Test Plan for Optical Grooming Switches - Light Reading

Test Plan for Optical Grooming Switches
Purpose:
To confirm the correct operation of the protection mechanism of the SNCP protected trail.
Test method:
1. Following on from successful completion of TCA020
2. Break fibre PAR#5-NY#’3
Expected result:
• STS-1 circuit switched over protection trail within 50ms.
• Switch management system shows location of fibre break and that switch has
occurred.
• STS-3c circuit unaffected
.
Any other comments:
None
TCA022: Fix broken fibre on 1+1 SNCP
Purpose:
Confirm 1+1 SNCP protection is non-revertive
Test method:
1. Following on from successful completion of TCA021
2. Fix fibre PAR#5-NY#3
Expected result:
• Alarms removed on main route.
• Traffic still carried over protection route.
• No loss of traffic on either STS-1 or STS-3c circuit
• Available resources should show the main route is not available for extra traffic,
which would prevent restoration of currently protected traffic.
Any other comments:
None
TCA23: Force restoration of 1+1 SNCP
Purpose:
Confirm the ability of the switch management system to force a restoration back to the
original working trunk
Test method:
1. Following on from successful completion of TCA022
2. Using switch system management, force restoration back on to main route and measure
time to restoration.
Expected result:
• A warning will appear on the management system, to state that this operation will be
traffic affecting.
• STS-1 circuit returned to its original route – via trunk PAR#5-NY#3
• STS-1 circuit sees 50 ms traffic hit
• STS-3c circuit unaffected
• Management system clearly and accurately displays:
Current route.
Status and alarms for main route.
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