Troubleshooting guide

10
Release Notes for Cisco ONS 15454 Release 7.0.2
OL-11368-01
Caveats
created, the alarm behavior is not the same as in two way circuit creation. In particular, for the one way
circuit creation, UNEQ-V and PLM-V alarms are reported, and the circuit state remains OOS. This issue
will not be resolved.
CSCdw66444
When an SDH signal is sent into an ONS 15454 OC-12/STM-4 (IR, 1310 LR and 1550 LR) or an
OC-48/STM-16 high-speed (IR and LR) port which has been configured to support SDH, an SD-P
(Signal Degrade) alarm will appear as soon as the circuit is created. This alarm will continue to exist
until the circuit is deleted.
To avoid this problem, when provisioning an OC-12/STM-4 (IR, 1310 LR and 1550 LR) or an
OC-48/STM-16 high-speed (IR and LR) port to support SDH, disable the signal degrade alarm at the
path level (SD-P) on the port.
Also, PM data at the path level will not be reliable. You must set associated threshold values to 0 in order
to avoid threshold crossing alerts (TCA) on that port. The path threshold values to set to zero are CV-P,
ES-P, SES-P, and UAS-P.
These issues are the result of a hardware limitation, and there are no current plans to resolve them.
CSCdw09604
If you are using an XC10G with OC-48, you must use either OC-48AS or OC-48 cards with a revision
number higher than 005D.
Electrical IO Cards
CSCsc65320 and CSCin92295
In a DS3-EC1-48 1:N protection group for which a UPSR circuit drops onto a 1:N protected card, if you
remove the card and then reseat it the switch time might exceed 60 ms. This issue will be resolved in a
future release.
CSCsc60437
DS3XM one way circuits created with no electrical lines attached to the ports fail to carry traffic. This
issue will be resolved in Release 8.0.
CSCei59527
When an XC switch occurs, LOF is driven to the line side. On a DS1-14 this can cause us to see long
switch times that are related to hardware issues if the “Treat LOF as a Defect” flag has been set. To avoid
this issue, do not set the “Treat LOF as a Defect” flag to true on DS1-14 cards. A future release will
remove the “Treat LOF as a Defect” option for this card.