Cisco 15310-MA Průvodce řešením problémů stáhnout pdf (Strana 221)

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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 LINK-KEEPALIVE Alarm

Step 1 Verify that no SONET or GFP circuit alarms that could impact Ethernet data traffic are present. If any

are present, clear them using the relevant procedures in this chapter.

Step 2 Verify that the “DATA-CRC;” alarm on page 2-48 is not present. If it is present, complete the

trouble-clearing procedure.

Step 3 Verify that the keep-alive timer on this IEEE RPR 802.17b-based station has the same value as its

neighboring RPR-IEEE stations.

Step 4 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).

2.7.132 LKOUTPR-S

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

SONET Logical Object: OCN

The Lockout of Protection Span condition occurs when UPSR traffic is locked out of a protect span using

the “Lockout of Protect” command. This condition is visible on the network view Alarms, Conditions,

and History tabs after the lockout has occurred and accompanies the FE-LOCKOUTPR-SPAN condition.

The port where the lockout originated is marked by an “L” on the network view detailed circuit map.

Clear the LKOUTPR-S 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).

2.7.133 LOA

Default Severity: Critical (CR), Service-Affecting (SA)

SONET Logical Object: VCG

The Loss of Alignment on a VCG is a VCAT member alarm. (VCAT member circuits are independent

circuits that are concatenated from different time slots into a higher-rate signal.) The alarm occurs when

members of a VCG travel over different paths in the network (due to initial operator provisioning or to

protection or restoration events) and the differential delays between the paths cannot be recovered by

terminating hardware buffers.

Note This alarm occurs only if you provision circuits outside of CTC, such as by using TL1.

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