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Cisco ONS 15454 Reference Manual, R7.0
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Chapter 12 SONET Topologies and Upgrades
12.3 12.3.1 BLSR DRI
Figure 12-15 ONS 15454 Integrated BLSR Dual-Ring Interconnect
Figure 12-16 shows an example of an integrated BLSR DRI on the Edit Circuits window.
Service Selector
Secondary Path (protection)
Primary Path (working)
115236
BLSR 1
Primary
Secondary
Secondary
Primary
BLSR 2
Node 8
Node 3
Node 1 Node 2
Node 6Node 7
Node 5
Node 4