Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual page 430

12.4.1 BLSR DRI
Figure 12-20
Primary
Secondary
Figure 12-21
Cisco ONS 15454 Reference Manual, R8.5
12-22
ONS 15454 Integrated BLSR Dual-Ring Interconnect
Node 1
Node 8
Node 7
Service Selector
Primary Path (working)
Secondary Path (protection)
shows an example of an integrated BLSR DRI on the Edit Circuits window.
Chapter 12
Node 2
BLSR 1
Node 4
Node 5
BLSR 2
Node 6
SONET Topologies and Upgrades
Secondary
Node 3
Primary
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