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4.3 SwitchPoint
SwitchPoint Network's Digital Switched Data Network™ (DSDN™) is a proven, commercially available third-generation (3G) broadband technology that enables the deployment of 100 Mega bits per second (Mbps) last-mile networks. DSDN leverages the advantages of proven indoor Ethernet Local Area Network (LAN) technology for use in large scale, outdoor residential and small business networks. Superior in performance to second-generation last-mile technologies such as cable modem and DSL, and lower in cost than other 3G technology alternatives such as fiber-to-the-home (FTTH), DSDN combines standard fiber and Category 6 (Cat6) cable with SwitchPoint's switches, network protocols and software to provide affordable broadband Internet access with upload and download speeds of 100 Mbps. Source/Reference
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working on 10 Gbps. Most proposed fiber deployments currently provide only 10 Mbps to the end user. •Scalability - Both FTTH and DSDN can scale and have robust architectures that are full duplex and switched. Ethernet is an extremely robust system for data transfer, whether through FTTH or DSDN. •Redundancy - DSDN intelligently re-routes network traffic around any accidental cable cuts or path disruptions resulting in uninterrupted service to the consumer. Most FTTH systems are home-run strands from either the NOC or a major hub to the home. It takes either intelligent components in the field (DSDN), or redundant home run fiber from a second location (very expensive) to achieve redundancy. •Ease of Implementation and Maintenance - DSDN is easier to implement and maintain and does not require additional customer premise equipment. FTTH implementations are more difficult and require special handling for each fiber drop to the home and the installation and maintenance of active optical switching equipment at the customer's premise. Cable cuts on a DSDN network are easy and inexpensive to locate and repair. A cut to fiber requires expensive equipment to locate the cut and extensive labor and equipment to repair.
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broadband access of at least 100 Mbps. This is at least 2,000 times faster than a 56 Kbps dial-up modem, 14 times faster than the maximum speed of DSL, and ten times faster than today's maximum speed of a cable modem. •Low Cost - Deployment costs for DSDN are comparable to less robust second-generation alternatives and significantly less expensive than comparable FTTH solutions. DSDN technology delivers the performance of FTTH without the high cost of installing fiber optic cable to the subscriber's premises. While FTTH deployments can cost in excess of $3,000 per home, DSDN can be deployed for under $1,000 per home passed. •Proven - The SwitchPoint DSDN solution has been in commercial operation more than two years and has provided broadband services to thousands of customers. SwitchPoint deployed DSDN to more than 10,000 homes and 2,000+ customers in two test markets in Utah and is now marketing DSDN to network builders and operators. •Upgradeable - DSDN is engineered for upgrades to 1 Gbps with a simple DSDN switch replacement; no new cable or construction is required. DSDN can cost effectively scale to deliver multi-gigabit bandwidth performance that matches FTTH, at a fraction of the cost. •Scalable - DSDN networks will scale to support any number of homes covering a market of any size and are compatible with Metropolitan Area Networks (MAN) for their backbone traffic. •Flexible - The SwitchPoint DSDN solution is extremely flexible and can be deployed as a stand-alone 100 Mbps data network or as an overlay to new or existing HFC cable networks or power grids. •Deterministic - Each user in the DSDN network is connected to an individual 100 Mbps port on the closest DSDN switch and do not share their ports with other users on the network. The fully switched nature of DSDN architecture maximizes available bandwidth and guarantees performance for users. Flat, non-switched architectures such as cable modem networks share bandwidth with all users on the network, causing effective throughput to diminish at peak loads. •Symmetrical - DSDN provides symmetrical, full-duplex bandwidth, which means that users simultaneously can send and receive up to 100 Mbps of data. In contrast, upload speeds of cable modem and DSL are significantly lower than their maximum download speeds preventing effective deployment of premium services that require symmetrical bandwidth such as videoconferencing, VPN and interactive gaming. •Standards-Based - DSDN is fully compatible with standard Ethernet and IP protocols; works with standard networking equipment and does not require specialized customer premise equipment, such as a modem. •Reliable - Neighboring DSDN nodes can be connected to each other through redundant Cat6 links. Even if a cable is cut, DSDN's multi-path routing capabilities easily work around the affected area to deliver continuous service. •Secure - The DSDN network is an all-switched network. Security is enhanced in an all-switched network because all users on the network do not receive all packets. In flat network architectures such as cable modem, fixed wireless and some FTTH broadband platforms, this level of security is not possible.
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