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OSN1800 By applying OTN technology, the flexibility of service E2E scheduling is guaranteed, and the shared bandwidth of different services can be realized. With rich OTN overheads and simple network management operations, network maintenance and fault location can be easily accomplished.
- OTN Crossing
Signal streams of any granularity can be aggregated into ODUk pipelines, and multiple services from multiple sites can be mixed in the same ODUk, realizing flexible service scheduling and high bandwidth utilization.
- GE E2E transmission based on ODU0
Through end-to-end service scheduling, intermediate sites directly configure cross-connections on the line side, eliminating the need for back-to-back physical fiber connections, thus saving a lot of intermediate site fiber connection time and allowing for rapid service release. It also reduces the potential points of failure and maintenance workload.
- E2E Management of Services Based on OTN Overheads
E2E service monitoring and management can be realized with the rich OTN overhead compliant with ITU-T G.709 protocol and simple network management operation.
With OTN overhead, the OTN network realizes transparent transmission of customer services and provides FEC (forward error correction) capability. During network operation, with network management, E2E service monitoring and management can be easily performed, and in case of failure, fault localization can be easily accomplished.
- Flexible bandwidth application based on ODUflex
Supporting ODUflex (Flexible Rate Optical Digital Unit) technology, it can be well adapted to various service types such as video, storage, data, etc., and is compatible with the transmission requirements of future IP services.
- Channel monitoring across different carriers
When networks of different carriers are interconnected, TCM (Tandem Connection Monitoring), which is part of OTN overhead, can be used to monitor the quality of channels across different carrier networks. In the event of a failure, the TCM overhead can be used to facilitate fault delimitation.
OSN1800V OTN Crossover
With OTN crossover, signal streams of any granularity can be aggregated into the ODUk pipeline, and multiple services from multiple sites can be mixed in the 同一个ODUk中，实现业务灵活调度及高带宽利用率。
Supports centralized crossover at the ODU0/ODU1/ODUflex/ODU2/ODU2e level, and inter-board crossover at the ODU2/ODU2e level. OTN crossover applications such as shown in Figure 1. Customer-side services at any rate reach the IP/MPLS backbone layer through flexible crossover and bandwidth sharing over the OTN network.
- Service 1, Service 2, and Service 3 are accessed through Station A. They are encapsulated separately and share bandwidth. They are encapsulated separately and share bandwidth.
- At station A, Service 1 and Service 2 are mixed and encapsulated into an ODU1 pipe but do not take up all of the ODU1 bandwidth, and Service 3 is encapsulated into an ODU0 pipe.
- The ODU1 and ODU0 pipes are processed as OTU optical wavelength signals, respectively, and then passed to station B. The ODU1 and ODU0 pipes are processed as OTU optical wavelength signals.
- The OTU signal arrives at the B station and is passed to its destination after being flexibly up and down and assembled into an ODUk pipe.
- At station B, Service 3 is terminated and Service 5 can use the ODU0 pipeline formerly occupied by Service 3.
- Service 4 is merged into the ODU1 pipeline not occupied by Service 1 and Service 2, utilizing the free bandwidth.
- The ODU0 and ODU1 pipes carrying the reassembled services are processed as OTU optical wavelength signals, respectively, and passed to the C station.
OSN1800V End-to-End Management of Services for OTN Overhead
With the rich OTN overhead compliant with ITU-T G.709 protocol, together with simple network management operations, end-to-end service monitoring and management is realized.
With OTN overhead, OTN network realizes transparent transmission of customer services and provides FEC (forward error correction) capability. During network operation, with network management, end-to-end service monitoring and management can be easily carried out, and fault localization can be easily accomplished in case of failure. The end-to-end management of services based on OTN overhead is shown in Figure 1.
