user manual

J-16

Cisco Transport Manager Release 6.0 User Guide

78-16845-01

Appendix J Troubleshooting

J.4.8 ONS 15800, ONS 15801, or ONS 15808 NE Generates Too Many Alarms

Occasionally, ONS 15800, ONS 15801, and ONS 15808 NEs generate so many alarms that the CTM

client cannot process all of them. Set the operational state of the NE to Under Maintenance while

debugging the cause of the alarms:

Step 1 In the CTM Domain Explorer window, right-click the ONS 15800, ONS 15801, or ONS 15808 that is

generating the large number of alarms and choose Mark Under Maintenance.

Step 2 Debug the ONS 15800, ONS 15801, or ONS 15808 NE to see which card is in error. Find the card that

is generating the alarms and mark it as Under Maintenance.

Step 3 While the card is under maintenance for debugging, set the ONS 15800, ONS 15801, or ONS 15808 NE

back to In Service.

J.4.9 Bandwidth-Intensive Operations Are Blocked

Bottlenecks in the DCN affect bandwidth-intensive operations, such as software download. Tune the

timeout and retry values to match DCN performance. Log into the NE and enter the following

commands:

• ip tftp min-timeout—Sets the minimum wait time, in seconds, before retrying the read/write

request.

• ip tftp max-timeout—Sets the maximum wait time, in seconds, before retrying the read/write

request.

• ip tftp backoff-delay—Sets the number of seconds to extend wait time if the read/write request

times out.

• ip tftp write-retries—Sets the maximum number of times to retry the TFTP read/write request

before declaring a failure.

J.4.10 NE Displays Incorrect Configuration Management Data

Step 1 In the Domain Explorer window, choose Administration > Service Monitor and verify that the NE

Service is running. If it is not running, start the NE Service.

Step 2 Test NE connectivity.

a. In the Domain Explorer tree, select the NE and choose Fault > Test NE Connectivity. The message

“<NE_name> (<IP_address>) is available” should be generated.

b. If the NE is unavailable, establish connectivity to the NE before retrieving configuration data.