(Reuters) -Cisco Systems said it would cut 5% of its global workforce, or more than 4,000 jobs, and lowered its annual revenue target as the company navigates a tough economy that has led to thousands of layoffs by tech firms this year.

Shares of the networking equipment maker fell more than 5% in extended trading on Wednesday, after Cisco cut the forecast to $51.5 billion to $52.5 billion from $53.8 billion to $55 billion, it projected earlier.