Procedure 5-42: Clear "inc. VCG LOA" condition
Before you begin
Prior to performing this procedure:
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Refer to Before you begin and Required equipment in this chapter.
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Refer to Electrostatic discharge in Chapter 1, Safety.
Steps
Complete the following steps to clear an inc. VCG LOA condition.
1 |
From the WaveStar® CIT System View, click the Alarm List button and locate the inc. VCG LOA condition in the resulting alarm list. | ||||||
2 |
Refer to the Probable Cause column in the alarm list, determine the affected circuit pack, and note the corresponding VCG AID. | ||||||
3 |
Are there also incoming SONET/SDH signal alarms/conditions associated with that AID?
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4 |
From the System View, click the Alarm List button and click Refresh. | ||||||
5 |
Is the inc. VCG LOA condition still present?
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6 |
Important! A tributary may be disabled at the far end SONET/SDH network element. Using office records, determine the far end network element in the SONET/SDH network. From the System View menu at the far end SONET/SDH network element, select View → Equipment to access the required VCG tributary and verify that the VCG Membership is Enabled in the Input Direction and Output Direction. If required, select Configure → Equipment to access the required VCG tributary and Enable VCG Membership in the Input Direction and/or Output Direction. | ||||||
7 |
From the System View, click the Alarm List button and click Refresh. | ||||||
8 |
Is the inc. VCG LOA condition still present?
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9 |
Important! Because the individual tributaries of a VCG can take different paths through the SONET/SDH network, they may experience different delays through the network. VCGs use differential delay buffers to accommodate for differential delay. Follow local procedures to reengineer the circuit path of the affected tributary through the SONET/SDH network to reduce differential delay. Reference: Alcatel-Lucent 1850 Transport Service Switch (TSS-5) Product Information and Planning Guide Alcatel-Lucent 1850 Transport Service Switch (TSS-5) User Provisioning Guide | ||||||
10 |
From the System View, click the Alarm List button and click Refresh. If the inc. VCG LOA alarm is still present, contact your next level of support. End of steps |