ABB PDD205A1121 3BHE025335R1121

Description

ABB PDD205A1121 3BHE025335R1121

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IP over WDM/OTN networks enable flexible scheduling and protection of large particle services based on wavelength or ODUk switching cores. In the construction of metropolitan area networks, IP over WDM/OTN is suitable for application in the core layer, providing the networking, scheduling, and protection of large granular services for core network elements. PDD205A1121 3BHE025335R1121 is used for carrying mobile backhaul services in large metropolitan area networks. PTN+WDM/OTN networking mode can be adopted. The access/aggregation layer adopts PTN networking and dispatches services upwards to the PTN core landing layer in the wireless network controller (RNC) room through IP over WDM/OTN. Collaborating with PTN greatly simplifies the network construction between core layer nodes and aggregation layer backbone nodes. On the one hand, it is convenient to achieve flexible business scheduling when adjusting business ownership, and on the other hand, the core layer nodes are only connected to the RNC data center, avoiding the situation where all node equipment on the loop must be upgraded simultaneously due to the upgrade of a certain node’s business capacity in a pure PTN network, which saves network investment. WDM/OTN provides flexible scheduling and networking for PTN services, as shown in Figure 5.

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