Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 29, 2016		Oct. 31, 2015	Nov. 01, 2014	May 27, 2016
Finite-Lived Intangible Assets
Payments to Acquire Intangible Assets		$ 0		$ 7,750	$ 0
Indefinite-lived Intangible Assets, Period Increase (Decrease)		18,100
Gross Carrying Value		484,330		74,570
Accumulated Amortization		58,552		14,057
Intangible Assets, Net (Excluding Goodwill)		449,778		75,623
Net Carrying Value		$ 425,778		$ 60,513
Weighted-Average Remaining Useful Life		6 years 29 days		6 years 6 months 18 days
Indefinite-Lived Intangible Assets (Excluding Goodwill)		$ 24,000		$ 15,110
Intangible Assets, Gross (Excluding Goodwill)		508,330		89,680
Cost of Fully Amortized Intangible Assets		1,000
Trade names
Finite-Lived Intangible Assets
Gross Carrying Value		45,090		1,090
Accumulated Amortization		2,359		415
Net Carrying Value		$ 42,731		$ 675
Weighted-Average Remaining Useful Life		10 years 6 months 4 days		4 years 4 months 10 days
Core/developed technology (1) (2)
Finite-Lived Intangible Assets
Gross Carrying Value		$ 286,290	[1],[2]	$ 40,530
Accumulated Amortization		37,352	[1],[2]	9,605
Net Carrying Value		$ 248,938	[1],[2]	$ 30,925
Weighted-Average Remaining Useful Life		5 years 6 months 4 days	[1],[2]	3 years 5 months 26 days
Patent portfolio license (3)
Finite-Lived Intangible Assets
Gross Carrying Value	[3]	$ 7,750		$ 7,750
Accumulated Amortization	[3]	1,935		849
Net Carrying Value	[3]	$ 5,815		$ 6,901
Weighted-Average Remaining Useful Life	[3]	17 years		17 years 8 months 26 days
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Value		$ 143,110		$ 23,110
Accumulated Amortization		15,813		2,484
Net Carrying Value		$ 127,297		$ 20,626
Weighted-Average Remaining Useful Life		6 years 3 months 25 days		7 years 2 months 5 days
Non-compete agreements
Finite-Lived Intangible Assets
Gross Carrying Value		$ 1,050		$ 1,050
Accumulated Amortization		983		664
Net Carrying Value		$ 67		$ 386
Weighted-Average Remaining Useful Life		3 months 14 days		1 year 2 months 1 day
Patents with broader applications
Finite-Lived Intangible Assets
Gross Carrying Value		$ 1,040		$ 1,040
Accumulated Amortization		110		40
Net Carrying Value		$ 930		$ 1,000
Weighted-Average Remaining Useful Life		13 years 4 months 17 days		14 years 4 months 17 days
In-process technology
Finite-Lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]	$ 24,000		$ 15,110
Ruckus [Member] | In-process technology
Finite-Lived Intangible Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets						$ 27,000
Minimum
Finite-Lived Intangible Assets
UsefulLifeofCompletedIPRD		5 years
Maximum
Finite-Lived Intangible Assets
UsefulLifeofCompletedIPRD		7 years

[1] Acquired IPR&D is an intangible asset accounted for as an indefinite-lived asset until the completion or abandonment of the associated research and development effort. If the research and development effort associated with the IPR&D is successfully completed, then the IPR&D intangible asset will be amortized over its estimated useful life to be determined at the date the effort is completed. During the year ended October 29, 2016, the Company acquired $27.0 million in IPR&D intangible assets in connection with the acquisition of Ruckus. The research and development efforts associated with these IPR&D intangible assets are expected to be completed in fiscal year 2017. During the year ended October 29, 2016, research and development efforts were completed on $18.1 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as core/developed technology over their estimated useful lives of five to seven years.

[2] During the fiscal year ended October 29, 2016, $1.0 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.

[3] The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license.