Channel in Microsoft NetShow

Channel (MSFT NetShow) is a mechanism that supplies clients with information needed to receive and render Advanced Streaming Format (ASF) streams.

What is Channel in Microsoft NetShow?

In Microsoft NetShow, a mechanism that supplies clients with information needed to receive and render Advanced Streaming Format (ASF) streams. The channel specifies the multicast address and port number the clients should listen to in order to receive the stream.

The channel also specifies the data types and formats in the stream, enabling the client to correctly render the stream. NetShow saves channel information as files with the extension .nsc.

A NetShow channel is analogous to a television channel or a radio frequency: if a NetShow client is tuned to a channel at the right time, the client receives streaming information sent by the NetShow server.

NetShow channels also support additional features such as

  • Roll over to unicast:
    If clients cannot receive a multicast, you can configure the channel so that they automatically receive a unicast of the same program.

     

  • Stream distribution:
    On corporate TCP/IP networks whose routers do not support multicasting, one NetShow server can distribute a stream to other NetShow servers that are each located on separate local area network (LAN) segments. These secondary servers can then multicast to clients on their own LAN segment.

     

NOTE

NetShow supports channels only when using ASF streams.