Juniper Networks believes that the presentation of non-GAAP financial information provides important supplemental information to management and investors regarding financial and business trends relating to the company’s financial condition and results of operations. Juniper is unable to provide a reconciliation of non-GAAP guidance measures to corresponding U.S. generally accepted accounting principles or GAAP measures on a forward-looking basis without unreasonable effort due to the overall high variability and low visibility of most of the foregoing items that have been excluded. For example, share-based compensation expense is impacted by the Company’s future hiring needs, the type and volume of equity awards necessary for such future hiring, and the price at which the Company’s stock will trade in those future periods. Amortization of intangible assets is significantly impacted by the timing and size of any future acquisitions. The items that are being excluded are difficult to predict and a reconciliation could result in disclosure that would be imprecise or potentially misleading.

This press release, including the tables above, includes the following non-GAAP financial measures derived from our Preliminary Consolidated Statements of Operations: operating income; operating margin; net income; and diluted net income per share. These measures are not presented in accordance with, nor are they a substitute for GAAP. In addition, these measures may be different from non-GAAP measures used by other companies, limiting their usefulness for comparison purposes. The non-GAAP financial measures used in the table above should not be considered in isolation from measures of financial performance prepared in accordance with GAAP. Investors are cautioned that there are material limitations associated with the use of non-GAAP financial measures as an analytical tool. In particular, certain of the adjustments to our GAAP financial measures reflect the exclusion of items that are recurring and will be reflected in our financial results for the foreseeable future.

We utilize a number of different financial measures, both GAAP and non-GAAP, in analyzing and assessing the overall performance of our business, in making operating decisions, forecasting and planning for future periods, and determining payments under compensation programs. We consider the use of the non-GAAP measures presented above to be helpful in assessing the performance of the continuing operation of our business. By continuing operation, we mean the ongoing revenue and expenses of the business, excluding certain items that render comparisons with prior periods or analysis of on-going operating trends more difficult, such as expenses not directly related to the actual cash costs of development, sale, delivery or support of our products and services, or expenses that are reflected in periods unrelated to when the actual amounts were incurred or paid. Consistent with this approach, we believe that disclosing non-GAAP financial measures to the readers of our financial statements provides such readers with useful supplemental data that, while not a substitute for financial measures prepared in accordance with GAAP, allows for greater transparency in the review of our financial and operational performance. In addition, we have historically reported non-GAAP results to the investment community and believe that continuing to provide non-GAAP measures provides investors with a tool for comparing results over time. In assessing the overall health of our business for the periods covered by the table above and, in particular, in evaluating the financial line items presented in the table above, we have excluded items in the following three general categories, each of which are described below: Acquisition and Strategic Investment Related Charges, Other Items, and Share-Based Compensation Related Items. We also provide additional detail below regarding the shares used to calculate our non-GAAP net income per share. Notes identified for line items in the table above correspond to the appropriate note description below. With respect to the items excluded from our forward-looking non-GAAP measures and reconciliation of such measures, please see the “Outlook” section above.

The above tables and reconciliations can also be found on our Investor Relations website at http://investor.juniper.net.

Note A: Acquisition and Strategic Investment Related Charges. We exclude certain expense items resulting from acquisitions including amortization of purchased intangible assets associated with our acquisitions. The amortization of purchased intangible assets associated with our acquisitions results in our recording expenses in our GAAP financial statements that were already expensed by the acquired company before the acquisition and for which we have not expended cash. Moreover, had we internally developed the products acquired, the amortization of intangible assets, and the expenses of uncompleted research and development would have been expensed in prior periods. Accordingly, we analyze the performance of our operations in each period without regard to such expenses. In addition, acquisitions result in non-continuing operating expenses, which would not otherwise have been incurred by us in the normal course of our business operations. We believe that providing non-GAAP information for acquisition-related expense items in addition to the corresponding GAAP information allows the users of our financial statements to better review and understand the historic and current results of our continuing operations, and also facilitates comparisons to less acquisitive peer companies.

Note B: Other Items. We exclude certain other items that are the result of either unique, infrequent or unplanned events, including the following, when applicable: (i) strategic partnership-related charges; (ii) legal reserve and settlement charges or benefits; (iii) gain or loss on equity investments or other significant isolated events or transactions which are not expected to occur regularly in the future that are not indicative of our core operating results; (iv) loss on extinguishment of debt; (v) significant effects of tax legislation and judicial or administrative interpretation of tax regulations, including the impact of income tax reform; (vi) recognition of previously unrecognized tax benefits that are non-recurring in nature; and (vii) the income tax effect on our financial statements of excluding items related to our non-GAAP financial measures. Additionally, the non-GAAP results exclude the effects of NQDC-related investments. It is difficult to estimate the amount or timing of these items in advance. Although these events are reflected in our GAAP financial statements, these transactions may limit the comparability of our on-going operations with prior and future periods.

In addition, we exclude restructuring benefits or charges as these result from events that arise from unforeseen circumstances, which often occur outside of the ordinary course of continuing operations. As such, we believe these expenses do not accurately reflect the underlying performance of our continuing business operations for the period in which they are incurred or comparisons to past operating results. We also exclude certain expenses incurred for the formation of a strategic partnership, as they are directly related to an event that is distinct and does not reflect current ongoing business operations. In the case of legal reserves and settlements, these gains or losses are recorded in the period in which the matter is concluded or resolved even though the subject matter of the underlying dispute may relate to multiple or different periods. As such, we believe that these expenses do not accurately reflect the underlying performance of our continuing operations for the period in which they are incurred. Additionally, we exclude previously unrecognized tax benefits that are non-recurring in nature which are recorded in the period in which applicable statutes of limitation lapse or upon the completion of tax review cycles as the tax matter may relate to multiple or different periods. Further, certain items related to global tax reform may continue to impact the business and are generally unrelated to the current level of business activity. We believe these tax events limit the comparability with prior periods and that these expenses or benefits do not accurately reflect the underlying performance of our continuing business operations for the period in which they are incurred. We also believe providing financial information with and without the income tax effect of excluding items related to our non-GAAP financial measures provide our management and users of the financial statements with better clarity regarding the on-going performance and future liquidity of our business. Because of these factors, we assess our operating performance with these amounts both included and excluded, and by providing this information, we believe the users of our financial statements are better able to understand the financial results of what we consider our continuing operations.

Note C: Share-Based Compensation Related Items. We provide non-GAAP information relative to our expense for share-based compensation and related payroll tax. Due to the varying available valuation methodologies, subjective assumptions and the variety of award types, which affect the calculations of share-based compensation, we believe that the exclusion of share-based compensation and related payroll tax allows for more accurate comparisons of our operating results to our peer companies and is useful to investors to understand the impact of share-based compensation on our results of operations. Further, expense associated with granting share-based awards does not reflect any cash expenditures by the company as no cash is expended.