The objective of this feature is to make nodes free from the ring and the user is expected to know the nodes which have to be targeted to free up bandwidth.
Prerequisites
The originating node i.e., node A should have two ports which are free from cross connects to include these for Augmentation.
The two free ports which are augmented should be of the same rate as that of its corresponding ports.
From the point of view of the example considered here, if the user decides to delete or remove the nodes B and C from the ring, node A can be augmented and edited the circuit by making A->D as the work path.
Procedure
The circuit created in graphical view is as follows:
From the above image, assuming that the circuit is created between two nodes A and D, the ring can be split by deleting the trunk between the nodes C and D. Verify that the traffic switches to protect path.
Change the state of TL connected between node C and D to MAINTENANCE_FOR_EDIT state. Use the same port of node C to create new TL between node C and node A. Similarly create new TL between node D and node A. For more details refer section Right-click options supported on TL.
Go to Manage Circuits page, right click on the desired circuit and click on Edit Circuit. The step by step Edit circuit window is displayed with the selected circuit details. Go to Step4: Preview and select the Bulk Edit option as 'Matching Route Segments'.
Click . The graphical view is shown. Edit the new path between the fresh ports selected on A and the ports on node C and node D:
NOTE: On node A, port 1-3-7 is taken as East port and port 1-3-8 is taken as West port.
Verify that pass through cross-connects are created between ports 1-3-7 and 1-3-8 of node A. Now the work path will be A->B->C->A->D.
Verify that the graphical view of the circuit is displayed as shown in the figure above. The graphical view clearly represents that a loop on node A is formed i.e., graphical view shows two independent paths as work path and one protect path. The loop can be eliminated and a direct path to destination can be considered as work path. Refer.
The shortest path between the source and the destination i.e., from A to D would be the direct trunk between A to D. This path can be modified as the work path by eliminating the nodes B and C from the circuit.
If the work and protect path have to be swapped, traffic will be hit.
. The graphical view is shown. Edit the new path between the fresh ports selected on A and the ports on node C and node D:
