News

The OSI Model

  • March 15, 2005 15 Mar'05

    3Com jabs at competitors with new terabit switches

    With a new line of terabit switches, 3Com is not only packing more performance punch in its fight for the high-end switching market, but it's also using scalability to jab at Cisco, Extreme and Force10.

  • March 14, 2005 14 Mar'05

    Authentication tops list of teleworking concerns

    Authentication and reliability are the top concerns for network admins setting up teleworker VPNs, according to Sage Research. It also says one vendor in particular is dominating the market.

  • March 09, 2005 09 Mar'05

    Network automation software offers a familiar rendition

    Opsware puts its acquisition of Rendition Networks to good use with a new network automation offering, looking to edge out competitors in the growing standardized configuration market.

  • March 07, 2005 07 Mar'05

    TAP-dancing into GigE monitoring

    As more companies turn to Gigabit Ethernet on the desktop, Network Instruments taps into the network TAPs market by guaranteeing high-volume data capture and link performance.

  • March 02, 2005 02 Mar'05

    SurfControl rides Internet filtering wave

    3Com and SurfControl are helping enterprises enact appropriate Web usage policies and block dangerous or inappropriate content, part of a growing trend to use the network to thwart malicious content.

  • March 01, 2005 01 Mar'05

    Gartner forecasts challenges for Cisco

    Cisco Systems Inc.'s second-quarter profit almost doubled, but shares fell as sales missed analysts' estimates. Is it a minor bump in the road for the networking giant, or a sign of struggles to come?

    Rachna Ahlawat, principal analyst with the ...

  • February 28, 2005 28 Feb'05

    Price-slashing could shake up WAN appliance market

    One analyst says the low price of one new large-circuit WAN application traffic management device will soon cause a ripple effect of slashed prices in the market.

  • February 28, 2005 28 Feb'05

    Pushing policy enforcement beyond the perimeter

    With transient employees taking notebook PCs everywhere they go, network admins have long desired the ability to extend internal network security policies beyond the perimeter. One vendor is doing just that.

  • February 22, 2005 22 Feb'05

    Blind network pros now have certifications in sight

    Thanks to one university's groundbreaking program, visually impaired networking pros have the chance to earn their Cisco Certified Network Associate certifications.

  • February 16, 2005 16 Feb'05

    New Cisco security strategy targets elusive threats

    Cisco has unveiled a new line of security products to fight against elusive network threats such as phishing, viruses and denial-of-service attacks. Experts laud the moves, but explain why hackers aren't exactly running for cover.

  • February 15, 2005 15 Feb'05

    Sniffer update has a nose for data capture

    The company behind Sniffer offers an updated network performance tool, showing that the venerable packet analysis product could be poised for new life.

  • February 14, 2005 14 Feb'05

    For networking pros, career success lies beyond skills

    Matthew Moran has made a career out of helping IT professionals. He has served as a chief information officer, project manager and technology consultant with a background in programming, network integration and automation, as well as project ...

  • February 08, 2005 08 Feb'05

    VoIP to boost sluggish router market

    In-Stat/MDR says the market for high-end enterprise routers is mature, but one expert says a migration to VoIP will spur significant growth.

  • February 03, 2005 03 Feb'05

    3Com mounts new switch in the wall

    3Com has released what it claims is the industry's first "in-the-wall" Ethernet switch, and one expert says the innovative design will help 3Com recover from previous missteps.

  • February 01, 2005 01 Feb'05

    New Cisco cert calls out to voice pros

    Cisco Systems has launched what it calls its most comprehensive IP telephony certification to date, aiming to cover all the skills IT pros need to implement, monitor and troubleshoot IP telephony systems.

  • January 28, 2005 28 Jan'05

    Chapter of the Week - February 2005

    This month we present you with chapter excerpts focusing on network security

  • January 26, 2005 26 Jan'05

    VoWLAN system takes after sci-fi

    Communications badges that made calls were once a fantasy, but now an Arizona hospital system is using them in a unique voice over Wi-Fi system to keep caregivers in constant contact.

