Exhibit 99.1

CISCO REPORTS FIRST QUARTER EARNINGS

SAN JOSE, Calif. — November 12, 2020 — Cisco today reported first quarter results for the period ended October 24, 2020. Cisco reported first quarter revenue of $11.9 billion, net income on a generally accepted accounting principles (GAAP) basis of $2.2 billion or $0.51 per share, and non-GAAP net income of $3.2 billion or $0.76 per share.

“Cisco is off to a solid start in fiscal 2021 and we are encouraged by the signs of improvement in our business as we continue to navigate the pandemic and other macro uncertainties,” said Chuck Robbins, chairman and CEO of Cisco. “Our focus is on winning with a differentiated innovative portfolio, long-term growth and being a trusted technology partner offering choice and flexibility to our customers. We see many great opportunities ahead as every company in every industry is accelerating its digital-first strategy.”

GAAP Results

Non-GAAP Results

Reconciliations between net income, EPS, and other measures on a GAAP and non-GAAP basis are provided in the tables located in the section entitled “Reconciliations of GAAP to non-GAAP Measures.”

“Our Q1 results reflect good execution with strong margins in a challenging environment,” said Kelly Kramer, CFO of Cisco. “We continued to transform our business through more software offerings and subscriptions, driving 10% year over year growth in remaining performance obligations. We delivered strong growth in operating cash flow and returned $2.3 billion to shareholders.”

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Financial Summary

All comparative percentages are on a year-over-year basis unless otherwise noted.

Q1 FY 2021 Highlights

Revenue — Total revenue was $11.9 billion, down 9%, with product revenue down 13% and service revenue up 2%. Revenue by geographic segment was: Americas down 10%, EMEA down 10%, and APJC down 7%. Product revenue was led by growth in Security, up 6%. Infrastructure Platforms was down 16% and Applications was down 8%.

Gross Margin — On a GAAP basis, total gross margin, product gross margin, and service gross margin were 63.6%, 62.7%, and 65.8%, respectively, as compared with 64.3% for each in the first quarter of fiscal 2020.

On a non-GAAP basis, total gross margin, product gross margin, and service gross margin were 65.8%, 65.3%, and 67.1%, respectively, as compared with 65.9%, 66.1%, and 65.4%, respectively, in the first quarter of fiscal 2020.

Total gross margins by geographic segment were: 67.3% for the Americas, 63.9% for EMEA and 63.0% for APJC.

Operating Expenses — On a GAAP basis, operating expenses were $5.0 billion, up 3%, and were 42.0% of revenue. Non-GAAP operating expenses were $4.0 billion, down 7%, and were 33.1% of revenue.

Operating Income — GAAP operating income was $2.6 billion, down 28%, with GAAP operating margin of 21.5%. Non-GAAP operating income was $3.9 billion, down 12%, with non-GAAP operating margin at 32.7%.

Provision for Income Taxes — The GAAP tax provision rate was 18.9%. The non-GAAP tax provision rate was 19.0%.

Net Income and EPS — On a GAAP basis, net income was $2.2 billion, a decrease of 26%, and EPS was $0.51, a decrease of 25%. On a non-GAAP basis, net income was $3.2 billion, a decrease of 11%, and EPS was $0.76, a decrease of 10%.

Cash Flow from Operating Activities — $4.1 billion for the first quarter of fiscal 2021, an increase of 14% compared with $3.6 billion for the first quarter of fiscal 2020.

Balance Sheet and Other Financial Highlights

Cash and Cash Equivalents and Investments — $30.0 billion at the end of the first quarter of fiscal 2021, compared with $29.4 billion at the end of fiscal 2020.

Deferred Revenue — $20.5 billion, up 10% in total, with deferred product revenue up 15%. Deferred service revenue was up 7%.

Remaining Performance Obligations — $27.5 billion at the end of the first quarter of fiscal 2021, up 10%.

