Divestitures (Narrative) (Details) (USD $)	3 Months Ended
Jan. 25, 2014	Jan. 26, 2013	Jan. 25, 2014 Network Adapter Business	Jan. 17, 2014 Network Adapter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups
Disposal Group, Description and Timing of Disposal			On January 17, 2014, the Company completed the sale of its network adapter business to QLogic Corporation, as part of the Company’s business strategy to focus on meeting the data center networking needs of customers through next-generation fabrics and software defined networking.
Disposal Group, Goodwill				$ 4,100,000
Net Assets of Disposal Group				5,100,000
Disposal Group, Gain (Loss) on Disposal	$ 4,884,000	$ 0	$ 4,900,000
Disposal Group, Income Statement Caption			Gain on sale of network adapter business

The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

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A description of the facts and circumstances leading to the completed or expected disposal, and the manner and timing of that disposal. Sales of disposal groups, including those classified as components of the entity (discontinued operations), are generally expected to be completed within one year of their classification as held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.Z.5 Q2)

-URI http://asc.fasb.org/extlink&oid=26872618&loc=d3e7384-122677

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section Z

-Paragraph Question 2

-Subsection 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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For the disposal group, including a component of the entity (discontinued operation), carrying amount of goodwill (adjusted for any amortization recognized prior to adoption of FAS 142 and impairment charges).

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The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.

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If the gain (loss) on sale of a disposal group, but one which is not further classified as a discontinued operation, is not separately presented on the face of the income statement, the caption in the income statement (as part of income from continuing operations before income taxes) that includes that gain (loss).

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