  • January 21, 2005 21 Jan'05

    Top 10 networking terms of '04

    Would you like to know what networking terminology your peers have been searching for the most in 2004? Curious? We were too. Check out our top 10 searched networking terms.

  • January 20, 2005 20 Jan'05

    Cisco's IT services push causes concern

    A recent acquisition has broadened Cisco's IT services capabilities, but one analyst says Cisco's partners may suffer as the networking giant looks to master new markets.

  • January 18, 2005 18 Jan'05

    F5 ignites competition with updated FirePass VPN

    Experts say F5's VPN portfolio expansion proves it can serve companies of all sizes in today's fiercely competitive market, while also bracing for a consolidation that could alter the vendor landscape.

  • January 17, 2005 17 Jan'05

    AlterPoint offers device management 'spell-checking'

    AlterPoint's updated device management suite helps network admins avoid easy-to-make manual errors. Experts say it's a feature that helps the vendor stand out from the crowd.

  • January 13, 2005 13 Jan'05

    Update: Cisco to acquire Airespace for $450 million

    Cisco confirms the long-rumored acquisition, looking to shore up its WLAN product line. However, one expert questions how the companies and their products will mesh.

  • January 10, 2005 10 Jan'05

    Extreme switch aims to cut out the middleman

    One analyst says the vendor's new Aspen line of edge switches hammers the competition with core-quality performance, but Extreme's new two-tier networking paradigm may not be an easy sell.

  • January 06, 2005 06 Jan'05

    Wireless LANs meet needs for compliance

    Encryption with WPA and authentication make data secure for HIPAA and SOX compliance. The real risk might be the employee with a mobile device.

  • December 29, 2004 29 Dec'04

    Eyes, wallets wide open to XML traffic woes in 2005

    Enterprises are expected to spend more on XML acceleration appliances in 2005 to offload performance hits, but hope could be forthcoming in the form of a single binary XML format.

  • December 27, 2004 27 Dec'04

    2005 outlook: Desktops to see Linux, search war and more spyware

    TechTarget's Paul Gillin offers up his annual predictions for the year ahead, and forecasts a pay hike for IT pros, a new owner for Apple and the rise of Linux, spyware and desktop search.

  • December 23, 2004 23 Dec'04

    The security risks of VoIP

    Increasing standardization and prevalence means VoIP will likely be a growing target for attacks. There are ways to keep an enterprise safe, but new technology will soon mean new threats.

  • December 20, 2004 20 Dec'04

    Expert Lisa Phifer: Network-borne attacks continue to grow in 2005

    Check out what Lisa has to say about carbon-based life forms and their penchant for high-risk Internet behavior.

  • December 20, 2004 20 Dec'04

    Expert Michael Gregg: Increased emphasis on intrusion-prevention systems

    Michael Gregg shares his thoughts on IPS, wireless technologies and spam and spyware for 2005.

  • December 20, 2004 20 Dec'04

    Expert Carrie Higbie: LAN speeds catch up with WAN speeds

    Expert Carrie Higbie has a lot to say about what's in store for 2005 in security, identity theft, 40G, outsourcing and more.

  • December 20, 2004 20 Dec'04

    Expert Chris Partsenidis: VoIP remains strong; The year of Bluetooth

    Chris shares his predictions for 2005 and believes VoIP remains steady, Bluetooth has its year and wireless networking replace wired networks at a much faster pace.

  • December 20, 2004 20 Dec'04

    Expert Scott Haugdahl: VoIP buzz shifts from QoS to predictability

    Expert Scott Haugdahl believes 2005 will see a shift from VoIP QoS to predictability and interest in 802.11n will grow.

  • December 14, 2004 14 Dec'04

    Maturing wireless switch market looks ahead

    During the past year, wireless technology has continued to grab headlines worldwide and remains one of the hottest topics of conversation for those in the IT field. One of the most important segments of the wireless market is undoubtedly that of ...

