Test Plan for Optical Grooming Switches - Light Reading

• Switch management system alarm cleared because fibre is fixed
• Trail is still routed via 2 hop route
• The management system should clearly display the following;
Current route and status.
Available resources.
Other comments:
None
Test Plan for Optical Grooming Switches
TCA012a: Confirm that the user can request automatic reoptimisation of circuit routings.
Purpose:
Following a restoration event circuits may be following non-optimal routes with long-term
detrimental impact on availability. At a time of the operator’s choosing it would therefore be
required to ask the system to automatically reoptimise circuit routings
Test method:
1. Following on from successful completion of TCA011
2. Ask the switch management system to reoptimise circuit routings
3. Record duration of loss of traffic
Expected result:
• STS-1 circuit should be rerouted back to original single hop route
• Measure duration of traffic loss on STS-1 circuit
• VC4-4c circuit should be unaffected
• The management system should clearly display the following;
Current route and status.
Available resources.
Other comments:
None
TCA012b: Confirm operation of 1+1 MSP
Purpose:
To confirm operation of (non-revertive) 1+1 MSP
Test method:
1. Start off with Config A with no trails configured
2. Set up unprotected STS-1 trail from PAR#8-LON#5 and connect to SONET testers
3. Set up unprotected STS-3c trail from PAR#10-LA#8 and connect to SONET testers
4. Look on management system and ensure STS-1 is being carried over PAR#6-LON#2
working route (if not do a manual switch to make sure it is)
5. Pull out card PAR#6
6. Measure loss of traffic on SONET testers
7. Record alarms on management system
Expected result:
• STS-1 should see less than 50 ms loss of traffic
• Switch management system should clearly show STS-1 is now being carried over
PAR#7-LON#1 trunk
• STS-3c should see no loss of traffic
• Within 10 seconds alarm appears on network management system to show card
failure of PAR#6
• The management system should clearly display the following;
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