Business Combinations (Tables)

12 Months Ended

Apr. 29, 2011

Acquisition of Akorri Networks, Inc. [Member]

Purchase Price Allocation to Estimated Assets and Liabilities Based on Their Estimated Fair Values

Cash	$	0.7
Other current assets		0.8
Other non-current assets		7.3
Deferred revenue		(1.2	)
Accounts payable and accrued liabilities		(0.5	)
Identified intangible assets		22.0
Deferred income taxes		9.9
Goodwill		23.3
Total initial purchase price	$	62.3

Identified Intangible Assets

	Fair Value		Useful Life (Years)
Developed technology	$	18.7		6
Customer relationships		2.3		3
Trademarks and trade names		0.6		4
Covenant not to compete		0.4		2
Total identified intangible assets	$	22.0

Bycast Acquisition [Member]

Summary of Purchase Price

Cash	$	80.5
Fair value of vested options assumed		3.3
Total initial purchase price	$	83.8

Purchase Price Allocation to Estimated Assets and Liabilities Based on Their Estimated Fair Values

Cash	$	5.7
Tangible assets		3.8
Deferred revenue and other liabilities		(1.4	)
Identified intangible assets		23.6
Deferred income taxes		(3.9	)
Goodwill		56.0
Total initial purchase price	$	83.8

Identified Intangible Assets

	Fair Value		Useful Life (Years)
Developed technology	$	18.0		5
Customer relationships		4.7		3
Trademarks and trade names		0.7		5
Covenant not to compete		0.2		2
Total identified intangible assets	$	23.6