Description of Business	12 Months Ended
Jul. 31, 2012
Description of Business	1. Description of Business The Company operates in one industry segment serving two market areas, bandwidth management and mobile broadband optimization. We develop and market Intelligent Bandwidth Management solutions for fixed line and mobile network operators worldwide and provide services associated with such products. Our current and prospective customers include domestic and international wireline and wireless network service providers, utility companies, large enterprises, multiple systems operators and government entities (collectively referred to as “service providers”). Our existing bandwidth management portfolio of optical switches, multiservice cross-connects and multiservice access platforms serve applications that extend across the network infrastructure, from multiservice access and regional backhaul to the optical core. We also develop and market a mobile broadband optimization solution designed to help mobile operators reduce congestion in mobile access networks. We believe our products enable network operators to efficiently and cost-effectively provision and manage network capacity to support a wide range of converged services such as voice, video and data. As used in these Notes to the Consolidated Financial Statements, “Sycamore,” “we,” “us,” or “our” refers collectively to Sycamore Networks, Inc. (the “Company”) and its subsidiaries.

Description of Business

12 Months Ended

Jul. 31, 2012

1. Description of Business

The Company operates in one industry segment serving two market areas, bandwidth management and mobile broadband optimization. We develop and market Intelligent Bandwidth Management solutions for fixed line and mobile network operators worldwide and provide services associated with such products. Our current and prospective customers include domestic and international wireline and wireless network service providers, utility companies, large enterprises, multiple systems operators and government entities (collectively referred to as “service providers”). Our existing bandwidth management portfolio of optical switches, multiservice cross-connects and multiservice access platforms serve applications that extend across the network infrastructure, from multiservice access and regional backhaul to the optical core. We also develop and market a mobile broadband optimization solution designed to help mobile operators reduce congestion in mobile access networks. We believe our products enable network operators to efficiently and cost-effectively provision and manage network capacity to support a wide range of converged services such as voice, video and data. As used in these Notes to the Consolidated Financial Statements, “Sycamore,” “we,” “us,” or “our” refers collectively to Sycamore Networks, Inc. (the “Company”) and its subsidiaries.