3 12, 2012
  • EPON

EPON | A Brief Primer

2012-12-03T09:00:25-05:00December 3rd, 2012|

EPON Ethernet Passive Optical Network (EPON) is an actual Ethernet network over optical cable following the IEEE 802.3av standard for 1 Gbps (supporting up to 10 Gbps).  There are two (2) functional components of an EPON network, an Optical Line Terminator (OLT) and an Optical Network Unit (ONU).  The OLT is analogous to a CMTS in a DOCSIS network while the ONU is similar to the cable modem.  Data is transmitted to by the OLT to ONUs in the downstream by a broadcast method.  Encryption is used, so

26 11, 2012
  • openDNS

OpenDNS | Security at the Network Level

2012-11-26T13:16:13-05:00November 26th, 2012|

With a lot of adult content and other nefarious sites all over cyber space, it is paramount to protect your family from as appropriate. This can be done by filtering content coming into your computer. There are fundamentally two ways to successfully block adult and other malicious contents from gaining entry into your computer and your home. The first is by installing software designed to block such contents from your PC. The second way can be done at the network level. This later method does not involve the

18 10, 2012
  • DOCSIS T3 and T4 timeouts

DOCSIS 3.0 Cable Modem Registration, T3 & T4 Timeouts

2012-10-18T08:00:46-04:00October 18th, 2012|

Several of you have have contacted us because you missed us at our first two speaking engagements and didn't get a poster. The good news is we are still here till Friday and have one speaking engagement left. The poster is 23 x 35 inches.  That's approximately two feet by three feet.  It's a nice size to hang up in your headend or in your office.  Come see us our last EXPO presentations on Friday, October 19, 1:00–2:15 pm we will be happy to give you a poster after the presentation.  We

11 10, 2012
  • DOCSIS T3 and T4 timeouts

Cable Modem Registration, T3 & T4 Timeouts Poster

2012-10-11T09:50:04-04:00October 11th, 2012|

Would you like a copy of our Cable Modem Registration with T3 and T4 Timeouts Poster? The poster is 23 x 35 inches.  That's approximately two feet by three feet.  It's a nice size to hang up in your headend or in your office. We have a limited quantity of posters that we will be distributing at the SCTE EXPO.  Come see us at one of our three EXPO presentations and we will be happy to give you a poster after the presentation.  We will require a business

8 10, 2012
  • Web Hog

Capacity Planning | Build It & They Will Fill It

2012-10-08T10:01:54-04:00October 8th, 2012|

Capacity Planning - Helps Make Future Capital Expenditure Decisions Capacity Planning in the good old days, was an issue that impacted neighborhoods with web hogs in the them.  Peak usage hours were dreaded, teenagers downloading music were seen as a scourge, and web surfers were just plan old annoying.  What did these people think the internet was for? How things have changed.  Today people not only download music and surf the web but also watch movie content, make video conference calls, teach classes, and do just about anything else they can think of.  What

1 10, 2012

Cable Modem Registration | A Second Look

2021-08-17T10:17:11-04:00October 1st, 2012|

DOCSIS Cable Modems Registration Process Even the most interesting man in the world enjoy's the DOCSIS cable modem registration process, so it is worth a second look.  It is one of the most popular topics because it covers a wide range of how DOCSIS works, from physical layer to Internet protocol (IP) layer.  It is therefore worthy of an encore article with more depth and an update to include DOCSIS 3.0. During the cable modem registration process it is important to understand that three (3) different levels of

24 09, 2012
  • Dirty Fiber

DOCSIS Return | Dirty Fiber Optic Connectors

2012-09-24T03:14:16-04:00September 24th, 2012|

An often overlooked, but easy to resolve RF impairment are loose and/or dirty fiber optic connectors.  This issue often manifests itself as an increased noise floor when viewed on a spectrum analyzer.  The key to determining the difference between regular ingress and fiber connector noise is that the noise created by a loose or dirty fiber connector does not stop at the diplex filter roll-off frequency (typically 42 MHz in North America and 65 MHz Europe).  The image below shows a perfect example of this type of impairment:

19 09, 2012

See Us | SCTE EXPO Workshop DOCSIS and EPON

2012-09-19T03:30:12-04:00September 19th, 2012|

EPON, EPoC, DPoE, RFoG, DOCSIS®-Beyond the Alphabet Soup Operators’ services are migrating from traditional to IP delivery, which is driving a need for an evolution in the access network. Technology changes to the access network are a multi-year deployment cycle, so operators are investigating and trialing different technologies for next generation delivery. This session will explore the pros and cons, technical and financial trade-offs, and possible hybrid approaches of these various technologies. Moderator: Brady Volpe, CTO & Founder, The Volpe Firm, Inc. Advanced DOCSIS® vs. EPoC: A Residential Case

17 09, 2012

DOCSIS Codeword Errors | What you should know

2021-08-17T13:21:27-04:00September 17th, 2012|

Calculating...  Calculating...  DOCSIS Codeword Errors - You will likely see them DOCSIS correctable codeword errors and uncorrectable codeword errors are available as a metric in most cable operator monitoring tools and Operations Support Systems (OSS).  The monitoring tools and OSS generally provide data and dashboards for users to monitor overall network health and then identify a problem when it occurs.  Metrics like codeword errors are extracted directly from DOCSIS CMTSs using Simple Network Management Protocol (SNMP) or Internet Protocol Detail Records (IPDR), the later being preferred due to

13 09, 2012

See Us | SCTE EXPO 2012 Symposium

2012-09-13T02:00:24-04:00September 13th, 2012|

DIGITAL HOME SYMPOSIUM The Digital Home: Preparing for the Future Conference Event—registration required Space is limited! Tuesday, Oct. 16 10:00 am-5:00 pm The one-day pre-conference Digital Home Symposium will focus on the need to drive an optimized experience within the customer premises. The symposium will offer expert presentations and in-depth discussions on the latest technologies, standards and operational processes found in the new and constantly evolving digital home. The symposium is designed to help all levels of the cable system operator and vendor workforces to create and implement

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