

Network Training:
DOCSIS 4.0


This training focuses on the Engineering site within a cable network.
You have attended the DOCSIS 3.1 training or the DOCSIS 3.1 Refresher course or have through experience a very good understanding of DOCSIS 3.1 technology.
Don’t hesitate to contact us to align your optimal training path or for private training!
✓ All trainings are offered as virtual sessions or in-person, on-demand or public, at Excentis or on-site. Highly interactive and with ample Q&A time! Predefined or tailored to your needs. Default language in English, but we also offer trainings in Dutch, French and German.
Training Overview
DOCSIS 4.0 is the latest version of the DOCSIS set of specifications, promising download speeds of 10 Gbps while also reaching 6 Gbps upstream speeds. This to allow for multi-gigabit symmetric services such as video conferencing, remote work/learning, health care applications, IoT and virtual reality over HFC networks.
The goal of this course is to provide insight into how this new DOCSIS version allows to get those high symmetrical speeds and based on use cases found out what the possibilities are for your roadmap. Important changes in Quality of Service and security also will be discussed.
It is highly recommended that the attendee already has a good knowledge of DOCSIS 3.1 to fully benefit of attending this course. This by attending the DOCSIS 3.1 training first or by having a 3.1 Refresher training.
- Achieve an in-depth understanding of the technological evolution and its advantages along with the new concepts introduced in DOCSIS 4.0.
- An overview of the different options, characteristics and potential gains
- After attending this course the attendee will be capable of understanding the main DOCSIS 4.0 concepts, terminology, field deployment options, and communication from CM and CMTS perspective
Course Overview
PART 1: INTRODUCTION
- The road towards DOCSIS 4.0 ·
D4.0 overview and terminology: FDX, FDD, spectrum extensions, …
PART 2: FREQUENCY DIVISION DUPLEX OPERATION (FDD)
- Principles of FDD · Band plans · FDD-specific CM initialization ·PHY changes
PART 3: FULL DUPLEX OPERATION (FDX)
- Principles of FDX · Terminology (sub-bands, RBA, IG, TG, …) · Band plans · Interference mitigation challenges (ALI, ACI, CCI) · FDX-specific CM initialization · Interference group discovery (sounding CWT-REQ/RSP or OUDP, Downstream Protection DPR) · CM echo cancellation (ECT-REQ/RSP) · Dynamic Frequency Division Duplex Operation (DFDD) · PHY changes
PART 4: MAC LAYER
- Minimum grant bandwidth · new MMM · Bonding requirements
PART 5: FDX USE CASES
- FDX-L CM · Static FDX upstream
PART 6: HFC CONSIDERATIONS
- Challenges · FDX amplifiers
PART 7: SECURITY UPDATES
- Improved authentication framework BPI+ v2: Perfect Forward Secrecy (PFS), Mutual Message Authentication (MMA) · TOFU · CM SSH
PART 8: D4.0 DEPLOYMENT OPTIONS
- D4.0 modem types (FDD, FDX, FDX-L) · Network migration strategy options
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