Exhibit 99.1

CISCO REPORTS FIRST QUARTER EARNINGS

News Summary:

SAN JOSE, Calif. — November 17, 2021 — Cisco today reported first quarter results for the period ended October 30, 2021. Cisco reportedfirst quarter revenue of $12.9 billion, net income on a generally accepted accounting principles (GAAP) basis of $3.0 billion or $0.70 per share, and non-GAAP net income of $3.5 billion or $0.82 per share.

“In Q1, we had robust growth and continued strong demand despite the very dynamic supply environment,” said Chuck Robbins, Chair and CEO of Cisco.“Cisco’s technology sits at the heart of the accelerated digital transformation happening today. Our breakthrough innovation, strong demand, and the success of our business transformation position us well for another year of growth infiscal 2022.”

“Our teams executed well in a challenging environment, delivering balanced profitable growth with revenue and non-GAAP EPS bothgrowing 8% year over year,” said Scott Herren, CFO of Cisco. “We also continued to make significant progress in our business model transformation. Remaining performance obligations and annualized recurring revenue both grew 10% year overyear with product ARR growth of 21% providing more predictability and visibility to our long-term growth.”

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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 inthe section entitled “Reconciliations of GAAP to non-GAAP Measures.”

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Financial Summary

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

Q1 FY 2022 Highlights

Revenue — Totalrevenue was up 8% at $12.9 billion, with product revenue up 11% and service revenue up 1%. Revenue by geographic segment was: Americas up 5%, EMEA up 11%, and APJC up 15%. Product revenue performance was led by growth in Secure, Agile Networks up10%, Internet for the Future up 46%, End-to-End Security up 4%, and Optimized Application Experiences up 18%. Hybrid Work was down 7%.

Gross Margin — On a GAAP basis, total gross margin, product gross margin, and service gross margin were 62.4%, 61.5%, and 65.2%,respectively, as compared with 63.6%, 62.7%, and 65.8%, respectively, in the first quarter of fiscal 2021.

On a non-GAAP basis, totalgross margin, product gross margin, and service gross margin were 64.5%, 63.8%, and 66.5%, respectively, as compared with 65.8%, 65.3%, and 67.1%, respectively, in the first quarter of fiscal 2021.

Total gross margins by geographic segment were: 64.5% for the Americas, 64.4% for EMEA and 64.7% for APJC.

Operating Expenses — On a GAAP basis, operating expenses were $4.6 billion, down 8%, and were 35.8% of revenue. Non-GAAP operating expenseswere $4.0 billion, up 2%, and were 31.2% of revenue.

Operating Income — GAAP operating income was $3.4 billion, up 34%,with GAAP operating margin of 26.7%. Non-GAAP operating income was $4.3 billion, up 10%, with non-GAAP operating margin at 33.3%.

Provision for Income Taxes — The GAAP tax provision rate was 18.5%. The non-GAAP tax provision rate was 19.0%.

Net Income and EPS — On a GAAP basis, net income was $3.0 billion, an increase of 37%, and EPS was $0.70, an increase of 37%. On a non-GAAPbasis, net income was $3.5 billion, an increase of 8%, and EPS was $0.82, an increase of 8%.

Cash Flow from Operating Activities— $3.4 billion for the first quarter of fiscal 2022, a decrease of 16% compared with $4.1 billion for the first quarter of fiscal 2021.

Balance Sheet and Other Financial Highlights

Cashand Cash Equivalents and Investments — $23.3 billion at the end of the first quarter of fiscal 2022, compared with $24.5 billion at the end of fiscal 2021.

Remaining Performance Obligations (RPO) — $30.1 billion, up 10% in total, with 53% of this amount to be recognized as revenue over the next12 months. Product RPO were up 18% and service RPO were up 4%.

Deferred Revenue — $22.1 billion, up 8% in total, withdeferred product revenue up 19%. Deferred service revenue was flat.

Capital Allocation — In the first quarter of fiscal2022, we returned $1.8 billion to stockholders through share buybacks and dividends. We declared and paid a cash dividend of $0.37 per common share, or $1.6 billion, and repurchased approximately 5 million shares of common stock under our stockrepurchase program at an average price of $56.49 per share for an aggregate purchase price of $256 million. The remaining authorized amount for stock repurchases under the program is $7.7 billion with no termination date.

