Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 26, 2013	Jan. 28, 2012
Net revenues
Product	$ 502,247	$ 476,302
Service	86,482	84,340
Total net revenues	588,729	560,642
Cost of revenues
Product	174,375	175,407
Service	40,429	40,466
Total cost of revenues	214,804	215,873
Gross margin	373,925	344,769
Operating expenses:
Research and development	97,690	89,319
Sales and marketing	149,011	152,688
General and administrative	19,077	18,350
Amortization of intangible assets	14,856	14,993
Total operating expenses	280,634	275,350
Income (loss) from operations	93,291	69,419
Interest expense	(26,368)	(13,046)
Interest and other income (loss), net	66	(996)
Income (loss) before income tax	66,989	55,377
Income tax expense (benefit)	88,244	(3,207)
Net income (loss)	$ (21,255)	$ 58,584
Net income (loss) per share - basic (dollars per share)	$ (0.05)	$ 0.13
Net income (loss) per share - diluted (dollars per share)	$ (0.05)	$ 0.12
Shares used in per share calculation - basic	454,843	452,494
Shares used in per share calculation - diluted	454,843	468,738