A DCN must be properly planned to prevent potential communication problems.
A DCN, independent of the protocol to be used, must be planned properly before you configure DCN for a network to ensure normal communication between devices on the network.
DCN design generally needs to achieve the following objectives:
- An ECC subnet scale meets the security requirement and will not result in an ECC storm.
- A single ECC subnet needs to contain a primary GNE and a secondary GNE so that the subnet will not be unreachable to the NMS after a GNE fails.
- The number of NEs managed by a GNE is proper and does not impose pressure on the traffic at a single node.
- Alternative routes are available for communication between NEs so that the communication between the NEs is not interrupted in case of a fiber cut, especially when the fiber connects to an OLA site.
- ASON management meets the system requirement and does not conflict with ECC division.