Verify Oc-N Protection Switching (Working To Protect) - Alcatel-Lucent 1677 SONET Link Manual

3EM13850AD
Issue 01, September 2007
DLP-127

Verify OC-n Protection Switching (Working to Protect)

PURPOSE
This procedure is used to verify protection switching of OC-n facilities in the working-to-protect
direction.
PREREQUISITES
The test environment established in
GENERAL
For information on TL1 command syntax, refer to the 1677 SONET Link Commands and Messages
manual (PN 3EM13852AF).
Refer to the 1677 SONET Link Address and Location Guide (PN 3EM13854AD) for module
locations.
Use CKL-117 for this procedure.
STEP PROCEDURE
Enter
1
Do alarms exist that prevent testing?
2
Clear all alarms that prevent testing, then go to step 4. Refer to 1677 SONET Link
3
Maintenance and Trouble Clearing manual (PN 3EM13853AF).
Enter
4
Do conditions exist that prevent testing?
5
Clear all conditions that prevent testing, then go to step 7. Refer to 1677 SONET Link
6
Maintenance and Trouble Clearing manual (PN 3EM13853AF).
Verify OC-n Protection Switching (Working to Protect)
DLP-121
to verify there are no alarms present to prevent testing.
RTRV-ALM-ALL;
If yes, go to step 3.
If no, go to step 4.
to verify there are no conditions present to prevent testing.
RTRV-COND-ALL;
If yes, go to step 6.
If no, go to step 7.
must be intact.
DLP-127
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