Cirrus 2 and Flash Player 10.1 / Air 2
Codename Cirrus enables peer assisted networking using the Real Time Media Flow Protocol (RTMFP) within the Adobe Flash® Platform. RTMFP is the evolution of media delivery and real time communication over the Internet enabling peers on the network to assist in delivery. The most important features of RTMFP include low latency, end-to-end peering capability, security and scalability. These properties make RTMFP especially well suited for developing real-time collaboration applications by not only providing superior user experience but also reducing cost for operators. In order to use RTMFP, Flash Player endpoints must connect to an RTMFP-capable server, such as the Cirrus service. Cirrus is a beta, hosted rendezvous service that aids establishing communications between Flash Player endpoints. Unlike Adobe Flash Media Server, Cirrus does not support media relay, shared objects, scripting, etc. So by using Cirrus, you can only develop applications where Flash Player endpoints are di