Explicit And Implicit Proxies - MACROMEDIA FLASH MEDIA SERVER 2-USING FLASH MEDIA SERVER EDGE SERVERS Use Manual

With the edge servers sitting in the DMZ, the network operators can open access to port
1936, avoiding the system overhead and risk of HTTP tunneling. Because the edge server
performs stream splitting and stream caching, it uses the connection to the origin server
efficiently, reducing the Internet bandwidth cost. The user also benefits from the more reliable
connectivity.
End User
End User
80,
End User
443,
1935
End User
End User
End User
End User

Explicit and implicit proxies

Edge servers are defined by the values in the configuration files. Both explicit and implicit
(also called anonymous) proxies intercept and aggregate the clients' requests to connect to the
applications running on an origin server. The explicit edge server prefixes its address to the
origin server's Uniform Resource Identifier (URI). This configuration makes the client (the
user's computer) aware of the proxy. The URI in the explicit proxy specifies the edge servers
that will intercept the clients' connection requests to the origin server.
The identity (the IP address and port number) of the implicit proxy is hidden from the client.
The implicit proxy does not change or modify the routing information in the incoming URI
before it connects the clients to the origin server. Edge servers are also defined as implicit
proxies through the Flash proxy auto-detection process (FPAD).
Flash Media Server and network administrators can deploy Flash Media Server and route the
incoming connection requests to the origin server through one or more edge servers. These
implicit edges are transparent because the client is unaware of the proxy. They are also
sometimes referred to as interception proxies. This deployment strategy is useful to ISP and
telco providers for optimizing the flow of RTMP traffic through their networks.
10 Using Edge and Origin Servers
Firewall,
Router,
Load Balancer
Edge Server Cluster
80
443
1935
1936
DMZ
Origin
Server