RDK, Broadband & The Last Mile
Access networks come in many flavors, and represent the “last mile” of a network’s infrastructure, connecting the core network out to homes and businesses – although they’re almost never a linear mile, and almost always require more than a mile’s worth of materials to build.
Of the access network types, there’s twisted copper pair, used in telephone networks, and the advanced technologies that built upon it, like Digital Subscriber Line (DSL) and its many manifestations (ADSL, VDSL2, G.Fast and XG-FAST). Then there are the fiber-fed networks, like “the PONs,” for Passive Optical Networks, like Ethernet PON (EPON) and Gigabit PON (GPON). In traditional hybrid-fiber coax networks, the access method used to move IP-based traffic is DOCSIS, for the Data Over Cable Service Interface Specification.
Broadband gateways and related gear built with RDK started out with DOCSIS as the initial broadband access technology. But as service providers expanded, both geographically and topologically, it made sense for devices built for RDK to also expand, in terms of supporting additional access networks. It started with EPON, in 2017. An EPON “agent” software component and an associated hardware abstraction layer, or “HAL,” was created to separate the common software of RDK/Broadband from the EPON code used in individual SoCs (System on a Chip).
In the fullness of time, the RDK stack is resourced and roadmapped to host a suite of access network agents, in a modular and open sourced way, that can be mixed and matched as needed by service provider: Maybe one footprint needs DOCSIS, and another needs DSL, or EPON, or GPON. Each agent contains the interface between the core RDK code, and the SoC code that supports the wide area network technology.
Notably, the core RDK stack remains unchanged regardless of the broadband access network it supports. Only the access network agent – be it for cable modems, Ethernet, DSL, etc – changes, as needed. This also means that the same device management, logging, telemetry and provisioning software is used in all implementations (including video devices running RDK.) That’s deliberate, so that service providers have one cloud management layer for all customer premises equipment / CPE, from all manufacturers.
Ultimately, it’s a good thing: Multiple types of access networks are the rule these days, not the exception. So as the RDK stack evolves, know that an important part of it will be about making sure the RDK can serve DOCSIS, DSL and PON-styled access infrastructure.
Alticast Inc. is excited to introduce its first contribution to the RDK community. The Alticast Xconf Log Server is a software server component that works
RDK Management is an open source consortium that manages the Reference Design Kit (RDK). RDK is an open source software platform for the connected home that standardizes core functions used in broadband devices, set-top boxes, and IoT. It enables operators to manage their devices; control their business models; and customize their apps, UIs and data analytics to improve the customer experience and drive business results. The RDK community is comprised of more than 500 companies including: CPE manufacturers, SoC vendors, software developers, system integrators, and service providers. For more information on the tools, training, and events provided by RDK Management, please visit: www.rdkcentral.com.
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The information collected by RDK Management falls into two categories: (1) information voluntarily supplied by users of the website and (2) tracking information recorded as users navigate through the website. Some of this information is personally identifiable information (i.e., information that identifies a particular person, such as e-mail address), but much of it is not.
To make use of some features on our website, like the RDK Wiki, users need to register and provide certain information as part of the registration process. We may ask, for example, for your name, e-mail address, street address, and zip code. We might also request information about your employer and the type of work that you do, in order to determine whether your employer is a member of the RDK program, to help us ensure that you are given access to the correct portions of the website, and to tailor our website content and e-mail (if you’ve registered to receive e-mail) to your interests to make it more useful to you. If you are a registered user, our systems will remember some of this information the next time you log in and use our website, but you can always review and change your information by logging in and editing your profile here.
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We consider the personally identifiable information contained in our business records to be confidential. We may sometimes disclose personally identifiable information about you to our affiliates or to others who work for us. We may also disclose personally identifiable information about you to service providers and vendors, and to others who provide products and services to us. For example, when you use certain functions on this website you may notice that the website actually collecting or processing the information may be other than an RDK Management website. We may be required by law or legal process to disclose certain personally identifiable information about you to lawyers and parties in connection with litigation and to law enforcement personnel. For example, we may be required by law to disclose personally identifiable information about you without your consent and without notice in order to comply with a valid legal process such as a subpoena, court order, or search warrant.
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