Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	May 03, 2014	Apr. 27, 2013	May 03, 2014	Apr. 27, 2013
Net revenues
Product	$ 442,280	$ 451,746	$ 917,485	$ 953,993
Service	94,630	87,038	183,960	173,520
Total net revenues	536,910	538,784	1,101,445	1,127,513
Cost of revenues
Product	142,271	164,599	295,898	338,974
Service	40,347	40,073	78,585	80,502
Total cost of revenues	182,618	204,672	374,483	419,476
Gross margin	354,292	334,112	726,962	708,037
Operating expenses:
Research and development	90,554	98,429	177,710	196,119
Sales and marketing	139,597	145,316	272,262	294,327
General and administrative	21,112	20,037	41,255	39,114
Amortization of intangible assets	131	13,151	10,014	28,007
Restructuring, goodwill impairment, and other related costs (Note 7)	82,703	0	88,920	0
Gain on sale of network adapter business	0	0	(4,884)	0
Total operating expenses	334,097	276,933	585,277	557,567
Income from operations	20,195	57,179	141,685	150,470
Interest expense	(9,234)	(10,432)	(18,430)	(36,800)
Interest and other income (loss), net	(20)	31	(1,356)	97
Income before income tax	10,941	46,778	121,899	113,767
Income tax expense (benefit)	24,625	(171)	54,699	88,073
Net income (loss)	$ (13,684)	$ 46,949	$ 67,200	$ 25,694
Net income (loss) per share—basic	$ (0.03)	$ 0.10	$ 0.15	$ 0.06
Net income (loss) per share—diluted	$ (0.03)	$ 0.10	$ 0.15	$ 0.06
Shares used in per share calculation—basic	436,167	453,133	438,370	453,988
Shares used in per share calculation—diluted	436,167	466,919	451,999	466,620