• September 03, 2003 03 Sep'03

    Certification guide

    Here's a look at the most common and timely training programs, along with links to follow for more in-depth information.

  • August 28, 2003 28 Aug'03

    Virtela's unbundled approach plays in WAN space

    The wide area network outsourcing market has been a tough one to crack, but one company has a strategy that may prove successful.

  • August 26, 2003 26 Aug'03

    Click for details on the Network Performance Pioneer Award

    Learn how to nominate your team for this award.

  • August 26, 2003 26 Aug'03

    Implementing CIFS: Protocol negotiation

    Learn about protocol negotiation in Microsoft's The large installed base of CIFS (Common Internet Filesharing System) protocol suite.

  • August 26, 2003 26 Aug'03

    Click here for details on the Network Trailblazer Award

    Check out the award details.

  • August 25, 2003 25 Aug'03

    Lasers hit the spot when wires can't cut it

    Laser technology is gaining momentum as an effective way to provide high-bandwidth wireless networking capability over short distances.

  • August 21, 2003 21 Aug'03

    Network management security

    Take a look at how change management can improve network security, and how wireless devices will change the way you'll secure network devices.

  • August 21, 2003 21 Aug'03

    Check Point firewall serves midsized businesses

    Check Point has released a firewall for misdized businesses that offers enterprise-caliber features such as an Internet gateway and VPN. According to the company, it's well suited for smaller firms that need enhanced functionality but lack the ...

  • August 20, 2003 20 Aug'03

    CCNA Basics: Network media types

    This chapter describes the common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless.

  • August 20, 2003 20 Aug'03

    CCNA Practical Studies: Router interface configuration methodology

    This chapter excerpt will walk you through the methodology for configuring router interfaces, including Frame Relay and other types of serial interfaces, Ethernet, and Token Ring.

  • August 20, 2003 20 Aug'03

    Balancing Web filtering and employee privacy

    Employers are increasingly concerned with how their employees use the Internet; legal liability and lost productivity can result from goofing off, viewing offensive material or downloading huge files that clog up the network. These concerns have ...

  • August 19, 2003 19 Aug'03

    Cisco pushes desktop Gigabit Ethernet

    Cisco Systems has released a pair of Gigabit Ethernet switches in an effort to bring the high-speed transmission technology to desktop users. The Catalyst 3750G-12S is geared toward enterprise, while the 2970G-24TS targets small and medium-sized ...

  • August 13, 2003 13 Aug'03

    As NetWare falters, Novell pins hopes on Linux

    Novell's NetWare operating system isn't the dominant force it once was, but industry observers believe Novell's Ximian buy could spark a comeback. One analyst says that combining Linux and NetWare in the enterprise could create a powerful ...

  • August 11, 2003 11 Aug'03

    The network architect: One part designer, one part psychiatrist

    Network design guru Nick Lippis is president of Hingham, Mass.-based Lippis Enterprises Inc., which produces the Lippis Report and will host the upcoming Enterprise Networks 2004 conference. ...

  • August 04, 2003 04 Aug'03

    Proxim enables 'last mile' WAN connectivity

    Proxim has introduced a new line of "last mile" wireless WAN products for service providers and enterprises that need building-to-building connectivity without fiber optic cabling.

  • July 30, 2003 30 Jul'03

    HP pushes 'access control on steroids'

    As part of its new Adaptive Network Architecture Service, Hewlett-Packard is offering a network access control tool that enables admins to grant external parties limited access to network resources without punching holes in the corporate firewall.

  • July 29, 2003 29 Jul'03

    Interconnecting Cisco Network Devices: Internetworking concepts overview

    This chapter excerpt reviews the basic internetworking concepts including network components, planning hierarchical networks, and an in-depth discussion of the OSI model.

  • July 28, 2003 28 Jul'03

    Zultys targets SMB market with VoIP gateway

    Zultys is aiming its new VoIP gateway at SMBs interested in enterprise features, like IM support and automatic call distribution, but not the cost and hassle associated with an enterprise product. Experts say Zultys' MX250 addresses a number of SMB ...

  • July 24, 2003 24 Jul'03

    The content switch: The body of a switch, the soul of a server

    How did we move from the world of the Internet data center to the enterprise computer room? We talked with some experts.

