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Technology Stocks : AUTOHOME, Inc -- Ignore unavailable to you. Want to Upgrade?

To: KailuaBoy who wrote (28630)	7/17/2001 10:44:41 PM
From: GraceZ	Read Replies (2) \| Respond to of 29970

Eh gee, KB....maybe you want to look at their white papers before you dismiss this technology. You expect the journalist to hype it up and miss the point, but I was sort of hoping you'd explore a little and see if they have anything here. It complements @Home, it's for businesses rather than consumers. If I were @Home I'd be jumping all over this. But broadband providers can now deliver dedicated 100 Mbps Ethernet or 1 Gbps Ethernet connections over existing HFC access networks by deploying Narad Ethernet switching elements with integrated, high-speed modems at critical junction points in the cable plant. Today’s tree-and-branch cable network topology can be enhanced with a symmetric data channel that provides bandwidth that is orders-of-magnitude higher than currently available. With built-in multi-service QoS capabilities, Virtual Fiber networks become fully capable of addressing the large, highly lucrative commercial market segment. Operators can deploy new services to Small/Medium Business (SMB), Small Office/Home Office (SoHo), and telecommuter markets initially, and in time leverage this infrastructure to cost-effectively deliver both current and advanced services to residential subscribers. While cable modem access to HFC networks has been highly successful so far for residential subscribers, in the future operators will need Virtual Fiber networks so they can develop more capacity and control to support bandwidth-hungry consumer applications such as peer-to-peer applications, video and music downloads, web hosting, and online gaming. naradnetworks.com Apparently it uses the unused portion of the spectrum above 860 mhz to provide basically an Ethernet connection that is symmetrical. Delivering Broadband Services over Ethernet Virtual Fiber networks complement the existing broadband access network infra-structure to allow operators to deliver greater, dedicated bandwidth to subscribers using switched Ethernet. Today’s HFC networks can evolve in a self-funded manner where capital expenses invested in enhancing the network are immediately followed by high-margin service revenues. Operators have spent a tremendous amount of time and money upgrading their plants to the HFC architecture of today, and Virtual Fiber networks complement these investments in a light touch way. The incremental nature of Narad’s solution puts the cable company in a success-driven capital expenditure mode, where incremental capital expenditures are made only when contracts for new customers and services have been secured. The Narad Subscriber Access Switch The Narad Subscriber Access Switch (SAS) on the cable network combines the operation of a conventional tap for existing services below 860 MHz and HFC Ethernet switching functions for the high-speed data channels. The trunk port carries NBAN symmetrical Ethernet traffic at 100 Mgps/1Gbps and the subscriber drop ports carry 100 Mbps. The Ethernet switching function supports priority queuing and weighted round robin queuing so that multi-service traffic can be treated appropri-ately and all subscribers can get a fair-delay treatment independent of their distance from the headend. The SAS supports a flow control scheme to avoid packet loss in periods of traffic congestion. The Narad Network Distribution Switch The Network Distribution Switch (NDS) provides the functions of a distribution amplifier for signals below 860 MHz as well as trunk-to-trunk switching function between the 1 Gbps trunk channels. It offers one coax network port and four ports for existing services and NBAN traffic. All ports can operate at either 1 Gbps or 100 Mbps to provide maximum flexibility. The Narad Optical Network Distribution Switch The Narad Optical Network Distribution Switch (ONDS) sits in front of a conven-tional optical node and combines the signals below 860 MHz from the headend with the Gigabit Ethernet signals from the headend router. It provides optical-to-electrical conversion of NBAN traffic and includes redundant optical transceivers. Switching functions, QoS, and flow control capabilities available at the NDS and the ONDS are similar to those at the SAS.