upgrade circuit pack/port in one Main/Function/Growth slot and the original circuit pack/port in the other Main/Function/Growth slot. These nodes are the starting node and the last node upgraded. These nodes must be connected to the UPSR/1+1 network using single-rate circuit packs in the Main slots or multirate circuit packs in the Main/Function/Growth slots. Suspending an upgrade at a node connected to the UPSR/1+1 network using port pairs on single-rate circuit packs in the Function/Growth slots is not supported.
To continue to operate temporarily with different line rates in Main/Function/Growth slots, the starting node and the nodes that have been upgraded must remain in the Ring Upgrade Mode.
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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:
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Refer to Laser safety and Electrostatic discharge in Chapter 1, Safety.
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Review the applicable Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) 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. This procedure assumes that the last node upgraded is a Alcatel-Lucent 1665 DMXtend node connected to the UPSR/1+1 network using multirate circuit packs in the Main/Function/Growth slots.
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 temporarily suspend an UPSR/1+1 network upgrade at a Alcatel-Lucent 1665 DMXtend using multirate circuit packs..
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/Function/Growth slots have been upgraded. All traffic is now active on Main/Function/Growth slot 1, and the system is reporting an inc. LOF or inc. LOS alarm for Main/Function/Growth slot 2. Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 2. Click on the required upgrade port and Select to obtain the port parameters. Provision the port Signal Type parameter to original port rate and click Apply. Result:
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3 |
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 upgrade pluggable transmission module in Main/Function/Growth slot 2. Then replace the single-rate upgrade pluggable transmission module in Main/Function/Growth slot 2 with the original pluggable transmission module. Result: The original 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 ring. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||
4 |
If required at both ends of the optical span to be upgraded, perform the following to connect the original pluggable transmission module in Main/Function/Growth slot 2 and the required circuit pack/port at the opposite end of the original optical span:
Result: The inc. LOS alarms clear. Transmission is now supported on the original optical span. 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, reprovision the port signal type parameter to the upgrade port rate and replace the single-rate pluggable transmission module (if equipped) in Main/Function/Growth slot 2. Refer to the appropriate procedure for the upgrade being performed. To back out the upgrade, refer to the appropriate procedure for the upgrade being performed. End of steps |