Distributed access architecture (DAA) enables the evolution of cable networks by decentralizing and virtualizing headend and network functions.
DAA is a mandatory step for all coax-based network evolution strategies. It leads to 10G broadband speeds with the existing coaxial assets and enables automation through virtualization and next-generation telemetry tools.
Distributed Access Architecture is a network topology that distributes the selected headend functions to the access network. DAA, in the Remote PHY context, separates the physical layer (PHY) from the media access control (MAC) layer, allowing for a more flexible and modular network design. Cable MSOs use Remote PHY devices (RPD) to move the digital signal processing, mainly QAM/OFDMA modulation and demodulation, from the headend to the access network, creating a more efficient network.
Remote PHY is a technology that moves the digital signal processing from the headend to the place where traditional optical nodes have been, or to even deeper in the network and closer to broadband subscribers. This creates a more efficient network, that can provide faster downstream speed and increased upstream capacity. Remote PHY reduces the number of equipment needed in the headend, which streamlines headends and allows scalable data processing capacity that can be easily upgraded and expanded as needed.
Do you know what deploying distributed access architecture requires?
Check out our video and learn the stages to success!
Interoperability ensures that R-PHY devices and CCAP cores are compatible with each other, allowing them to work together seamlessly. This is important because cable operators often use equipment from multiple vendors, and ensuring that all the components work together is critical for reliable and efficient operation of the network.
Interoperability also makes it easier to upgrade equipment in the network. Operators can replace R-PHY devices or CCAP cores from one vendor with those from another vendor without having to worry about compatibility issues, as long as the equipment is interoperable.
Interoperability can also facilitate innovation in the cable industry. With interoperable equipment, vendors can develop new R-PHY devices and CCAP cores that work together without requiring major changes to the network architecture. This allows operators to adopt new technologies more easily, which can lead to improved network performance and better customer experiences.
Interoperability between R-PHY devices and CCAP cores can simplify network management. When equipment from different vendors works together seamlessly, operators can manage the network more easily and efficiently, reducing the risk of errors and downtime.
Tested and approved by leading cable MSOs
| Feature | Cisco cBR-8 | CommScope E6000 | Casa C100G | Harmonic CableOS |
|---|---|---|---|---|
| DOCSIS 3.0 US and DS | ✔ | ✔ | ✔ | ✔ |
| DOCSIS 3.1 US and DS | ✔ | ✔ | ✔ | ✔ |
| Video, asynchronous | ✔ | ✔ | ✔ | ✔ |
| Video, synchronous | ✔ | ✔ | ✔ | ✔ |
| Core redundancy | ✔ | ✔ | ✔ | ✔ |
| NDR / NDF OOB channels | ✔ | ✔ | ✔ | ✔ |
| Wide NDF for FM (DVB-T…) | ✔ | ✔ | ✔ | ✔ |
| Viavi US sweep + monitoring | ✔ | In progress | ✔ | In progress |
| Pilot & Leakage tones | ✔ | ✔ | ✔ | ✔ |
Henrik Lind, CTO, Kabelplus
”Getting the Teleste RPD working with the Cisco cBR8 was easy in my opinion. The interop is great (thanks to CableLabs standards!) and both Teleste and Cisco are eager to help, if needed. The guys at Teleste deserve a lot of credit for their level of commitment. They clearly want the customer experience to be as good as possible. They are a pleasure to work with.
Thomas BützauSystem Engineer, Conscia Denmark
© 2024 Teleste Intercept. | All Rights Reserved.
