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Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Linear ADM Configurations
Figure 5-28
A linear or UPSR connection between ONS 15454 and ONS 15327 nodes
shows a ring of ONS 15327s subtended from a ring of ONS 15454s.
Figure 5-29 ONS 15327 ring subtended from an ONS 15454 ring
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.
shows three ONS 15327s in a linear ADM configuration. Working traffic flows from Slot
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.
1+1 Linear (Point-to-Point) or UPSR
ONS 15327
ONS 15454
50806
ONS 15454
ONS 15454
ONS 15454
ONS 15454
UPSR or BLSR
UPSR
ONS 15327
ONS 15327
OC-12 or OC-48
OC-12 or OC-48
50807
Содержание ONS 15327
Страница 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Страница 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Страница 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Страница 82: ...1 32 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 1 Hardware Installation Hardware Specifications ...
Страница 166: ...4 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 4 IP Networking ONS 15327 Routing Table ...
Страница 254: ...7 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 7 Card Provisioning Using Virtual Wires ...
Страница 408: ...13 26 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 13 Card Reference E10 100 4 Card ...
Страница 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...