News

Application Acceleration and Server Load Balancing

  • August 27, 2010 27 Aug'10

    Virtual Private LAN Service: Extending the LAN over a dumb WAN

    Virtual Private LAN Service (VPLS) enables multipoint-to-multipoint communication over carrier-based MPLS/IP networks, basically enabling enterprises to extend LAN segments over long distances. In ...

  • August 18, 2010 18 Aug'10

    WAN security: Block peer-to-peer traffic in favor of FTP server

    A crackdown on Facebook and IM usage revealed a gaping WAN security hole for one enterprise. Users had been swapping corporate data via peer-to-peer (P2P) file-sharing sites, leading its WAN pros to block P2P traffic and redirect users to the ...

  • August 11, 2010 11 Aug'10

    Building an outdoor wireless LAN for a roving worksite

    The crew of ABC's Extreme Makeover: Home Edition built a new Wi-Fi network with outdoor wireless access points. It travels with them across the country.

  • June 23, 2010 23 Jun'10

    CCIE recertification alternative: CCIE Emeritus program for veterans

    CCIE recertification can be onerous for high-level engineers who no longer have hands-on technology roles. Cisco's CCIE Emeritus program offers these veterans the opportunity to stay connected to the program without having to obtain CCIE ...

  • June 22, 2010 22 Jun'10

    40 and 100 Gigabit Ethernet ratification doesn't mean immediate uptake

    40 and 100 Gigabit Ethernet ratification means that vendors can roll out standardized 40 and 100 GbE switching products with enormous speed, but users are likely to hold off until prices come down and the need for performance is greater.

  • June 17, 2010 17 Jun'10

    Will TRILL replace spanning tree protocol in data center networks?

    The Transparent Interconnection of Lots of Links (TRILL) protocol is a pending IETF standard that could eliminate spanning tree protocol from standard data center network design. Vendors like Brocade are already staking their future on it.

  • June 16, 2010 16 Jun'10

    Service delivery management: Integrating IT management tools

    Enterprise network management software vendors are retooling their products for service delivery management. Service assurance products from NetScout, CA and others are combining network management with other IT management tools to give enterprises ...

  • June 03, 2010 03 Jun'10

    Data center networks and server virtualization: Who has a silver bullet?

    Server virtualization has forced network vendors to reinvent the data center network. Everyone has his own vision of how to deliver a network that is optimized for virtual data centers. Enterprises should think twice about just going with their ...

  • May 27, 2010 27 May'10

    Are network certifications a racket, due to cheaters?

    Braindumps, testkings, proxy testers and collusion -- the methods that people use to cheat on network certification exams hurt the reputation of Cisco certifications and other vendor training programs. But networking pros who put in the necessary ...

  • May 11, 2010 11 May'10

    Aruba acquires industrial wireless outdoor mesh specialist

    Industrial wireless outdoor mesh will increase in importance as enterprises look for ways to wirelessly connect carpeted offices to far-flung industrial locations. The Aruba-Azalea Networks acquisition could help companies that have struggled with ...

  • May 05, 2010 05 May'10

    Why hiding the SSID won't solve PCI DSS wireless compliance

    Although the PCI DSS wireless guidelines released last year sought to dispel any confusion about wireless LAN security risks, enterprises are still neglecting security requirements and falling prey to old WLAN wives' tales. Hiding SSIDs isn't enough.

  • April 28, 2010 28 Apr'10

    Interop panel discusses future of data center network architecture

    Data center network architecture is heading for a reckoning, according to vendors at Interop. During a panel session dubbed "Why the Network Must Fundamentally Change," vendors like Cisco, Juniper and HP predicted a data center with a flat Layer 2 ...

  • April 13, 2010 13 Apr'10

    FCoE data center: Can data and storage network convergence go too far?

    The FCoE data center offers enterprises the opportunity to converge data and storage traffic on a single network infrastructure. Most experts see data center network convergence as an opportunity to reduce cost and complexity within servers and ...