  • December 09, 2004 09 Dec'04

    Siemens to acquire Chantry Networks

    A Chantry executive says customers will gain access to more services and that no jobs will be lost, but an analyst believes WLAN startups that aren't aligned with larger vendors could be in danger.

  • December 08, 2004 08 Dec'04

    Strix spins out mesh for the great outdoors

    Strix Systems has released a mesh networking product line designed for outdoor use, and one California city explains how it's using the technology to build a public access Wi-Fi network.

  • December 07, 2004 07 Dec'04

    HP plans to 'flatten' the network core

    HP not only previews next year's new family of 10 GigE stackables, but also offers a glimpse at its new strategy that emphasizes edge intelligence and eliminates redundant functionality in the network core.

  • December 03, 2004 03 Dec'04

    Networking mailbag: True certification and training experiences

    Recently, we asked readers if certification or training programs helped their career advancement and whether they felt the outcome was worth the time and money invested. We also asked to hear from managers responsible for hiring networking pros if ...

  • December 02, 2004 02 Dec'04

    Opsware to acquire Rendition Networks

    Opsware is purchasing device configuration specialist Rendition Networks for $33 million in cash and stock, a sign that market activity could be picking up as companies look to reduce configuration errors.

  • November 30, 2004 30 Nov'04

    Cisco's switching updates focus on high availability, PoE

    Cisco is rounding out its switching portfolio with a pair of new supervisors, as well as LAN access interface modules and other devices, making high availability and PoE-enabled products more affordable.

  • November 23, 2004 23 Nov'04

    Demand to grow for IP address management devices

    With a growing number of attacks targeting the DNS, one research firm explains why demand for appliances that manage IP addresses will grow in the coming years.

  • November 11, 2004 11 Nov'04

    Cisco employs AirDefense to monitor WLAN airwaves

    Cisco has partnered with AirDefense to make it easier for enterprises to monitor for wireless LAN attacks and rogue access points.

  • November 10, 2004 10 Nov'04

    Are 'dumb' networks really smarter?

    During a debate at last week's Next Generation Networks conference, one expert argued that "dumb" networks enable services at the edge, while another claimed that intelligent networks enable technical innovation.

  • November 09, 2004 09 Nov'04

    Convergence presents new struggles for admins

    Experts at Networking Decisions warned attendees against underestimating the complexity of adding voice to the network, because small details, like out-of-date network maps and inaccurate traffic forecasts, can mean big headaches.

  • November 04, 2004 04 Nov'04

    Networking pros vital to IT's future

    Network admins will be even more important to IT as next-generation technologies take hold, according to a top analyst at Networking Decisions, but some attendees said these technologies are still a long way off.

  • November 04, 2004 04 Nov'04

    VoIP experts savor SIP's potential

    Panelists at the Next Generation Networks conference were bullish on SIP's capabilities and its future, while one of Cisco's top strategists explained why it has delayed end-to-end SIP support in CallManager.

  • November 03, 2004 03 Nov'04

    VoIP security daunting, but possible

    Next Generation Networks conference speakers said securing VoIP calls is much more complicated than many expected, but it is possible for enterprises to keep VoIP systems secure.

  • October 28, 2004 28 Oct'04

    Expert claims Wi-Fi is far from dead

    Fixed wireless broadband is on the rise, and WiMax, the standardized version of fixed wireless broadband, will be available in some areas this year. With a theoretical range of 30 miles and a throughput of 72 Mbps, 802.16e-based chipsets are ...

  • October 21, 2004 21 Oct'04

    Experts: Vendors 'lying' about VoIP cost savings

    Though vendors often promise that VoIP will lead to immediate and drastic cost savings, analysts at this week's VON Conference & Expo said, in reality, the short-term costs can be enormous.

  • October 20, 2004 20 Oct'04

    Alcatel's new switches styled for convergence

    Alcatel hopes to boost its midmarket presence with new convergence gear, but with plenty of competition one expert says before the company can find customers, it must find itself.

  • October 19, 2004 19 Oct'04

    Is offshore outsourcing worth the loss of IT jobs?

