Cisco says to buy wireless network firm Cognio

NEW YORK, Sept 18 (Reuters) - Top U.S. network equipment maker Cisco Systems Inc (CSCO.O) said on Tuesday it plans to acquire privately held Cognio Inc, which specializes in wireless network technology.

Terms of the deal, which Cisco expects to close in the first quarter of its 2008 fiscal year, were not disclosed.

Cisco has been expanding its business from routers and switches to a broader range of products, including software and hardware for Web, voice and video communications. (Reporting by Ritsuko Ando)