Specifications

Planning and Engineering Guide, Release TR5.0.x/TN6.0.x 27
Two Node
Overlapping
Rings
This topology connects two rings using a single fiber between two optical cards. At
each interconnecting node there are three optical ports: two east and a shared west.
Each ring shares the bandwidth of the west port.
Figure 9 Two Node Overlapping Rings
The Traverse supports the following protection schemes in two node overlapping ring
interconnections:
• STS and VT 1+1 path protection
• High order and low order SNCP
Two Node
Interconnected
Rings
This topology uses four trunk ports in each node to connect two separate rings. The east
and west port of each ring must be on two separate cards.
Figure 10 Two Node Interconnected Rings
Node 2
Node 1
Node 2
Node 1