  • July 22, 2003 22 Jul'03

    NetScaler updates take pressure off servers

    NetScaler has enhanced its 9000 line of server optimization products to improve application performance over distributed networks. An analyst says NetScaler is helping companies deliver ERP and CRM applications over the Internet without huge, costly...

  • July 22, 2003 22 Jul'03

    Expert: Businesses must look before leaping into Wi-Fi

    A number of well-known companies, like McDonald's and Starbucks, are providing wireless access to customers, but one research firm says they could be trading core revenue for empty wireless buzz.

  • July 21, 2003 21 Jul'03

    BMC update previews a future with fewer agents

    BMC has added Web transactions and Internet latency tracking to its Patrol Express network monitoring product. One analyst says the agentless product represents the future of network monitoring because agent-based products are becoming too costly ...

  • July 17, 2003 17 Jul'03

    What is a router?

    Routers are the mainstay of enterprise networking, but how well do you understand them? Read our rundown of exactly what a router is and does.

  • July 17, 2003 17 Jul'03

    Hush hush! Without due diligence, voices carry

    No one thinks much about the security of phone calls -- until they decide to put their voice systems on IP networks, says Ray Keneipp, vice president with the Midvale, Utah, research firm, Burton Group. Even though phone conversations are hardly ...

  • July 16, 2003 16 Jul'03

    Recommended reading list

    Our experts recommend that you take these books along with you on vacation or during a coffee break at work.

  • July 15, 2003 15 Jul'03

    Firewalls charred by network complexity

    Experts discussing the future of firewalls at the recent Burton Group Catalyst Conference 2003 say that the complexity in networks and applications desperately needs to be addressed.

  • July 11, 2003 11 Jul'03

    Domain name system creator laments legal limitations

    In an interview, domain name system (DNS) inventor Paul Mockapetris talks about his original vision for this staple of Internet Protocol addressing.

  • July 11, 2003 11 Jul'03

    Domain name system creator laments legal limitations

    SAN FRANCISCO -- The domain name system (DNS) is a remarkably resilient technology. Even after 20 years, this basic method by which Internet domains are located and translated into Internet Protocol (IP) addresses remains relevant. In an ...

  • July 10, 2003 10 Jul'03

    Are we ready for the 'all-in-one happy box'?

    Multipurpose devices for network infrastructure have features such as routing, load balancing and caching that should catch the fancy of networking professionals. So why exactly are some people skeptical of the "all-in-one happy box"?

  • July 10, 2003 10 Jul'03

    Wireless LANs move from toys to tools

    Wireless local area networks are no longer a curiosity in the enterprise. An analyst at the Burton Group's Catalyst conference said the technology has advanced to the point where wireless LANs have surmounted even their greatest shortcoming: ...

  • July 09, 2003 09 Jul'03

    Forrester: Adding channels will clear the way for 802.11a

    A proposal by the Federal Communications Commission to add channels to the 802.11a wireless communication standard has the potential to resolve some issues that have impeded the adoption of wireless technology, says an analyst from Forrester ...

  • July 08, 2003 08 Jul'03

    Catalyst show to highlight 'virtual enterprise'

    The virtual enterprise will get star treatment at this week's Burton Catalyst Conference.

  • July 07, 2003 07 Jul'03

    Neoteris launches Web-conferencing software

    Today, Neoteris plunged into the Web-conferencing market with a new product that will compete directly with market leader WebEx. The Neoteris Meeting Series utilizes the company's existing secure remote access technology, and beta users have given ...

  • July 03, 2003 03 Jul'03

    Fidelia leaps ahead with WLAN monitoring

    Fidelia has jumped ahead of HP and the rest of the network monitoring pack by extending its NetVigil product to monitor wireless LANs, as well as hard-wired networks. The product allows WLANs to be monitored on their own and as part of a larger ...

  • July 01, 2003 01 Jul'03

    Learning Guide: Voice over IP

    Learning resources: White papers, protocols, annotated Web links, and more...

  • July 01, 2003 01 Jul'03

    Cisco makes CCNA program more accessible

    Cisco has created a two-test system for its Cisco Certified Network Associate program. The move makes the process easier for entry-level participants, while maintaining the quality of the certification.

