9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. II-3-83
Point-to-Point Traffic Overlay on a Ring
Point-to point overlay operation is illustrated in Figure 3-50. The additional
capacity needed for overlay is required only on the overlaid links. Overlaid
traffic is not ring protected.
Figure 3-50. Example of a Ring Network with Point-to-Point Traffic Overlay
In this example the links between nodes C, D and E are carrying 32xE1
point-to-point non-protected traffic as well as 32xE1 ring-protected traffic.
Ring-Node Intersection
Using the INUe, two or three rings can intersect at one node.
Figure 3-51. Example of Intersecting Rings
Node B
Node A
Node C
Node E
Node F
Node G
32xE1 links:
64xE1 links:
32xE1 link
32xE1 ring-protected traffic
32xE1 pt-to-pt traffic
Node D
Point-to-point
E1 circuits
64xE1 link
Protected ring
Point-to-point
Ring A
Ring B
Common Node
32xE1 ring
64xE1 ring
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