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Segment Information (Tables)
9 Months Ended
Jul. 29, 2017
Segment Reporting [Abstract]  
Schedule Of Financial Information By Reportable Segment
Summarized financial information by reportable segment for the three and nine months ended July 29, 2017, and July 30, 2016, based on the internal management reporting system, is as follows (in thousands):
 
SAN Products
 
IP Networking Products
 
Global Services
 
Total
Three months ended July 29, 2017
 
 
 
 
 
 
 
Net revenues
$
275,872

 
$
173,677

 
$
99,717

 
$
549,266

Cost of revenues
65,498

 
89,262

 
43,361

 
198,121

Gross margin
$
210,374

 
$
84,415

 
$
56,356

 
$
351,145

Three months ended July 30, 2016
 
 
 
 
 
 
 
Net revenues
$
282,114

 
$
208,881

 
$
99,726

 
$
590,721

Cost of revenues
70,630

 
117,862

 
45,330

 
233,822

Gross margin
$
211,484

 
$
91,019

 
$
54,396

 
$
356,899

Nine months ended July 29, 2017
 
 
 
 
 
 
 
Net revenues
$
864,401

 
$
520,872

 
$
298,209

 
$
1,683,482

Cost of revenues
210,445

 
275,708

 
136,301

 
622,454

Gross margin
$
653,956

 
$
245,164

 
$
161,908

 
$
1,061,028

Nine months ended July 30, 2016
 
 
 
 
 
 
 
Net revenues
$
925,799

 
$
474,556

 
$
287,956

 
$
1,688,311

Cost of revenues
223,806

 
240,991

 
127,489

 
592,286

Gross margin
$
701,993

 
$
233,565

 
$
160,467

 
$
1,096,025