  • March 31, 2010 31 Mar'10

    Magic Quadrant says now is the time for next-generation firewalls

    Vendors have been slow to deliver next-generation firewalls, but Gartner's Magic Quadrant for enterprise firewalls says that is about to change. Enterprises need an intelligent firewall that has IPS capabilities and application visibility.

  • March 31, 2010 31 Mar'10

    What's there to know about Silver Peak WAN acceleration products?

    Company CTO and founder Dr. David Hughes shares the story behind Silver Peak WAN acceleration products in this interview with SearchEnterpriseWAN.com. If you want to learn how Silver Peak differs from the rest of the WAN optimization market, read ...

  • March 16, 2010 16 Mar'10

    The aesthetics of wireless access point design and placement

    The physical appearance of wireless LAN access points is becoming more important for enterprises. Meru Networks has launched a new family of subtle and compact access points with internal antennas, which will allow at least one hotel to adopt voice ...

  • March 04, 2010 04 Mar'10

    Improving network troubleshooting methodology, IP address management

    A growing airport reinvented its network troubleshooting methodology and approach to IP address management by scrapping a network management product that wasn't working out and replacing it with SolarWinds' Orion product suite.

  • February 03, 2010 03 Feb'10

    Licensing changes in IOS 15 target use of illicit Cisco IOS emulators

    Users are breaking their silence about widespread but illicit use of Cisco IOS emulators without software licenses in home labs now that Cisco Systems' latest version of its operating system, IOS 15, threatens to crack down on them.

  • December 18, 2009 18 Dec'09

    Avaya-Nortel acquisition: Infamous end; questionable beginning

    The Avaya-Nortel acquisition was one of the more notable top networking stories of 2009, marking the end of a legacy player and a questionable beginning for Avaya as it struggles with whether to integrate the Nortel data networking portfolio.

  • December 16, 2009 16 Dec'09

    Global carrier simplifies WAN security with next-generation firewalls

    Deploying a group of Palo Alto next-generation firewalls allowed IDT Corp. to decommission dozens of weak legacy firewalls and simplify WAN security management.

  • December 02, 2009 02 Dec'09

    Port blocking: Why corporate computers need disabled USB ports

    CableOrganizer.com asked me to review a few products as part of a data theft prevention promotion they were advertising. One such appliance was a USB port block. You may be wondering why you would ...

  • November 19, 2009 19 Nov'09

    Out-of-band network management ensures data center network uptime

    Enterprises with extremely high uptime requirements for their data center networks will spend the extra money on out-of-band network management. The New York Stock Exhange (NYSE Euronext) has built a Force10 network to manage its Juniper production ...

  • October 29, 2009 29 Oct'09

    Enterprises demand next-generation firewalls with IPS, app visibility

    Next-generation firewalls are getting plenty of hype, but not many vendors have completely solved the firewall architecture challenges involved in combining firewalls with IPS and other network security functions.

  • September 24, 2009 24 Sep'09

    Network device management overload: Engineers managing too many boxes

    The number of devices in enterprise networks is growing, but the size of the network engineering teams is not. Engineers need to turn to network automation, standardization and network management outsourcing to keep on top of things.

  • September 23, 2009 23 Sep'09

    802.11n ratification will drive down wireless LAN prices

    With 802.11n ratification and a higher volume of sales, wireless LAN prices are about to drop. Aruba Networks is first to market with its new low-cost AP-105 access point, but others are sure to follow.

  • June 10, 2009 10 Jun'09

    WAN management: Palo Alto adds traffic shaping, QoS, to firewalls

    Firewall vendor Palo Alto Networks has added quality of service and traffic shaping capabilities to its firewall operating system. The new features transform the notion of the traditional firewall into a WAN management technology.

  • May 20, 2009 20 May'09

    Aruba Networks joins lifetime warranty club

    Aruba Networks announced this morning that it will now offer lifetime warranties on all its indoor wireless LAN access points. This will provide some nice investment protection to customers. It's ...

