Cisco 15310-MA Guia de Resolução de Problemas descarregar pdf (Página 224)

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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 LOF (DS1) Alarm

Step 1 Verify that the line type and line coding match between the DS-1 port and the signal source by

completing the following steps:

a. In CTC, note the slot and port reporting the alarm.

b. Find the coding and line type formats of the signal source for the port reporting the alarm. You might

need to contact your network administrator for the format information.

c. Display the card view of the reporting DS-1 card (15310-CL-CTX, DS1-28/DS3-EC1-3, or

DS1-84/DS3-EC1-3).

d. Click the Provisioning > DS1 > Line tabs.

e. Verify that the line type of the reporting port matches the line type of the signal source (DS4 and

DS4, unframed and unframed, or ESF and ESF). If the signal source line type does not match the

reporting port, click the Line Type cell to reveal a drop-down list and choose the matching type.

f. Verify that the reporting Line Coding matches the signal source line coding (AMI and AMI or B8ZS

and B8ZS). If the signal source line coding does not match the reporting port, click the Line Coding

cell and choose the correct type from the drop-down list.

g. Click Apply.

Note On the Line tab, the B8ZS coding field is normally paired with ESF in the Line Type field.

AMI coding is normally paired with SF (D4) in the Line Type field.

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.

2.7.137 LOF (DS3)

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

SONET Logical Object: DS3

The DS-3 LOF alarm indicates that the receiving 15310-CL-CTX, DS1-28/DS3-EC1-3, or

DS1-84/DS3-EC1-3 port has lost frame delineation in the incoming DS-3 data stream. The framing of

the transmitting equipment could be set to a format that differs from the receiving system. On DS-3 ports,

the alarm occurs only on when the provisionable line type format set to C bit or M13.

Clear the LOF (DS3) Alarm

Step 1 Change the line type of the non-ONS equipment attached to the reporting port to C bit by completing the

following steps:

a. Double-click the 15310-CL-CTX, or DS1-28/DS3-EC1-3, or DS1-84/DS3-EC1-3 port to display the

card view.

b. Click the Provisioning > DS3 > Line tabs.

c. Verify that the line type of the reporting port matches the line type of the signal source.

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