Cisco 15310-MA Průvodce řešením problémů stáhnout pdf (Strana 222)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

78-18394-01

Chapter 2 Alarm Troubleshooting

Alarm Procedures

Clear the LOA Alarm

Step 1 In network view, click the Circuits tab.

Step 2 Click the alarmed VCG and then click Edit.

Step 3 In the Edit Circuit window, view the source and destination circuit slots, ports, and STSs.

Step 4 Identify whether the STS travels across different fibers. If it does, complete the “Delete a Circuit”

procedure on page 2-164.

Step 5 Recreate the circuit using the procedure in the “Create Circuits” chapter in the Cisco ONS 15310-CL and

Cisco ONS 15310-MA Procedure Guide.

Step 6 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.

2.7.134 LOCKOUT-REQ

Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

SONET Logical Objects: OCN, STSMON, VT-MON

The Lockout Switch Request on Facility or Equipment condition occurs when a user initiates a lockout

switch request for an OC-N port in a 1+1 facility protection group. This can be accomplished by locking

traffic onto the working port with the LOCK ON command (thus locking it off the protect port), or

locking it off the protect port with the LOCK OUT command. In either case, the protect port will show

“Lockout of Protection,” and the Conditions window will show the LOCKOUT-REQ condition.

A lockout prevents protection switching. Clearing the lockout again allows protection switching and

clears the LOCKOUT-REQ condition.

Clear the LOCKOUT-REQ Condition

Step 1 Complete the “Clear an External Switching Command on a Path Protection Span” procedure on

page 2-161.

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).

2.7.135 LOF (BITS)

Default Severity: Minor (MN), Non-Service-Affecting (NSA)

SONET Logical Object: BITS

The Loss of Frame (LOF) BITS alarm occurs when a port on the BITS input detects an LOF on the

incoming BITS timing reference signal. LOF indicates that the receiving ONS 15310-CL or

ONS 15310-MA has lost frame delineation in the incoming data.

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Cisco 15310-MA Průvodce řešením problémů Strana 222