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Sunday, July 7, 2013

Enterprise mobility to change structure of IT networks

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Enterprise mobility to change structure of IT networks
Jul 7th 2013, 23:00, by omosco

Disruptive technology trends such as enterprise mobility, cloud computing and Information and Communications Technology outsourcing are changing the way organisations deliver and consume ICT services, Dimension Data has said.

The architecture of the communications network, the firm noted, will need to undergo a facelift to accommodate these changes, adding that, "While it will be a necessary and radical adjustment, it won't happen overnight."

This is one of the trends highlighted in the 2013 Network Barometer Report, which was released by Dimension Data.  First published in 2009, the report draws on data from Dimension Data's proprietary Technology Lifecycle Management Assessment completed for over 1,200 organisations of all sizes from all industry sectors, and across all geographies over the past five years.

Dimension Data's Business Development Director for Network Integration, Mr. Raoul Tecala, said, "Last year, we predicted rapid network architecture adjustment in support of growing bring-your-own-device and enterprise mobility demands. Dimension Data still holds the view that enterprise mobility will dramatically change the structure of networks.

"Most campus networks consist of approximately 80% wired ports serving individual users, and 20 per cent wireless LAN ports supporting multiple users.  However, today, users don't want to be tethered to their desks, and as a result, are putting pressure on organisations to facilitate enterprise mobility.

"In addition to this pressure from end-users, networks that are 80 per cent wireless will cost far less to roll out than traditional, predominantly wired networks. And the good news is they will also create a strong foundation for lower operational costs, because they'll be easier to manage, provide unified access, and require less power and cooling.

"We predict that, the combination of these factors will eventually turn the 80:20 ratio on its head so that future networks will be 80 per cent wireless and 20 per cent wired," he explains.

Tecala points out that, from an architectural perspective, networks of the future will not be able to function optimally if most of its wired ports – perhaps every port – cannot support power-over-Ethernet and handle gigabit Ethernet.

 He said according to the firm's data, only one-third of all access switches support power-over-Ethernet, while a little under half support gigabit Ethernet.

He said, "The 80:20 to 20:80 flip will also impact on the uplink environment. Since fewer access switches will serve end users, more bandwidth will be required from the access switch into the core network. Today, the great majority of access switches have one gigabit uplinks in to the core while only 13 per cent of the access switches we counted support 10 gigabit uplinks.

"This is another factor that will compel clients to accelerate the refresh of their networks' access layer. And this is where today's networks appear to be slow on the uptake.

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