Acquisitions (Narrative) (Details) (Vyatta, USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 25, 2014	Jan. 26, 2013
Vyatta
Business Acquisition
Effective Date of Acquisition	Nov. 09, 2012
Acquisition Cost Expensed		$ 0.4
Consideration Paid Held In Escrow, Amount	7.0
Consideration Paid Held In Escrow, Escrow Duration	18 months
Business Combination, Consideration Transferred
Cash consideration		43.6
Prepaid license fees consideration		1.2
Total purchase price		$ 44.8