Ixia 2016 SeniorOfficer Bonus Plan (As adopted by the Compensation Committee of the Board of Directors of Ixia on March 21, 2016)

Exhibit 10.1

Ixia

2016 Senior Officer Bonus Plan

(As adopted by the Compensation Committee of the Board of Directors of Ixia on March 21, 2016)

This 2016 Senior Officer Bonus Plan (this “Plan”) is effective as of March 21, 2016 (the “Effective Date”) and sets forth the terms under which certain senior officers of Ixia and/or its subsidiaries (each, an “Eligible Officer,” as further defined below) may earn and receive an annual cash incentive award (an “Annual Bonus”) based upon Ixia’s 2016 financial performance. Ixia and its subsidiaries are individually and collectively referred to herein as the “Company.”

Ixia believes that a portion of each Eligible Officer’s annual compensation should be “at risk” and directly linked to the Company’s consolidated financial performance. This Plan is designed to motivate Eligible Officers to achieve certain financial results for Ixia and to reward Eligible Officers for the achievement of those results. Ixia believes that the achievement of those results is important for Ixia’s success.

The Compensation Committee of Ixia’s Board of Directors (the “Committee”) will administer and have final authority on all matters relating to this Plan. The Committee may interpret and construe this Plan, decide any and all matters arising under or in connection with this Plan, and correct any defect, supply any omission, or reconcile any inconsistency in this Plan. All Annual Bonus payouts under this Plan are subject to the prior approval of the Committee as provided herein. All decisions by the Committee regarding this Plan will be made in the Committee’s sole discretion and will be final and binding on all persons having or claiming any interest in this Plan.

The Committee may, from time to time, designate one or more senior officers of the Company as Eligible Officers. As of the Effective Date, the individuals identified in Exhibit A attached hereto, in their capacities with Ixia set forth opposite their names in such exhibit, have been designated by the Committee as Eligible Officers and are eligible to participate in this Plan.

An Eligible Officer whose title and/or responsibilities with the Company change after the Effective Date but who remains an officer of the Company will remain an Eligible Officer and will be entitled to continue to participate in this Plan on the same terms and conditions that applied immediately prior to such change, unless such Eligible Officer’s participation in this Plan is modified by the Committee pursuant to a duly adopted Committee resolution.

In order to earn and be eligible to receive an Annual Bonus under this Plan, an Eligible Officer must be employed by the Company as an Eligible Officer on the date on which such Annual Bonus is paid, unless such requirement has been, or is, waived by the Committee pursuant to a duly adopted Committee resolution.

As soon as is reasonably practicable following the end of Ixia’s 2016 fiscal year, the Committee will determine, in accordance with the terms of this Plan, and approve the funding (if any) for a single cash bonus pool (the “Bonus Pool”) for both (i) Eligible Officers and (ii) certain other employees of the Company who are not subject to this Plan (the “Other Employees”). The Bonus Pool will be used to pay Annual Bonuses to Eligible Officers and cash bonuses to the

Other Employees (“Employee Bonuses”) under the terms of an employee bonus plan (the “Employee Bonus Plan”) that is intended to encourage and reward those Other Employees’ efforts on behalf of the Company in 2016. The Bonus Pool will also be used to discharge the Company’s liability for any taxes (e.g., FICA, FUTA, and similar taxes) due and payable by the Company with respect to any Annual Bonuses and Employee Bonuses that are paid by the Company. The method for calculating the Bonus Pool funding is set forth below.

Definitions

As used herein, the following terms shall have the meanings set forth below:

“Adjusted Income” means Ixia’s operating income from continuing operations calculated on a consolidated basis for the fiscal year ending December 31, 2016, except that such operating income shall be adjusted to (i) add back all amounts that have been or will be paid out from the Bonus Pool, (ii) exclude any equity incentive compensation expenses, restructuring charges, impairment charges, acquisition-related amortization and other M&A-related charges, costs and expenses incurred in connection with or related to litigation or investigations arising outside the Company’s ordinary course of business, costs and expenses that are unusual in nature or infrequent in occurrence, and similar charges or income, and (iii) exclude the effect of any acquisition(s) by the Company during 2016 of any other company or business (e.g., through a merger or acquisition of stock or assets) (any such acquisition is referred to herein as an “Acquisition”).

“Adjusted Margin” means the ratio (expressed as a percentage) of Adjusted Income to Revenue.

