Virtual CCAP – Redefining the Way Cable Networks are Built
Apr 30, 2014
In light of this week’s Virtual CCAP (vCCAP) annoucement, we wanted to get perspective from the team at Gainspeed. We are excited to share a guest blog post by Samir Parikh, Director of Product Management at Gainspeed Inc.
Gainspeed is extremely excited about our collaboration with Juniper Networks to deliver the industries first Virtual CCAP (vCCAP) architecture. We believe that the architecture will change the HFC network forever.
The vCCAP architecture migrates today’s headend from RF to digital and enables operators to deploy an all-IP, all-Ethernet system from the headend to the node. vCCAP provides the most scalable, cost-effective and flexible solution, and it can be tailored to each operator’s distinct needs and IP strategy. But what exactly is vCCAP?
IT’S CCAP - It’s an innovative architecture built on an existing operational paradigm. It delivers all the features and functions of CCAP.
IT’S A DISTRIBUTED ARCHITECTURE - vCCAP distributes both the DOCSIS MAC and DOCSIS PHY to the fiber node and introduces the industries first “Full Spectrum DOCSIS” capability.
Pushing DOCSIS and the physical layer to the node enables digital combining, replaces analog optics with 10 Gbps Ethernet and converts analog fiber nodes into digital, IP-enabled devices – Ethernet nodes – deep in the cable operator’s access network. Gainspeed’s distributed architecture enables “Full Spectrum DOCSIS” to every Ethernet node and every service group.
Deploying IP/Ethernet to the “neighborhood” confines RF between the Ethernet node and customer, extending fiber transmission distance, expanding fiber capacity and improving RF performance to the customer. As a result, the architecture reduces customer calls and truck rolls, and sets up the network for DOCSIS 3.1.
IT’S VIRTUALIZED - vCCAP leverages Software-Defined Networking (SDN) techniques to deconstruct the CCAP and break up the monolithic headend.
Control and management is centralized, the DOCSIS MAC and PHY is distributed and IP/MPLS and subscriber management functions are collapsed on the Juniper MX platform, which is already deployed for Carrier Ethernet services.
This approach eliminates the CMTS as a physical box and reorganizes the network at a functional level, delivering a number of significant benefits:
It eliminates the physical CMTS/CCAP and its associated cost, power and space
It does not impact the existing EQAM-based video infrastructure
It delivers Ethernet to the node on Day 1
It accelerates service deployment with zero-touch provisioning
It delivers a unified access solution with all of the service capabilities of the Juniper MX
Real-world deployment examples show that a vCCAP solution uses less than 10% of the power and 15% of the space of a traditional CCAP solution at close to 30% of the capital and operating costs. Operators can now accommodate the huge increase in network capacity lead by the transition to IP Video.