Computer networking news, reviews, solutions, and analysis for IT professionals
  • Cisco downplays WLAN vulnerability

    Posted August 25, 2009 - 2:47 pm

    Cisco Systems downplayed a vulnerability in some of its wireless access points, reporting Tuesday that there is no risk of data loss or interception.
  • Apple Will OK Google Voice App--Over Wi-Fi

    Posted August 25, 2009 - 9:47 am

    Those of us who have watched VOIP for a while now always keep an eye out for cases where traditional voice carriers act defensively to keep people from using VOIP.
  • OSPF over Frame-Relay - Part 4: Point-To-Multipoint

    Posted August 10, 2009 - 5:12 pm

    Point-to-multipoint OSPF network type over frame-relay is what I like to call the "cheater method". Why?
  • Keyboard Video Mouse (KVM) - hardware or software configurations

    Posted August 9, 2009 - 4:57 pm

    Managed KVM switching is the integrated operation of a wide range of remote management infrastructures (RMI), including analog, KVM-over-IP, serial-over-IP and/or power-over-IP switches. The term applies whether these devices are from different manufacturers/brands or from a single vendor.
  • OSPF over Frame-Relay - Part 3: Point-To-Point

    Posted August 8, 2009 - 12:23 pm

    In our last two installments we looked at the non-broadcast and broadcast network types for OSPF over frame-relay. In this article we will be taking a look at the point-to-point network type. One thing I always remember regarding frame-relay and OSPF is that a network type of "point-to-ANYTHING" does NOT have a DR/BDR.
  • OSPF over Frame-Relay - Part 2: Broadcast

    Posted August 5, 2009 - 10:32 am

    In part I of our series, we looked at the default OSPF network type on frame-relay (non-broadcast). This begs the question of "OK we know non-broadcast, now what about broadcast?" Excellent, let's get started!
  • Paul Negron - An Interview

    Posted August 4, 2009 - 2:56 pm

    In fact we share a view about the value of the CCIE certification outside of the US and UK. Many network engineers in those two countries use certification to improve their careers and to enhance their earnings potential. In many more countries the CCIE certification is a way to escape poverty.
  • OSPF over Frame-Relay – Part 1: Non-Broadcast

    Posted August 3, 2009 - 2:52 pm

    OSPF is a topic that must be absolutely mastered for the CCIE lab exam. Many students understand the fundamental concepts, but get thrown for a loop when it comes to OSPF running over a frame-relay topology. There are so many different network types and variations, that it can quickly become confusing.
  • Debunking the Top Five VoIP Myths

    Posted July 29, 2009 - 6:22 pm

    It's time to bust the myths that are keeping some small businesses from making the switch to VoIP.
  • CCIE Amnesty Program

    Posted July 20, 2009 - 6:16 pm

    If you have not been informed there are many ways to use your CCIE number. A few of these methods are frowned upon by Cisco and can even cost you that hard earned number. Yes, recently I personally witnessed the revoking of a pair of CCIEs who had associated their numbers to a channel they did not work for. This is strictly forbidden by Cisco and can result in severe penalties to the Channel and the CCIE.
  • Subnetting

    Posted July 10, 2009 - 2:02 pm

    Many CCNA candidates (and some CCNP candidates, as well!) have trouble with subnet masking. These posts go through some shortcuts that make subnet masking calculations easier.
  • Netbooks Are Now (Almost) Free

    Posted July 7, 2009 - 11:34 am

    CDW and AT&T just announced they're bundling a variety of netbooks from HP, Acer, and Panasonic with a two year cellular data network contract. You pay $199 for the netbook and and least $60 per month for the contract.
  • Internet's biggest issue? IPv6 transition, new ARIN CEO says

    Posted July 6, 2009 - 9:12 pm

    Veteran ISP executive John Curran is the new president and CEO of the American Registry for Internet Numbers, a coordinating body that allocates IP addresses and related autonomous system numbers to carriers and enterprises in North America. Curran is taking charge of ARIN at an important juncture in the non-profit's12-year history -- the transition to the long-anticipated upgrade known as IPv6.
  • Broadband subsidy: too much money, but mostly well targeted

    Posted July 6, 2009 - 5:32 pm

    A few weeks ago I aired my worries about how the broadband funding in the Federal stimulus package was going to be spent. The government has now released documentation on that part of the package, and so far things look mostly OK.
  • IT services account managers: Planning globally, acting locally

    Posted July 6, 2009 - 10:08 am

    Both business unit managers and technology consumers are big fans of decentralizing IT. They want it carved up by geography, by lines of business, or some other scheme, with control passed to the local senior business manager. This mania for local control isn't just an affirmation of Tip O'Neill's legendary mantra: 'All politics is local.' It seems to be simple human nature.
  • categorizes downtime events as 'a perfect storm'

    Posted July 6, 2009 - 7:58 am

    Now that the smoke has cleared (literally), we find out a bit more about what happened to's services as a result of the Fisher Plaza data center fire.
  • Cisco to expand mobile collaboration features

    Posted July 1, 2009 - 8:41 pm

    Cisco will tackle the mobile world over the next year with a series of new features to bring smartphones into business communications, the head of the company's software group said at the Cisco Live conference on Wednesday.
  • US agencies require net neutrality with broadband grants

    Posted July 1, 2009 - 8:08 pm

    Two U.S. agencies tasked with distributing about US$7.2 billion in broadband deployment grants and loans over the next 15 months have released an official list of funding rules, imposing net-neutrality clauses on grant applicants.
  • Cisco has to earn market leadership, CTO says

    Posted July 1, 2009 - 7:47 pm

    Cisco Chief Technology Officer Padmasree Warrior struck a humble note in a keynote address at the Cisco Live user conference in San Francisco on Wednesday, saying Cisco needs a broad architecture and services to become a true market leader.
  • Small-Business Network Security 101

    Posted July 1, 2009 - 3:42 pm

  • Korean operators join forces on new mobile services

    Posted July 1, 2009 - 9:35 am

    South Korean operators KT, SK Telecom and LG Telecom have become the first to launch mobile services based on the Rich Communication Suite (RCS), industry organization the GSM Association said on Wednesday.
  • Juniper nixes ATM security talk

    Posted June 30, 2009 - 3:22 pm

    Router maker Juniper Networks has barred one of the company's security researchers from discussing security flaws in Automated Teller Machines after an ATM maker threatened legal action.
  • 5 Traps The (New) Pirate Bay Must Avoid

    Posted June 30, 2009 - 2:45 pm

    Ah, the Internet cafe, home to yuppies, flavored lattes, and The Pirate Bay? If you haven't heard, Swedish Internet cafe operator, Global Gaming Factory X, today bought The Pirate Bay for $7.8 million. The new owner says it intends to sail The Pirate Bay out of its murky waters, and put the former rogues gallery on the straight and narrow. In other words, The Pirate Bay is going legitimate.
  • Cisco won't take on Amazon in cloud

    Posted June 30, 2009 - 2:38 pm

    Cisco Systems won't try to compete with pay-as-you-go cloud computing providers such as Amazon, and instead will sell its infrastructure to those companies and provide its own software as a service.

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