“Revenue” means the Company’s consolidated revenues for the fiscal year ending December 31, 2016, excluding any revenues directly resulting from any Acquisition.

“Target Margin” means the percentage established supplementally by the Committee on the date of adoption of this Plan as the “Target Margin” for purposes of this Plan.

“Threshold Margin” means the percentage established supplementally by the Committee on the date of adoption of this Plan as the “Threshold Margin” for purposes of this Plan.

Bonus Pool Funding Calculations

The amount of any Bonus Pool funding will be calculated as follows:

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If the Compensation Committee determines that the Bonus Pool is funded, then at the time of or promptly following the Committee’s determination and approval of the amount of the Bonus Pool, the Committee will determine in accordance with this section and then approve the amounts of the Annual Bonuses payable to the Eligible Officers who, as of the date of such determination (the “Determination Date”), are eligible to receive Annual Bonuses hereunder.

Definitions

As used herein, the following terms shall have the meanings set forth below:

“Annual Bonus Opportunity” means, for each Eligible Officer, the product of that individual’s Bonus Percentage and his or her Base Salary.

“Base Salary” means the total amount of base salary actually earned by an Eligible Officer for work performed for the Company as an officer or employee of the Company during Ixia’s 2016 fiscal year. For the avoidance of doubt, Base Salary does not include, among other things, reimbursement for moving expenses, relocation benefits, bonuses for any fiscal year, stock option or other equity incentive compensation, benefits received from participation in an employee stock purchase plan, discretionary bonuses, disability benefits, sign-on bonuses, 401(k) Plan matching contributions, vacation/PTO cash outs, on call pay, or similar payments.

“Bonus Percentage” refers to a fixed percentage of an Eligible Officer’s Base Salary. The Bonus Percentage for each Eligible Officer as of the Effective Date is set forth in Exhibit A attached hereto. The Committee shall establish the Bonus Percentage for any individuals designated as Eligible Officers by the Committee following the adoption of this Plan.

“Available Bonus Pool Funds” means the total amount contributed to the Bonus Pool pursuant to the foregoing section of this Plan, less (i) the total amount of all Employee Bonuses previously paid to, or that will be paid to, Other Employees under the terms of the Employee Bonus Plan, (ii) the total amount of the Company’s liability for any taxes

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(e.g., FICA, FUTA, and similar taxes) that have been paid or will become due and payable by the Company with respect to any Employee Bonuses or Annual Bonuses, and (iii) any additional amount that the Committee chooses, in its sole discretion, to deduct. However, in no event shall the Available Bonus Pool Funds be less than $0. The portion of any Bonus Pool allocated to the Employee Bonus Plan will generally be proportionate to the sum of the target bonuses for all individuals participating in the Employee Plan as compared to the sum of the target bonuses for all individuals participating in the Employee Plan and all individuals participating in this Plan.

Annual Bonus Calculations

The Committee will use the following mathematical formula to calculate each Eligible Officer’s Annual Bonus hereunder:

(A / B) x C

For purposes of the foregoing formula:

However, in no event may an Eligible Officer’s Annual Bonus exceed 200% of that Eligible Officer’s Annual Bonus Opportunity. In the event that an Eligible Officer’s Annual Bonus would exceed 200% of that Eligible Officer’s Annual Bonus Opportunity, then the Committee shall reduce that Eligible Officer’s Annual Bonus to an amount that is equal to 200% of that Eligible Officer’s Annual Bonus Opportunity.

Each Annual Bonus that becomes payable to an Eligible Officer hereunder will be paid in one lump sum (subject to applicable withholding taxes and other deductions) promptly following the Determination Date and in any event on or prior to March 15, 2017.

In the event that any of the Company’s consolidated financial statements for 2016 are restated, or the Company announces that any such statements will be restated, in either case to reflect a less favorable financial condition or less favorable results of operations than previously determined and/or reported, then the Committee has the absolute right in its sole discretion to not pay, to reduce, to delay the payment of, or to recover all or a portion of any Annual Bonus awarded to any Eligible Officer pursuant to the terms of this Plan. However, subject to the following paragraph, any such recovery must occur prior to the third anniversary of the date on which such Annual Bonus was paid.

Any amounts paid under this Plan will also be subject to recoupment in accordance with any clawback policy that the Company is required to adopt pursuant to the listing standards of any national securities exchange or association on which its securities are listed or as is otherwise required by applicable law.

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Exhibit A

Eligible Officers