Este é um limite de licença definido pela Adobe:
I don't work for Adobe but can confirm that these limits are imposed by them. It basically means that for using the P2P feature in FMS you have certain connection limits imposed depending on instance type. Even though Flash Player clients connect to one another in a P2P mode they also hold a connection open to FMS to exchange fingerprints and for potential rollover from RTMFP (P2P, UDP based) to RTMP (server-client, TCP).
The underlying license type applied to the AMI is FMS Enterprise Edition, but with the said limits on P2P connections.
(Fonte: Postagem no fórum da AWS de Stefan Richter .)