    IT executives and outsourcing experts debate the pros and cons of offshoring -- are the losses worth the gains?

  • October 18, 2004 18 Oct'04

    Extreme launches PoE switch

    The upstart device vendor gets a leg up on Cisco with a power over Ethernet wireless switch that helped one hospital expand its network without worrying about power outlets.

  • October 14, 2004 14 Oct'04

    Cisco, IBM team up on end-point security

    The vendors are enhancing end-point security to help their joint customers keep networks virus-free, but one expert says only Cisco shops running Tivoli can benefit.

  • October 13, 2004 13 Oct'04

    Hosted VoIP has its advantages, risks

    Resellers say that for some businesses, hosted VoIP can be superior to an in-house implementation, but big carriers offering the service haven't quite worked out all the bugs.

  • October 12, 2004 12 Oct'04

    WLAN and VoIP: A match made in heaven?

    Marrying wireless LAN and VoIP technology isn't easy, but one expert says that with enough effort and expertise, they can live a long, happy life together. However, one admin isn't so sure.

  • October 05, 2004 05 Oct'04

    SIP promises sweet taste of interoperability

    While some are disappointed that Session Initiation Protocol hasn't spawned more interoperable voice products, experts explain how SIP-based gear will soon unite voice, video and presence on the network.

  • September 28, 2004 28 Sep'04

    Colubris launches Wi-Fi QoS

    Colubris Networks has released quality of service software for its wireless LAN system that makes it possible to maintain a business-class voice over Wi-Fi implementation. One expert says it's a harbinger of things to come.

  • September 27, 2004 27 Sep'04

    Cisco helps SMBs build app-ready networks

    Cisco today is updating its switches and management tools for SMBs, reducing the network burdens that come with application deployments.

  • September 21, 2004 21 Sep'04

    Distributing more data without more WAN

    Using a software-based content distribution system that was 1/10th the price of a hardware-based Cisco product, a financial services firm found a way to distribute large files over the WAN without buying extra bandwidth.

  • September 17, 2004 17 Sep'04

    Telephony purchase ABCs for SMBs

    Learn how small and mid-sized businesses can successfully evaluate and select telephony systems.

  • September 16, 2004 16 Sep'04

    End-point vendors gain from slow Cisco strategy

    Cisco promises that its NAC strategy will soon be the best way to assess network device vulnerability, but until it's completed in 2005, other vendors are stepping up to fill the void.

  • September 13, 2004 13 Sep'04

    Cisco targets SMBs with VoIP-friendly routers

    When they debut tomorrow, Cisco's new line of speedy small office routers will be able to support VoIP deployments without bogging down. It's the latest move in an all-in-one device strategy that Cisco hopes will keep it a step ahead of its ...

  • September 09, 2004 09 Sep'04

    Cooldown expected for firewall market

    Firewalls were hot last year, but research shows the standalone market is cooling off as other types of network devices add more security features.

  • September 08, 2004 08 Sep'04

    'Wi-Fi on steroids:' WiMax inches closer to devices

    Intel Corp. announced Tuesday that is it sending samples of its WiMax wireless chip to select customers. Intel's "Rosedale" chip, based on the WiMax wireless broadband technology, is expected to be the first "system on a chip" to support the 802.16 ...

  • September 07, 2004 07 Sep'04

    Avoiding 802.11b/g traffic jams

    One vendor believes it can keep 802.11b clients from slowing traffic on 802.11g networks, but News Writer Jim Rendon wonders if anyone was losing sleep in the first place.

  • September 01, 2004 01 Sep'04

    What is a virtual private network (VPN)?

    Confused about what a virtual private network does? Start here, and then proceed through our links below.

  • August 23, 2004 23 Aug'04

    Singlefin, IMLogic join forces to offer hosted IM

    Singlefin and IMLogic have joined forces to offer new hosted IM filtering services to thwart SPIM, or IM spam, as well as viruses, worms and spyware.