  • May 13, 2009 13 May'09

    Aruba's RAP-2 takes corporate WAN to the teleworker at $99

    Aruba Networks introduces Virtual Branch Network, a portfolio of remote networking products that gives teleworkers and small branch offices secure and simple access to the corporate network.

  • April 30, 2009 30 Apr'09

    Aruba is banging out the wireless LAN customer wins

    Aruba Networks emails me quite often with wireless LAN customer wins. Either it is signing more customers than other WLAN vendors, or it simply publicizes its wins more often.  Usually I don't ...

  • March 12, 2009 12 Mar'09

    Profiling -- and protecting against -- network problem users: The Internet Novice

    With this first entry in a new series about network problem users, SearchNetworking.com looks at the Internet Novice. Though well-meaning, Internet novices can pose a significant threat to the corporate network. Education and smart policies can ...

  • March 11, 2009 11 Mar'09

    Beamforming, RF management key to 802.11n wireless LAN success

    Ruckus Wireless introduced beamforming to 802.11n wireless LAN, taking aim at the RF management techniques of Cisco and other rivals.

  • February 18, 2009 18 Feb'09

    WAN optimization and acceleration appliances tackle SSL traffic

    WAN optimization and acceleration appliances, notably Riverbed's Steelhead appliances, can now accelerate SSL encrypted traffic, ensuring secure travel across the WAN.

  • February 10, 2009 10 Feb'09

    How a new casino manages a giant network with 500 switches, IP voice

    When Station Casinos built its newest property, Aliante Hotel & Casino, a new computing model for slot machines forced the company to deploy a network that was 10 times bigger than anything it had built before. Find out how it was done and how the ...

  • February 05, 2009 05 Feb'09

    Monitoring MPLS network architecture, service levels and connectivity

    A new appliance from Packet Design gives enterprises visibility into their service providers' MPLS networks. With MPLS WAN Explorer, companies can make sure that providers are delivering proper service levels and the right network architecture

  • January 22, 2009 22 Jan'09

    Riverbed gets Mazu Networks for a bargain

    WAN optimization heavyweight Riverbed Technology gobbled up Mazu Networks this week for just $25 million in cash. Mazu is a privately held company that sells network behavior analysis (NBA) tools ...

  • September 30, 2008 30 Sep'08

    Aruba to Customers: Get 200% more WLAN bandwidth, free!

    Christmas is coming a little early this year (don't you hate how it creeps up on you?) for Aruba customers. The WLAN equipment company announced the availability of their Adaptive Radio Management ...

  • June 24, 2008 24 Jun'08

    Wireless deployment tips: How Amtrak deployed Wi-Fi on its trains

    In this Q&A, Nicholas Doggett offers his advice on how organizations can better plan, design and implement their wireless networks and learn what pitfalls they should avoid.

  • June 05, 2008 05 Jun'08

    Distributed antenna system streamlines wireless management

    Distributed antenna systems can help simplify wireless deployments, particularly for those charged with managing multiple systems.

  • May 05, 2008 05 May'08

    Aruba Networks at Interop

    Aruba Networks is one of the top WLAN infrastructure vendors in the market. The last time I checked, they were second to the titan in the market, Cisco. A lot of vendors see the coming generation ...

  • January 09, 2008 09 Jan'08

    Holidays are over; now beware the gadgets

    The post-holiday influx of consumer devices poses increased risk of data leakage and other threats to network security.

  • November 13, 2007 13 Nov'07

    Revenue assurance a critical tool for telecom success

    Proper revenue assurance can help limit the amount of money lost to faulty billing systems, redundantly provided services and fraud.

  • November 08, 2007 08 Nov'07

    Core network services: Breaking down the disconnect

    Core network services, like DNS and DHCP, are critical for network and applications performance, but many companies are still taking an ad hoc approach.

