Field Notice: FN - 62360 - 15454-32-WSS - Optical Channels Cannot Be Added to an ROADM-based Network After Software Upgrade to Release 6.0.1 or Release 7.0

March 10, 2006

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

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Products Affected

Type	HW ID/SW Version	Comments
Hardware	15454-32-WSS	All Versions
Software	15454-LIC-6.0.1K9	--
Software	15454-LIC-7.0.0K9	--
Software	15454-R6.0.1SWK9	--
Software	15454-R7.0.0SWK9	--
Software	15454E-LIC-6.0.1K9	--
Software	15454E-LIC-7.0.0K9	--
Software	15454E-R6.0.1SWK9	--
Software	15454E-R7.0.0SWK9	--

Problem Description

The 15454-32-WSS unit reports an Incoming Payload Signal Absent (LOS-P) alarm due to an incorrect setting of the VOA power regulation start-up threshold.

Background

The issue was found during a Software upgrade from Release R5.0.3 to Release R7.0.0. This issue has been corrected in software R6.2.0 and R7.0.1.

Problem Symptoms

An affected 15454-32-WSS unit may report an Incoming Payload Signal Absent (LOS-P) alarm on Pass-Through ports (between #33 and #64):

1. After the creation of an Optical Channel Network Connection (OCHNC) or Optical Channel Client Connection circuit (OCHCC) which passes through the 15454-32-WSS

2. After the optical power at the input of the 15454-32-WSS is reduced below the threshold for a specific channel

This situation may occur after an ROADM-based network has been upgraded to one of the Software releases mentioned in this Field Notice.

Workaround/Solution

After a software upgrade of the network to Release 6.0.1 or to Release 7.0.0, the VOA Attenuation Calib parameter of 32-WSS units in the network, available via the Provisioning, Parameters panel in CTC, shall be set to -7 for all the ports between #33 and #64 (see figure below for details). This change has to be done on all the 32-WSS Pass-Through ports before creating new OCHNC or OCHCC circuits.

In case the LOS-P alarm is reported by a 15454-32-WSS Pass-Through port after the VOA Attenuation Calib has been adjusted as indicated above, set the Optical Channel passing through the alarmed port to Out-Of-Service (OOS) and then back In-Service (IS). The Optical Channel on which the described operation needs to be performed can be determined looking at the Actual Wavelength associated with the alarmed port, available via the Provisioning, Parameters panel in CTC, and then matching it with the OCHNC Wlen column of the Circuits panel in CTC (see picture below for details).

This issue has been corrected through a software change implemented in Release 6.2 and Release 7.0.1.

Both Releases will be available on Cisco's Software Center by late March 2006.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS	Description
CSCsd55460 (registered customers only)	Optical Channels cannot be added to an ROADM-based network

Revision History

Revision	Date	Comment
1.0	10-MAR-2006	Initial Public Release

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For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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