Back out 1+1 network upgrade (multirate circuit packs)

Procedure 12-26: Back out 1+1 network upgrade (multirate circuit packs)

Overview

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 1+1 network must be in the provisioned Ring Upgrade Mode.

Use this procedure to back out an 1+1 network upgrade where the near-end and far-end nodes are connected to the 1+1 network using multirate circuit packs.

Backing out of an upgrade in progress returns all nodes in the 1+1 network to their pre-upgrade state.

To temporarily stop the upgrade refer to Procedure 12-27: Suspend UPSR/1+1 upgrade at node (multirate circuit packs).

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:

Optical power meter
Wrist strap
Original single-rate pluggable transmission modules for the near-end and far-end nodes
As the upgrade is backed out around the 1+1 network, ensure that technicians are available at each end of an optical span as the upgrade is backed out.

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 in Chapter 1, Safety.
Review the applicable Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Software Release Description for any detailed procedures or cautions that may apply to this backout 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 backout 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.

Steps

Important!

This procedure starts at the last node upgraded.

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 back out of a 1+1 network upgrade.

From office records and work instructions, determine the network configuration and current status of the upgrade.

Identify the last node that was upgraded.

If the last node upgraded is...	Then...
the near-end Alcatel-Lucent 1665 DMXtend node (starting node) and the 1+1 network upgrade is complete (all nodes connected to the 1+1 network are in the Ring Upgrade Mode),	Identify and log in to the near-end Alcatel-Lucent 1665 DMXtend node (starting node) in the 1+1 network and continue with the next step.
not the near-end Alcatel-Lucent 1665 DMXtend node (starting node) and both Main/Function/Growth slots have been upgraded,	Log in to the last node upgraded and proceed to Step 6.
not the near-end Alcatel-Lucent 1665 DMXtend node (starting node) and only Main/Function/Growth slot 1 has been upgraded,	Log in to the last node upgraded and proceed to Step 10.

Reference:

Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar^® CIT session

If required, verify the active/standby status of the upgrade 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.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Protection" Switch Type and click Apply.

If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Working" Switch Type and click Apply.

Reference:

Procedure 12-26.1: Verify active/standby status of port to be backed out

Important!

Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the port is backed out 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.

If the multirate circuit pack in Main/Function/Growth slot 2 is equipped with a...

Then...

single-rate pluggable transmission module,

Perform the following:

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 the original rate and click Apply.

The system reports an unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 2. Alarms may also be reported at other nodes in the network.
Disconnect the optical fibers from the upgrade pluggable transmission module in Main/Function/Growth slot 2.
Replace the 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 network.

multirate pluggable transmission module,

Select Configuration → Equipment and expand the port 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 the original rate and click Apply.

Result:

The system reports an inc. LOF 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

Identify and log in to the far-end Alcatel-Lucent 1665 DMXtend node in the 1+1 network to be backed out.

Reference:

Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar^® CIT session

If required, verify the active/standby status of the upgrade 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.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Protection" Switch Type and click Apply.

If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Working" Switch Type and click Apply.

Reference:

Procedure 12-26.1: Verify active/standby status of port to be backed out

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 original rate and click Apply.

Result:

If the multirate circuit pack in Main/Function/Growth slot 2 is equipped with a...

Then...

single-rate pluggable transmission module,

The system reports an unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 2.

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) and section DCC channel failed alarms. Alarms may also be reported at other nodes in the network.

multirate pluggable transmission module and the opposite end of the upgraded optical span is equipped with a single-rate pluggable transmission module,

The system reports an inc. LOS alarm for Main/Function/Growth slot 2. Alarms may also be reported at other nodes in the network.

multirate pluggable transmission module and the opposite end of the upgraded optical span is equipped with a multirate pluggable transmission module,

The inc. LOF alarms clear. Transmission is now supported on the original optical span.

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 upgrade pluggable transmission module in Main/Function/Growth slot 2. Then replace the 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.

Reference:

Procedure 4-16: Install pluggable transmission modules

If required at both ends of the optical span to be backed out, perform the following to connect the original pluggable transmission module in Main/Function/Growth slot 2 and the required port at the opposite end of the original optical span:

Clean and connect the transmit optical fibers.
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.)
Clean and connect the receive fibers.

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

If required, verify the active/standby status of the upgrade 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.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Protection" Switch Type and click Apply.

If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Working" Switch Type and click Apply.

Reference:

Procedure 12-26.1: Verify active/standby status of port to be backed out

Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 1. Click on the required upgrade port and Select to obtain the port parameters. Provision the port Signal Type parameter to the original rate and click Apply.

Result:

If the multirate circuit pack in Main/Function/Growth slot 1 is equipped with a...	Then...
single-rate pluggable transmission module,	The system reports an `unexpected or failed Pluggable Transmission Module` alarm for Main/Function/Growth slot 1. Alarms may also be reported at other nodes in the network.
multirate pluggable transmission module,	The system reports an `inc. LOF` alarm for Main/Function/Growth slot 1. Alarms may also be reported at other nodes in the network.

Important!

Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the port is backed out at each end of the optical span.

If required, disconnect the optical fibers from the upgrade pluggable transmission module in Main/Function/Growth slot 1. Then replace the upgrade pluggable transmission module in Main/Function/Growth slot 1 with the original pluggable transmission module.

Result:

The original 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.

If the original port in Main/Function/Growth slot 1 is equipped with a multirate pluggable transmission module, inc. LOF alarms are reported.

Reference:

Procedure 4-16: Install pluggable transmission modules

Reference:

Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar^® CIT session

If required, verify the active/standby status of the upgrade 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.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Protection" Switch Type and click Apply.

If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch.

Select Fault → Protection Switch.
Select the required 1+1 Line and click Select.
Select the "Manual to Working" Switch Type and click Apply.

Reference:

Procedure 12-26.1: Verify active/standby status of port to be backed out

Result:

If the multirate circuit pack in Main/Function/Growth slot 1 is equipped with a...

Then...

single-rate pluggable transmission module,

The system reports an unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 1.

multirate pluggable transmission module and the opposite end of the upgraded optical span is equipped with a single-rate pluggable transmission module,

The system reports an inc. LOS alarm for Main/Function/Growth slot 1. Alarms may also be reported at other nodes in the network.

multirate pluggable transmission module and the opposite end of the upgraded optical span is equipped with a multirate pluggable transmission module,

The inc. LOF alarms clear. Transmission is now supported on the original optical span.

Important!

Result:

The original pluggable transmission module in Main/Function/Growth slot 1 is tested and autoprovisioned.

Reference:

Procedure 4-16: Install pluggable transmission modules

If required at both ends of the optical span to be backed out, perform the following to connect the original pluggable transmission module in Main/Function/Growth slot 1 and the required port at the opposite end of the original optical span:

Clean and connect the transmit optical fibers.
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.)
Clean and connect the receive fibers.

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

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:

Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302
Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Alarm Messages and Trouble Clearing Guide, 365-372-326

Important!

This completes the backout procedure, except for taking the nodes connected to the 1+1 network out of the Ring Upgrade Mode. The decision to take these nodes out of the Ring Upgrade Mode or leave them depends on the reason the back out was necessary, and what is required before again starting the upgrade. In the Ring Upgrade Mode, cross-connections cannot be created or removed.

If required 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.

End of steps