OTN Metro Optical Transport Network Solution

By integrating the high-density, high-performance DWDM transmission capabilities of the box-type OTN 8200 with the flexible service access capabilities of the access-oriented OTN 1800, this solution delivers an efficient, low-latency, scalable, and reliable metro-level optical transport network. It addresses operators’ and enterprises’demands for data explosion, low latency, and high-capacity transmission. The architecture supports full optical coverage from the access layer to the core layer, ensuring efficient network operations through flexible service scheduling and management.

Key Features and Functions

1.High-Density Transmission

• 200G/400G DWDM technology enables large-granularity optical transmission, supporting over 38.4 Tbit/s per fiber, ideal for metro-area high-traffic and high-density requirements.

• Deployed at the core and aggregation layers, OTN 8200 ensures high-capacity optical transmission for inter-city or inter-core-data-center connectivity.

2.Multi-Service Access and Switching

• The access-type OTN 1800 supports flexible service granularity via ODU/VC/PKT/OSU technologies, accommodating arbitrary rates from 2M to 10Gbps.

• Enables seamless integration of traditional TDM and modern Ethernet services.

3.Low Latency and Reliability

• OTN 8200 features high reliability and integrated optical-electrical architecture, minimizing latency while ensuring high-speed transmission for mission-critical services.

• OTN 1800’s centralized scheduling and switching capabilities enhance network stability and accuracy.

4.Open Architecture and Manageability

• OTN 8200 provides standard NETCONF/YANG interfaces for third-party NMS integration, enabling remote configuration and monitoring.

• OTN 1800 supports unified management for streamlined network configuration and monitoring.

Network Architecture Design

1.Access Layer

• OTN 1800 connects access points (e.g., base stations, enterprise networks) and aggregates traffic to the backbone.

• Supports multi-rate access switching for diverse traffic types (video, voice, data).

2.Aggregation and Core Layers

• OTN 8200 enables high-speed metro-area transmission, linking access-layer devices or data centers with low latency and high density.

• The core layer leverages OTN 8200’s ultra-high bandwidth for stable inter-data-center connectivity under heavy loads.

3.Service Scheduling and Traffic Management

• OTN 1800 dynamically allocates bandwidth based on service needs, optimizing transmission paths and reducing congestion.

• OTN 8200 guarantees stable bandwidth and service quality even during peak traffic.

Typical Application Scenarios

1.Data Center Interconnect (DCI)

• OTN 8200 interconnects data centers, enabling high-speed, large-scale data flows to meet modern DCI demands for capacity and low latency.

2.Metro Access and Aggregation

• OTN 1800 aggregates multi-service traffic (mobile base stations, enterprise networks, broadband) to the backbone.

• OTN 8200 delivers high-speed metro-core transmission via DWDM.

3.5G and Enterprise Network Access

• OTN 1800 handles massive low-latency 5G traffic, while OTN 8200 ensures efficient transport between core and metro networks.

Network topology