Get Your Tech On
DOCSIS 3.1 Upstream
Happy Friday Everyone. Today is July 12th and this is episode 50 of Get Your Tech On, our show on All Things DOCSIS. I’m Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is, John Downey. John is also CMTS Technical Leader at Cisco Systems, welcome John.
Todays show overview:
* FDX / CBR-8 – Is it dead at CISCO?
* Node plus Zero
* DOCSIS 3.1 Upstream – General discussion
* Low Latency / ESports
* OFDMA
* Remote-PHY
* ATDMA
* 85Mhz systems
* Bonding groups
* Profiles in the upstream
* Different and challenging impairments in the upstream
* Pilots – Ranging – QPSK
* 42Mhz filter and a 3.1 DOCSIS modem
* Modem doesn’t work properly – use PNM to find it
* Sweepless sweep with PNM – passive sweep with DOCSIS
* Switch out DOCSIS 3.0 for 3.1 modem
* 6 dB less
* Reporting is different
* Power level is the same
* DOCSIS 4.0 spec
In The News:
* CableLabs Summer Conference to be moved.
* CISCO in the news
* SCTE EXPO 2019
John thank you for your time today. This was a great episode. Our next Episode 51 is scheduled in September 20th on Connectors best practices.
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Slides
Cable Modem Registration Explained
Upstream MER Explained