Cisco ONS 15454 Troubleshooting Manual page 350

2.7.214 LOP-V
2.7.214 LOP-V
The LOP VT alarm indicates a loss of pointer at the VT level.
The LOP-V alarm can occur when the received payload does not match the provisioned payload. LOP-V
is caused by a circuit size mismatch on the concatenation facility.
Clear the LOP-V Alarm
Step 1 Complete the
Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Caution
Plug the wristband cable into the ESD jack located on the lower-right edge of the shelf assembly.
Step 2 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC 1 800 553-2447 in order to report a Service-Affecting (SA)
problem.
2.7.215 LO-RXPOWER
The Equipment Low Receive Power alarm is an indicator for TXP_MR_10G, TXP_MR_2.5G,
TXPP_MR_2.5G, TXP_MR_10E, MXP_2.5G_10G, MRC-12, MRC-4, and OC192-XFP card received
optical signal power. LO-RXPOWER occurs when the measured optical power of the received signal
falls below the threshold value, which is user-provisionable.
For more information about MXP or TXP cards, refer to the Cisco ONS 15454 DWDM Reference
Note
Manual.
When you upgrade a node to Software Release 6.0 or later, this enables received optical power PMs for
Note
the OC3-8, OC192-SR, OC192-IR, OC192-ITU, OC-192-XFP, MRC-12, and MRC25G-4 cards. The
newly enabled HI-RXPOWER and LO-RXPOWER alarms require that you initialize a site-accepted
optical power (OPR0) nominal value after the upgrade. (To do this, refer to the procedure in the "Turn
Up a Node" chapter in the Cisco ONS 15454 Procedure Guide.) When you apply the value change, CTC
uses the new OPR0 value to calculate PM percentage values. If you do not change the nominal value, the
HI-RXPOWER or LO-RXPOWER may be raised in response to the unmodified setting.
Cisco ONS 15454 Troubleshooting Guide, R8.5
2-156
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Objects: VT-MON, VT-TERM
"Clear the LOP-P Alarm" procedure on page
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
DWDM Logical Objects: 2R, ESCON, FC, GE, ISC, TRUNK
Chapter 2 Alarm Troubleshooting
2-155.
November 2009