Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	May 02, 2015	May 03, 2014	May 02, 2015	May 03, 2014
Net revenues:
Product	$ 458,243	$ 442,280	$ 944,481	$ 917,485
Service	88,332	94,630	178,333	183,960
Total net revenues	546,575	536,910	1,122,814	1,101,445
Cost of revenues:
Product	137,612	142,271	287,538	295,898
Service	36,754	40,347	73,384	78,585
Total cost of revenues	174,366	182,618	360,922	374,483
Gross margin	372,209	354,292	761,892	726,962
Operating expenses:
Research and development	91,870	90,554	177,101	177,710
Sales and marketing	143,078	139,597	283,316	272,262
General and administrative	20,722	21,112	45,393	41,255
Amortization of intangible assets	627	131	765	10,014
Acquisition and integration costs	2,344	0	2,344	0
Restructuring, goodwill impairment, and other related costs (benefits)	(637)	82,703	(637)	88,920
Gain on sale of network adapter business	0	0	0	(4,884)
Total operating expenses	258,004	334,097	508,282	585,277
Income from operations	114,205	20,195	253,610	141,685
Interest expense	(10,552)	(9,234)	(35,976)	(18,430)
Interest and other income (loss), net	466	(20)	(93)	(1,356)
Income before income tax	104,119	10,941	217,541	121,899
Income tax expense	27,079	24,625	53,234	54,699
Net income (loss)	$ 77,040	$ (13,684)	$ 164,307	$ 67,200
Net income (loss) per share—basic	$ 0.18	$ (0.03)	$ 0.39	$ 0.15
Net income (loss) per share—diluted	$ 0.18	$ (0.03)	$ 0.38	$ 0.15
Shares used in per share calculation—basic	420,718	436,167	424,627	438,370
Shares used in per share calculation—diluted	433,234	436,167	436,195	451,999
Cash dividends declared per share	$ 0.035	$ 0.000	$ 0.070	$ 0.000