Failure recovery, Failure recovery -21 – Carrier Access Broadmore 1750 User Manual

Page 209

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Broadmore 1750 - Release 4.6

8-21

Maintenance and Troubleshooting

Failure Recovery

Failure Recovery

Failure recovery is the sequence of events necessary to bring the Broadmore 1750 back to
fully operational status after an unexpected service interruption. Throughout the recovery
process, specific problems should be corrected following the troubleshooting flowchart (see
Figure 8-2). The steps in failure recovery are:

1. Ensure sufficient stable electrical power is available to both the Broadmore 1750 and

the control station. Observe successful completion of POST.

2. Establish communications from the control station to the Broadmore 1750. Login and

view alarm LEDs. Correct all hardware problems before proceeding.

3. The Broadmore 1750 will automatically load the configuration that was saved for

power-up. PVC and originated SVC connections will be re-established to the ATM
backbone. Far-end originated SVCs must be re-established from the far end. Alternate
previous system configurations may be loaded if they were saved. This is
accomplished following the sequence below.

4. Monitor activity for individual slots and for the ATM connection.

5. Verify configuration of the NIM(s). Validate parameter settings with the ATM switch

if in doubt. Check the timing options and other parameters. Change as necessary to
eliminate any errors.

6. Verify configuration of the installed SAMs. Monitor individual slots.

7. Monitor activity for the ATM connection. Select individually defined circuits to edit

or connect and monitor the respective port.

Select System Management

Select Configuration Files

Select the saved file to restore

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