SAN JOSE, Calif. – Sept. 20, 2010 - Cisco today announced it has completed its acquisition of privately held Arch Rock Corporation, a pioneer in Internet Protocol-based wireless network technology for smart-grid applications. Based in San Francisco, Arch Rock will accelerate Cisco's ability to facilitate the utility industry's transition to an open and interoperable smart grid by enabling Cisco to offer a comprehensive and highly secure advanced metering infrastructure solution that is fully IP and open-standards based.