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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.188 LCAS-RX-FAIL
Note For more information about the CE-MR-10 and ML-MR-10 Ethernet cards, refer to the
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration
Guide.
Clear the LCAS-RX-DNU Condition
Step 1 Look for any SONET failures, such as the RFI-P and RFI-V alarms, on the source node. If any are
present, clear them using the relevant procedures in this chapter.
Step 2 If the condition 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.
2.7.188 LCAS-RX-FAIL
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: STSTRM, VT-TERM
The LCAS VCG Member Receive-Side-In Fail condition is raised against FC_MR-4 cards, CE-series
and ML-Series Ethernet cards with LCAS-enabled VCG.
LCAS VCGs treat failures unidirectionally, meaning that failures of the transmit or receive points occur
independently of each other. The LCAS-RX-FAIL condition can occur on the receive side of an LCAS
VCG member for the following reasons:
• SONET path failure (a unidirectional failure as seen by the receive side)
• VCAT member is set out of group at the transmit side, but is set in group at the receive side
• VCAT member does not exist at the transmit side but does exist and is in group at the receive side
The condition can be raised during provisioning operations on LCAS VCGs but should clear when the
provisioning is completed.
Software-enabled LCAS VCGs treat failure bidirectionally, meaning that both directions of a VCG
member are considered failed if either transmit or receive fails. The LCAS-RX-FAIL condition is raised
on these VCG members when a member receive side fails due to a SONET path failure.
Note For more information about the ML-Series Ethernet cards, refer to the Cisco ONS 15454 and
Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide.
Note ML-Series cards are LCAS-enabled. ML-Series and FC_MR-4 cards are SW-LCAS enabled.
Clear the LCAS-RX-FAIL Condition
Step 1 Check for and clear any line or path alarms (typically ending in “-L” or “-P”).
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