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The article discusses the emergence of software-defined networking (SDN) in the information technology (IT) industry. According to a survey, 42% of IT professionals think SDN will boost network utilization and efficiency. However, some IT professionals say SDN could prove highly disruptive to the networking industry.

The article focuses on the creation of the Ethernet technology as environmental friendly which will demand low latencies. It mentions that Energy Efficient Ethernet (EEE) standard in switch latency will be affected by the decrease of latency in store. It notes that EEE standard suggests to use a low power mode when there are no frames to transmit.

The article focuses on the initiative made by Cisco Systems Inc. in unifying the Internet Protocol (IP) and storage networks for the improvement of the single fabric data center in the U.S. The fundamental change in single-fabric data center is the most important information technology (IT) change since the local area network (LAN) adopted. The unified data center has two long-term advantages such to lower costs and improve technological interface services.

The article discusses the complexity of wireless local area networks (WLAN). According to the article, the remote WLAN equation becomes more complex during the advent of enterprise-class 802.11n systems. It stresses that the advantage of 802.11n is to increase the throughput rates of each AP radio while enhancing the ability of information technology to identify rogue devices. The disadvantage is that it will be even easier for wireless users to saturate available WAN bandwidth.

The article evaluates several wireless local area networks (LANs) for use by small and midsize business enterprises in the U.S. in 2007. It includes a description of the key features and specifications of the wireless LANs, as well as their pros and cons for their small and midsize business users. The issues' implications for information and business technology are also cited.

The article focuses on the issue concerning the proposal of the San Francisco's Board of Supervisors for a citywide wireless fidelity (Wi-Fi) network in California. The proponents of the proposal denote that Wi-Fi is a relative way to bring broadband Internet access at little cost to the municipality. Meanwhile, various individuals claim that there are many uncertainties of such project which include a no clear return on investment for the Internet service providers. INSETS: WI-Fl HITS THE HARD STREETS OF L.A., by Richard Martin;IF YOU BUILD IT, WILL THEY COME?, by Richard Martin.

The article discusses the methods in implementing reliable Ethernet connectivity. The author emphasizes the need for system designers to pay attention to some product requirements when enabling Ethernet connectivity. He also outlines the benefits of the use of Ethernet like the chance for system designers to reuse the Ethernet interface to perform product-service-related tasks. He also recommends solutions that are compatible with the Ethernet.

Presents the power supply design for power-over-Ethernet (POE) applications. Significance of POE as a tool for entertainment and communication; Details of the IEEE 802.3af specification; Design and topological considerations for POE power supplies; POE power supply architecture.

Overtake Hospital Medical Center had no doubt it could benefit from a wireless LAN. The trick was finding a platform that met the center's requirements for security, reliability, ease of use, and seamless roaming. With the implementation now finished the CIO reflects on the experience and the ongoing benefits. [ABSTRACT FROM AUTHOR]

This article discusses the key features of the ZigBee home-area network (HAN) protocol. ZigBee offers various advantages for home wireless networking. It is suggested that the more remotely controlled devices installed in homes, the more remotes people accumulate. Of the few attempts to establish a standard for home networking that would control various home appliances, the X-10 protocol is one of the oldest. X-10 transmissions are synchronized to the zero-crossing point of the AC power line. ZigBee is specifically designed to replace the proliferation of individual remote controls. ZigBee was created to satisfy the market's need for a cost-effective, standards-based wireless network that supports low data rates, low power consumption, security, and reliability.

Focuses on the system level aspects considered in implementing multilayer switches. Accounts on the evolving functions of virtual local area networks; Adoption of modular approaches in the implementation; Employment of systemic approaches.

Considers a power-efficient wireless local area network (LAN) that allows a favorable trade-off between the power consumption and performance of the transceiver/modem. Quadrature-amplitude modulation (QAM) systems; Channel-fading model; Receive diversity modes; Link assessment.

Discusses key issues and developments relevant to the design of broadband communications equipment in telecommunication systems. Integration of the modem and gateway functions; Categories of gateway systems; Use of local area networks.

Discusses the progress of wireless local area network (WLAN) technology in the United States as of February 2002. Advantages of WLAN; Reasons for the problems in marketing WLAN technology; Information on the group of wireless specification introduced since 1997 which affects WLAN. INSETS: SPECIALIZED STUFF;A MAN, A VAN, A PLAN.