  • August 12, 2004 12 Aug'04

    Configuration and change management defined

    Not sure what exactly configuration and change management are? You're not alone. Here's our concise definition.

  • August 05, 2004 05 Aug'04

    Cisco defends NAC security strategy

    Networking market leader Cisco Systems Inc. wants to fundamentally change network security. While security devices have long been part of the network edge, Cisco is turning that model on its head with its self-defending network strategy by ...

  • August 04, 2004 04 Aug'04

    Wireless LAN planning -- 5 critical steps

    Our guide walks you through the five most important developments in wireless LANs and offers guidelines for product and technology selection. We'll help you avoid potential pitfalls to ensure that your wireless LAN implementation is successful from ...

  • August 02, 2004 02 Aug'04

    VPN market makes room for IPsec and SSL

    IPsec VPNs are entrenched in many enterprises, but easier-to-use SSL VPNs could soon be just as popular. Experts explain where each type of VPN works best.

  • July 27, 2004 27 Jul'04

    Bursting the bubble around enterprise networks

    Disruptive technologies like VoIP and wireless broadband along with more advanced users are forcing network managers out of their comfort zones and into uncharted territory, according to an analyst at Burton Group's Catalyst Conference.

  • July 23, 2004 23 Jul'04

    Redundancy key to high availability VoIP

    At this week's Catalyst Conference, a Burton analyst explained why a VoIP system's success is determined during the implementation, and shed light on pitfalls that can harm quality of service.

  • July 22, 2004 22 Jul'04

    IPv6 offers more than extra addresses

    Even though the U.S. isn't likely to run out of Internet addresses anytime soon, one expert at the Burton Group Catalyst Conference said there are many good reasons to use IPv6.

  • July 19, 2004 19 Jul'04

    For secure networks, choices range beyond Cisco

    Cisco isn't the only company winning the hearts and minds of those looking for hard-core network security. A financial services firm explains how Enterasys is helping to secure its wired and wireless networks without arduous group-based policies.

  • July 15, 2004 15 Jul'04

    Security word search answer key

    Security word search answer key

  • July 13, 2004 13 Jul'04

    Unruly IP addresses spark opportunity

    Former Check Point subsidiary MetaInfo is making a comeback by attacking Cisco in the enterprise IP address management field, which one expert says enterprises often overlook.

  • July 13, 2004 13 Jul'04

    Security word search

    Test your security knowledge by having some fun with this word search and enter our contest for your chance to win a free security book.

  • July 12, 2004 12 Jul'04

    With 802.11i, new standard means new problems

    The new 802.11i standard is expected to make wireless LANs more secure, but authentication interoperability problems could make it harder to run multi-vendor systems.

  • July 07, 2004 07 Jul'04

    Cisco's self-defending networks progress, slowly

    Cisco Systems Inc. has been in the process of folding security into its network infrastructure for some time. The initiative, known as the self-defending network strategy, is a part of Cisco's overall push to add more intelligence into the network. ...

  • July 01, 2004 01 Jul'04

    Cisco Collaboration Server flaw could allow remote attacks

    A flaw in Cisco's Collaboration Server could leave some enterprises open to attacks from remote users. One analyst says the vulnerability demonstrates that the networking giant's software is not up to par with the rest of the industry.

  • June 29, 2004 29 Jun'04

    Demystifying fixed wireless

    A number of fixed wireless broadband services are emerging as low-cost connectivity options for businesses, and that's why many believe the market is likely to boom over the next five years. According to a report from Oyster Bay, N.Y.- based ABI ...

  • June 28, 2004 28 Jun'04

    Juniper adds SAML to SSL VPN

    The networking vendor is the first to add security assurance markup language compatibility to its SSL VPN, streamlining logon processes that are often complicated for users.

  • June 23, 2004 23 Jun'04

    Can 3Com bounce back?

    After losing market share and floundering in the enterprise market, 3Com Corp. is attempting a comeback. The Marlborough, Mass.-based networking vendor still has strong brand recognition and technological know-how. But can it effectively compete ...

