The aggregate cost of goods produced and sold and services rendered during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 31, 2015	Oct. 29, 2016	Oct. 31, 2015	Nov. 01, 2014
Segment Reporting Information
Net revenues	$ 657,299	$ 590,721	$ 523,306	$ 574,284	$ 588,827	$ 551,819	$ 546,575	$ 576,239	$ 2,345,610	$ 2,263,460	$ 2,211,267
Cost of revenues									829,271	735,387	745,474
Gross margin	$ 420,314	$ 356,899	$ 350,311	$ 388,815	$ 394,277	$ 371,904	$ 372,209	$ 389,683	1,516,339	1,528,073	1,465,793
SAN Products
Segment Reporting Information
Net revenues									1,229,184	1,301,231	1,326,950
Cost of revenues									295,100	311,881	344,466
Gross margin									934,084	989,350	982,484
IP Networking Products
Segment Reporting Information
Net revenues									730,412	601,170	525,237
Cost of revenues									362,061	275,634	247,975
Gross margin									368,351	325,536	277,262
Global Services
Segment Reporting Information
Net revenues									386,014	361,059	359,080
Cost of revenues									172,110	147,872	153,033
Gross margin									$ 213,904	$ 213,187	$ 206,047