Segments

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Segments

Note 10. Segments

The Company operates in one reportable segment. The Company's chief executive officer, who is the 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 March 31,
	2020		2019
Routing	$	314.5	$	374.7
Switching	219.8		176.4
Security	74.5		67.6
Total product	608.8		618.7
Total service	389.2		383.0
Total	$	998.0	$	1,001.7

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

	Three Months Ended March 31,
	2020		2019
Cloud	$	261.9	$	223.1
Service Provider	375.5		435.6
Enterprise	360.6		343.0
Total	$	998.0	$	1,001.7

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 March 31,
	2020		2019
Americas:
United States	$	529.4	$	476.6
Other	50.1		67.0
Total Americas	579.5		543.6
Europe, Middle East, and Africa	255.0		286.2
Asia Pacific	163.5		171.9
Total	$	998.0	$	1,001.7