ZXA10 S300 (V1.1) Integrated Access Service Dispatching Unit Technical Manual
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Dual Node Interconnection (DNI): Refers to the node mutual
protection provided by the two crossover protection rings (logic
subnets) for the inter-ring (logic subnet) service at the crossover
node. Recommendation G.842 specifies the DNI methods of the
SNCP + SNCP, MS-SPRing + MS-SPRing and MS-SPRing + SNCP.
In the V1.1 version, only the DNI of SNCP + SNCP is supported.
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