  • June 21, 2004 21 Jun'04

    RouteScience, IBM partner for better app performance

    RouteScience is hoping its new partnership with IBM will not only improve application performance for Big Blue's server customers, but also build its own customer base while making its software easier to deploy.

  • June 17, 2004 17 Jun'04

    Renegotiate with providers before it's too late

    It's time to dust off those old service provider contracts and start hunting for bargains. According to a recent brief by the Stamford, Conn.-based research firm, Gartner Inc., network service providers are about to engage in another round of price ...

  • June 16, 2004 16 Jun'04

    Containment is essential for combating attacks

    Because your cyberdefenses are bound to be compromised eventually, your security strategy must include processes and technologies to contain the damage.

  • June 15, 2004 15 Jun'04

    Content filtering helps snub spyware

    ServGate partners with SurfControl adding content filtering to the company's modular multi-function security device.

  • June 14, 2004 14 Jun'04

    Visual Networks links traffic to applications

    A network management vendor's new monitoring suite helps managers determine which applications are causing problems and whether users are ignoring usage policies.

  • June 10, 2004 10 Jun'04

    Relicore improves network mapping

    Relicore has updated its network configuration management software with new real-time mapping capabilities and compatibility with HP OpenView.

  • June 07, 2004 07 Jun'04

    Application delivery for the ROI-driven data center

    As innovation and demand converge in the new ROI-driven data center, yesterday's load balancer is being supplanted by a rapidly evolving category, the application delivery system.

  • June 04, 2004 04 Jun'04

    Spam landscape bleaker than ever

    Columnist Jonathan B. Spira says now that CAN-SPAM has made the problem worse, e-mail is losing its value because legitimate messages are outnumbered sour sales pitches.

  • June 01, 2004 01 Jun'04

    Call quality issues hamper VoWi-Fi

    More companies are starting to factor voice calls into their wireless LAN plans, but it requires more than Wi-Fi phones. Most 802.11 access points can only handle up to eight calls at a time, and voice traffic is easily superseded by large data ...

  • May 26, 2004 26 May'04

    Sprint: Success hinges on converged network

    A top Sprint executive says the company is combining its various networks in order to offer users a consistent experience, regardless of where they are or how they connect.

  • May 19, 2004 19 May'04

    Lessons learned: Symbol's Nuti looks to verticals

    LAS VEGAS -- In January, William Nuti took over as CEO of Symbol Technologies Inc., the second largest enterprise wireless LAN infrastructure provider after Cisco Systems Inc. Nuti, who originally joined the company in July of 2002 as the COO, ...

  • May 18, 2004 18 May'04

    Making sense of performance management products

    The network seems fine, but Oracle keeps timing out and your CRM package is extremely sluggish. Application performance problems plague many networks, but can be difficult to diagnose.

  • May 12, 2004 12 May'04

    What accounting woes? Nortel exec keys on convergence

    In a surprisingly positive keynote at N+I, a top Nortel executive says the troubled networking company is focused on developing convergence technology, and not on the accounting fiasco that took down its CEO.

  • May 12, 2004 12 May'04

    Experts: Don't underestimate Wi-Fi complexity

    Just because a network lacks wires doesn't mean it lacks complexity. Experts at N+I say that enterprises must consider security, applications and user demands, or else a wireless LAN implementation may not succeed.

  • May 05, 2004 05 May'04

    Is convergence inevitable?

    The key theme of last week's Enterprise Networks conference in Boston -- convergence -- made me think of one of my favorite (though far fetched) movie scenes of all time.

  • May 04, 2004 04 May'04

    Gartner: Cisco falling short with CallManager

    Gartner says the software that powers Cisco's IP telephony offering is weak against products from Avaya and Nortel, and that the networking giant may be too confident in its voice business.

  • May 03, 2004 03 May'04

    Siemens rolls out mega-sized VoIP

    Siemens' new VoIP call management software can handle 100,000 users and takes advantage of presence-based apps like instant messaging. An analyst says it holds up well against competition from Avaya and Nortel.

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