  • June 30, 2003 30 Jun'03

    VoIP-enabled WLANs offer cutting-edge benefits

    Many companies are treading slowly with both VoIP and wireless LAN projects, but one expert at CeBit America last week said that companies should implement them together. By doing so, companies can ensure that their employees can make and receive ...

  • June 30, 2003 30 Jun'03

    Network Management, MIBs and MPLS: Principles, Design and Implementation

    This book excerpt focuses on the principles and concepts of managing large enterprise networks.

  • June 30, 2003 30 Jun'03

    Growth focus led to Nortel's turmoil

    None of the big networking companies have had a good run during the past few years. The Internet bubble burst. Internet service providers folded. Telecom companies stopped buying equipment. Enterprises went into survival mode and slashed budgets. <...

  • June 25, 2003 25 Jun'03

    Cisco makes switch lines more niche friendly

    Cisco has added high-end features to its switching products for medium-sized businesses. The company is targeting schools and companies with remote offices, as those groups show more interest in IP telephony and bandwidth-intensive applications.

  • June 24, 2003 24 Jun'03

    Low-cost Enterasys routers take on Cisco

    Enterasys' new XSR 3000 routers are taking on Cisco with VPN, firewall and routing features. An analyst says the routers are designed with remote offices in mind.

  • June 20, 2003 20 Jun'03

    Preparing networks, and people, for times of trouble

    According to experts who spoke at CeBit America 2003, network planning and redundancy are vital in order to recover quickly from a disaster. IT organizations must also take special steps to protect their people.

  • June 16, 2003 16 Jun'03

    Router Expert: The router is the firewall, part 1-- An overview of the IOS firewall

    Expert Michael Martin examines the available options in the IOS firewall for implementing dynamic access control.

  • June 12, 2003 12 Jun'03

    Cisco's new switch the GI Joe of the network

    Whoever thought an Ethernet switch could help you make your train? Cisco's military-grade Catalyst 2955 switch is bringing Ethernet to new, more rugged environments, including a public transit authority that is using the appliance to keep its data, ...

  • June 12, 2003 12 Jun'03

    Reaping value from storage networks

    This chapter excerpt covers the cost of the storage networking layer by looking at the reasons to combine strategies and the value achieved by doing so across a common platform.

  • June 10, 2003 10 Jun'03

    Cisco fills WLAN management holes with software and promises

    Cisco says it plans to improve WLAN roaming and scalability, as well as RF management by year's end. Though several details are still sketchy, according to The451 it isn't good news for competitors.

  • June 09, 2003 09 Jun'03

    Zyxel bridge offers safe passage to the wireless outdoors

    Zyxel's new wireless bridge enables companies to stretch wireless LANs where they never could before, for just a fraction of the price of competing products. Analysts say the product offers reasonable quality, though companies should still be wary ...

  • June 06, 2003 06 Jun'03

    Cisco IOS configurations in DSL architectures

    This chapter excerpt presents the configurations of the four basic TCP/IP architectures and Point-to-Point Protocol over Ethernet.

  • June 06, 2003 06 Jun'03

    Understanding Layer 2, 3, and 4 protocols

    This chapter excerpt explains the layers of the OSI model, switching, TCP, UDP, and VRRP.

  • June 06, 2003 06 Jun'03

    MPLS and VPN Architectures: Multicast VPN

    This chapter describes in detail how to achieve multicast services between multiple sites of a VPN that has an existing multicast network or is intending to deploy multicast.

  • June 06, 2003 06 Jun'03

    Cisco Networking Simplified: Security

    This chapter excerpt lays out the basic principles of network security in an easy-to-read format with helpful illustrations.

  • June 05, 2003 05 Jun'03

    Technology enables IP-based call centers without IP PBXs

    Rockwell FirstPoint is enabling call centers with IP-based call routing and distribution without installing costly IP PBX systems. The offering gives companies a taste of VoIP, and an analyst says it helps build the business case for the technology.

  • June 02, 2003 02 Jun'03

    Notify pins hopes on GroupWise, Wi-Fi

    Notify Technology expects that its new support for Wi-Fi and Novell's GroupWise, along with the low cost of its mobile office product, will give it a competitive advantage in the crowded mobile e-mail space. According to The451, the company has a ...

