1Free cash flow is defined as cash flow provided by operating activities less purchases of fixed and intangible assets
+Includes ~$24m in one-time payments related to the acquisition of the Danaher Communications Business and ~$17 million associated with the timing of reimbursements owed to NetScout by Danaher Corporation
++Includes cash provided by operations related to the acquisition of the Danaher Communications Business totaling ~$30 million
The pro forma results on both a GAAP and non-GAAP basis for fiscal years 2015 and 2016 assume that the acquisition of the Danaher Communications Business was completed on April 1, 2014. A reconciliation of each non-GAAP metric with the applicable GAAP metric is available on page R-1.