Cisco veteran Roland Acra is rejoining the company as senior vice president and general manager of its Data Center Business Group, which is home to the company’s newly combined data center assets.

Acra will be responsible for the company’s data center strategy and portfolio of products including the NX2/4/5/6K, NX3K, NX7K, and NX9K, UCS and SAN switching products. He will also oversee the NXOS development team.

In a blog post from David Goeckeler, senior vice president and general manager of the Cisco’s networking and security business, he described Acra as an expert in Internet routing and communication protocol development.

Acra’s first stint with Cisco started in 1991 and lasted until 2003. During that time he held several general management and leadership jobs. In 2010 he rejoined again as vice president of the company’s Smart Grid Business Unit after Cisco acquired wireless sensor company Arch Rock where he was president and CEO.

Acra also previously served as CEO of Procket Networks, which Cisco purchased in 2004.

Arca’s rejoining of the company comes after a long string of executive departures from Cisco. Since the beginning of the year, the company has lost it chief technology officer Zorawar Biri Singh, senior vice president Rob Soderbery, who ran Cisco’s enterprise business; Kelly Ahuja, senior vice president of the service provider business; and Pankaj Patel, chief development officer.

In August, Cisco announced layoffs of 5,500, part of a plan to shift priorities to areas such as security, the Internet of Things (IoT), and the cloud.