  • May 29, 2003 29 May'03

    The 10 Most Misunderstood Terms in IT

    Here are the ten terms that our users report as 'most misunderstood' by those who work in information technology.

  • May 28, 2003 28 May'03

    Traffic and Everything Like Traffic Dealing with Network Performance Degradation

    This White Paper explains network idiosyncrasies and degradations and discusses best practices to identify these network problems, leading to their resolution.

  • May 28, 2003 28 May'03

    School system gives Web caching high marks

    A large school system in North Carolina is using Network Appliance's Web caching software to improve network performance and block students from accessing inappropriate content. An analyst says Web caching technology can benefit a broad range of ...

  • May 27, 2003 27 May'03

    Extreme Networks CEO touts innovation, bashes foes

    In a keynote address at this year's Networld+Interop conference in Las Vegas, Extreme Networks Inc. CEO Gordon Stitt spoke at length about the need for technology companies to focus on innovation, despite the slow economy. While others in the ...

  • May 22, 2003 22 May'03

    Gold Wire strikes high-availability chord

    This week, Gold Wire Technology released its Formulator 200 High Availability Cluster appliance, offering administrators a single point of access for managing devices and configurations across a mission-critical network. The product is geared toward...

  • May 21, 2003 21 May'03

    Voice, Video, and Data Network Convergence: Applications using the converged network

    Is the real driving force behind the deployment of converged networks saving money, or the advanced capabilities convergence makes possible? The real driving force, says this chapter of Voice, Video, and Data Network Convergence, is the ...

  • May 15, 2003 15 May'03

    Easy-to-use SSL gaining on IPsec VPNs

    Secure Sockets Layer (SSL) is beginning to rival the IPsec VPN as a method of providing secure remote network access. Analysts and an admin say SSL is easier to use and manage. Others, however, say the technology isn't as secure and won't fully ...

  • May 14, 2003 14 May'03

    CCIE Security: Operating Systems and Cisco Security Applications

    This chapter excerpt reviews two of today's most common end user operating systems, UNIX and Windows NT.

  • May 14, 2003 14 May'03

    Implementing Cisco IPv6 Networks: IPv6 Addressing

    Learn about IPv6 addressing and see sample configurations using the Cisco IOS technology to acquire basic knowledge to configure and operate routers in an IPv6 environment.

  • May 14, 2003 14 May'03

    OSPF Network Design Solutions: Redistribution

    When routing information from one routing protocol, such as OSPF, is redistributed into IGRP, you must be mindful of possible routing loops.

  • May 14, 2003 14 May'03

    Intelligent switches enable WLAN growth

    A new breed of wireless switch technology is helping wireless LAN managers alleviate headaches and scale networks more efficiently. The New York Institute of Technology is using switches from Symbol Technologies to centralize management of a ...

  • May 13, 2003 13 May'03

    Analyst: In converged networks, quality of service paramount

    Network convergence -- the movement of data, video and voice to one network -- is becoming a reality for a growing number of companies. While this approach can streamline a network, save capital costs and increase productivity, it can also cause a ...

  • May 12, 2003 12 May'03

    Startup's WLAN approach appeals to Ivy League school

    Configuring dozens of wireless LAN access points can be tedious to say the least, but centralization hardware from startup Chantry Networks is helping a university scale and manage its WLAN more efficiently. Yet an analyst questions whether ...

  • May 08, 2003 08 May'03

    AT&T's Ianna: Last mile still the biggest challenge interviewed the president of AT&T's network services group, Frank Ianna, on the challenges around last mile technologies.

  • May 07, 2003 07 May'03

    Putting wireless LAN fears to rest

    Security holes in wireless local area network (LAN) standards have caused many businesses to think twice about deploying the technology. While wireless has been one of the few bright spots in the IT sector, Wai Sing Lee, an analyst with New ...

  • May 06, 2003 06 May'03

    Entuity update calms network storms

    The latest edition of Entuity's Eye of the Storm network management product examines several OSI layers to help avoid performance problems, and one test user says it has helped his company use fewer people to manage its network.