Capital Allocation — In the first quarter of fiscal 2021, we returned $2.3 billion to shareholders through share buybacks and dividends. We declared and paid a cash dividend of $0.36 per common share, or $1.5 billion, and repurchased approximately 20 million shares of common stock under our stock repurchase program at an average price of $40.44 per share for an aggregate purchase price of $800 million. The remaining authorized amount for stock repurchases under the program is $10.0 billion with no termination date.

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Guidance for Q2 FY 2021

Cisco expects to achieve the following results for the second quarter of fiscal 2021:

Cisco estimates that GAAP EPS will be $0.55 to $0.60 in the second quarter of fiscal 2021.

A reconciliation between the Guidance for Q2 FY 2021 on a GAAP and non-GAAP basis is provided in the table entitled “GAAP to non-GAAP Guidance for Q2 FY 2021” located in the section entitled “Reconciliations of GAAP to non-GAAP Measures.”

Editor’s Notes:

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CISCO SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In millions, except per-share amounts)

(Unaudited)

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CISCO SYSTEMS, INC.

REVENUE BY SEGMENT

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

CISCO SYSTEMS, INC.

GROSS MARGIN PERCENTAGE BY SEGMENT

(In percentages)

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CISCO SYSTEMS, INC.

REVENUE FOR GROUPS OF SIMILAR PRODUCTS AND SERVICES

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

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CISCO SYSTEMS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In millions)

(Unaudited)

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CISCO SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

(Unaudited)

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CISCO SYSTEMS, INC.

DEFERRED REVENUE

(In millions)

CISCO SYSTEMS, INC.

REMAINING PERFORMANCE OBLIGATIONS

(In millions, except percentages)

CISCO SYSTEMS, INC.

DIVIDENDS PAID AND REPURCHASES OF COMMON STOCK

(In millions, except per-share amounts)

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GAAP TO NON-GAAP NET INCOME

(In millions)

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GAAP TO NON-GAAP EPS

Amounts may not sum due to rounding.

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GROSS MARGINS, OPERATING EXPENSES, OPERATING MARGINS, INTEREST AND OTHER INCOME (LOSS), NET, AND NET INCOME

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

EFFECTIVE TAX RATE

(In percentages)

GAAP TO NON-GAAP GUIDANCE FOR Q2 FY 2021

Except as noted above, this guidance does not include the effects of any future acquisitions/divestitures, asset impairments, restructurings and significant tax matters or other events, which may or may not be significant unless specifically stated.

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Forward Looking Statements, Non-GAAP Information and Additional Information

