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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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-Article 5

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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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Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Nov. 01, 2014	Aug. 02, 2014	May 03, 2014	Jan. 25, 2014	Oct. 26, 2013	Jul. 27, 2013	Apr. 27, 2013	Jan. 26, 2013	Nov. 01, 2014	Oct. 26, 2013	Oct. 27, 2012
Segment Reporting Information
Net revenues	$ 564,358us-gaap_SalesRevenueNet	$ 545,464us-gaap_SalesRevenueNet	$ 536,910us-gaap_SalesRevenueNet	$ 564,535us-gaap_SalesRevenueNet	$ 558,800us-gaap_SalesRevenueNet	$ 536,551us-gaap_SalesRevenueNet	$ 538,784us-gaap_SalesRevenueNet	$ 588,729us-gaap_SalesRevenueNet	$ 2,211,267us-gaap_SalesRevenueNet	$ 2,222,864us-gaap_SalesRevenueNet	$ 2,237,770us-gaap_SalesRevenueNet
Cost of revenues									745,474us-gaap_CostOfRevenue	813,985us-gaap_CostOfRevenue	854,751us-gaap_CostOfRevenue
Gross margin	377,118us-gaap_GrossProfit	361,713us-gaap_GrossProfit	354,292us-gaap_GrossProfit	372,670us-gaap_GrossProfit	362,640us-gaap_GrossProfit	338,202us-gaap_GrossProfit	334,112us-gaap_GrossProfit	373,925us-gaap_GrossProfit	1,465,793us-gaap_GrossProfit	1,408,879us-gaap_GrossProfit	1,383,019us-gaap_GrossProfit
SAN Products
Segment Reporting Information
Net revenues									1,326,950	1,318,509	1,356,099
Cost of revenues									344,466	355,388	362,608
Gross margin									982,484	963,121	993,491
IP Networking Products
Segment Reporting Information
Net revenues									525,237	552,058	534,757
Cost of revenues									247,975	302,974	327,248
Gross margin									277,262	249,084	207,509
Global Services
Segment Reporting Information
Net revenues									359,080	352,297	346,914
Cost of revenues									153,033	155,623	164,895
Gross margin									$ 206,047	$ 196,674	$ 182,019