Cisco 15310-MA Guide de dépannage télécharger pdf (Page 170)

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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

d. If the rate does not match the actual equipment, you must delete and recreate the selected PPM.

Select the PPM, click Delete, then click Create and choose the correct rate for the port rate.

Step 2 If the reporting port is an OC-3 or OC-12 port, verify connectivity by pinging the node that is reporting

the alarm by completing the procedure in the “1.9.8 Verify Microsoft Windows PC Connection to the

Node (Ping)” section on page 1-68.

Step 3 If the ping is successful, it demonstrates that an active TCP/IP connection exists. Restart CTC by

completing the following steps:

a. Exit from CTC.

b. Reopen the browser.

c. Log into CTC.

Step 4 Using optical test equipment, verify that proper receive levels are achieved. (For specific procedures to

use the test set equipment, consult the manufacturer.)

Step 5 Verify that the optical LAN cable is properly connected and attached to the correct port. 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.

Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15310-CL

or ONS 15310-MA.

Step 6 If the fiber cable is properly connected and attached to the port, verify that the cable connects the port

to another Ethernet device and is not misconnected to an OC-3 or OC-12 port. 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. For more information about

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

Feature and Configuration Guide.

Step 7 If you are unable to establish connectivity, replace the fiber cable with a new known-good cable. To do

this, refer to the “Install Hardware” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA

Procedure Guide for procedures.

Step 8 If you are unable to establish connectivity, perform standard network or LAN diagnostics. For example,

trace the IP route, verify cable continuity using site practice, and troubleshoot any routers between the

node and CTC.

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.

2.7.39 CARLOSS (ML100T)

Default Severity: Major (MJ), Service-Affecting (SA)

SONET Logical Objects: ML100T

A Carrier Loss alarm on an ML-100T-8 Ethernet card is the data equivalent of the “LOS (OCN)” alarm

on page 2-106. The Ethernet port has lost its link and is not receiving a valid signal.

A CARLOSS alarm occurs when the Ethernet port has been configured from the Cisco IOS command

line interface (CLI) as a no-shutdown port and one of the following problems also occurs:

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