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LAN

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  • What to look for in an SDN controller

    One of the key challenges confronting potential users of software-defined networking is discerning the specific value of particular SDN controllers. Controllers, after all, play critical role as the key arbiter between network applications and network infrastructure.

  • Cisco Catalyst 6500 vs. Cisco Nexus 7000

    These days, Cisco network administrators are a nation divided. It is not enough for the network admin to say he works in a Cisco shop. The admin should also specify a preference of Cisco switch - either the widely used Cisco Catalyst 6500 family of switches or the cutting-edge Cisco Nexus 7000 line.

  • Big data analytics computing requires a 'maverick fabric' network

    The high-performance computing (HPC) scientific/academic sector is accustomed to using commodity server and storage clusters to deliver massive processing power, but comparable large-scale cluster deployments are now found in the high-end enterprise as well.

  • BT: delivering the most connected Olympic Games ever

    London 2012 will be the first ever Olympic Games to offer public WiFi access inside the competition venues, thanks to a new high-density network from BT.

  • Can Fibre Channel survive Ethernet's assault?

    Expensive and specialised Fibre Channel SANs have been under assault as companies consolidate data traffic over Ethernet. With Fibre Channel disks already largely eliminated from the market by SAS, can networking gear be far behind?

  • Developer support for BlackBerry 10 key to RIM's future

    HTML5 and RIM's larger development strategy will come into sharp focus at BlackBerry World in Orlando. This year, it includes the heavily promoted BlackBerry 10 Jam, an intensive, developer-focused agenda for the new operating system, which has not yet been released in final form.

  • Are zombies sucking the life out of your data centre?

    Goodison says zombies tend to happen for one of two reasons. The first is that a server is lightly commissioned by the business for a period of time and becomes a line item in a spreadsheet somewhere. Over time, the need for the application on that server goes away, but there is no tieback to any physical process to decommission it, or if the decommissioning process does take place, it is only partially completed.

  • Bring your own device - Effective policies and practice in a BYOD environment

    Bring your own device (BYOD) is now ubiquitous among enterprises. For IT leaders this has meant developing and maintaining effective policies and practices to keep the organisation secure and efficient, while managing a proliferation of devices.

  • Wi-Fi, small cells could disrupt mobile

    The rise of mixed mobile networks of Wi-Fi, small cells and traditional base stations, a major theme of this week's Mobile World Congress in Barcelona, may change the competitive landscape of both service providers and equipment vendors.

  • Self-signed SSL certificates can be secure

    Given the recent problems with SSL certificates provided by third party companies, one has to wonder why we place all this trust in these vendors. We allow them to process and produce "trusted" certificates for our websites, but in the end even Google, Microsoft and state and federal governments are falling victim to fraud.





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Simplify the data centre network and optimise operations with LAN and SAN convergence

Traditionally, data centers were architected around the need to manage and maintain physical infrastructure such as servers, storage and networking. In order to manage these assets effectively, IT organizations had to create dedicated work groups. Over time these work groups tended to evolve into rigid groups of organizational and political silos. The separation of physical infrastructure and IT silos resulted in inefficient utilization of resources, slow deployments, rising operating costs and high cost of growth.
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WAN optimisation gives rise to edge virtual server infrastructure

WAN optimisation has been effective in pushing the industry toward a data center without boundaries, but it doesn?t address all IT challenges in the branch. A new approach called edge virtual server infrastructure (edge-VSI) helps to bring the vision a step closer by allowing IT to consolidate and manage all edge servers in the data center with LAN performance at the edge, all at up to 50 percent of the cost of managing traditional distributed environments.
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Key elements of security

The arrival of the LAN and the internet bought along with it advanced persistent threats. The PC was initially the target of threats but soon after servers and network devices became targets.
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Building secure wireless LAN

This whitepaper will help the wireless network administrator or security manager to understand the security capabilities in a modern Wi-Fi solution, where they should be used and how the WLAN integrates with other security devices in the network. Finally this document will describe how Aerohive provides a comprehensive and market leading Wi-Fi security solution for the enterprise.
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The network impact of 802.11n

802.11n enables significant productivity benefits for mobile computing, while opening up new wireless applications.
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