VBrick Systems VB4000 Series, Admin Manual

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38 © 2008 VBrick Systems, Inc.
announcements of the multicast stream using SAP (Session Announcement Protocol).)
Announcements can also be sent to the Portal Server to allow access to these streams to
selected Portal Server clients.
The WM Appliance also serves the NSC file via HTTP so if you don't need the features of
the .asx file, you can have viewers play the multicast stream via a URL directly to the NSC file
on the VBrick. The URL can be used in a web page or embedded player or the URL can be
opened by a standalone player. The URL for the Slot1 multicast is
http://vbrickipaddress/
vbs1multi.nsc
and for Slot2 the URL is
http://vbrickipaddress/vbs2multi.nsc
. You can also
copy and paste the URL from IWS.
Configuration: Encoder > Announce (SAP)
You can optionally send network announcements using SAP (Session Announcement
Protocol) about the multicast and unicast streams created by your VBrick WM Appliance.
Other VBrick products such as EtherneTV and StreamPlayer can use the SAP
announcements to automatically create program listings to allow viewers easy access to the
streams from the VBrick (or to filter the streams by IP address). Use this IWS configuration
page to set information sent in the announcement and to control the destination address and
other parameters for the announcement network packets.
Some of the information used in the SAP announcements is also used in .asx files and/or the
.wmv header for the Windows Media streams sent from the appliance so you may wish to
configure these options even if you are not using the optional SAP transmission feature. The
settings that are used in the .asx file and/or .wmv header are
Program Name
,
Program
Author
,
Program Copyright
,
Banner
,
Rating
, and
Log URL
.