SAN JOSE — Cisco Systems shares jumped in after-hours trading Wednesday on a positive second-quarter report that may help ease Wall Street fears that have rattled tech stocks.

The San Jose networking giant reported second-quarter revenue of $11.8 billion, up 2 percent from a year ago. Fully reported earnings of 62 cents a share met analyst expectations, while earnings of 57 cents a share after one-time adjustments beat estimates of 54 cents.

Net income of $3.1 billion beat the estimates of analysts polled by Thomson-Reuters, who had predicted net income of $2.9 billion.

“It’s a pretty positive report,” said Jayson Noland, an analyst with Robert W. Baird. “It is reassuring to see a large company like this with broad-based and global exposure post a good quarter and give good guidance. That’s reassuring for the equity markets.”

The company suffered in the final few weeks of its quarter, which ended the third week in January amid a plunging stock market that apparently had CEOs taking a wait-and-see approach to improving their IT infrastructure.

CEO Chuck Robbins vowed to continue executing well “in challenging environments” and to “make the long-term investments our customers need (for) this next wave of technology that’s fundamentally going to change every company and every country in the world.”

He said the company’s recent acquisition of cloud company Jasper Technologies “is a strong example of how we will play a unique and strategic role unlocking value of the Internet of Things.” Under Robbins, Cisco has enthusiastically embraced the idea that the increasing connectedness of the world represents a major business opportunity.

A strategic partnership with Swedish networking and mobile giant Ericsson is beginning to produce business, Robbins said. “We have begun to close transactions together,” although at this point there’s no significant impact on revenue.

Cisco forecast revenue growth in the next quarter of 1 to 4 percent, a modest increase but one likely to reassure investors who had feared the company might slump on headwinds that include the stock market’s volatility, a strong dollar and a slowdown in China.

The networking company increased its dividend by 5 cents to 26 cents per common share and added $15 billion to a stock buyback program.

The positive news helped boost the company’s shares more than 7 percent in after-hours trading from a close of $22.51.

Cisco’s security business was up 11 percent from a year ago, while its signature routing business was up 5 percent. Wireless was flat from a year earlier.

Its switching business dropped 4 percent and its data center business was down 3 percent in a challenging end-of-quarter market.

“We delivered a strong second quarter and are managing the business extremely well in a challenging environment,” Robbins said in a report to the investment community.

Contact Pete Carey at 408-920-5419. Follow him at Twitter.com/petecarey.