Kb-Passthr; Lasereol; Lcas-Crc; Lcas-Rx-Fail - Cisco ONS 15310-CL Troubleshooting Manual

1.7.122 KB-PASSTHR

Step 1 Look for and clear any bit error rate conditions at the transmit node. b.
If no equipment or SONET path errors exist, ensure that the remote node has LCAS enabled on the
Step 2
circuit by completing the following steps:
Tip You can record long strings of information such as the MAA address by using the CTC export and print
a.
functions. Export it by choosing File > Export > html. Print it by choosing File > Print.
b.
c.
c.
d.
d.
If the column does not say LCAS, complete the
Step 3
e.
it in LCAS mode using the instructions in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet
Card Software Feature and Configuration Guide.
Step 4 If the condition does not clear, log into the Technical Support Website at
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 9
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).
for more information or call Cisco TAC (1 800 553-2447).

0.0.1 LCAS-RX-FAIL

1.7.122 KB-PASSTHR
The KB-PASSTHR condition is not used in the ONS 15310 platforms in this release. It is reserved for
development.
The LCAS VCG Member Receive-Side-In Fail condition is raised against ML-100T-8 Ethernet and
CE-100T cards with LCAS-enabled VCG or software-enabled LCAS (SW-LCAS) VCG.

1.7.123 LASEREOL

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
The LASEREOL alarm is not used in the ONS 15310 platforms in this release. It is reserved for
VCG member for the following reasons:
development.
•
•

1.7.124 LCAS-CRC

•
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
The Link Capacity Adjustment Scheme (LCAS) Control Word CRC Failure condition is raised against
member are considered failed if either transmit or receive fails. The LCAS-RX-FAIL condition is raised
ML-100T-8 Ethernet and CE-100T cards. It occurs when there is an equipment, path, or provisioning
on these VCG members when a member receive side fails due to a SONET path failure.
error on the virtual concatenation group (VCG) that causes consecutive 2.5 second CRC failures in the
LCAS control word.
The condition can occur if an LCAS-enabled node (containing ML-100T-8 cards) transmitting to another For more information about Ethernet cards, refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA
Note
LCAS-enabled node delivers faulty traffic due to an equipment or SONET path failure. Transmission Ethernet Card Software Feature and Configuration Guide.
errors would also be reflected in CV-P, ES-P, or SES-P performance-monitoring statistics. (For more
information about performance-monitoring statistics, see the "Performance Monitoring" chapter in the
Cisco ONS 15310-CL and Cisco ONS 1310-MA Reference Manual.) If these errors do not exist, an
ONS 15310-CL ML-100T-8-Series cards are LCAS-enabled.
Note
equipment failure is indicated.
If LCAS is not supported on the peer node, the condition does not clear.

Clear the LCAS-RX-FAIL Condition

LCAS-CRC can also occur if the VCG source node is not LCAS-enabled, but the receiving node does
have the capability enabled. Both source and destination nodes must have LCAS enabled. Otherwise, the
LCAS-CRC condition persists on the VCG.
Step 1 Check for and clear any line or path alarms using the procedures in this chapter.
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-82
Record the primary MAA and secondary MAAs, if configured.
In node view, click the Circuits tab.
Choose the VCAT circuit and click Edit.
Log into the other node and record the primary MAA and secondary MAAs, if configured.
In the Edit Circuit window, click the General tab.
Compare this information. There should be at least one common primary or secondary MAA in
Verify that the Mode column says LCAS.
order to establish an adjacency.
If there is no common MAA, one must be added to establish an adjacency. Refer to the "Turn Up
Node" chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide for
procedures to do this.
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: STSTRM, VT-TERM
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.
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: STSTRM, VT-TERM
"Delete a Circuit" procedure on page 1-156
Chapter 1 Alarm Troubleshooting
and recreate
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