Acquisitions

In the first quarter of fiscal 2022, weclosed the acquisition of Epsagon Ltd., a privately held modern observability company with expertise in distributed tracing solutions for modern applications and technologies, including containers and serverless environments.

In addition, we announced our intent to acquire replex GmbH, a privately held enterprise software company based in Germany.

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Guidance

Cisco expects to achieve the following results for the second quarter of fiscal 2022:

Cisco estimates that GAAP EPS will be $0.64 to $0.68 for the second quarter of fiscal 2022.

Cisco expects to achieve the following results for fiscal 2022 (no change from our previous guidance):

Cisco estimates that GAAP EPS will be $2.77 to $2.89 for fiscal 2022.

Our Q2 FY 2022 and FY 2022 guidance assumes an effective tax provision rate of 18% for GAAP and 19% for non-GAAP results.

A reconciliation between the Guidance on a GAAP and non-GAAP basis is provided in the tables entitled “GAAP to non-GAAP Guidance” located in thesection 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

(Inmillions, except percentages)

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

CISCO SYSTEMS, INC.

GROSS MARGIN PERCENTAGE BY SEGMENT

(In percentages)

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.

Effective for the first quarter of fiscal 2022, we began reporting our revenue in the following categories: Secure, Agile Networks; Hybrid Work; End-to-EndSecurity; Internet for the Future; Optimized Application Experiences; Other Products and Services. This change better aligns our product categories with our strategic priorities. The reclassified product category revenue by quarter for fiscal 2019through fiscal 2021 as well as other information is available on Cisco’s Investor Relations website at https://investor.cisco.com/investor-relations/financial-information/Financial-Results/default.aspx.

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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.

REMAINING PERFORMANCE OBLIGATIONS

(In millions, except percentages)

We expect 53% of total RPO at October 30, 2021 will be recognized as revenue over the next 12 months.

CISCO SYSTEMS, INC.

DEFERRED REVENUE

(Inmillions)

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

(Inpercentages)

GAAP TO NON-GAAP GUIDANCE

Except as noted above, this guidance does not include the effects of any future acquisitions/divestitures, asset impairments, restructurings, (gains) andlosses on equity investments 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 ReformAct of 1995. These forward-looking statements include, among other things, statements regarding future events (such as our ability to innovate, the demand for our technology, the continued success of our business transformation, the growth of ourbusiness, and the continued progress in our business model transformation to more recurring revenue) and the future financial performance of Cisco (including the guidance for Q2 FY 2022 and full year FY 2022) 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 and related public healthmeasures; 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 informationtechnology 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 customermarkets; the return on our investments in certain priorities, key growth areas, and in certain geographical locations, as well as maintaining leadership in Secure, Agile Networks and services; the timing of orders and manufacturing and customer leadtimes; 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 acquirebusinesses 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 thedata 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,other intellectual property, antitrust, stockholder and other matters, and governmental investigations; our ability to achieve the benefits of restructurings and possible changes in the size and timing of related charges; cyber-attacks, databreaches or malware; vulnerabilities and critical security defects; terrorism; natural catastrophic events (including as a result of global climate change); any other pandemic or epidemic; our ability to achieve the benefits anticipated from ourinvestments 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 globalnature 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 fromexaminations 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 9, 2021. The financial information contained in this release shouldbe 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 endedOctober 30, 2021 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 anysuch 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 thisrelease.

This release includes non-GAAP net income, non-GAAP gross margins, non-GAAP operating expenses, non-GAAP operating income and margin, non-GAAPeffective 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 anon-GAAP basis.

These non-GAAP measures are not in accordance with, or an alternative for, measures prepared in accordance with generally acceptedaccounting 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 havelimitations 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 inconjunction with the corresponding GAAP measures.

Cisco believes that the presentation of non-GAAP measures when shown in conjunction with thecorresponding 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, theincome 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, Ciscohas 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 itsfinancial 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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Annualized Recurring Revenue represents the annualized revenue run-rate of active subscriptions, termlicenses, and maintenance contracts at the end of a reporting period, net of rebates to customers and partners as well as certain other revenue adjustments. Includes both revenue recognized ratably as well as upfront on an annualized basis.

About Cisco

Cisco (Nasdaq: CSCO) is the worldwideleader 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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