Ciena Corporation (NYSE:CIEN) entered into a definitive agreement to acquire Vyatta virtual routing and switching technology from AT&T Inc. (NYSE:T) on September 2, 2021. The acquisition is expected to close by the end of the calendar year.

Ciena Corporation (NYSE:CIEN) completed the acquisition of Vyatta virtual routing and switching technology from AT&T Inc. (NYSE:T) on October 31, 2021.