This release may be deemed to contain forward-looking statements, which are subject to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, among other things, statements regarding future events (such as improvement in our business as we continue to navigate the pandemic and other macro uncertainties, our ability to execute on our strategy to focus on winning with a differentiated innovative portfolio, long-term growth and being a trusted technology partner offering choice and flexibility to our customers, our future opportunities as every company in every industry is accelerating its digital-first strategy, our ability to continue to transform our business through more software offerings and subscriptions, and our ability to continue to deliver strong growth in operating cash flow and return value to our shareholders) and the future financial performance of Cisco (including the guidance for Q2 FY 2021) that involve risks and uncertainties. Readers are cautioned that these forward-looking statements are only predictions and may differ materially from actual future events or results due to a variety of factors, including: the impact of the COVID-19 pandemic; business and economic conditions and growth trends in the networking industry, our customer markets and various geographic regions; global economic conditions and uncertainties in the geopolitical environment; overall information technology spending; the growth and evolution of the Internet and levels of capital spending on Internet-based systems; variations in customer demand for products and services, including sales to the service provider market and other customer markets; the return on our investments in certain priorities, key growth areas, and in certain geographical locations, as well as maintaining leadership in routing, switching and services; the timing of orders and manufacturing and customer lead times; changes in customer order patterns or customer mix; insufficient, excess or obsolete inventory; variability of component costs; variations in sales channels, product costs or mix of products sold; our ability to successfully acquire businesses and technologies and to successfully integrate and operate these acquired businesses and technologies; our ability to achieve expected benefits of our partnerships; increased competition in our product and service markets, including the data center market; dependence on the introduction and market acceptance of new product offerings and standards; rapid technological and market change; manufacturing and sourcing risks; product defects and returns; litigation involving patents, intellectual property, antitrust, shareholder and other matters, and governmental investigations; our ability to achieve the benefits of the announced restructuring and possible changes in the size and timing of the related charges; cyber-attacks, data breaches or malware; vulnerabilities and critical security defects; terrorism; natural catastrophic events; any other pandemic or epidemic; our ability to achieve the benefits anticipated from our investments in sales, engineering, service, marketing and manufacturing activities; our ability to recruit and retain key personnel; our ability to manage financial risk, and to manage expenses during economic downturns; risks related to the global nature of our operations, including our operations in emerging markets; currency fluctuations and other international factors; changes in provision for income taxes, including changes in tax laws and regulations or adverse outcomes resulting from examinations of our income tax returns; potential volatility in operating results; and other factors listed in Cisco’s most recent report on Form 10-K filed on September 3, 2020. The financial information contained in this release should be read in conjunction with the consolidated financial statements and notes thereto included in Cisco’s most recent report on Form 10-K as it may be amended from time to time. Cisco’s results of operations for the three months ended October 24, 2020 are not necessarily indicative of Cisco’s operating results for any future periods. Any projections in this release are based on limited information currently available to Cisco, which is subject to change. Although any such projections and the factors influencing them will likely change, Cisco will not necessarily update the information, since Cisco will only provide guidance at certain points during the year. Such information speaks only as of the date of this release.

This release includes non-GAAP net income, non-GAAP gross margins, non-GAAP operating expenses, non-GAAP operating income and margin, non-GAAP effective tax rates, non-GAAP interest and other income (loss), net, and non-GAAP net income per share data for the periods presented. It also includes future estimated ranges for gross margin, operating margin, tax provision rate and EPS on a non-GAAP basis.

These non-GAAP measures are not in accordance with, or an alternative for, measures prepared in accordance with generally accepted accounting principles and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Cisco believes that non-GAAP measures have limitations in that they do not reflect all of the amounts associated with Cisco’s results of operations as determined in accordance with GAAP and that these measures should only be used to evaluate Cisco’s results of operations in conjunction with the corresponding GAAP measures.

Cisco believes that the presentation of non-GAAP measures when shown in conjunction with the corresponding GAAP measures, provides useful information to investors and management regarding financial and business trends relating to its financial condition and its historical and projected results of operations.

For its internal budgeting process, Cisco’s management uses financial statements that do not include, when applicable, share-based compensation expense, amortization of acquisition-related intangible assets, acquisition-related/divestiture costs, significant asset impairments and restructurings, significant litigation settlements and other contingencies, gains and losses on equity investments, the income tax effects of the foregoing and significant tax matters. Cisco’s management also uses the foregoing non-GAAP measures, in addition to the corresponding GAAP measures, in reviewing the financial results of Cisco. In prior periods, Cisco has excluded other items that it no longer excludes for purposes of its non-GAAP financial measures. From time to time in the future there may be other items that Cisco may exclude for purposes of its internal budgeting process and in reviewing its financial results. For additional information on the items excluded by Cisco from one or more of its non-GAAP financial measures, refer to the Form 8-K regarding this release furnished today to the Securities and Exchange Commission.

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About Cisco

Cisco (Nasdaq: CSCO) is the worldwide leader in technology that powers the Internet. Cisco inspires new possibilities by reimagining your applications, securing your data, transforming your infrastructure, and empowering your teams for a global and inclusive future. Discover more at newsroom.cisco.com and follow us on Twitter at @Cisco.

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