Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 25, 2014	Jan. 26, 2013
Net revenues
Product	$ 475,205	$ 502,247
Service	89,330	86,482
Total net revenues	564,535	588,729
Cost of revenues
Product	153,627	174,375
Service	38,238	40,429
Total cost of revenues	191,865	214,804
Gross margin	372,670	373,925
Operating expenses:
Research and development	87,156	97,690
Sales and marketing	132,665	149,011
General and administrative	20,143	19,077
Amortization of intangible assets	9,883	14,856
Restructuring and other costs	6,217	0
Gain on sale of network adapter business	(4,884)	0
Total operating expenses	251,180	280,634
Income from operations	121,490	93,291
Interest expense	(9,196)	(26,368)
Interest and other income (loss), net	(1,336)	66
Income before income tax	110,958	66,989
Income tax expense	30,074	88,244
Net income (loss)	$ 80,884	$ (21,255)
Net income (loss) per-share—basic	$ 0.18	$ (0.05)
Net income (loss) per-share—diluted	$ 0.18	$ (0.05)
Shares used in per-share calculation—basic	440,573	454,843
Shares used in per-share calculation—diluted	453,549	454,843