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AXIS Q9216–SLV Network Camera
Troubleshooting
'Camera not
available' displayed in
AXIS Camera Station, or
'Error reading video stream'
message in browser when
using the Java applet
Performance considerations
When setting up your system, it is important to consider how various settings and situations affect the performance. Some factors
affect the amount of bandwidth (the bitrate) required, others can affect the frame rate, and some affect both. If the load on the
CPU reaches its maximum, this also affects the frame rate.
The following factors are the most important to consider:
•
High image resolution or lower compression levels result in images containing more data which in turn affects the
bandwidth.
•
Rotating the image in the GUI will increase the product's CPU load.
•
Access by large numbers of Motion JPEG or unicast H.264 clients affects the bandwidth.
•
Simultaneous viewing of different streams (resolution, compression) by different clients affects both frame rate and
bandwidth.
Use identical streams wherever possible to maintain a high frame rate. Stream profiles can be used to ensure that
streams are identical.
•
Accessing Motion JPEG and H.264 video streams simultaneously affects both frame rate and bandwidth.
•
Heavy usage of event settings affects the product's CPU load which in turn affects the frame rate.
•
Using HTTPS may reduce frame rate, in particular if streaming Motion JPEG.
•
Heavy network utilization due to poor infrastructure affects the bandwidth.
•
Viewing on poorly performing client computers lowers perceived performance and affects frame rate.
•
Running multiple AXIS Camera Application Platform (ACAP) applications simultaneously may affect the frame rate and
the general performance.
Need more help?
Useful links
•
How to assign an IP address and access your device
Contact support
Contact support at axis.com/support.
• An installed and running application, such as AXIS Video Motion Detection, will always
consume a video stream, whether it is used or not. A stopped application does not
consume a video stream.
The camera can deliver more than four simultaneous streams provided the configuration of any
additional stream is identical to any of the first four streams. Identical configuration implies exactly
the same resolution, frame rate, compression, video format, rotation etc. For more information see
the white paper "Max number of unique video stream configurations", available at axis.com.
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