Cisco Systems Inc (CSCO.O) on Wednesday raised its full-year earnings forecast and reported quarterly revenue above expectations on strong demand for its enterprise communication tools and 5G gear. Shares of the company rose about 5 percent in extended trading after the networking giant announced a $15 billion increase to its stock repurchase program. The company, which sells routers, switches, security services and software products, has been heavily investing in its cloud offerings to keep up with the pandemic-fueled surge in demand for its videoconferencing platform Webex, virtual private network and cybersecurity products. “We continue to see incredibly strong demand across our portfolio… Our robust order strength, record backlog and double-digit growth in annual recurring revenue position us well to deliver growth,” Chief Executive Officer Chuck Robbins said. The company is also making new deals and acquisitions to build its software business as the scope for a hybrid-work model grows. It’s …