Linear Adm Configurations; Figure 5-28 A Linear Or Upsr Connection Between Ons 15454 And Ons 15327 Nodes; Figure 5-29 Ons 15327 Ring Subtended From An Ons 15454 Ring - Cisco ONS 15327 User Documentation

Linear ADM Configurations

Figure 5-28 A linear or UPSR connection between ONS 15454 and ONS 15327 nodes

ONS 15327
Figure 5-29

Figure 5-29 ONS 15327 ring subtended from an ONS 15454 ring

ONS 15327
5.5 Linear ADM Configurations
You can configure ONS 15327s as a line of add/drop multiplexers (ADMs) by configuring one set of
OC-N cards as the working path and a second set as the protect path. Unlike rings, linear (point-to-point)
ADMs require that the OC-N cards at each node be in 1+1 protection to ensure that a break to the
working line is automatically routed to the protect line.
Figure 5-30
3/Node 1 to Slot 3/Node 2, and from Slot 2/Node 2 to Slot 2/Node 3. You create the protect path by
placing Slot 3 in 1+1 protection with Slot 1 at Nodes 1 and 2, and Slot 2 in 1+1 protection with Slot 4
at Nodes 2 and 3.
Cisco ONS 15327 User Documentation, R3.3
5-34
1+1 Linear (Point-to-Point) or UPSR
shows a ring of ONS 15327s subtended from a ring of ONS 15454s.
OC-12 or OC-48
UPSR
ONS 15327
shows three ONS 15327s in a linear ADM configuration. Working traffic flows from Slot
ONS 15454
ONS 15454
UPSR or BLSR
ONS 15454
ONS 15454
Chapter 5 SONET Topologies
ONS 15454
June 2002