Brian,
Have you taken bandwidth usage into consideration? Keep in mind that
DSS will stream movies at 2x speed until the client's buffer has been
filled to a certain point. That means that a 300kbit/sec movie will be
sent at ~600kbit/sec for a while when the client first connects.
>From the sound of it, your issue probably isn't related to WM services,
unless WM server is using a large amount of system/network resources.
HTTP and UDP transports behave somewhat differently- "overbuffering"
(sending the data to the client at speeds greater than 1x) is a little
different, and packet loss is dealt with differently. It may be that
your HTTP stream was just tolerating packet loss better than UDP.. If
that's the case, then you need to isolate the cause of the packet loss.
Things to look at are potentially bad network hardware and bandwidth
availability.
You may want to start by disabling WM, and use UDP transport for DSS
streaming. If you still get packet loss, then WM isn't related to the
problem, so you really wouldn't need a second machine to run DSS. You
also may want to try using lower-bitrate movies to see if that solves
the problem.. If it does, then you may not have enough bandwidth to
serve the higher bitrate movies.
-Joel Hedden
On Tue, 2003-02-25 at 12:10, Brian Guild wrote:
> Guys,
>
> I have a box that is functioning as both a Windows Media Server streaming on
> Port 80 on one IP address, and a Darwin Streaming server streaming over 554
> on a second IP address assigned to the NIC. In this configuration, Darwin
> streams very poorly. That is, even on Hinting Optimized movies , we get
> choppiness and sometimes no video with terrible or no audio. If I go and
> stop the Windows Media Services, and restart Darwin after configuring both
> server and client to use Port 80, we get fantastic video/audio streams from
> the server over Port 80.
>
> This doesn't make sense per all of the documentation I have read. Yes, the
> Darwin Server is completely open to the public on the server end, and the
> clients are behind a firewall, but I made the appropriate firewall
> adjustment of allowing 6970-6999 UDP and 554 TCP into the LAN from the WAN.
>
> Further, it is interesting to me that I am getting the same behavior when
> using my cable modem connection as a client. My cable modem connection at
> home is completely open without any firewall configuration.
>
> We are at the point where we are going to run a seperate box for Darwin if
> we cant solve this problem!
>
> Can anyone offer any suggestions as to why this might happen as well as
> solutions?
>
> Thank you,
>
> Brian
>
> Brian Guild
> Network Manager
> Body1, Inc.
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