  • November 01, 2007 01 Nov'07

    Mobile TV slowly becoming a reality for American cellular subscribers

    Mobile TV rollouts continue moving forward with the major service providers, despite some daunting challenges.

  • October 23, 2007 23 Oct'07

    What's the opposite of networking?

    Last night I was watching Attack of the Show again and they mentioned a site called BuzzFeed, which picks up the latest and greatest Web trends and conversations and compiles them all with an ...

  • August 28, 2007 28 Aug'07

    FMC, IMS on telecom carrier roadmaps

    FMC and IMS are top of the to-do lists of service providers that are trying to differentiate themselves from the competition, according to a recent Infonetics Research study.

  • August 12, 2007 12 Aug'07

    What is Cisco LEAP/EAP?

    Learn about Cisco's LEAP or wireless EAP, which provides authentication between a wireless client and a WLAN access point using rotating WEP keys.

  • July 30, 2007 30 Jul'07

    Using a packet sniffer for network packet analysis

    A packet sniffer may seem like a humble addition to a network professional's toolkit, but when used correctly, packet sniffers (also known as protocol analyzers) can home in on any number of network problems. "Practical Packet Analysis: Using ...

  • July 10, 2007 10 Jul'07

    Fiber optic network security a necessity

    Fiber optic networks require security measures to ward off fiber taps and intrusions.

  • June 06, 2007 06 Jun'07

    Network access controlled via biometrics

    Fingerprint readers, a form of biometrics, have been used to protect data and endpoints, but now IT is using the security technology to control network access.

  • January 03, 2007 03 Jan'07

    Scan your network for devices

    There are dozens of different devices that can link to the network. SecureWave recently released a free tool that allows network administrators to determine which devices have been hooked up and when.

  • October 11, 2006 11 Oct'06

    A remote worker can threaten network security

    Remote workers are wreaking havoc on their networks. A recent study commissioned by Cisco found that teleworkers are putting security at risk.

  • April 24, 2006 24 Apr'06

    Gartner underscores five overblown threats

    Two Gartner analysts debunk five overhyped security risks they claim are causing companies to miss out on some key emerging technologies.

  • October 10, 2005 10 Oct'05

    Analysts: 3Com trying to woo enterprises with new ad campaign

    Following strategic missteps and profitability woes, 3Com hopes a new ad campaign will remind enterprises that Cisco and HP ProCurve aren't the only vendors in town.

  • 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 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.

  • 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.

  • 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.

  • February 17, 2004 17 Feb'04

    Cisco makes strong move on power over Ethernet

    Cisco catches up to the industry by supporting the IEEE's 802.3af power over Ethernet standard in several of its Catalyst switch lines, paving the way for a new generation of cheaper, more advanced PoE-enabled gear.

  • October 22, 2003 22 Oct'03

    How does a firewall work?

    A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks. (The term also implies the security policy that is used with the programs.) An enterprise ...

  • 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 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.

  • 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.

  • 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 ...

  • January 08, 2003 08 Jan'03

    IPv6 addressing: Format, types, ranges

    In this article on IPv6 addressing, learn about address types, address prefixes, special addresses and more.

  • December 19, 2002 19 Dec'02

    Learn IPv6: Understanding the IPv6 transition

    An overview of what's new in IPv6 with Silvia Hagen, author of IPv6 Essentials.

  • September 16, 2002 16 Sep'02

    Why move from IP version 4 to version 6?

    The Internet has quickly exceeded expectations, and IPv4, which was released in 1980, is creaking. This article from IT-Director.com explains the problems, and looks toward IPv6 and the benefits it offers.

  • August 21, 2002 21 Aug'02

    Security is WLAN's strength and weakness

    Security is the Achilles' heel of wireless local are networks, but also one of its best opportunities.

  • May 07, 2002 07 May'02

    HyperTransport adds networking extensions

    HyperTransport adds networking extensions

  • April 17, 2001 17 Apr'01

    VPN security via ATM backbone

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