Contents

1   Overview

1.1   Description

Major type	193
Minor type	1586562654
MO Class	N/A
Specific Problem	Low Link Availability
Severity	SEVERITY_WARNING

1.2   Prerequisites

1.2.1   Documents

Before starting this procedure, make sure that you have read the following documents:

• "Fault Management User Guide" (24/1553-APR 901 0315/2 Uen)
• "Configuring SS7, System Components" (7/1543-CNA 403 0874/1 Uen)

1.2.2   Tools

Not applicable.

1.2.3   Conditions

Not applicable.

2   Procedure

Perform the following steps:

1. Get status for each link. In Signalling Manager (SM) expandSignaling System and select a link.
2. Click Actions , select M3-Link State and click Send . Find the result in Action Results .
3. If a link is Locally Inhibited , click Actions , select M3-Link Uninhibit and click Send .
4. Verify that the link is in service. Click Actions , select M3-Link Status and click Send .
5. Repeat Step 1 to Step 4 for all links and all Local SPCs .
6. Get status for all links. Click Actions , select M3 and M3-Status of all Links , click Send . Find the result in Action Results .
7. If links are Out of Service (S01) or Aligning (S03) , return them back into service. Click Actions , select Normal Link Activation and click Send . Perform this procedure for each link.
8. If this alarm occurs frequently, amend links to handle additional capacity.
9. If the number of links is successfully increased and the backlog is cleared, the alarm is also cleared.

   If the alarm does not cease, consult the next level of maintenance support. Further actions are outside the scope of this Operating Instruction.