PETALUMA, Calif.--(BUSINESS WIRE)--Cyan Inc. (NYSE:CYNI), a leading provider of SDN, NFV, and packet-optical solutions for network operators, today announced it has postponed its 2015 Annual Meeting of Stockholders in order to combine the Company’s annual meeting with the meeting of the Company’s stockholders required to vote on the proposed merger of Cyan with Ciena Corporation that was announced by Cyan on May 4, 2015. The 2015 Annual Meeting will take place at a date, time and location to be