The WMS Multicast Data Writer plug-in is used to transmit
content through multicast streaming. You can
configure the following options for this plug-in.
Destination multicast IP address and port
Settings in this area define how your multicast is
broadcast over the network.
Type the multicast IP address.
Type the port number on the Windows Media server
that the multicast will be streamed through. You can use any valid
port number between 1 and 65535.
Enter the number of routers (hops) that your
multicast can pass through on the network before expiring.
(Windows Media Services Administrator for the Web only)
Type a custom TTL if the value is not available in
the Time-to-live (TTL) list.
Enable unicast rollover
Select this check box to enable players to
automatically switch to a unicast
stream if they cannot receive the stream through multicast.
Use this publishing point
Select this option to allow the current
publishing point to stream content by
using the Unicast Data Writer plug-in.
Use other publishing point
Select this option to redirect unicast client
connection requests to an alternate publishing point, and then type
the URL of the publishing point (for example,
rtsp://unicast_server/publishing_point_name) in the
If the properties for this plug-in appear
dimmed, you must stop the broadcast publishing point before making
any modifications. After modifying this plug-in you must run the
Multicast Announcement Wizard again to update the multicast
information (.nsc) file with your changes before restarting the
Windows Media Services is Internet Protocol
version 6 (IPv6) enabled. IPv6 is the newest version of the
Internet Protocol and was designed to accommodate the rapidly
increasing demand for unique IP addresses. IPv6 increases the IP
address size from 32 bits to 128 bits to support more levels of
addressing hierarchy and a greater number of addressable nodes. Not
all networks are configured to use IPv6, but Windows Media Services
will automatically use it when it is available. For more
information about IPv6, refer to the IPv6 page at the Microsoft Web site.
Multicast streaming and the WMS Multicast Data
Writer plug-in are available only if Windows Media Services 9
Series is running on the following editions of the operating
system: Windows Server 2003, Enterprise Edition and Windows Server
2003, Datacenter Edition. If you are running Windows Server 2003,
Standard Edition, these features are not supported.