Focuses on the use of wireless local area networks (LAN) by establishments and institutions in the United States. Functions of the LAN; Implementation of the wireless LAN at the Medical Center at Ohio State University in Columbus; Benefits of using the LAN technology; Use of the wireless LAN at VF Corp. in Greensboro, North Carolina. INSET: Competing Vendors Rally Around Wireless LAN Standard.

Presents information on the wireless local-area-network (LAN) devices. Reaction to product-test call for the 802.11b LAN wireless networking product; Reproduction edition of AirConnect series by 3Com Corporation; Details on 4800 of Wireless Communications Incorporated.

Focuses on the application of distributed processing in local area networks (LAN). History of the technologies used for managing LAN; Application of traffic engineering (TE); Performance of overlay model for Internet service providers.

Discusses the benefits offered by storage area networks (SAN) in increasing storage bandwidth and scalability in managing networks. Why the installation of SAN simplifies a local area network (LAN) managers' life; Advantages of SAN; Comparison of SAN and Network Attached Storage (NAS); Parts of SAN.

Compares the performance of Gigabit Ethernet and asynchronous transfer mode (ATM) local area networks (LAN). Application of the technologies; Vendors that launched Gigabit Ethernet switches and network interfaces; Advantage of Gigabit Ethernet over ATM LAN.

Looks at factors that are driving the acceptance--and likely future dominance--of TCP/IP (Transmission Control Protocol/Internet Protocol) among business users. Its ability to support both local and wide area connections; Its open architecture; Its freely available specifications; Its edge over IPX/SPX; Use of TCP/IP at National Semiconductor Corp.

Part II. Focuses on local area networks (LAN). Mix of work-group and backbone technologies; Hardware and protocol changes; Topology and media for enterprise backbones; Technical and standardization issues; Token-ring switching technology; LAN emulation; Comments from industry executives.

Describes utilities that manage personal computer networks, such as bridges, routers and gateways. Gaining access to more than one local area network (LAN) at a time; Strategies. INSET: Making the right decision.;Raising the standard..

Where to look for problems when local area network performance falters in a personal computer network. Focuses on software problems in design, use or installation; Case studies. INSET: Tricks of the trade.;Troubleshooters..

Analyzes implementations of token-ring switching which provides performance similar to switched Ethernet by using the Olicom OC-8600 which is a second-generation token-ring switch. Cost of hardware alone for a conversion from token ring to Ethernet; Significant features of token-ring switches; Benefits of implementing a switched token-ring environment. INSET: Pros and cons of Ethernet and token ring.

Focuses on the increase in the viability of wireless local area networks (LANs). Provision of freedom of movement and connectivity needed; Wireless LAN products' use of infrared and radio frequency transmissions; Use of products support multiple cells to provide greater coverage; Developments in the access-to-point-to-access-point interoperability. INSET: Wireless LAN glossary..

Focuses on the efforts to increase the bandwidth of computer networks in the United States. Demand for local area network (LAN) switches; Use of asynchronous transfer mode; Ethernets; Use of virtual LANs to allocate bandwidth.

Reports on the increasing popularity of wireless local area networks (LANs) in the United States. Benefits from using wireless LANs; Government and business organizations that use wireless LANs; Description of several wireless LANs; Drawbacks of wireless LANs.

Focuses on the use of asynchronous transfer mode (ATM) to link local area networks (LANs), while highlighting the quality of service offered by these networks. Information on a convention being held in July 1997; Details on how LANs function; Ways in which ATMs is controlled.

Discusses the results of tests done on virtual local area network (VLAN) switches in various setups for the selection of the recipients of `Data Communications' magazine's May 1997 Tester's Choice Awards. Includes results of tests in setup by switch port number; Media access control address; Internet Protocol subnet. INSETS: Lab test vendor participants.;Test methodology..

Features four cabling options available for high-speed local area networking. Category 5; Enhanced category 5; Category 6 cabling; Multimode fiber; Signaling schemes; Maximum operating frequency; List price. INSET: Cable ready..

Discusses the status of virtual local area networks (VLANs). Big deal about Layer 3 intelligence; Basics of VLANs; Layer 3 VLAN switches offered by vendors; Types of Layer 3 VLAN switches. INSET: Alternative realities, by E.R..

