A customer has a Query about 2FMSP ring whether NG-SDH product support third path for protection or not.
e.g. 2FMSP ring both Optical Fibers cut so then Services will shift to microwave.
Steps of configuration is mention below,
Step=1 Configure the Add/drop NE-1 with Two SL64 board and One N1SL1 for SNCP Protection.
Step=2 Configure Add/drop NE-4 with Two SL64 board and One N1SL1 board for SNCP Protection
Step=3 Remaining Two sites is a pass through sites, so Two SL64 board for NE-2&3 .
Step=4 Create the Fiber b/w NE and configure 2FMSP ring using Ring Option in T2000.
Step=5 Configure the Service for NE-1 and NE-4 using Create using SNCP service.
For step =5 find attached diagram pics-1&2.
After then Test the Ring protection,
1) First break the working fiber
2) Break the protection fiber
3) Then observed the alarms on PQ1 board and observe the protection switching.
4) Restore the Fiber again and observe the behavior, protection switching is cleared successfully.
To solve Custommers Queryies i have perform the Test in Lab.
Four NE (Two-OSN-7500 and Two- OSN-3500 ) 2FMSP ring configured
Attached Diagram (case-1) for referemnce.
Then confifure the third path protection using SNCP Protection .
Then we have recommended to customers, and customers successfully implement the solution.