Cablevision Teams With Narad to Deliver Fastest Two-Way Broadband Experience in the New York Metropolitan Area

Cablevision's Advanced Network Delivers 100 Megabit Dedicated

Access Services Over Existing Network Facilities

Jun 27, 2005, 01:00 ET from Cablevision Systems Corp.

    BETHPAGE, N.Y. and WESTFORD, Mass., June 27 /PRNewswire-FirstCall/ --
 Cablevision Systems Corp., (NYSE:   CVC) and Narad Networks, Inc., a provider of
 business class broadband access solutions using switched Ethernet over cable,
 today announced the completion of a successful trial and targeted deployment
 of a new 100 megabit-per-second (Mbps) data service using the Narad Broadband
 Access Network (NBAN) and Cablevision's existing network facilities that pass
 more than 4.4 million homes and hundreds of thousands of businesses in the New
 York metropolitan area.
     In the initial targeted deployment of this high-speed service in Oyster
 Bay, Long Island, Cablevision is providing a committed information rate of 50
 Mbps, out of the available 100 Mbps, symmetrical services.  The installation
 leverages and further extends the capabilities of Cablevision's existing
 state-of-the-art fiber and coaxial (HFC) network, and reflects the superior
 speed, features and functionality Cablevision is delivering today to both
 business and residential customers through its robust consumer offering and
 Lightpath suite of business services.
     "This initial deployment of a 100 Mbps data service is a powerful and
 unmistakable indication of the enormous capacity of our state-of-the-art
 network," said Wilt Hildenbrand, Cablevision's executive vice president of
 technology and engineering.  "Our operations people are extremely pleased with
 how fast and easy the process was, and our product and marketing people are
 excited to have the Narad technology available to tap more of the intrinsic
 capabilities of our network to serve very high capacity demands.  This
 demonstrates that our HFC networks, in addition to our pure fiber networks,
 have no inherent capacity limits for multiple levels of residential as well as
 commercial services, and can provide this very high level of service without
 the expense and time delay of network redesign or new construction."
     In the current deployed architecture, NBAN provides up to 100 Mbps of
 dedicated symmetric Ethernet on each of the four coaxial cable trunks in an
 HFC node, enabling Cablevision to economically provide enterprise-grade,
 unmatched bandwidth services while preserving all existing infrastructure and
 previously deployed video, voice and Internet services.
     The Cablevision installation uses Narad's coax-based outdoor Ethernet
 switches, which leverage the spectrum above 860 MHz to create new, QoS-managed
 bandwidth.  The use of a switching fabric assures data security and network
 monitoring needed for enterprise telecom services.  The Narad architecture
 evolution will allow 1 Gbps or 10 Gbps symmetric Ethernet to be carried, in
 the last mile, over any combination of fiber, coax, and wireless transmission
     "Cablevision has been a leader in advanced broadband services, and now
 they are jumping ahead in extending that capability and bandwidth offering
 deeper into their market," said John C. Petrillo, chairman and chief executive
 officer of Narad Networks.  "We're honored to be working with them in this
 enhanced broadband deployment, further validating Narad's out-of-band Ethernet
 overlay solution.  The time-to-market and performance of our technology allows
 MSOs to be proactive in their very high capacity, enterprise level, broadband
 services rollouts and take full advantage of the huge revenue opportunities in
 this space."
     About Cablevision
     Cablevision Systems Corporation is one of the nation's leading
 entertainment and telecommunications companies. Its cable television
 operations serve 3 million households in the New York metropolitan area. The
 company's advanced telecommunications offerings include its iO: Interactive
 Optimum digital television, Optimum Online high-speed Internet, Optimum Voice
 digital voice-over-cable, and its Lightpath integrated business communications
 services. Cablevision's Rainbow Media Holdings LLC operates several successful
 programming businesses, including AMC, IFC, WE and other national and regional
 networks. In addition to its telecommunications and programming businesses,
 Cablevision owns Madison Square Garden and its sports teams, the New York
 Knicks, Rangers and Liberty. The company also operates New York's famed Radio
 City Music Hall, and owns and operates Clearview Cinemas.
     About Narad Networks
     Narad Networks, Inc. provides cable operators with cost-effective
 solutions to create new, managed, symmetric capacity on existing cable
 networks. Narad enables the delivery of highly profitable broadband voice and
 data services over cable infrastructure while minimizing capital expenditures
 and accelerating free cash flow.  The company's solution leverages the
 previously unusable frequency spectrum to overlay secure, switched Ethernet
 onto existing HFC networks. The solution can be installed in phases, only
 adding equipment to those portions of the plant that lie directly between the
 node and the business customer.  Narad's solution enables cable operators to
 offer services such as Voice-over IP, T1/E1 voice, symmetric broadband
 Ethernet up to 100 Mbps, and virtual private networks.  The Narad solution
 adds 400 Mbps symmetric capacity to each HFC node.  Business customers include
 small-to-medium businesses (SMBs), mobile and WiFi operators, enterprise
 customers, schools and municipalities.
     Narad was recently awarded its key patent, "Network Architecture for
 Intelligent Network Elements."  This patent pertains to Narad's method of
 transmitting data over coaxial cable, which combines legacy signals below 860
 MHz with out-of-band high frequency data signals.  The technology enables the
 augment the cable network with switched Ethernet.
     Founded in July 2000 and based in Westford, Massachusetts, Narad Networks
 is a privately held company with venture funding from Polaris Venture
 Partners, Argo Global Capital, and other leading venture capital firms.  For
 more information, visit

SOURCE Cablevision Systems Corp.