  • May 01, 2003 01 May'03

    Replacing your T1 with nothing but air

    If your company could have T1 service without paying to install the T1 line, wouldn't it be a no-brainer? If Worldwide Interoperability for Microwave Access Inc., or WiMax Forum, has its way, that very scenario may become reality in just a few years...

  • May 01, 2003 01 May'03

    N+I: Users find VoIP deployments relatively trouble-free

    Three customers who participated in a user panel this week at N+I Las Vegas 2003 say that voice over Internet protocol is getting easier to deploy. However, ROI can still be elusive, and an analyst says VoIP still requires plenty of planning.

  • April 30, 2003 30 Apr'03

    N+I: CA's Kumar touts Unicenter on-demand

    Seemingly borrowing a page from IBM's playbook, Computer Associates CEO Sanjay Kumar used his N+I keynote Tuesday to introduce updates to CA's Unicenter network monitoring software. The updates enable on-demand access to as much network computing ...

  • April 30, 2003 30 Apr'03

    Special coverage: at Networld+Interop 2003

    We've gathered all our special coverage of Networld+Interop 2003 in one place. Check back frequently for our latest articles and other news and resources directly from the show floor in Las Vegas.

  • April 29, 2003 29 Apr'03

    N+I: Chambers pushes spending on converged networks

    In his keynote Tuesday at N+I, Cisco Systems CEO John Chambers said companies that invest in intelligent networks and applications can expect to see productivity gains of between 2% and 10% a year. While attendees found merit in his strategy, which ...

  • April 28, 2003 28 Apr'03

    New WLAN functionality highlights N+I opening

    The need to manage and secure wireless LANs is likely to be a hot topic at this week's N+I conference. Two WLAN offerings announced today by Perfigo and ReefEdge combine management features with security applications.

  • April 24, 2003 24 Apr'03

    N+I preview: WLAN, 10-Gig switches creating buzz

    Observers say next week's N+I conference will be well attended, thanks to the buzz surrounding new wireless LAN gear and true 10-Gigabit Ethernet switches. However, the event is entering a key transition period, and organizers are striving to avoid ...

  • April 22, 2003 22 Apr'03

    Analyst, users differ on value of new network-monitoring approach

    Upstart network-management software vendor Fidelia is trying to earn a name for itself as an innovator in the network management field by tying network operations to specific business processes. An analyst says Fidelia's NetVigil provides a whole ...

  • April 21, 2003 21 Apr'03

    Getting started with the Cisco PIX firewall

    This chapter excerpt describes the basic preparation and configuration required to use the network firewall features of the Cisco PIX Firewall.

  • April 21, 2003 21 Apr'03

    Configuring Cisco VPN 3000 for remote access using preshared keys

    This chapter of the CCSP Cisco Secure VPN Exam Certification Guide discusses the process of implementing Internet Protocol Security using preshared keys.

  • April 21, 2003 21 Apr'03

    Do you shoot trouble or does trouble shoot you? Practical studies in troubleshooting

    This chapter excerpt presents an introduction to troubleshooting; a review of standards, protocols, and industry models; and practical troubleshooting techniques.

  • April 16, 2003 16 Apr'03

    Packet Design offers router's eye view of the network

    Most of today's network monitoring tools provide a decent snapshot of devices, but few can offer a router's eye view of network traffic flows. A new product from Packet Design does just that, and both an analyst and a user explain how it can help ...

  • April 15, 2003 15 Apr'03

    Mobile vendors shifting focus from platforms to apps

    Mobile device vendors have stopped selling platforms and started selling applications that target specific business processes. According to a Yankee Group analyst, the emergence of more useful, prepackaged mobile applications to access networked ...

  • April 14, 2003 14 Apr'03

    Meta: Despite downturn, IT workers well paid

    If you're hiring network experts, don't expect to spend less on salaries just because the economy is down. Results of a recent Meta survey show that IT professionals are still earning more than their non-technical co-workers, and some are even ...

  • April 07, 2003 07 Apr'03

    Business use of IM threatened, but FaceTime comes to the rescue

    Instant messaging is a fast, convenient way to communicate with employees and business partners, but security risks are forcing companies to ban the practice. Is your company next? With help from vendor FaceTime, one bank found a way to keep the IMs...

