Cisco 15310-MA Instrukcja Naprawy Pobierz pdf (Strona 232)

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

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Chapter 2 Alarm Troubleshooting

Alarm Procedures

Step 3 If the port is not currently assigned, place the port out of service using the following steps:

a. In node view, double-click the DS-1 card (15310-CL-CTX, DS1-28/DS3-EC1-3, or

DS1-84/DS3-EC1-3) to display the card view.

b. Click the Maintenance > DS1 tabs.

c. In the Admin State column, click OOS,DSBLD.

d. Click Apply.

Step 4 If the port is assigned, verify that the correct port is in service by completing the following steps:

a. To confirm this physically, confirm that the green ACT LED is on.

b. To determine this virtually, double-click the card in CTC to display the card view and complete the

following substeps:

• Click the Provisioning > DS1> Line tabs.

• Verify that the Admin State column lists the port as IS.

• If the Admin State column lists the port as OOS,MT or OOS,DSBLD, click the column and

choose IS. Click Apply.

Note If ports managed into IS administrative state are not receiving signals, the LOS alarm is

either raised or remains, and the port service state transitions to OOS-AU,FLT.

Step 5 Use a test set to confirm that a valid signal exists on the line. Test the line as close to the receiving port

as possible. For specific procedures to use the test set equipment, consult the manufacturer.

Step 6 Ensure that the transmit and receive outputs from the DSx panel to your equipment are properly

connected. For more information about fiber connections and terminations, refer to the “Install

Hardware” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.

Step 7 If a valid signal is not present and the transmitting device is operational, replace the fiber cable

connecting the transmitting device to the port. To do this, refer to the “Install Hardware” chapter in the

Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide for procedures. For more

information about the cards, refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card

Software Feature and Configuration Guide.

Step 8 Repeat Steps 1 through 7 for any other port on the card that reports the LOS.

Step 9 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.

2.7.151 LOS (DS3)

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

SONET Logical Object: DS3

The LOS (DS3) for a DS-3 port on a 15310-CL-CTX, DS1-28/DS3-EC1-3, or DS1-84/DS3-EC1-3 card

occurs when the port is in service but no signal is being received. The cabling might not be correctly

connected to the port, or no signal exists on the line. Possible causes for no signal on the line include

upstream equipment failure or a fiber cut.

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