The module sets up a QoS tunnel over the IP/Ethernet infrastructure over which it will multiplex the different services. The bandwidth of the QoS tunnel used by the module can be set by the operator enabling an optimal use of the network infrastructure, which is important in particular for last mile connections. The available capacity can then be allocated to the respective services multiplexed over the QoS tunnel, such as DVB-ASI or E1/T1 at a granularity of 0,5 Mbps. An adapted SMPTE2022/COP Forward Error Correction scheme is implemented to protect the link from errored or dropped packets.
- 3 SFP port for Optical or 10/100/1000 Ethernet
- Bandwidth granularity in steps of 0.5 Mbps
- Full multiservice support for video, audio and data services
- QoS Multicast support
- Advanced clock recovery
- Comprehensive protection options
- Performance management based on ITU-T G.826
The module can be used in any existing Nimbra One/300 product and co-exist with other available Nimbra trunk modules and may therefore be used for a seamless migration from PDH/SDH/ SONET to a packet based network infrastructure. Fitted in a Nimbra 300 series switch, the trunk module enables a flexible access solution with redundant uplinks that can access and aggregate for example DVB-ASI, AES/EBU, E1/T1, Ethernet and other services. Nimbra One may serve as an aggregator of multiple uplinks or as a higher capacity access solution.
The combination of service re-routing capability based on link performance and the ability to transport media services over both IP and optical links makes the Nimbra platform a unique solution for introduction of media services. As the broadcaster requirements for different media feeds may vary a lot depending on resolution, coding and usage, the operators ability to deploy an optimal mix of IP capacity and optical links will be key to differentiating the service offering based on QoS aspects.
The IP/Ethernet trunk functionality is also available as a feature upgrade to the Nimbra 360. With this feature upgrade, two of the fixed SFP ports obtains the IP/Ethernet trunk functionality. Note that Nimbra 360 hardware revision B is needed to support this upgrade.