If you have not had a chance to catch the June issue of Communications Technology, check out the article penned by John Downey of Cisco Systems and me on "the critical upstream areas that one should be aware of when getting ready to deploy or already deploying DOCSIS 3.0."
The shortened version of this DOCSIS article can be found on CT's website HERE. The full version should be made available on this blog soon.
The first part of this article (in CT's March 2009 issue) discussed downstream potential issues, while this one focuses on the potential issues associated with upstream deployments. In particular, this article covers the critical upstream areas that one should be aware of when getting ready to deploy or already deploying DOCSIS 3.0.
The business objective for many operators today is to provide faster speeds to compete with Verizon's FiOS. These speeds are for downstream and upstream. DOCSIS 2.0 can provide approximately 37 Mbps on the downstream and 27 Mbps on the upstream, aggregate speed. Some per-cable modem speeds are approaching these peak rates and exceeding them. The only way to offer higher rates than what DOCSIS 2.0 can offer is to upgrade to DOCSIS 3.0. Instead of reducing node sizes, which can exceed $10,000 per node split, the business case can quickly be made to migrate to DOCSIS 3.0.