Comments on a number of local area network emulation switches. Includes Cisco Systems Inc.'s Catalyst 5000/Lightstream 1010; 3Com Corp.'s Cellplex 7000; Bay Networks Inc.'s Centillion 100; Features and capabilities; Prices.

Evaluates a number of local area network emulation switches. Includes Cisco Systems Inc.'s Catalyst 5000/Lightstream 1010; 3Com Corp.'s Cellplex 7000; Bay Networks Inc.'s Centillion 100; Features and capabilities; Prices.

Lists various products for the local area networking (LAN) industry. Categories include asynchronous transfer mode (ATM) switches; Switching hubs/LAN workgroup switches; Hubs; Token Ring hubs, concentrators and repeaters. INSET: Stacking the deck..

Focuses on the need for concrete mechanism to integrate ATM (asynchronous transfer mode) into multiprotocol nets. ATM (MPOA) as a solution; Information on MPOA and its features; Promotion of two other schemes; Function of MPOA; LAN (local-area network) emulation contributing factor; Scalability limitations due to LAN emulation spec. INSETS: A lesson in LAN emulation.;Making sense of MPOA..

Focuses on wireless local area networks (LAN). Fundamentals of wireless LANs; Product developments; Applications; Product support; Categories of spread-spectrum equipment; Performance issues; Product classes.

Focuses on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 wireless local area network (LAN) standards. Multiple physical media; Common frame format; Multiple on-air data rates; Power limit. INSET: Birth of a standard, by J.E..

Part XI. Focuses on the iso-Ethernet technology, the integration of isochronous and Ethernet services. Addition of 6.144 Mbit/s of switched integrated services digital network (ISDN) circuits to conventional shared-media Ethernet; Local area network (LAN) plan for this technology; Iso-Ethernet modes; Use of this technology to make ISN video and voice on LAN desktop a reality. INSET: Why isochronous?, by R.B..

Discusses `Data Communications' magazine's evaluation of wireless local area network (LAN) devices. Participating vendors; Success stories; Costs; Infrared and spread-spectrum technology; Spectrum frequency issues; Power drain; Support service availability; Throughput and roaming tests. INSETS: Top performer.;Test methodology, by D.N. and K.T.;Token ring travails, by K.T..

Focuses on the virtual local area network (LAN) products being developed by several companies in the United States. Companies planning to develop virtual LAN products; Factors to consider in developing the products; Departmental Ethernet switches with virtual LAN. INSET: Why virtual LANs?..

Focuses on the problems created by a lack of monitoring tools by most local area network (LAN) switches in the United States. Difficulties in tracking switch activity; Implications for network managers; Comment by Yancy Lind, director of product planning at Alantec Corporation.

Focuses on various aspects of the Fiber Distributed Data Interface (FDDI) computer network standard. Potential applications; Enhancements to FDDI technology; FDDI costs; Comparison of different high-speed local area network technologies based on application breadth, network diameter, time to completion, and technology deployment. INSET: Whatever happened to FDDI II?..

Evaluates eight vendors' remote monitoring (RMON) Ethernet probes and management applications. Rating of ease of use and value-added features; Setup routines; Includes Armon Networking Inc.'s Onsite; LANservant manager from Axon Networks Inc.; Hewlett-Packard Co.'s Probeview/SNMP for Windows; IBM's RMONitor for OS/2 Agent; Network Application Technology Inc.'s Ethermeter/450.

Discusses the limitations of local area network (LAN) switches. Packet loss; Development of solutions by vendors; Implications to network management; Experience of Adnet Technologies Inc.; Network design strategy; Recommendations; Cost factors. INSET: Heading off trouble on the switched LANs..

Presents LAN modems and remote access software. Vendors; Product description; Price.

Presents products for LAN management and administration. Vendors; Product description; Price.

Presents terminal emulators and host access software used for LAN connectivity. Vendors; Product description; Price.

Presents gateways and controllers used for LAN connectivity. Vendors; Product description; Price.

Presents token ring hubs. Vendors; Product description; Price.

Focuses on the ability of asynchronous transfer mode (ATM) for local area network (LAN) emulation. LAN emulation standard developed by the ATM Forum; Goal of LAN emulation; Two main components of an emulated LAN; functions of the server on an emulated LAN; Activity of the emulated LAN. INSET: Classic concern.. (Classical Internet protocol)..