  • April 03, 2003 03 Apr'03

    Tasman takes on Cisco with bandwidth-boosting T1 router

    Upstart infrastructure vendor Tasman Networks is pushing a T1 router that boosts bandwidth to remote offices. The vendor is competing head on with Cisco, an analyst says, but Tasman's product is cheaper than Cisco's, and a user says it's easier to ...

  • April 03, 2003 03 Apr'03

    VoIP and VPN - Perfect together!

    Discover how easy VoIP deployment can be when combined with VPN making you an IT hero with management and the envy of all your colleagues!

  • March 31, 2003 31 Mar'03

    New tool diagnoses dual-mode access points

    Diagnosing wireless LAN problems usually requires special tools, but the latest product from Network Instruments offers hardwired and wireless LAN monitoring -- including dual-mode 802.11a/b access points -- all in one. One network admin says the ...

  • March 27, 2003 27 Mar'03

    Gartner: Mobile success hinges on today's planning

    An analyst who spoke at this week's Gartner Symposium/ITxpo says that long-term success with mobile devices in the enterprise will require IT managers to take control of the proliferating PDAs and smart phones in their workforces today; they must ...

  • March 25, 2003 25 Mar'03

    802.11 Learning Guide

    Get up-to-speed quickly on the various 802.11 specifications with this learning guide.

  • March 25, 2003 25 Mar'03

    Startup uses peer-to-peer to ease WAN bandwidth woes

    Use of video files is becoming more common in the enterprise, but wide area networks can quickly become congested by multiple copies of the same video. A company called Bandwiz is addressing that issue with a new product that uses peer-to-peer ...

  • March 24, 2003 24 Mar'03

    Verio to offer CPE-based VPN service

    Verio is moving into the customer premise equipment market today with the release of a managed CPE-based virtual private network service. According to an analyst, the announcement is significant because it means Verio can now serve large and ...

  • March 21, 2003 21 Mar'03

    Cisco OSPF Command and Configuration Handbook: Route redistribution

    This chapter excerpt focuses on route redistribution commands, including concrete examples and diagrams.

  • March 21, 2003 21 Mar'03

    More on standard for bandwidth utilization over WAN circuit

    More on standard for bandwidth utilization over WAN circuit

  • March 21, 2003 21 Mar'03

    DWDM Network Designs and Engineering Solutions: WDM network design

    This chapter excerpt provides the reader with a firm foundation in a wavelength division multiplexing (WDM) and the basics of optical design.

  • March 21, 2003 21 Mar'03

    Traffic Engineering with MPLS: Quality of service

    This chapter excerpt focuses on quality of service (QoS) in traffic engineering, specifically covering the DiffServ architecture and interaction, EXP for packet forwarding, the Modular QoS CLI, and the emerging DiffServ-Aware Traffic Engineering ...

  • March 21, 2003 21 Mar'03

    Web-based VPNs offer cheaper, easier alternative

    Neoteris is one of a handful of companies now offering Web-based VPNs. According to a Neoteris customer and an analyst, client-free VPN products are gaining momentum because they provide a cheaper, easier way for remote workers to securely connect ...

  • March 20, 2003 20 Mar'03

    CTIA: School officials see value in on-campus wireless

    Wireless LANs can be expensive and complex, but educators from several universities at this week's CTIA Wireless 2003 conference say that wireless networks can provide a competitive advantage over other schools and create new ways to boost revenue.

  • March 19, 2003 19 Mar'03

    CTIA: Experts say wireless is worth the work

    There's no hiding the fact that wireless network deployments are often more complicated than IT managers expect. However, according to experts at this week's CTIA Wireless 2003 conference, wireless systems can provide a competitive advantage by ...

  • March 18, 2003 18 Mar'03

    CTIA: CIOs want simplicity from wireless apps

    According to a panel of CIOs who gathered yesterday at the CTIA conference, wireless applications can increase worker productivity and save money, but only if they fulfill a clear business need and are simple to use.

  • March 17, 2003 17 Mar'03

    Amid convergence, Alcatel touts carrier-class networks

    As voice, data, video and storage converge on IP networks, a principal technologist with Alcatel says enterprises will be pushed toward carrier-class infrastructures to ensure quality of service and high levels of bandwidth and redundancy.