12-16
Cisco ONS 15454 Reference Manual, R8.5
78-18106-01
Chapter 12 SONET Topologies and Upgrades
12.3 Path Protection
Figure 12-14
Path Protection with a Fiber Break
Figure 12-15
shows a common path protection application. OC-3 optics provide remote switch
connectivity to a host Telcordia TR-303 switch. In the example, each remote switch requires eight DS-1s
to return to the host switch.
Figure 12-16 on page 12-18
and
Figure 12-17 on page 12-18
show the shelf
layout for each site.
Span 1
Span 2
Span 3
Span 4
Span 8
Span 7
Span 6
Span 5
Fiber
break
Source
Destination
32639
ONS 15454
Node ID 0
ONS 15454
Node ID 1
ONS 15454
Node ID 2
ONS 15454
Node ID 3
= Fiber 1
= Fiber 2
Содержание 15454-DS1-14= - 1.544Mbps Expansion Module
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Страница 49: ...xlix Cisco ONS 15454 Reference Manual R8 5 78 18106 01 About this Manual ...
Страница 51: ...li Cisco ONS 15454 Reference Manual R8 5 78 18106 01 About this Manual ...
Страница 168: ...2 34 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 2 Common Control Cards 2 7 6 Data Communications Channel ...
Страница 296: ...5 40 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 5 Ethernet Cards 5 14 4 SFP Description ...
Страница 320: ...7 16 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 7 Card Protection 7 5 External Switching Commands ...
Страница 358: ...10 6 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 10 Timing 10 3 2 SDH SSM Messages ...
Страница 584: ...15 56 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 15 Performance Monitoring 15 9 3 FC_MR 4 History Window ...
Страница 608: ...16 24 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Chapter 16 SNMP 16 10 7 Event RMON Group ...
Страница 796: ...C 122 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 Appendix C Network Element Defaults C 4 CTC Default Settings ...
Страница 826: ...Index IN 30 Cisco ONS 15454 Reference Manual R8 5 78 18106 01 ...