Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2015	Jan. 25, 2014
Net revenues:
Product	$ 486,238	$ 475,205
Service	90,001	89,330
Total net revenues	576,239	564,535
Cost of revenues:
Product	149,926	153,627
Service	36,630	38,238
Total cost of revenues	186,556	191,865
Gross margin	389,683	372,670
Operating expenses:
Research and development	85,231	87,156
Sales and marketing	140,238	132,665
General and administrative	24,671	20,143
Amortization of intangible assets	138	9,883
Restructuring and other related costs	0	6,217
Gain on sale of network adapter business	0	(4,884)
Total operating expenses	250,278	251,180
Income from operations	139,405	121,490
Interest expense	(25,424)	(9,196)
Interest income and other loss, net	(559)	(1,336)
Income before income tax	113,422	110,958
Income tax expense	26,155	30,074
Net income	$ 87,267	$ 80,884
Net income per share—basic	$ 0.20	$ 0.18
Net income per share—diluted	$ 0.20	$ 0.18
Shares used in per share calculation—basic	428,536	440,573
Shares used in per share calculation—diluted	439,156	453,549
Cash dividends declared per share	$ 0.035	$ 0.000