PALO ALTO, CA -- Hewlett-Packard will buy Aruba Networks for nearly $2.7 billion in cash, a move that should shore up the computer maker share of the WLAN market. 

According to Gartner, HP is the world's second-largest PC maker, at about 18% of the global market, but has less than a 5% share of the enterprise WLAN market.

Aruba, on the other hand, owns a reported 12% stake of that space, according to IDC.

The enterprise WLAN market is growing at 20%-plus per year in most regions, IDC says.

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