Segments

The Company operates in one reportable segment. Our chief operating decision maker reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance, accompanied by disaggregated information about net revenues by product and service, customer vertical, and geographic region as presented below.

The following table presents net revenues by product and service (in millions):



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Routing	$	572.5	$	574.7	$	1,094.1	$	1,078.8
Switching	276.0		209.2		517.6		384.7
Security	68.7		78.2		134.4		151.6
Total product	917.2		862.1		1,746.1		1,615.1

Total service	391.7		359.2		783.8		704.1
Total	$	1,308.9	$	1,221.3	$	2,529.9	$	2,319.2

In the first quarter of 2017, the Company began reporting revenue on the following key customer verticals: Cloud, Telecom/Cable, and Strategic Enterprise. A summary of the types of customers included in these verticals is as follows:


•	Cloud: companies that are heavily reliant on the cloud for their business model’s success. As an example, customers in the cloud vertical can include cloud service providers as well as enterprises that provide software-as-a-service, infrastructure-as-a-service, or platform-as-a-service.


•	Telecom/Cable: includes wireline and wireless carriers and cable operators.


•	Strategic Enterprise: generally is comprised of financial services; national, federal, state, and local governments; research and educational institutions, and enterprises not represented in the Cloud vertical.

The following table presents net revenues by customer vertical (in millions):



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Cloud	$	379.6	$	287.3	$	711.2	$	552.1
Telecom/Cable	562.4		571.0		1,130.9		1,089.1
Strategic Enterprise	366.9		363.0		687.8		678.0
Total	$	1,308.9	$	1,221.3	$	2,529.9	$	2,319.2

The Company attributes revenues to geographic region based on the customer’s shipping address. The following table presents net revenues by geographic region (in millions):



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Americas:
United States	$	749.1	$	661.3	$	1,407.2	$	1,240.3
Other	51.7		58.7		105.2		107.9
Total Americas	800.8		720.0		1,512.4		1,348.2
Europe, Middle East, and Africa	288.2		300.1		572.7		585.5
Asia Pacific	219.9		201.2		444.8		385.5
Total	$	1,308.9	$	1,221.3	$	2,529.9	$	2,319.2