SUNNYVALE -- Under pressure from hedge funds to drastically reduce expenses, computer-networking company Juniper Networks is cutting 6 percent of its worldwide workforce, or about 570 employees.

Announcing the move in a regulatory filing Tuesday, Sunnyvale-based Juniper said the cuts are "designed to focus the company on high-growth segments and to right-size certain functions." It noted that "the majority of these reductions are immediate and a significant proportion are middle-management positions."

Juniper spokeswoman Cindy Ta declined to say precisely how many employees will lose their jobs or how many of them are in the Bay Area.

"We are not disclosing a breakout of percentages by function, organization or geographic region," she said.

As of Dec. 31, the company said it had 9,483 full-time employees. A 6 percent cut would amount to just under 570 positions.

Cutting employees is a "difficult thing for any company to do, but unfortunately it's a necessity at Juniper, given the bloated expense structure" at the corporation, said Brian Marshall, an analyst with International Strategy and Investment Group.

The company has been under pressure to reduce expenses for some time.

In October 2012, it announced it was cutting 500 workers "to align its resources to improve productivity and effectiveness."

And more recently, CEO Shaygan Kheradpir -- who replaced retired Chief Executive Kevin Johnson in November -- has come under fire from two hedge funds to slim Juniper down even more.

In February, he agreed to demands by Elliott Management to cut $160 million in expenses and return about $3 billion to investors. The other hedge fund similarly calling for cuts is Jana Partners. Officials with the two funds did not immediately respond to a request for comment.

Besides jettisoning employees, Juniper said it is discontinuing its "application delivery controller technology" -- which helps keep computer networks from getting bogged down -- and will "consolidate its facilities." The latter move, it said, "will result in the future disposal of approximately 300,000 square feet of leased facilities, representing approximately 12 percent of our global facilities square footage."

As a result of the job cuts, the company said it will incur about $35 million in "severance and other related employee termination expenses in the first quarter of fiscal 2014."

The company added that it planned to further restructure its business in the near future.

Juniper's stock rose 45 cents, or 1.7 percent, to close Wednesday at $26.80.

Contact Steve Johnson at 408-920-5043. Follow him at Twitter.com/steveatmercnews.