Buffer issue

Question

I have having a similar issue as this post: 
post

I have 2 servers. 1 origin, and 1 edge. Video from the Edge
server works fine. Buffers as it should, and plays back the video
without issue. Video from the origin buffers all the time. The
default buffer is 3 seconds. We have played around with different
buffer sizes up to 20 seconds. Nothing seems to fix the issue. The
bit rate for the videos is 800kbps in H.264 format. The max
connection between server and client is 1.5mbps. So off the top of
my head everything should be running smoothly.

The weird part is that video from the origin was playing just
fine, with no buffer issues, only a few weeks back. I haven't
changed any configuration within FMS during that time.

Anyone have any idea of what might be happening, or things to
try?

Also, the Edge server is just for testing right now so I do
not want to use that to stream videos.

Thanks.

techeye · Answer

Try playback of the stream on on the origin server. If this works fine, more than likely there is a network issue.

An 800kbps stream means that you can only have 1 stream running on that 1.5 mbps link. (two connections to it would obviously mean that you would need 1.5625 mbps, and would see constant rebuffering) (oh, and don't forget the nominal tcp overhead involved.)

Is the server sync'd to a time server? And is this windows or linux? Streaming is based upon time and if the cpu drift may cause issues in playback.

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