John Mailhot explains throughput and latency in switches and discusses live SDI switching in IP, subscription and control using NMOS 5 and 6. John then takes some time to discuss what ‘good enough’ is for switching time given SDI also has a delay.
Finishing up with network topology and interoperability, this is a great look into some of the details of dealing with 2110.
The SMPTE 2110 family of essence networking protocols is based on multicast flows in the IP network. IGMP (Internet Group Multicast Protocol) is the typical method for endpoints to subscribe to the streams they want, and to leave the streams they no longer require. Concerns have been raised in the industry about the suitability of IGMP for this task, and the applicability of SDN techniques as an alternative means to managing group memberships. Speed of switching signals is a particular concern.