Cisco Cisco ONS 15454 SDH Multiservice Provisioning Platform (MSPP)

This section documents supplemental information that has been added to the Release Notes for 
Cisco ONS 15454 SDH Release 8.5.1 since the production of the Cisco ONS 15454 SDH System 
Software CD for Release 8.5.1.

Added 

 under DWDM sub-section of the Caveats 

section.

Review the notes listed below before deploying Cisco ONS 15454. Caveats with tracking numbers are 
known system limitations that are scheduled to be addressed in a subsequent release. Caveats without 
tracking numbers are provided to point out procedural or situational considerations when deploying the 
product.

The usage of 40WXC units are supported only in the networks running software Release 8.5.1 and later.

This section documents Alarms caveats in Release 8.5.1.

AIS-L alarm is not visible against EC1 port, if LOS or LOF is injected on to the port. EC1 port is in 
service and there is no circuit present. This is a hardware limitation which detects AIS-L received from 
line side, but it cannot raise AIS-L when it receives LOS or LOF from the line.

When a VC_LOW_PATH_TUNNEL only contains unidirectional circuits, an AU-LOP critical alarm is 
raised. This can occur when a bidirectional tunnel goes through at least three nodes, and the AU-LOP 
alarm is shown on the intermediate node on the direction not used. Tunnels are bidirectional. If a tunnel 
does not have traffic in both directions, it will raise an alarm. The alarm will be cleared when a 
bidirectional circuit is added to the tunnel. This issue will not be resolved.

Rarely, an LP TIM alarm displays its severity as NR instead of MJ in Cisco Transport Controller (CTC). 
This can occur when a VC3 circuit is created on Port 5 and IO has detected a VC4 PLM alarm. This issue 
will not be resolved.

Improper Removal alarm is raised on Slot-24 on activation even when the card is not present in Slot-24 
before activation. Workaround is to connect Slots 23 and 24 to power modules.