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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter11 SDH Topologies and Up grades
11.4.3 SNCP/MS-SPRing DRI Handoff Configurations
11.4.3 SNCP/MS-SPRing DRI Handoff Configurations
SNCPs and MS-SPRings can also be interconnected. In SNCP/MS-SPRing DRI handoff configurations,
primary and secondary nodes can be the circuit source o r destination, which is useful when non-DCC
optical interconnecting links are present. Figure11-23 shows an example of an SNCP to MS-SPRing
traditional DRI handoff.
Figure11-23 ONS 15454 SDH SNCP to MS-SPRing Traditional DRI Handoff
Path Selector
Secondary Path (protection)
Primary Path (working)
Bridge
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SNCP
MS-SPRing
Node 1
Node 5 Node 2
Node 10
Node 6 Node 7
Node 4 Node 3
Node 8
Node 9