Abstract: Modern Naval ships are being fitted with the latest state-of-the-art equipment and systems, resulting in an increase in the complexity and speed of command and control operations. This has created a requirement of diverse information to be exchanged in a limited amount of time between personnel and units. The Ship Data Network (SDN) based on 10 Gigabit Ethernet technologies has been envisaged to provide a broadband infrastructure on naval ships for convergence of voice, data and video applications.Ship Data Network is to fulfill stringent Network performance parameters such as sub-second failover, latency should not exceed 30ms, 30ms and 10ms for voice, video and mission critical data respectively. Data loss (Bit Error rate) should not exceed 1 in 10E9, Triple play QOS and to perform multicasting of data and video as unicastig takes a lot of Bandwidth of Network.

Keywords: QOS, SDN, LANS.